Powered by Deep Web Technologies
Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Cement invasion  

SciTech Connect

Damage from cement and cement filtrate has been a much discussed subject since set-through-and-perforate completions were first used. Historically, much of the discussion was similar to that for rotary drilling and drilling mud - it would be nice to prevent all damage, but in the real world, some damage must be tolerated to allow the operator to reap the benefits of cementing. The principal perceived formation damage due to cement invasion is seen by the operator as reducing production. The pure idealist requires full potential production under all alternatives, and would to complete all oil and gas wells free of any formation damage. The more practical idealist holds that damage would result in lower production with the completion method he prefers should be prevented. The pragmatic operator compares the cost of preventing damage to the cost of correcting the damage. Even an extremely high damage ratio is academic if the planned stimulation treatment eliminates the influence the cement invasion might have on production. Formations with permeability high enough to yield economical production without some sort of stimulation or cleanup treatment are unlikely to be subject to significant cement filtrate damage.

Sutton, D.L.

1988-09-01T23:59:59.000Z

2

Zinc electrode with cement additive  

DOE Patents (OSTI)

A zinc electrode having a cement additive, preferably, Portland Cement, distributed in the zinc active material.

Charkey, Allen (Brookfield, CT)

1982-06-01T23:59:59.000Z

3

Opportunities in geophysics  

Science Conference Proceedings (OSTI)

What are the chances of a physicist finding an agreeable job in geophysics? The apparently poor prospects for jobs in academic physics led me to explore the possibilities in geophysics; this field

H. Richard Crane

1971-01-01T23:59:59.000Z

4

Geophysics I. Seismic Methods  

SciTech Connect

During the past two decades, the technology of geophysics has exploded. At the same time, the petroleum industry has been forced to look for more and more subtle traps in more and more difficult terrain. The choice of papers in this geophysics reprint volume reflects this evolution. The papers were chosen to help geologists, not geophysicists, enhance their knowledge of geophysics. Math-intensive papers were excluded because those papers are relatively esoteric and have limited applicability for most geologists. This volume concentrates on different seismic survey methods. Each of the 38 papers were abstracted and indexed for the U.S. Department of Energy's Energy Data Base.

Beaumont, E.A.; Foster, N.H. (comps.)

1989-01-01T23:59:59.000Z

5

Fiber optic geophysical sensors  

DOE Patents (OSTI)

This invention is comprised of a fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects. 2 figs.

Homuth, E.F.

1990-01-01T23:59:59.000Z

6

Fiber optic geophysical sensors  

DOE Patents (OSTI)

This invention is comprised of a fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects. 2 figs.

Homuth, E.F.

1990-12-31T23:59:59.000Z

7

Letter from California Portland Cement CEO to the Cement Industry...  

NLE Websites -- All DOE Office Websites (Extended Search)

Letter from California Portland Cement CEO to the Cement Industry Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing...

8

Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Geophysical Techniques Geophysical Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geophysical Techniques Details Activities (2) Areas (1) Regions (0) NEPA(4) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: may be inferred Stratigraphic/Structural: may be inferred Hydrological: may be inferred Thermal: may be inferred Dictionary.png Geophysical Techniques: Geophysics is the study of the structure and composition of the earth's interior. Other definitions:Wikipedia Reegle Introduction Geophysical techniques measure physical phenomena of the earth such as gravity, magnetism, elastic waves, electrical and electromagnetic waves.

9

Geophysical Methods | Open Energy Information  

Open Energy Info (EERE)

Geophysical Methods Geophysical Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geophysical Methods Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Geophysical Techniques Parent Exploration Technique: Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Geophysical Methods: Methods used to measure the physical properties of the earth Other definitions:Wikipedia Reegle Introduction There are five main types of geophysical methods used for geothermal resource discovery: Seismic Methods (active and passive) Electrical Methods Magnetic Methods Gravity Methods Radiometric Methods Seismic methods dominates oil and gas exploration, and probably accounts

10

The Visible Cement Dataset Homepage  

Science Conference Proceedings (OSTI)

NIST. The Visible Cement Dataset is a collection of three-dimensional data sets of hydrating cement, Plaster of Paris, and ...

2013-09-25T23:59:59.000Z

11

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

E-Print Network (OSTI)

P. , "Investigations on hydraulic cement from spent oilCO, April 16-18, 1980 HYDRAULIC CEMENT PREPARATION FROMUniversity of California. HYDRAULIC CEMENT PREPARATION FROM

Mehta, P.K.

2013-01-01T23:59:59.000Z

12

Case Study of the California Cement Industry  

E-Print Network (OSTI)

2 compares cement industry electricity and natural gas useTable 2. Cement Industry Electricity and Natural GasFigure 2. Cement Industry End Use Electricity Consumption

Coito, Fred; Powell, Frank; Worrell, Ernst; Price, Lynn; Friedmann, Rafael

2005-01-01T23:59:59.000Z

13

Alternative Fuel for Portland Cement Processing  

SciTech Connect

The production of cement involves a combination of numerous raw materials, strictly monitored system processes, and temperatures on the order of 1500 °C. Immense quantities of fuel are required for the production of cement. Traditionally, energy from fossil fuels was solely relied upon for the production of cement. The overarching project objective is to evaluate the use of alternative fuels to lessen the dependence on non-renewable resources to produce portland cement. The key objective of using alternative fuels is to continue to produce high-quality cement while decreasing the use of non-renewable fuels and minimizing the impact on the environment. Burn characteristics and thermodynamic parameters were evaluated with a laboratory burn simulator under conditions that mimic those in the preheater where the fuels are brought into a cement plant. A drop-tube furnace and visualization method were developed that show potential for evaluating time- and space-resolved temperature distributions for fuel solid particles and liquid droplets undergoing combustion in various combustion atmospheres. Downdraft gasification has been explored as a means to extract chemical energy from poultry litter while limiting the throughput of potentially deleterious components with regards to use in firing a cement kiln. Results have shown that the clinkering is temperature independent, at least within the controllable temperature range. Limestone also had only a slight effect on the fusion when used to coat the pellets. However, limestone addition did display some promise in regards to chlorine capture, as ash analyses showed chlorine concentrations of more than four times greater in the limestone infused ash as compared to raw poultry litter. A reliable and convenient sampling procedure was developed to estimate the combustion quality of broiler litter that is the best compromise between convenience and reliability by means of statistical analysis. Multi-day trial burns were conducted at a full-scale cement plant with alternative fuels to examine their compatibility with the cement production process. Construction and demolition waste, woodchips, and soybean seeds were used as alternative fuels at a full-scale cement production facility. These fuels were co-fired with coal and waste plastics. The alternative fuels used in this trial accounted for 5 to 16 % of the total energy consumed during these burns. The overall performance of the portland cement produced during the various trial burns performed for practical purposes very similar to the cement produced during the control burn. The cement plant was successful in implementing alternative fuels to produce a consistent, high-quality product that increased cement performance while reducing the environmental footprint of the plant. The utilization of construction and demolition waste, woodchips and soybean seeds proved to be viable replacements for traditional fuels. The future use of these fuels depends on local availability, associated costs, and compatibility with a facilityâ??s production process.

Anton K. Schindler; Steve R. Duke; Thomas E. Burch; Edward W. Davis; Ralph H. Zee; David I. Bransby; Carla Hopkins; Rutherford L. Thompson; Jingran Duan; Vignesh Venkatasubramanian; Stephen Giles.

2012-06-30T23:59:59.000Z

14

High temperature lightweight foamed cements  

DOE Patents (OSTI)

Cement slurries are disclosed which are suitable for use in geothermal wells since they can withstand high temperatures and high pressures. The formulation consists of cement, silica flour, water, a retarder, a foaming agent, a foam stabilizer, and a reinforcing agent. A process for producing these cements is also disclosed. 3 figs.

Sugama, Toshifumi.

1989-10-03T23:59:59.000Z

15

High temperature lightweight foamed cements  

DOE Patents (OSTI)

Cement slurries are disclosed which are suitable for use in geothermal wells since they can withstand high temperatures and high pressures. The formulation consists of cement, silica flour, water, a retarder, a foaming agent, a foam stabilizer, and a reinforcing agent. A process for producing these cements is also disclosed.

Sugama, Toshifumi (Mastic Beach, NY)

1989-01-01T23:59:59.000Z

16

Guidebook for Using the Tool BEST Cement: Benchmarking and Energy Savings Tool for the Cement Industry  

E-Print Network (OSTI)

Concepts of Waste Heat Recovery in Cement Plants EnergyConcepts of Waste Heat Recovery in Cement Plants Energyor Photo: Waste heat recovery at cement plant, image taken

Galitsky, Christina

2009-01-01T23:59:59.000Z

17

Cementing horizontal wells  

SciTech Connect

Since the introduction of horizontal drilling, most completions have been open hole. Open-hole or slotted-liner completions may be satisfactory in straight, thick formations, if stimulation is not required. But if the wellbore wanders out of the reservoir, whether due to loss of directional control or spotty knowledge of formation dimensions, casing becomes a necessity. In addition, a wellbore that stays in the formation but comes uncomfortably close to the water-oil contact or gas cap requires casing to prevent coning. Further, if stimulation is anticipated, or may become a necessity, it is essential that the hole be cased and cemented. Otherwise, there is no control of the stimulation treatment. Even if the horizontal wellbore itself does not require casing, intermediate casing in the high-angle hole is needed. This is especially critical in open-hole completions below a gas cap, for example. The keys to effective horizontal cementing are fundamentally the same as for cementing vertical wells: proper centralization of casing in the bore-hole to ensure efficient mud removal and well-designed cement slurries.

Baret, F.; Griffin, T.J.

1989-05-01T23:59:59.000Z

18

Thermal Shock-resistant Cement  

SciTech Connect

We studied the effectiveness of sodium silicate-activated Class F fly ash in improving the thermal shock resistance and in extending the onset of hydration of Secar #80 refractory cement. When the dry mix cement, consisting of Secar #80, Class F fly ash, and sodium silicate, came in contact with water, NaOH derived from the dissolution of sodium silicate preferentially reacted with Class F fly ash, rather than the #80, to dissociate silicate anions from Class F fly ash. Then, these dissociated silicate ions delayed significantly the hydration of #80 possessing a rapid setting behavior. We undertook a multiple heating -water cooling quenching-cycle test to evaluate the cement’s resistance to thermal shock. In one cycle, we heated the 200 and #61616;C-autoclaved cement at 500 and #61616;C for 24 hours, and then the heated cement was rapidly immersed in water at 25 and #61616;C. This cycle was repeated five times. The phase composition of the autoclaved #80/Class F fly ash blend cements comprised four crystalline hydration products, boehmite, katoite, hydrogrossular, and hydroxysodalite, responsible for strengthening cement. After a test of 5-cycle heat-water quenching, we observed three crystalline phase-transformations in this autoclaved cement: boehmite and #61614; and #61543;-Al2O3, katoite and #61614; calcite, and hydroxysodalite and #61614; carbonated sodalite. Among those, the hydroxysodalite and #61614; carbonated sodalite transformation not only played a pivotal role in densifying the cementitious structure and in sustaining the original compressive strength developed after autoclaving, but also offered an improved resistance of the #80 cement to thermal shock. In contrast, autoclaved Class G well cement with and without Class F fly ash and quartz flour failed this cycle test, generating multiple cracks in the cement. The major reason for such impairment was the hydration of lime derived from the dehydroxylation of portlandite formed in the autoclaved cement, causing its volume to expand.

Sugama T.; Pyatina, T.; Gill, S.

2012-02-01T23:59:59.000Z

19

Climate VISION: News and Events - Cement - First Cement Plants...  

Office of Scientific and Technical Information (OSTI)

in the top 25 percent nationally using EPA's ENERGY STAR Cement Plant Energy Performance Indicator (EPI). EPA's national energy performance rating system, developed in...

20

Water-to-Cement Distance Analysis Software  

Science Conference Proceedings (OSTI)

Water-to-Cement Distance Analysis Software. Description/Summary: ... Type of software: Analysis Software of Water-to-Cement Distance Analysis. ...

2013-06-11T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Particle Filtering in Geophysical Systems  

Science Conference Proceedings (OSTI)

The application of particle filters in geophysical systems is reviewed. Some background on Bayesian filtering is provided, and the existing methods are discussed. The emphasis is on the methodology, and not so much on the applications themselves. ...

Peter Jan van Leeuwen

2009-12-01T23:59:59.000Z

22

Available Energy of Geophysical Systems  

Science Conference Proceedings (OSTI)

An alternative derivation of the available energy for a geophysical fluid system is presented. It is shown that determination of the equilibrium temperature of the system by the minimization of an energy availability function is equivalent to that ...

Peter R. Bannon

2013-08-01T23:59:59.000Z

23

Definition: Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Geophysical Techniques Jump to: navigation, search Dictionary.png Geophysical Techniques Geophysics is the study of the structure and composition of the earth's interior.[1] View on Wikipedia Wikipedia Definition Exploration geophysics is the applied branch of geophysics which uses surface methods to measure the physical properties of the subsurface Earth, along with the anomalies in these properties, in order to detect or infer the presence and position of ore minerals, hydrocarbons, geothermal reservoirs, groundwater reservoirs, and other geological structures. Exploration geophysics is the practical application of physical methods (such as seismic, gravitational, magnetic, electrical and electromagnetic)

24

China's Cement Production:  

NLE Websites -- All DOE Office Websites (Extended Search)

Estimation of CO Estimation of CO 2 Emissions from China's Cement Production: Methodologies and Uncertainties Jing Ke, Michael McNeil, Lynn Price, Nina Zheng Khanna, Nan Zhou Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Reprint version of journal article published in "Energy Policy", Volume 57, Pages 172-181, June 2013 January 2013 This work was supported by the China Sustainable Energy Program of the Energy Foundation through the U.S. Department of Energy under Contract No. DE-AC02- 05CH11231. ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY LBNL-6329E Disclaimer This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any

25

Energy Efficiency Improvement Opportunities for the Cement Industry  

E-Print Network (OSTI)

Concepts of Waste Heat Recovery in Cement Plants EnergyM. 1990. Waste Gas Heat Recovery in Cement Plants Energywaste heat recovery for electricity production in cement plants

Worrell, Ernst

2008-01-01T23:59:59.000Z

26

Gujarat Ambuja Cements Limited | Open Energy Information  

Open Energy Info (EERE)

Ambuja Cements Limited Ambuja Cements Limited Jump to: navigation, search Name Gujarat Ambuja Cements Limited Place Mumbai, India Zip 400 021 Sector Biomass Product Indian cement company. the company installed a 24MW biomass based captive electric generating stations that will provide electricity to Gujarat Ambuja Cements Limitedâ€(tm)s (“GACL”) facility in Ropar, Punjab. References Gujarat Ambuja Cements Limited[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Gujarat Ambuja Cements Limited is a company located in Mumbai, India . References ↑ "Gujarat Ambuja Cements Limited" Retrieved from "http://en.openei.org/w/index.php?title=Gujarat_Ambuja_Cements_Limited&oldid=346290

27

Geophysical Institute. Biennial report, 1993-1994  

SciTech Connect

The 1993-1994 Geophysical Institute Biennial Report was published in November 1995 by the Geophysical Institute of the University of Alaska Fairbanks. It contains an overview of the Geophysical Institute, the Director`s Note, and research presentations concerning the following subjects: Scientific Predictions, Space Physics, Atmospheric Sciences, Snow, Ice and Permafrost, Tectonics and Sedimentation, Seismology, Volcanology, Remote Sensing, and other projects.

NONE

1996-01-01T23:59:59.000Z

28

ADVANCED CEMENTS FOR GEOTHERMAL WELLS  

Science Conference Proceedings (OSTI)

Using the conventional well cements consisting of the calcium silicate hydrates (CaO-SiO{sub 2}-H{sub 2}O system) and calcium aluminum silicate hydrates (CaO-Al{sub 2}O{sub 3}-SiO{sub 2}-H{sub 2}O system) for the integrity of geothermal wells, the serious concern confronting the cementing industries was their poor performance in mechanically supporting the metallic well casing pipes and in mitigating the pipe's corrosion in very harsh geothermal reservoirs. These difficulties are particularly acute in two geological regions: One is the deep hot downhole area ({approx} 1700 m depth at temperatures of {approx} 320 C) that contains hyper saline water with high concentrations of CO{sub 2} (> 40,000 ppm) in conjunction with {approx} 100 ppm H{sub 2}S at a mild acid of pH {approx} 5.0; the other is the upper well region between the well's surface and {approx} 1000 m depth at temperatures up to 200 C. The specific environment of the latter region is characterized by highly concentrated H{sub 2}SO{sub 4} (pH strength of cements, lowering the mechanical support of casing pipes, but also increased the extent of permeability of the brine through the cement layer, promoting the rate of the pipe's corrosion. Severely carbonated and acid eroded cements often impaired the integrity of a well in less than one year; in the worst cases, casings have collapsed within three months, leading to the need for costly and time-consuming repairs or redrilling operations. These were the reasons why the geothermal well drilling and cementing industries were concerned about using conventional well cements, and further their deterioration was a major impediment in expediting the development of geothermal energy resources.

SUGAMA,T.

2007-01-01T23:59:59.000Z

29

Energy Efficiency Improvement Opportunities for the Cement Industry  

E-Print Network (OSTI)

Concepts of Waste Heat Recovery in Cement Plants EnergyM. 1990. Waste Gas Heat Recovery in Cement Plants Energy

Worrell, Ernst

2008-01-01T23:59:59.000Z

30

Merging High Resolution Geophysical and Geochemical Surveys to Reduce  

Open Energy Info (EERE)

Merging High Resolution Geophysical and Geochemical Surveys to Reduce Merging High Resolution Geophysical and Geochemical Surveys to Reduce Exploration Risk at Glass Buttes, Oregon Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Merging High Resolution Geophysical and Geochemical Surveys to Reduce Exploration Risk at Glass Buttes, Oregon Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description This program will combine detailed gravity, high resolution aeromagnetic, and LIDAR data, all of which will be combined for structural modeling, with hyperspectral data, which will identify and map specific minerals and mineral assemblages that may point to upflow zones. The collection of these surveys and analyses of the merged data and model will be used to site deeper slim holes. Slim holes will be flow tested to determine whether or not Ormat can move forward with developing this resource. An innovative combination of geophysical and geochemical tools will significantly reduce risk in exploring this area, and the results will help to evaluate the value of these tools independently and in combination when exploring for blind resources where structure, permeability, and temperature are the most pressing questions. The slim holes will allow testing of models and validation of methods, and the surveys within the wellbores will be used to revise the models and site production wells if their drilling is warranted.

31

Experimental study of potential wellbore cement carbonation by various phases of carbon dioxide during geologic carbon sequestration  

SciTech Connect

Hydrated Portland cement was reacted with carbon dioxide (CO2) in supercritical, gaseous, and aqueous phases to understand the potential cement alteration processes along the length of a wellbore, extending from deep CO2 storage reservoir to the shallow subsurface during geologic carbon sequestration. The 3-D X-ray microtomography (XMT) images displayed that the cement alteration was significantly more extensive by CO2-saturated synthetic groundwater than dry or wet supercritical CO2 at high P (10 MPa)-T (50°C) conditions. Scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) analysis also exhibited a systematic Ca depletion and C enrichment in cement matrix exposed to CO2-saturated groundwater. Integrated XMT, XRD, and SEM-EDS analyses identified the formation of extensive carbonated zone filled with CaCO3(s), as well as the porous degradation front and the outermost silica-rich zone in cement after exposure to CO2-saturated groundwater. The cement alteration by CO2-saturated groundwater for 2-8 months overall decreased the porosity from 31% to 22% and the permeability by an order of magnitude. Cement alteration by dry or wet supercritical CO2 was slow and minor compared to CO2-saturated groundwater. A thin single carbonation zone was formed in cement after exposure to wet supercritical CO2 for 8 months or dry supercritical CO2 for 15 months. Extensive calcite coating was formed on the outside surface of a cement sample after exposure to wet gaseous CO2 for 1-3 months. The chemical-physical characterization of hydrated Portland cement after exposure to various phases of carbon dioxide indicates that the extent of cement carbonation can be significantly heterogeneous depending on CO2 phase present in the wellbore environment. Both experimental and geochemical modeling results suggest that wellbore cement exposure to supercritical, gaseous, and aqueous phases of CO2 during geologic carbon sequestration is unlikely to damage the wellbore integrity because cement alteration by all phases of CO2 is dominated by carbonation reaction. This is consistent with previous field studies of wellbore cement with extensive carbonation after exposure to CO2 for 3 decades. However, XMT imaging indicates that preferential cement alteration by supercritical CO2 or CO2-saturated groundwater can occur along the cement-steel or cement-rock interfaces. This highlights the importance of further investigation of cement degradation along the interfaces of wellbore materials to ensure permanent geologic carbon storage.

Jung, Hun Bok; Um, Wooyong

2013-08-16T23:59:59.000Z

32

ADVANCED CEMENTS FOR GEOTHERMAL WELLS  

DOE Green Energy (OSTI)

Using the conventional well cements consisting of the calcium silicate hydrates (CaO-SiO{sub 2}-H{sub 2}O system) and calcium aluminum silicate hydrates (CaO-Al{sub 2}O{sub 3}-SiO{sub 2}-H{sub 2}O system) for the integrity of geothermal wells, the serious concern confronting the cementing industries was their poor performance in mechanically supporting the metallic well casing pipes and in mitigating the pipe's corrosion in very harsh geothermal reservoirs. These difficulties are particularly acute in two geological regions: One is the deep hot downhole area ({approx} 1700 m depth at temperatures of {approx} 320 C) that contains hyper saline water with high concentrations of CO{sub 2} (> 40,000 ppm) in conjunction with {approx} 100 ppm H{sub 2}S at a mild acid of pH {approx} 5.0; the other is the upper well region between the well's surface and {approx} 1000 m depth at temperatures up to 200 C. The specific environment of the latter region is characterized by highly concentrated H{sub 2}SO{sub 4} (pH < 1.5) brine containing at least 5000 ppm CO{sub 2}. When these conventional cements are emplaced in these harsh environments, their major shortcoming is their susceptibility to reactions with hot CO{sub 2} and H{sub 2}SO4, thereby causing their deterioration brought about by CO{sub 2}-catalyzed carbonation and acid-initiated erosion. Such degradation not only reduced rapidly the strength of cements, lowering the mechanical support of casing pipes, but also increased the extent of permeability of the brine through the cement layer, promoting the rate of the pipe's corrosion. Severely carbonated and acid eroded cements often impaired the integrity of a well in less than one year; in the worst cases, casings have collapsed within three months, leading to the need for costly and time-consuming repairs or redrilling operations. These were the reasons why the geothermal well drilling and cementing industries were concerned about using conventional well cements, and further their deterioration was a major impediment in expediting the development of geothermal energy resources.

SUGAMA,T.

2007-01-01T23:59:59.000Z

33

Process for cementing geothermal wells  

DOE Patents (OSTI)

A pumpable slurry of coal-filled furfuryl alcohol, furfural, and/or a low molecular weight mono- or copolymer thereof containing, preferably, a catalytic amount of a soluble acid catalyst is used to cement a casing in a geothermal well.

Eilers, Louis H. (Inola, OK)

1985-01-01T23:59:59.000Z

34

Environmental and Engineering Geophysical University at SAGEEP 2008: Geophysical Instruction for Non-Geophysicists  

SciTech Connect

The Environmental and Engineering Geophysical Society (EEGS), a nonprofit professional organization, conducted an educational series of seminars at the Symposium on the Application of Geophysics to Engineering and Environmental Problems (SAGEEP) in Philadelphia in April 2008. The purpose of these seminars, conducted under the name Environmental and Engineering Geophysical University (EEGU) over three days in parallel with the regular SAGEEP technical sessions, was to introduce nontraditional geophysical conference attendees to the appropriate use of geophysics in environmental and engineering projects. Five half-day, classroom-style sessions were led by recognized experts in the application of seismic, electrical, gravity, magnetics, and ground-penetrating radar methods. Classroom sessions were intended to educate regulators, environmental program managers, consultants, and students who are new to near-surface geophysics or are interested in learning how to incorporate appropriate geophysical approaches into characterization or remediation programs or evaluate the suitability of geophysical methods for general classes of environmental or engineering problems.

Jeffrey G. Paine

2009-03-13T23:59:59.000Z

35

Opportunities for Energy Efficiency and Demand Response in the California Cement Industry  

E-Print Network (OSTI)

Applications in the Cement Industry. ” Mineral Engineering Cement  Production,” Cement Industry Technical Conference, gearless mill drive,” Cement Industry Technical Conference, 

Olsen, Daniel

2012-01-01T23:59:59.000Z

36

LANL Institutes - Institute of Geophysics and Planetary Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Geophysics Geophysics Focus Leader: Scott Baldridge sbaldridge@lanl.gov This focus supports a breadth of basic research concerning planetary surfaces and interiors, including numerical, experimental, and field studies of the structure, properties, processes, and dynamics of terrestrial and giant planets. It is strongly recommended that proposals exploit unique LANL resources (e.g., LANL high-performance computing resources; the Los Alamos Neutron Science Center (LANSCE); geochemical analyses facilities resident in EES and C divisions; and/or sensor technology capabilities resident in C, EES, ISR, and N divisions). We are particularly interested in innovative research projects in areas of current, strong international scientific interest such as the following: New techniques in passive (imaging) or active (e.g., lidar, radar)

37

Borehole Geophysical Methods | Open Energy Information  

Open Energy Info (EERE)

Not Provided DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Borehole Geophysical Methods Citation Carole D. Johnson. Borehole...

38

Borehole Geophysical Logging | Open Energy Information  

Open Energy Info (EERE)

2013 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Borehole Geophysical Logging Citation Hager-Richter Geoscience, Inc.....

39

IGPP: Institute for Geophysics and Planetary Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

IGPP Home IGPP Astrophysics IGPP Planetary Sciences IGPP Mini Grant Seminars Phone Book LLNL Home FY09 IGPP Mini Grant The Institute of Geophysics and Planetary Physics (IGPP)...

40

Geophysical Exploration (Montana) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Geophysical Exploration (Montana) Geophysical Exploration (Montana) Geophysical Exploration (Montana) < Back Eligibility Utility Fed. Government Commercial Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Installer/Contractor Rural Electric Cooperative Tribal Government Retail Supplier Institutional Fuel Distributor Savings Category Buying & Making Electricity Program Info State Montana Program Type Siting and Permitting Provider Montana Department of Natural Resources and Conservation An exploration permit is required for any entity conducting geophysical exploration within the state of Montana. Such entities are also required to follow rules adopted by the Board of Oil and Gas Conservation, including those pertaining to: (a) Adequate identification of seismic exploration crews operating in this

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

High Precision Geophysics & Detailed Structural Exploration ...  

Open Energy Info (EERE)

icon High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling Geothermal Project Jump to: navigation, search Last modified on July 22, 2011....

42

Identification of active agents for tetrachloroethylene degradation in Portland cement slurry containing ferrous iron  

E-Print Network (OSTI)

Fe(II)-based degradative solidification/stabilization (Fe(II)-DS/S) technology is the modification of conventional solidification/stabilization (S/S). Inorganic pollutants are immobilized by Fe(II)-DS/S while organic pollutants are destroyed. Experimental studies were conducted to identify the active agents for Tetrachloroethylene (PCE) degradation as well as the conditions that enhance the formation of the active agents in the Fe(II)-DS/S system. PCE was chosen as a model chlorinated aliphatic hydrocarbon in this study. First, the conditions that lead to maximizing production of the active agents were identified by measuring the ability of various chemical mixtures to degrade PCE. Results showed that Fe(II), Fe(III), Ca, and Cl were the the important elements that affect degradation activity. Elemental compositions of the mixtures and the conditions affecting solid formation might be the important factors in determining how active solids are formed. Second, instrumental analyses (XRD, SEM, SEM-EDS) were used to identify minerals in chemical mixtures that have high activities. Results indicate that active agents for PCE degradation in Portland cement slurries and in cement extracts might be one of several AFm phases. However, systems without cement did not form the same solids as those with cement or cement extract. Ferrous hydroxide was identified as a major solid phase formed in systems without cement. Finally, the effect of using different types of ordinary Portland cement (OPC) on PCE degradation rate during Fe(II)-DS/S was examined and the solids were examined by instrumental analyses (XRD, SEM, SEM-EDS). Four different OPC (Txi, Lehigh, Quikrete, and Capitol) showed different PCE degradation behaviors. Pseudo first-order kinetics was observed for Capitol and Txi OPC and second-order kinetics was observed for Quikrete. In the case of Lehigh cement, pseudo first-order kinetics was observed in cement slurry and second-order kinetics in cement extract. Calcium aluminum hydroxide hydrates dominated solids made with Txi, Quikrete, and Lehigh cements and FriedelÂ?s salt was the major phase found in solids made with Capitol cements. Fe tended to be associated with hexagonal thin plate particles, which were supposed to be a LDH.

Ko, Sae Bom

2003-05-01T23:59:59.000Z

43

Role of borehole geophysics in defining the physical characteristics of the  

Open Energy Info (EERE)

Role of borehole geophysics in defining the physical characteristics of the Role of borehole geophysics in defining the physical characteristics of the Raft River geothermal reservoir, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Role of borehole geophysics in defining the physical characteristics of the Raft River geothermal reservoir, Idaho Details Activities (4) Areas (1) Regions (0) Abstract: Numerous geophysical logs have been made in three deep wells and in several intermediate depth core holes in the Raft River geothermal reservoir, Idaho. Laboratory analyses of cores from the intermediate depth holes were used to provide a qualitative and quantitative basis for a detailed interpretation of logs from the shallow part of the reservoir. A less detailed interpretation of logs from the deeper part of the reservoir

44

Cementing temperatures for deep-well production liners  

SciTech Connect

Temperature of cement is an important factor in properly cementing deep well production liners, yet current methods of determining cement temperatures do not account for all variables. In this paper a computer model predicts temperatures of cement while pumping and while waiting on cement, compares computed and measured temperatures, defines the importance of certain cementing variables on temperatures, and provides an explanation of difficulties encountered while cementing liner tops.

Wooley, G.R.; Galate, J.W.; Giussani, A.P.

1984-09-01T23:59:59.000Z

45

Application of thermal energy storage in the cement industry. Final report, September 1977--March 1978  

DOE Green Energy (OSTI)

In the manufacture of cement, literally trillions of Btu's are rejected to the environment each year. The purpose of this feasibility study program was to determine whether thermal energy storage could be used to conserve or allow alternative uses of this rejected energy. This study identifies and quantifies the sources of rejected energy in the cement manufacturing process, establishes use of this energy, investigates various storage system concepts, and selects energy conservation systems for further study. Thermal performance and economic analyses are performed on candidate storage systems for four typical cement plants representing various methods of manufacturing cement. Through the use of thermal energy storage in conjunction with waste heat electric power generation units, an estimated 2.4 x 10/sup 13/ Btu/year, or an equivalent of 4.0 x 10/sup 6/ barrels of oil per year, can be conserved. Attractive rates of return on investment of the proposed systems are an incentive for further development.

Jaegr, F.A.; Beshore, D.G.; Miller, F.M.; Gartner, E.M.

1978-10-01T23:59:59.000Z

46

Potential Energy Savings and CO2 Emissions Reduction of China's Cement  

NLE Websites -- All DOE Office Websites (Extended Search)

Potential Energy Savings and CO2 Emissions Reduction of China's Cement Potential Energy Savings and CO2 Emissions Reduction of China's Cement Industry Title Potential Energy Savings and CO2 Emissions Reduction of China's Cement Industry Publication Type Report Year of Publication 2012 Authors Ke, Jing, Nina Zheng, David Fridley, Lynn K. Price, and Nan Zhou Date Published 06/2012 Publisher Lawrence Berkeley National Laboratory Keywords cement industry, china energy, china energy group, emission reduction, energy analysis and environmental impacts department, energy efficiency, industrial energy efficiency, Low Emission & Efficient Industry, policy studies Abstract This study analyzes current energy and carbon dioxide (CO2) emission trends in China's cement industryas the basis for modeling different levels of cement production and rates of efficiency improvement andcarbon reduction in 2011-2030. Three cement output projections are developed based on analyses ofhistorical production and physical and macroeconomic drivers. For each of these three productionprojections, energy savings and CO2 emission reduction potentials are estimated in a best practicescenario and two continuous improvement scenarios relative to a frozen scenario. The results reveal thepotential for cumulative final energy savings of 27.1 to 37.5 exajoules and energy-related directemission reductions of 3.2 to 4.4 gigatonnes in 2011-2030 under the best practice scenarios. Thecontinuous improvement scenarios produce cumulative final energy savings of 6.0 to 18.9 exajoules andreduce CO2 emissions by 1.0 to 2.4 gigatonnes. This analysis highlights that increasing energy efficiencyis the most important policy measure for reducing the cement industry's energy and emissions intensity,given the current state of the industry and the unlikelihood of significant carbon capture and storagebefore 2030. In addition, policies to reduce total cement production offer the most direct way ofreducing total energy consumption and CO2 emissions.

47

SURFACE GEOPHYSICAL EXPLORATION - COMPENDIUM DOCUMENT  

SciTech Connect

This report documents the evolution of the surface geophysical exploration (SGE) program and highlights some of the most recent successes in imaging conductive targets related to past leaks within and around Hanford's tank farms. While it is noted that the SGE program consists of multiple geophysical techniques designed to (1) locate near surface infrastructure that may interfere with (2) subsurface plume mapping, the report will focus primarily on electrical resistivity acquisition and processing for plume mapping. Due to the interferences from the near surface piping network, tanks, fences, wells, etc., the results of the three-dimensional (3D) reconstruction of electrical resistivity was more representative of metal than the high ionic strength plumes. Since the first deployment, the focus of the SGE program has been to acquire and model the best electrical resistivity data that minimizes the influence of buried metal objects. Toward that goal, two significant advances have occurred: (1) using the infrastructure directly in the acquisition campaign and (2) placement of electrodes beneath the infrastructure. The direct use of infrastructure was successfully demonstrated at T farm by using wells as long electrodes (Rucker et al., 2010, 'Electrical-Resistivity Characterization of an Industrial Site Using Long Electrodes'). While the method was capable of finding targets related to past releases, a loss of vertical resolution was the trade-off. The burying of electrodes below the infrastructure helped to increase the vertical resolution, as long as a sufficient number of electrodes are available for the acquisition campaign.

RUCKER DF; MYERS DA

2011-10-04T23:59:59.000Z

48

Geophysical characterization of subsurface barriers  

SciTech Connect

An option for controlling contaminant migration from plumes and buried waste sites is to construct a subsurface barrier of a low-permeability material. The successful application of subsurface barriers requires processes to verify the emplacement and effectiveness of barrier and to monitor the performance of a barrier after emplacement. Non destructive and remote sensing techniques, such as geophysical methods, are possible technologies to address these needs. The changes in mechanical, hydrologic and chemical properties associated with the emplacement of an engineered barrier will affect geophysical properties such a seismic velocity, electrical conductivity, and dielectric constant. Also, the barrier, once emplaced and interacting with the in situ geologic system, may affect the paths along which electrical current flows in the subsurface. These changes in properties and processes facilitate the detection and monitoring of the barrier. The approaches to characterizing and monitoring engineered barriers can be divided between (1) methods that directly image the barrier using the contrasts in physical properties between the barrier and the host soil or rock and (2) methods that reflect flow processes around or through the barrier. For example, seismic methods that delineate the changes in density and stiffness associated with the barrier represents a direct imaging method. Electrical self potential methods and flow probes based on heat flow methods represent techniques that can delineate the flow path or flow processes around and through a barrier.

Borns, D.J.

1995-08-01T23:59:59.000Z

49

Category:Geophysical Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Geophysical Techniques page? For detailed information on Geophysical Techniques as exploration techniques, click here. Category:Geophysical Techniques Add.png Add a new Geophysical Techniques Technique Subcategories This category has the following 4 subcategories, out of 4 total. E [+] Electrical Techniques‎ (2 categories) 5 pages G [×] Gravity Techniques‎ 3 pages M [×] Magnetic Techniques‎ 3 pages S [+] Seismic Techniques‎ (2 categories) 2 pages Pages in category "Geophysical Techniques" The following 5 pages are in this category, out of 5 total. D DC Resistivity Survey (Mise-Á-La-Masse) E Electrical Techniques G Gravity Techniques M Magnetic Techniques

50

Pack Cementation Aluminizing of Steels  

Science Conference Proceedings (OSTI)

Table 3   Partial list of commercial applications of pack cementation aluminizing...Carbon and stainless steels Steam power and cogeneration Waterwall tubes 2 % Cr-1% Mo steel Fluidized bed combustor tubes 2 % Cr-1% Mo steel Waste heat boiler tubes Carbon steel Economizer and air preheater tubes 2 % Cr-1% Mo steel Superheater tubes 2 % Cr-1% Mo steel Aerospace (a) Turbine blades...

51

Crustal Geophysics and Geochemistry Science Center | Open Energy...  

Open Energy Info (EERE)

Crustal Geophysics and Geochemistry Science Center Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Crustal Geophysics and Geochemistry Science Center...

52

Definition: Cement Bond Log | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Cement Bond Log Jump to: navigation, search Dictionary.png Cement Bond Log A representation of the integrity of the cement job, especially whether the cement is adhering solidly to the outside of the casing. The log is typically obtained from one of a variety of sonic-type tools. The newer versions, called cement evaluation logs, along with their processing software, can give detailed, 360-degree representations of the integrity of the cement job, whereas older versions may display a single line representing the integrated integrity around the casing.[1] Related Terms Acoustic Logs References ↑ Schlumberger Oilfield Glossary Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like.

53

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

SciTech Connect

Low cost material is needed for grouting abandoned retorts. Experimental work has shown that a hydraulic cement can be produced from Lurgi spent shale by mixing it in a 1:1 weight ratio with limestone and heating one hour at 1000°C. With 5% added gypsum, strengths up to 25.8 MPa are obtained. This cement could make an economical addition up to about 10% to spent shale grout mixes, or be used in ordinary cement applications.

Mehta, P.K.; Persoff, P.; Fox, J.P.

1980-06-01T23:59:59.000Z

54

Climate VISION: Private Sector Initiatives: Cement - Results  

Office of Scientific and Technical Information (OSTI)

State Programs Technical Information Plant Assessments Training Calendar Software Tools Energy Management Results Technology Pathways Cement - Results No measured results exist...

55

Case Study of the California Cement Industry  

E-Print Network (OSTI)

of the availability of energy audits. Barriers to Energywith an energy manager program, these audits could helpenergy-efficiency projects particular to the cement industry, audits

Coito, Fred; Powell, Frank; Worrell, Ernst; Price, Lynn; Friedmann, Rafael

2005-01-01T23:59:59.000Z

56

Scanning electron microscopy imaging of hydraulic cement ...  

Science Conference Proceedings (OSTI)

... Cement clinker is manufactured from a finely-ground, homogenized blend of limestone, shale and iron ore sintered in a rotary kiln to temperatures ...

2004-11-23T23:59:59.000Z

57

INVESTIGATIONS ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE  

E-Print Network (OSTI)

CEMENTS FROM SPENT OIL SHALE P.K. Mehta and P. Persoff AprilCement Manufacture from Oil Shale, U.S. Patent 2,904,445,CEMENTS FROM SPENT OIL SHALE P, K, Mehta Civil Engineering

Mehta, P.K.

2012-01-01T23:59:59.000Z

58

Development of High-Volume Fly Ash Blended Cements  

Science Conference Proceedings (OSTI)

High-volume fly ash (HVFA) blended cement can be produced either by intergrinding fly ash with portland cement clinker or by blending dry fly ash with portland cement. Production of HVFA cement using the intergrinding method may be the most cost-effective and practical of the two approaches. This report documents the results of commercial-scale production of HVFA blended cements using up to 55 percent fly ash to replace the portland cement.

2001-10-11T23:59:59.000Z

59

Geophysics II. Tools for seismic interpretation  

SciTech Connect

During the past two decades, the technology of geophysics has exploded. At the same time, the petroleum industry has been forced to look for more and more subtle traps in more and more difficult terrain. The choice of papers in this geophysics reprint volume reflects this evolution. The papers were chosen to help geologists, not geophysicists, enhance their knowledge of geophysics. Math-intensive papers were excluded because those papers are relatively esoteric and have limited applicability for most geologists. This volume concentrates on tools for seismic data interpretation. Each of the 25 papers were abstracted and indexed for the U.S. Department of Energy's Energy Data Base.

Beaumont, E.A.; Foster, N.H. (comps.)

1989-01-01T23:59:59.000Z

60

Geophysics IV. Gravity, Magnetic, and Magnetotelluric Methods  

SciTech Connect

During the past two decades, the technology of geophysics has exploded. At the same time, the petroleum industry has been forced to look for more and more subtle traps in more and more difficult terrain. The choice of papers in this geophysics reprint volume reflects this evolution. The papers were chosen to help geologists, not geophysicists, enhance their knowledge of geophysics. Math-intensive papers were excluded because those papers are relatively esoteric and have limited applicability for most geologists. This volume concentrates on gravity, magnetic, and magnetotelluric methods. Each of the 10 papers were abstracted and indexed for the U.S. Department of Energy's Energy Data Base.

Beaumont, E.A.; Foster, N.H. (comps.)

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Geophysics III. Geologic interpretation of seismic data  

SciTech Connect

During the past two decades, the technology of geophysics has exploded. At the same time, the petroleum industry has been forced to look for more and more subtle traps in more and more difficult terrain. The choice of papers in this geophysics reprint volume reflects this evolution. The papers were chosen to help geologists, not geophysicists, enhance their knowledge of geophysics. Math-intensive papers were excluded because those papers are relatively esoteric and have limited applicability for most geologists. This volume concentrates on geologic interpretation of seismic data interpretation. Each of the 21 papers were abstracted and indexed for the U.S. Department of Energy's Energy Data Base.

Beaumont, E.A.; Foster, N.H. (comps.)

1989-01-01T23:59:59.000Z

62

Analysis of Energy-Efficiency Opportunities for the Cement Industry...  

NLE Websites -- All DOE Office Websites (Extended Search)

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China Title Analysis of Energy-Efficiency Opportunities for the Cement Industry in...

63

A Comparison Study of Portland Cement Hydration Kinetics as ...  

Science Conference Proceedings (OSTI)

... especially around the main hydration peaks. ... at the main hydration peak) seems to create a ... Oil Well Cement, Cement and Concrete Research 40 ...

2013-05-22T23:59:59.000Z

64

Estimation of CO2 Emissions from China's Cement Production: Methodolog...  

NLE Websites -- All DOE Office Websites (Extended Search)

the need to understand the uncertainty of current estimates of cement emissions in China. This paper compares several methodologies for calculating CO2 emissions from cement...

65

FLSmidth Inc. and Titan Florida Cement Teaming Profile | ENERGY...  

NLE Websites -- All DOE Office Websites (Extended Search)

Inc. and Titan Florida Cement Teaming Profile cover page of document FLSmidth reduces energy at processing facilities saving Titan Florida Cement 55,000 annually. FLSmidth...

66

Institute of Geophysics, Planetary Physics, and Signatures  

NLE Websites -- All DOE Office Websites (Extended Search)

Opportunities » Opportunities » Institute of Geophysics, Planetary Physics, and Signatures Institute of Geophysics, Planetary Physics, and Signatures Promoting and supporting high-quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. Contact Director Harald Dogliani (505) 663-5309 Email Deputy and Signatures Jon Schoonover (505) 665-0772 Email Professional Staff Assistant Georgia Sanchez (505) 663-5291 Email Astophysics and Cosmology Ed Fenimore (505) 667-7371 Email Climate Manvendra K. Dubey (505) 665-3128 Email Geophysics Scott Baldridge (505) 667-4338 Email Space Physics Josef Koller (505) 665-7395 Email Expanding the frontiers of astrophysical, space, earth, and climate sciences and their signatures The Institute of Geophysics, Planetary Physics, and Signatures at Los

67

Mercury Geochemical, Groundwater Geochemical, And Radiometric Geophysical  

Open Energy Info (EERE)

Geochemical, Groundwater Geochemical, And Radiometric Geophysical Geochemical, Groundwater Geochemical, And Radiometric Geophysical Signatures At Three Geothermal Prospects In Northern Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Mercury Geochemical, Groundwater Geochemical, And Radiometric Geophysical Signatures At Three Geothermal Prospects In Northern Nevada Details Activities (14) Areas (3) Regions (0) Abstract: Ground water sampling, desorbed mercury soil geochemical surveys and a radiometric geophysical survey was conducted in conjunction with geological mapping at three geothermal prospects in northern Nevada. Orientation sample lines from 610 m (2000 ft.) to 4575 m (15,000 ft.) in length were surveyed at right angles to known and suspected faults. Scintillometer readings (gamma radiation - total counts / second) were also

68

LANL | Solid Earth Geophysics | EES-17  

NLE Websites -- All DOE Office Websites (Extended Search)

LANL : Earth & Environmental Sciences : Solid Earth Geophysics (EES-17) LANL : Earth & Environmental Sciences : Solid Earth Geophysics (EES-17) Home Publications Collaboration & Links Staff Research Highlights Ground-Based Nuclear Explosion Monitoring Geodynamics & National Security Nonlinear Elasticity Time Reversal Los Alamos Seismic Network Stimulated Porous Fluid Flow Resource Recovery Seismic & Acoustic Imaging Exploration Geophysics Induced Seismicity Volcanoes & Earthquakes Other Research CONTACTS Group Leader Ken Rehfeldt Administrative Contacts Jody Benson Cecilia Gonzales Geophysics (EES-17) The Geophysics Group supports the national security mission of Los Alamos National Laboratory by providing technical expertise to monitor movement of Earth's crust while predicting the effects of these events on the environment. Though our focus is on seismic monitoring, we also apply electric, magnetic, radionuclide, and acoustic technologies to monitor underground explosions, maintain our ability to conduct tests, and develop the Yucca Mountain Project. In addition, we study the nonlinear properties of earth materials, imaging with seismic waves, how seismic waves affect the interaction of porous rocks and fluids, use of seismic waves to characterize underground oil reservoirs, volcanology and volcanic seismicity, advanced computational physics of earth materials, and using drilling technology to study the crust of the earth. These tasks are complemented by our extensive background in both conventional and hot dry rock geothermal energy development and geophysical support of the Nevada Test Site.

69

A Comparison of Southern Hemisphere Circulation Statistics Based on GFDL and Australian Analyses  

Science Conference Proceedings (OSTI)

Two sets of observed atmospheric circulation statistics for the Southern Hemisphere (SH) are compared. The first set was compiled at the Geophysical Fluid Dynamics laboratory (GFDL) and consists of global objective analyses of circulation ...

David J. Karoly; Abraham H. Oort

1987-09-01T23:59:59.000Z

70

Geophysical LaboratoryGeophysical Laboratory Carnegie Institution of WashingtonCarnegie Institution of Washington  

E-Print Network (OSTI)

of Washington Washington, DCWashington, DC Russell J. HemleyRussell J. Hemley Percy W. BridgmanPercy W. BridgmanGeophysical LaboratoryGeophysical Laboratory Carnegie Institution of WashingtonCarnegie Institution STATE VIBRATIONAL STATE ELECTRONIC STATE (K-edge, Band Gap) OPTICAL X-RAY · Diamond window opaque above

Hemley, Russell J.

71

Climate VISION: Private Sector Initiatives: Cement: Resources and Links -  

Office of Scientific and Technical Information (OSTI)

Industry Associations Industry Associations Portland Cement Association Since its founding in 1916, the Portland Cement Association has had the same mission: "Improve and expand the uses of portland cement and concrete." The Cement Sustainability Initiative Coordinated by the World Business Council for Sustainable Development, the Cement Sustainability Initiative (CSI) helps the cement industry address the challenges of sustainable development. The business leaders of a group of major cement companies lead the initiative. The GHG Protocol Initiative Coordinated in 1998 by the World Business Council for Sustainable Development and the World Resources Institute, the Greenhouse Gas Protocol Initiative (GHG Protocol) develops internationally-accepted accounting and reporting standards for greenhouse gas emissions from companies

72

Phosphate-bonded calcium aluminate cements  

DOE Patents (OSTI)

A method is described for making a rapid-setting phosphate-bonded cementitious material. A powdered aluminous cement is mixed with an aqueous solution of ammonium phosphate. The mixture is allowed to set to form an amorphous cementitious material which also may be hydrothermally treated at a temperature of from about 120 C to about 300 C to form a crystal-containing phosphate-bonded material. Also described are the cementitious products of this method and the cement composition which includes aluminous cement and ammonium polyphosphate. 10 figures.

Sugama, T.

1993-09-21T23:59:59.000Z

73

Cementation and solidification of miscellaneous mixed wastes at the Rocky Flats Environmental Technology Site  

Science Conference Proceedings (OSTI)

The Rocky Flats Environmental Technology Site produces a variety of wastes which are amenable to micro-encapsulation in cement Portland cement is an inexpensive and readily available material for this application. The Waste Projects (WP) group at Rocky Flats evaluated cementation to determine its effectiveness in encapsulating several wastes. These included waste analytical laboratory solutions, incinerator ash, hydroxide precipitation sludge, and an acidic solution from the Delphi process (a chemical oxidation technology being evaluated as an alternative to incineration). WP prepared surrogate wastes and conducted designed experiments to optimize the cement formulation for the waste streams. These experiments used a Taguchi or factorial experimental design, interactions between the variables were also considered in the testing. Surrogate waste samples were spiked with various levels of each of six Resource Conservation and Recovery Act (RCRA) listed metals (Cd, Cr, Ba, Pb, Ni, and Ag), cemented using the optimized formulation, and analyzed for leach resistance using the Toxicity Characteristic Leaching Procedure (TCLP). The metal spike levels chosen were based on characterization data, and also based on an estimate of the highest levels of contaminants suspected in the waste. This paper includes laboratory test results for each waste studied. These include qualitative observations as well as quantitative data from TCLP analyses and environmental cycling studies. The results from these experiments show that cement stabilization of the different wastes can produce final waste forms which meet the current RCRA Land Disposal Restriction (LDR) requirements. Formulations that resulted in LDR compliant waste forms are provided. The volume increases associated with cementation are also lower than anticipated. Future work will include verification studies with actual mixed radioactive waste as well as additional formulation development studies on other waste streams.

Phillips, J.A.; Semones, G.B.

1995-02-01T23:59:59.000Z

74

Cement report - CEC format 110611  

NLE Websites -- All DOE Office Websites (Extended Search)

9E 9E Opportunities for Energy Efficiency and Demand Response in the California Cement Industry Daniel Olsen, Sasank Goli, David Faulkner, Aimee McKane Environmental Energy Technologies Division December 2010 Disclaimer This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or

75

Guidebook for Using the Tool BEST Cement: Benchmarking and Energy Savings Tool for the Cement Industry  

E-Print Network (OSTI)

and MAIN. 1993. Energy Technology in the Cement IndustrialNo. 16000393, September 9. Energy Technology Support Unit (of China (ITIBMIC). Energy Technology Support Unit (ETSU).

Galitsky, Christina

2009-01-01T23:59:59.000Z

76

Geophysical Exploration Technologies | Open Energy Information  

Open Energy Info (EERE)

Geophysical Exploration Technologies Geophysical Exploration Technologies Jump to: navigation, search Geothermal ARRA Funded Projects for Geophysical Exploration Technologies Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":false,"width":"600px","height":"350px","centre":false,"layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"

77

Climate VISION: Private Sector Initiatives: Cement  

Office of Scientific and Technical Information (OSTI)

Letters of Intent/Agreements Letters of Intent/Agreements Portland Cement Association Logo The Portland Cement Association has committed to a 10% reduction in carbon dioxide (CO2) emissions per ton of cementitious product produced or sold from a 1990 baseline by 2020. The industry will achieve this goal and foster further reductions by end users of their product through the implementation of a 3-part program that focuses on the production process, the product cement manufacturers produce, and application of the product. Reductions from the first two elements of this plan will contribute to achieving the 10% reduction goal. While reductions from the product application element will not count towards the goal, the CO2-reduction benefits of cement and concrete use could be even more significant than those achieved through manufacturing

78

Proper centralizers can improve horizontal well cementing  

SciTech Connect

The selection and spacing of appropriate centralizers can improve the cementation of high-angle and horizontal wells. Mud removal is one of the most important factors in obtaining a good cement job. Effective centralization assists in mud removal and helps ensure an even cement coat around the casing. Centralizers for horizontal wells have to fulfill two requirements: They should have a high restoring capability and a low moving force, and they should allow pipe rotation and reciprocation. Conventional bow-type centralizers have been used successfully in some horizontal wells. But as the horizontal section length increases, special centralizers, such as low-moving-force, bow-type centralizers and rigid centralizers, may be necessary. The paper describes the following: cementing liners, centralization, torque and drag, centralizer placement, the bow-type centralizer, the rigid centralizer, and the downhole activated centralizer.

Kinzel, H. (Weatherford Oil Tool, Langenhagen (Germany))

1993-09-20T23:59:59.000Z

79

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

E-Print Network (OSTI)

hydraulic cement from spent oil shale," Vol. 10, No. 4, p.J. W. , "Colorado's primary oil shale resource for verticalJ. B. , "Simulated effects of oil-shale development on the

Mehta, P.K.

2013-01-01T23:59:59.000Z

80

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

E-Print Network (OSTI)

hydraulic cement from spent oil shale," Vol. 10, No. 4, p.J. W. , "Colorado's primary oil shale resource for verticalSimulated effects of oil-shale development on the hydrology

Mehta, P.K.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

HYDRAULIC CEMENT PREPARATION FROM LURGI SPENT SHALE  

E-Print Network (OSTI)

cement from spent oil shale," Vol. 10, No. 4, p. 54S,Colorado's primary oil shale resource for vertical modifiedSimulated effects of oil-shale development on the hydrology

Mehta, P.K.

2013-01-01T23:59:59.000Z

82

Case Study of the California Cement Industry  

E-Print Network (OSTI)

in the U.S. ; and ( 3) an Energy Guide (prepared by LBNL),for Cement Making: An ENERGY STAR Guide for Energy and Plantenergy-efficiency measures in the Focus industry. The Guide

Coito, Fred; Powell, Frank; Worrell, Ernst; Price, Lynn; Friedmann, Rafael

2005-01-01T23:59:59.000Z

83

Supply chain management in the cement industry  

E-Print Network (OSTI)

Traditionally supply chain management has played an operational role within cement and mineral extraction commodity companies. Recently, cost reduction projects have brought supply chain management into the limelight. In ...

Agudelo, Isabel

2009-01-01T23:59:59.000Z

84

A nanochemomechanical investigation of carbonated cement paste  

E-Print Network (OSTI)

Concrete, and in particular its principal component, cement paste, has an interesting relation with carbon dioxide. Concrete is a carbon dioxide generator-- it is estimated that 5-10% of atmospheric CO? comes from this ...

Vanzo, James (James F.)

2009-01-01T23:59:59.000Z

85

Case Study of the California Cement Industry  

SciTech Connect

California is the largest cement producing state in theU.S., accounting for between 10 percent and 15 percent of U.S. cementproduction and cement industry employment. The cement industry inCalifornia consists of 31 sites that consume large amounts of energy,annually: 1,600 GWh of electricity, 22 million therms of natural gas, 2.3million tons of coal, 0.25 tons of coke, and smaller amounts of wastematerials, including tires. The case study summarized in this paperfocused on providing background information, an assessment ofenergy-efficiency opportunities and barriers, and program recommendationsthat can be used by program planners to better target products to thecement industry. The primary approach to this case study involvedwalk-through surveys of customer facilities and in depth interviews withcustomer decision makers and subsequent analysis of collected data. Inaddition, a basic review of the cement production process was developed,and summary cement industry energy and economic data were collected, andanalyzed. The analysis of secondary data provides background informationon the cement industry and identification of potential energy-efficiencyopportunities. The interviews provide some understanding of the customerperspective about implementation of energy-efficiencyprojects.

Coito, Fred; Powell, Frank; Worrell, Ernst; Price, Lynn; Friedmann, Rafael

2005-05-01T23:59:59.000Z

86

Nonlinear Processes in Geophysics c?European Geophysical Society 2002  

E-Print Network (OSTI)

Abstract. The paper presents measurements performed on the granular flow that develops in a drum partially filled with sand grains and rotating at various speeds. The aims of the paper are: to provide experimental evidence and measurements on grain flow in a drum; to compare theoretical and experimental velocity profiles; to point out discrepancies among theory and experiments. Velocity and “temperature ” profiles were obtained with a Laser Doppler Anemometer (LDA) in the mid-section of the stream, where the flow is usually uniform; image analysis and visual observations of the flow were also carried out to evaluate the local slope, the depths of the characteristic flow regions and the concentration of the granular material. A semi-empirical relation that fits the experimental velocity profiles is presented and compared with Takahashi’s velocity distributions for rigid and erodible bed. As proven by the distributions of free surface elevation, velocity, volumetric concentration and grain size across the drum, the three-dimensional nature of the flow field is not negligible. By increasing the drum rotation speed, in correspondence with critical and supercritical flows, changes in the flow regime are observed with formation of quasi-stationary surface waves. Wave development is described by analysing the extension and form of the experimental and theoretical velocity profiles. Wave effects on measurements are quantified and checked comparing the free-surface velocity-discharge relation obtained from experiments and from Takahashi’s model for erodible bed. 1

B. Zanuttigh; A. Lamberti

2000-01-01T23:59:59.000Z

87

Energy efficiency and carbon dioxide emissions reduction opportunities in the U.S. cement industry  

E-Print Network (OSTI)

Concepts of Waste Heat Recovery in Cement Plants” EnergyM. , 1990. “Waste Gas Heat Recovery in Cement Plants” Energy

Martin, Nathan; Worrell, Ernst; Price, Lynn

1999-01-01T23:59:59.000Z

88

Review of geophysical characterization methods used at the Hanford Site  

SciTech Connect

This paper presents a review of geophysical methods used at Hanford in two parts: (1) shallow surface-based geophysical methods and (2) borehole geophysical methods. This review was not intended to be ``all encompassing'' but should represent the vast majority (>90% complete) of geophysical work conducted onsite and aimed at hazardous waste investigations in the vadose zone and/or uppermost groundwater aquifers. This review did not cover geophysical methods aimed at large-scale geologic structures or seismicity and, in particular, did not include those efforts conducted in support of the Basalt Waste Isolation Program. This review focused primarily on the more recent efforts.

GV Last; DG Horton

2000-03-23T23:59:59.000Z

89

Regional distribution of diagenetic carbonate cement in Palaeocene deepwater  

E-Print Network (OSTI)

Regional distribution of diagenetic carbonate cement in Palaeocene deepwater sandstones: North Sea. This study attempts to make a large-scale regional examination of the distribution of carbonate cements

Haszeldine, Stuart

90

INVESTIGATIONS ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE  

E-Print Network (OSTI)

20 to 40% of the oil shale, and explosively rubblizing andCEMENTS FROM SPENT OIL SHALE P.K. Mehta and P. Persoff AprilCement Manufacture from Oil Shale, U.S. Patent 2,904,445,

Mehta, P.K.

2012-01-01T23:59:59.000Z

91

INVESTIGATIONS ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE  

E-Print Network (OSTI)

ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE P.K. Mehta and P.Cement Manufacture from Oil Shale, U.S. Patent 2,904,445,203 (1974), E. D. York, Amoco Oil Co. , letter to J, P. Fox,

Mehta, P.K.

2012-01-01T23:59:59.000Z

92

Geophysical Method At Raft River Geothermal Area (1977) | Open Energy  

Open Energy Info (EERE)

Geophysical Method At Raft River Geothermal Area (1977) Geophysical Method At Raft River Geothermal Area (1977) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geophysical Method At Raft River Geothermal Area (1977) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Geophysical Techniques Activity Date 1977 Usefulness not indicated DOE-funding Unknown Notes Borehole geophysics were completed at the Raft River valley, Idaho. References Applegate, J.K.; Donaldson, P.R.; Hinkley, D.L.; Wallace, T.L. (1 February 1977) Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Retrieved from "http://en.openei.org/w/index.php?title=Geophysical_Method_At_Raft_River_Geothermal_Area_(1977)&oldid=594349" Category: Exploration Activities

93

High Temperature Cements | Open Energy Information  

Open Energy Info (EERE)

High Temperature Cements High Temperature Cements Jump to: navigation, search Geothermal ARRA Funded Projects for High Temperature Cements Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":false,"width":"600px","height":"350px","centre":false,"layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"

94

Lithium, Potassium, and Sodium Additions to Cement Pastes  

Science Conference Proceedings (OSTI)

... Cement and Concrete Research 2004, 34, 2045-2056. 16. CRC Handbook of Chemistry and Physics. CRC Press, 1987. 17. ...

2011-02-02T23:59:59.000Z

95

NETL: Gasification - Systems Analyses  

NLE Websites -- All DOE Office Websites (Extended Search)

System Analyses Gasification Systems Systems Analyses Go to the NETL Gasification Systems Program's Systems and Industry Analyses Studies Technology & CostPerformance Studies NETL...

96

Encapsulation of mixed radioactive and hazardous waste contaminated incinerator ash in modified sulfur cement  

Science Conference Proceedings (OSTI)

Some of the process waste streams incinerated at various Department of Energy (DOE) facilities contain traces of both low-level radioactive (LLW) and hazardous constituents, thus yielding ash residues that are classified as mixed waste. Work is currently being performed at Brookhaven National Laboratory (BNL) to develop new and innovative materials for encapsulation of DOE mixed wastes including incinerator ash. One such material under investigation is modified sulfur cement, a thermoplastic developed by the US Bureau of Mines. Monolithic waste forms containing as much as 55 wt % incinerator fly ash from Idaho national Engineering Laboratory (INEL) have been formulated with modified sulfur cement, whereas maximum waste loading for this waste in hydraulic cement is 16 wt %. Compressive strength of these waste forms exceeded 27.6 MPa. Wet chemical and solid phase waste characterization analyses performed on this fly ash revealed high concentrations of soluble metal salts including Pb and Cd, identified by the Environmental Protection Agency (EPA) as toxic metals. Leach testing of the ash according to the EPA Toxicity Characteristic Leaching Procedure (TCLP) resulted in concentrations of Pb and Cd above allowable limits. Encapsulation of INEL fly ash in modified sulfur cement with a small quantity of sodium sulfide added to enhance retention of soluble metal salts reduced TCLP leachate concentrations of Pb and Cd well below EPA concentration criteria for delisting as a toxic hazardous waste. 12 refs., 4 figs., 2 tabs.

Kalb, P.D.; Heiser, J.H. III; Colombo, P.

1990-01-01T23:59:59.000Z

97

Thermal Energy Storage/Waste Heat Recovery Applications in the Cement Industry  

E-Print Network (OSTI)

The cement industry is the most energy-intensive industry in the United States in terms of energy cost as a percentage of the product according to a 1973 report by the Cost of Living Council. Martin Marietta Aerospace, Denver Division, and the Portland Cement Association have studied the potential benefits of using waste heat recovery methods and thermal energy storage systems in the cement manufacturing process. This work was performed under DOE Contract No. EC-77-C-01-50S4. The study has been completed and illustrates very attractive cost benefits realized from waste heat recovery/thermal storage systems. This paper will identify and quantify the sources of rejected energy in the cement manufacturing process, establish uses of this energy, exhibit various energy storage concepts, and present a methodology for selection of most promising energy storage systems. Two storage systems show the best promise - rock beds and draw salt storage. Thermal performance and detailed economic analyses have been performed on these systems and will be presented. Through use of thermal energy storage in conjunction with waste heat electric power generation units, an estimated 2.4 x 1013 BTU per year, or an equivalent of 4.0 x 10 barrels of oil per year, can be conserved. Attractive rates of return on investment of the proposed systems are an incentive for utilization and further development.

Beshore, D. G.; Jaeger, F. A.; Gartner, E. M.

1979-01-01T23:59:59.000Z

98

Comparison of modified sulfur cement and hydraulic cement for encapsulation of radioactive and mixed wastes  

SciTech Connect

The majority of solidification/stabilization systems for low-level radioactive waste (LLW) and mixed waste, both in the commercial sector and at Department of Energy (DOE) facilities, utilize hydraulic cement (such as portland cement) to encapsulate waste materials and yield a monolithic solid waste form for disposal. A new and innovative process utilizing modified sulfur cement developed by the US Bureau of Mines has been applied at Brookhaven National Laboratory (BNL) for the encapsulation of many of these problem'' wastes. Modified sulfur cement is a thermoplastic material, and as such, it can be heated above it's melting point (120{degree}C), combined with dry waste products to form a homogeneous mixture, and cooled to form a monolithic solid product. Under sponsorship of the DOE, research and development efforts at BNL have successfully applied the modified sulfur cement process for treatment of a range of LLWs including sodium sulfate salts, boric acid salts, and incinerator bottom ash and for mixed waste contaminated incinerator fly ash. Process development studies were conducted to determine optimal waste loadings for each waste type. Property evaluation studies were conducted to test waste form behavior under disposal conditions by applying relevant performance testing criteria established by the Nuclear Regulatory Commission (for LLW) and the Environmental Protection Agency (for hazardous wastes). Based on both processing and performance considerations, significantly greater waste loadings were achieved using modified sulfur cement when compared with hydraulic cement. Technology demonstration of the modified sulfur cement encapsulation system using production-scale equipment is scheduled for FY 1991. 12 refs., 8 figs., 3 tabs.

Kalb, P.D.; Heiser, J.H. III; Colombo, P.

1990-01-01T23:59:59.000Z

99

INVESTIGATIONS ON HYDRAULIC CEMENTS FROM SPENT OIL SHALE  

SciTech Connect

A process for making hydraulic cements from spent oil shale is described in this paper. Inexpensive cement is needed to grout abandoned in-situ retorts of spent shale for subsidence control, mitigation of leaching, and strengthening the retorted mass in order to recover oil from adjacent pillars of raw shale. A hydraulic cement was produced by heating a 1:1 mixture of Lurgi spent shale and CaCO{sub 3} at 1000 C for one hour. This cement would be less expensive than ordinary portland cement and is expected to fulfill the above requirements.

Mehta, P.K.; Persoff, P.

1980-04-01T23:59:59.000Z

100

Case Study of the California Cement Industry  

E-Print Network (OSTI)

and Natural Gas Consumption Energy Use Type GWh per year, electricity MW, electricity Million therms per year, natural gas California U.S.gas consumption. Table 2 compares cement industry electricity and natural gas use for California and the U.S.

Coito, Fred; Powell, Frank; Worrell, Ernst; Price, Lynn; Friedmann, Rafael

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Monitoring and repairing geothermal casing cement: a case history  

DOE Green Energy (OSTI)

A manmade geothermal reservoir has been created by drilling a deep hole into relatively impermeable hot rocks, creating a large surface area for heat transfer by hydraulic fracturing, then drilling a second hole to intersect the fracture to complete the closed circulation loop. A second generation system, presently being drilled, will entail creating multiple, parallel, vertical fractures between a pair of inclined boreholes. The original completion of injection Hole EE-1, consisting of a conventional high-temperature formulation of Class B portland cement, stabilized with 40% silica sand, did not withstand the cyclic stresses, and rapid deterioration of casing-to-cement and cement-to-formation bonds occurred, which allowed significant flow in the resulting microannulus. The performance history of the casing cement for the existing HDR EE-1 injection well, the subsequent remedial cementing program, the cement bond logs, and the radioactive isotope tracer injections tests, used to monitor the condition of the casing cement is described. (MHR)

Pettitt, R.A.

1980-01-01T23:59:59.000Z

102

BSU Geophysics Field Camp Report 2012 | Open Energy Information  

Open Energy Info (EERE)

BSU Geophysics Field Camp Report 2012 BSU Geophysics Field Camp Report 2012 Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: BSU Geophysics Field Camp Report 2012 Abstract Neal Hot Springs (NHS) is an active geothermal site and home to a new binary power plant built by U.S. Geothermal and funded through the Department of Energy. Power production is scheduled to begin in late 2012 and is proposed to generate 25 mega-watts of power to its customer Idaho Power. The project has also served Boise State University as an ideal location for geophysical exploration and research. Research began in spring of 2011 during BSU's annual geophysics field camp. Students and faculty conducted various geophysical surveys to gain insight into the controlling geological structure of the area. Studies of the site continued into 2012

103

Borehole geophysics evaluation of the Raft River geothermal reservoir,  

Open Energy Info (EERE)

reservoir, reservoir, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: GEOTHERMAL ENERGY; GEOTHERMAL FIELDS; GEOPHYSICAL SURVEYS; RAFT RIVER VALLEY; GEOTHERMAL EXPLORATION; BOREHOLES; EVALUATION; HOT-WATER SYSTEMS; IDAHO; MATHEMATICAL MODELS; WELL LOGGING; CAVITIES; EXPLORATION; GEOTHERMAL SYSTEMS; HYDROTHERMAL SYSTEMS; NORTH AMERICA; PACIFIC NORTHWEST REGION; USA Author(s): Applegate, J.K.; Donaldson, P.R.; Hinkley, D.L.; Wallace, T.L. Published: Geophysics, 2/1/1977 Document Number: Unavailable DOI: Unavailable Source: View Original Journal Article Geophysical Method At Raft River Geothermal Area (1977) Raft River Geothermal Area

104

Recent advances in optimized geophysical survey design Hansruedi Maurer1  

E-Print Network (OSTI)

- time tomography: Geophysics, 74, no.4, Q27­Q40, doi:10.1190/ 1.3141738. Atkinson, A. C., A. N. Donev

105

Geophysical Study of the Salton Trough of Southern California...  

Open Energy Info (EERE)

1964 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Geophysical Study of the Salton Trough of Southern California Citation Shawn...

106

LANL Institutes - Institute of Geophysics and Planetary Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

NEWS LIBRARY JOBS SITE MAP Emergency Maps Organization Goals Phone Search Science > LANL Institutes > Institute of Geophysics and Planetary Physics National Security Education...

107

An Integrated Geophysical Study Of The Geothermal Field Of Tule...  

Open Energy Info (EERE)

Geothermal Field Of Tule Chek, Bc, Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Integrated Geophysical Study Of The Geothermal Field Of...

108

Reconnaissance geophysical studies of the geothermal system in...  

Open Energy Info (EERE)

geophysical studies of the geothermal system in southern Raft River Valley, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Reconnaissance...

109

Borehole geophysics evaluation of the Raft River geothermal reservoir...  

Open Energy Info (EERE)

reservoir, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Borehole geophysics evaluation of the Raft River geothermal reservoir, Idaho Details...

110

Goal 4 Long Life Pavement Rehabilitation Strategies-Rigid: Flexural Fatigue Life of Hydraulic Cement Concrete Beams  

E-Print Network (OSTI)

Flexural Fatigue Life of Hydraulic Cement Concrete Beamsperformance of Fast-Setting Hydraulic Cement Concrete (and Thermal Expansion of Hydraulic Cement Concrete Mixes”,

Kohler, Erwin R.; Ali, Abdikarim; Harvey, John T

2005-01-01T23:59:59.000Z

111

Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in the Cement Industry in China  

E-Print Network (OSTI)

electricity and fuel efficiency improvements in the cement industryprice of electricity paid by the cement industry in 2009 isElectricity Conservation Supply Curve for the Cement Industry .

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

112

Corrosion-resistant Foamed Cements for Carbon Steels  

SciTech Connect

The cementitious material consisting of Secar #80, Class F fly ash, and sodium silicate designed as an alternative thermal-shock resistant cement for the Enhanced Geothermal System (EGS) wells was treated with cocamidopropyl dimethylamine oxide-based compound as foaming agent (FA) to prepare numerous air bubble-dispersed low density cement slurries of and #61603;1.3 g/cm3. Then, the foamed slurry was modified with acrylic emulsion (AE) as corrosion inhibitor. We detailed the positive effects of the acrylic polymer (AP) in this emulsion on the five different properties of the foamed cement: 1) The hydrothermal stability of the AP in 200 and #61616;C-autoclaved cements; 2) the hydrolysis-hydration reactions of the slurry at 85 and #61616;C; 3) the composition of crystalline phases assembled and the microstructure developed in autoclaved cements; 4) the mechanical behaviors of the autoclaved cements; and, 5) the corrosion mitigation of carbon steel (CS) by the polymer. For the first property, the hydrothermal-catalyzed acid-base interactions between the AP and cement resulted in Ca-or Na-complexed carboxylate derivatives, which led to the improvement of thermal stability of the AP. This interaction also stimulated the cement hydration reactions, enhancing the total heat evolved during cement’s curing. Addition of AP did not alter any of the crystalline phase compositions responsible for the strength of the cement. Furthermore, the AP-modified cement developed the porous microstructure with numerous defect-free cavities of disconnected voids. These effects together contributed to the improvement of compressive-strength and –toughness of the cured cement. AP modification of the cement also offered an improved protection of CS against brine-caused corrosion. There were three major factors governing the corrosion protection: 1) Reducing the extents of infiltration and transportation of corrosive electrolytes through the cement layer deposited on the underlying CS surfaces; 2) inhibiting the cathodic reactions at the corrosion site of CS; 3) extending the coverage of cement over CS surfaces; and, 4) improving the adherence of the cement to CS surfaces. Thus, the CS’s corrosion rate of 176 milli inch/per year (mpy) for 1 wt% FA-foamed cement without AP was considerably reduced to 69 mpy by adding only 2 wt% AP. Addition of AP at 10 wt% further reduced this rate to less than 10 mpy.

Sugama T.; Gill, S.; Pyatina, T., Muraca, A.; Keese, R.; Khan, A.; Bour, D.

2012-12-01T23:59:59.000Z

113

Field implementation of geophysical diffraction tomography  

SciTech Connect

Geophysical diffraction tomography is a new technique that shows promise as a tool for quantitative subsurface (below-ground) imaging. The approach being used is based upon the filtered backpropagation algorithm, which is a mathematical extension of the reconstruction software used in conventional X-ray CAT scanners. The difference between this method and existing methods is that the new algorithm rigorously accounts for diffraction effects through an exact inversion of the wave equation. This refinement is necessary in that it admits the use of acoustic and long-wavelength electromagnetic waves, allowing tomography to be taken from the laboratory to the field. ORNL's effort in geophysical diffraction tomography involves reducing the filtered backpropagation algorithm to practice. This requires the design and construction of field instrumentation as well as the development of an improved algorithm. The original algorithm requires the imaged region to be illuminated by plane waves. This requirement simplifies the algorithm but complicates its field implementation in that plane waves are difficult to generate. Consequently, ORNL has been working to generalize the filtered backpropagation algorithm to allow a broader range of incoming wave fields which can more easily be realized in the field. The instrumentation aspects involve the selection of appropriate sonic sources and receivers along with the development of a state-of-art, portable, computer-controlled, multichannel data acquisition system. 5 references, 6 figures.

Witten, A.J.; Stevens, S.S.

1984-01-01T23:59:59.000Z

114

Cement Additives from Fly Ash Opportunity  

NLE Websites -- All DOE Office Websites (Extended Search)

Device and Method for Separating Minerals, Carbon and Device and Method for Separating Minerals, Carbon and Cement Additives from Fly Ash Opportunity Research is currently active on the patented technology "Device and Method for Separating Minerals, Carbon, and Cement Additives from Fly Ash." The technology is available for licensing and/or further collaborative research from the U.S. Depart- ment of Energy's National Energy Technology Laboratory (NETL). Overview This invention includes a device, along with a method, to recover and use fly ash as a source of high purity carbon, ash, and minerals. The device and associated method can isolate components of the fly ash based on size and electrical charge. By improving beneficiation and usage methods, fly ash can be transformed from a waste material to a valuable by-product. Recent shifts to low nitrogen

115

Cement Kiln Flue Gas Recovery Scrubber Project  

SciTech Connect

The Cement Kiln Flue Gas Recovery Scrubber Project was a technical success and demonstrated the following: CKD can be used successfully as the sole reagent for removing SO2 from cement kiln flue gas, with removal efficiencies of 90 percent or greater; Removal efficiencies for HCl and VOCs were approximately 98 percent and 70 percent, respectively; Particulate emissions were low, in the range of 0.005 to 0.007 grains/standard cubic foot; The treated CKD sorbent can be recycled to the kiln after its potassium content has been reduced in the scrubber, thereby avoiding the need for landfilling; The process can yield fertilizer-grade K2SO4, a saleable by-product; and Waste heat in the flue gas can provide the energy required for evaporation and crystallization in the by-product recovery operation. The demonstration program established the feasibility of using the Recovery Scrubber{trademark} for desulfurization of flue gas from cement kilns, with generally favorable economics, assuming tipping fees are available for disposal of ash from biomass combustion. The process appears to be suitable for commercial use on any type of cement kiln. EPA has ruled that CKD is a nonhazardous waste, provided the facility meets Performance Standards for the Management of CKD (U.S. Environmental Protection Agency 1999d). Therefore, regulatory drivers for the technology focus more on reduction of air pollutants and pollution prevention, rather than on treating CKD as a hazardous waste. Application of the Recovery Scrubbe{trademark} concept to other waste-disposal operations, where pollution and waste reductions are needed, appears promising.

National Energy Technology Laboratory

2001-11-30T23:59:59.000Z

116

Lifecycle Analyses of Biofuels  

E-Print Network (OSTI)

08 Lifecycle Analyses of Biofuels Draft Report (May be citedLIFECYCLE ANALYSES OF BIOFUELS Draft manuscript (may belifecycle analysis (LCA) of biofuels for transportation has

Delucchi, Mark

2006-01-01T23:59:59.000Z

117

Cement Bond Log | Open Energy Information  

Open Energy Info (EERE)

Cement Bond Log Cement Bond Log Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Cement Bond Log Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Downhole Techniques Exploration Sub Group: Well Log Techniques Parent Exploration Technique: Acoustic Logs Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 0.8585 centUSD 8.5e-4 kUSD 8.5e-7 MUSD 8.5e-10 TUSD / foot Median Estimate (USD): 1.25125 centUSD 0.00125 kUSD 1.25e-6 MUSD 1.25e-9 TUSD / foot High-End Estimate (USD): 3.00300 centUSD 0.003 kUSD 3.0e-6 MUSD 3.0e-9 TUSD / foot Time Required Low-End Estimate: 0.35 days9.582478e-4 years 8.4 hours 0.05 weeks 0.0115 months / job

118

Wellbore Cement: Research That Begins Where the Sidewalk Ends | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Wellbore Cement: Research That Begins Where the Sidewalk Ends Wellbore Cement: Research That Begins Where the Sidewalk Ends Wellbore Cement: Research That Begins Where the Sidewalk Ends October 29, 2013 - 1:15pm Addthis Wellbore Cement: Research That Begins Where the Sidewalk Ends Learn more To learn more about this research, read the full report, An Assessment of Research Needs Related to Improving Primary Cement Isolation of Formations in Deep Offshore Wells. Full report on NETL's website. As we meander down the sidewalk, how many of us give more than a passing thought to the cement underfoot? For the most part, it's just another flat surface, a means to an end, whether it leads us to a coffee shop, book store, or parking lot. But when it's puckered, chipped, or crumbling, we certainly think about its need for repair.

119

Effective Permeability Change in Wellbore Cement with Carbon Dioxide Reaction  

Science Conference Proceedings (OSTI)

Portland cement, a common sealing material for wellbores for geological carbon sequestration was reacted with CO{sub 2} in supercritical, gaseous, and aqueous phases at various pressure and temperature conditions to simulate cement-CO{sub 2} reaction along the wellbore from carbon injection depth to the near-surface. Hydrated Portland cement columns (14 mm diameter x 90 mm length; water-to-cement ratio = 0.33) including additives such as steel coupons and Wallula basalt fragments were reacted with CO{sub 2} in the wet supercritical (the top half) and dissolved (the bottom half) phases under carbon sequestration condition with high pressure (10 MPa) and temperature (50 C) for 5 months, while small-sized hydrated Portland cement columns (7 mm diameter x 20 mm length; water-to-cement ratio = 0.38) were reacted with CO{sub 2} in dissolved phase at high pressure (10 MPa) and temperature (50 C) for 1 month or with wet CO{sub 2} in gaseous phase at low pressure (0.2 MPa) and temperature (20 C) for 3 months. XMT images reveal that the cement reacted with CO{sub 2} saturated groundwater had degradation depth of {approx}1 mm for 1 month and {approx}3.5 mm for 5 month, whereas the degradation was minor with cement exposure to supercritical CO{sub 2}. SEM-EDS analysis showed that the carbonated cement was comprised of three distinct zones; the innermost less degraded zone with Ca atom % > C atom %, the inner degraded zone with Ca atom % {approx} C atom % due to precipitation of calcite, the outer degraded zone with C atom % > Ca atom % due to dissolution of calcite and C-S-H, as well as adsorption of carbon to cement matrix. The outer degraded zone of carbonated cement was porous and fractured because of dissolution-dominated reaction by carbonic acid exposure, which resulted in the increase in BJH pore volume and BET surface area. In contrast, cement-wet CO{sub 2}(g) reaction at low P (0.2 MPa)-T (20 C) conditions for 1 to 3 months was dominated by precipitation of micron-sized calcite on the outside surface of cement, which resulted in the decrease in BJH pore volume and BET surface area. Cement carbonation and pore structure change are significantly dependent on pressure and temperature conditions as well as the phase of CO{sub 2}, which controls the balance between precipitation and dissolution in cement matrix. Geochemical modeling result suggests that ratio of solid (cement)-to-solution (carbonated water) has a significant effect on cement carbonation, thus the cement-CO{sub 2} reaction experiment needs to be conducted under realistic conditions representing the in-situ wellbore environment of carbon sequestration field site. Total porosity and air permeability for a duplicate cement column with water-to-cement ratio of 0.38 measured after oven-drying by Core Laboratories using Boyle's Law technique and steady-state method were 31% and 0.576 mD. A novel method to measure the effective liquid permeability of a cement column using X-ray micro-tomography images after injection of pressurized KI (potassium iodide) is under development by PNNL. Preliminary results indicate the permeability of a cement column with water-to-cement ratio of 0.38 is 4-8 mD. PNNL will apply the method to understand the effective permeability change of Portland cement by CO{sub 2}(g) reaction under a variety of pressure and temperature conditions to develop a more reliable well-bore leakage risk model.

Um, Wooyong; Jung, Hun Bok; Martin, Paul F.; McGrail, B. Peter

2011-11-01T23:59:59.000Z

120

An introduction to electrical resistivity in geophysics | Open Energy  

Open Energy Info (EERE)

An introduction to electrical resistivity in geophysics An introduction to electrical resistivity in geophysics Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: An introduction to electrical resistivity in geophysics Abstract Physicists are finding that the skills they have learned in their training may be applied to areas beyond traditional physics topics. One such field is that of geophysics. This paper presents the electrical resistivity component of an undergraduate geophysics course at Radford University. It is taught from a physics perspective, yet the application of the theory to the real world is the overriding goal. The concepts involved in electrical resistivity studies are first discussed in a general sense, and then they are studied through the application of the relevant electromagnetic theory.

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Geophysical Method At Raft River Geothermal Area (1975) | Open Energy  

Open Energy Info (EERE)

Method At Raft River Geothermal Area (1975) Method At Raft River Geothermal Area (1975) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geophysical Method At Raft River Geothermal Area (1975) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Geophysical Techniques Activity Date 1975 Usefulness not indicated DOE-funding Unknown Notes Geologic and geophysics studies were completed at the Raft River valley. References Williams, P.L.; Mabey, D.R.; Pierce, K.L.; Zohdy, A.A.R.; Ackermann, H.; Hoover, D.B. (1 May 1975) Geological and geophysical studies of a geothermal area in the southern Raft river valley, Idaho Retrieved from "http://en.openei.org/w/index.php?title=Geophysical_Method_At_Raft_River_Geothermal_Area_(1975)&oldid=59434

122

Integrated Surface Geophysical Methods for Characterization of the Naval  

Open Energy Info (EERE)

Integrated Surface Geophysical Methods for Characterization of the Naval Integrated Surface Geophysical Methods for Characterization of the Naval Air Warfare Center, New Jersey Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Integrated Surface Geophysical Methods for Characterization of the Naval Air Warfare Center, New Jersey Author USGS Published Publisher Not Provided, 2013 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Integrated Surface Geophysical Methods for Characterization of the Naval Air Warfare Center, New Jersey Citation USGS. Integrated Surface Geophysical Methods for Characterization of the Naval Air Warfare Center, New Jersey [Internet]. 2013. [updated 2013/01/03;cited 2013/11/22]. Available from: http://water.usgs.gov/ogw/bgas/toxics/NAWC-surface.html

123

Climate VISION: Private Sector Initiatives: Cement: Resources and Links -  

Office of Scientific and Technical Information (OSTI)

Resources & Links Resources & Links Technical Information Publications Case Studies Publications Energy Efficiency and Carbon Dioxide Emission Reduction Opportunities in the U.S. Cement Industry, Ernest Orlando Lawrence Berkeley National Laboratory, September 1999 (PDF 330 KB) Download Acrobat Reader Energy Efficiency Improvement and Cost-Saving Opportunities for Cement Making, an ENERGY STAR Guide for Energy and Plant Managers, Ernest Orlando Lawrence Berkeley National Laboratory, January 2004 (PDF 471 KB). Download Acrobat Reader This report presents information on the opportunities for energy and cost savings in a cement plant and assists energy and plant managers to strategically manage energy. Energy and Emission Reduction Opportunities for the Cement Industry, BCS,

124

Energy Efficiency Improvement Opportunities for the Cement Industry  

E-Print Network (OSTI)

Lime Institute. 2001. Energy Efficiency Opportunity Guide inIndustry, Office of Energy Efficiency, Natural Resourcesof a Cement Kiln, Energy Efficiency Demonstration Scheme,

Worrell, Ernst

2008-01-01T23:59:59.000Z

125

Stabilizing coal-water mixtures with portland cement  

DOE Patents (OSTI)

Coal-water mixes stabilized by the addition of portland cement which may additionally contain retarding carbohydrates, or borax are described.

Steinberg, Meyer (Melville, NY); Krishna, Coimbatore R. (Mount Sinai, NY)

1986-01-01T23:59:59.000Z

126

Evaluating Clean Development Mechanism Projects in the Cement...  

NLE Websites -- All DOE Office Websites (Extended Search)

You are here Home Buildings & Plants Evaluating Clean Development Mechanism Projects in the Cement Industry Using a Process-Step Benchmarking Approach Secondary menu...

127

Chloride Ion Diffusion in Cement-Based Materials ...  

Science Conference Proceedings (OSTI)

... into Hardened Cement Paste , Fly Ash, Silica Fume ... Diffusion Cell: Effects of Material and Test ... LJ, and Yu, SW, Diffusion in Cementitious Materials: II ...

2012-02-23T23:59:59.000Z

128

HIGH STRENGTH PHOSPHATE CEMENT USING INDUSTRIAL BYPRODUCT ASHES ...  

industries that use fossil fuels. Approximately one third of this ash is recycled in the cement based products as an additive. Typically, ...

129

Climate VISION: Private Sector Initiatives: Cement: Work Plans  

Office of Scientific and Technical Information (OSTI)

NewsEvents Contact Us CEMENT Letters of IntentAgreements Work Plans GHG Information Energy Footprints Resources & Links Industry Associations FederalState Programs Technical...

130

Estimation of the degree of hydration of blended cement ...  

Science Conference Proceedings (OSTI)

... The minimum particle size measured was 1 JUn. Air dispersion and laser scattering techniques were used. cement atw/c=0.4. ...

2004-10-05T23:59:59.000Z

131

Stabilizing coal-water mixtures with Portland cement  

DOE Patents (OSTI)

Coal-water mixes stabilized by the addition of Portland cement which may additionally contain retarding carbohydrates, or borax are described. 1 tab.

Steinberg, M.; Krishna, C.R.

1984-10-17T23:59:59.000Z

132

Background on the 2011 Cement EPI Update | ENERGY STAR  

NLE Websites -- All DOE Office Websites (Extended Search)

through informed and realistic goal setting. Download the Measuring Improvment in the Energy Performance of the U.S. Cement Industry report here. Energy Efficient Products...

133

The use of gasification ash in cement and concrete.  

E-Print Network (OSTI)

?? Cement is an essential material in todays society because, as a major constituent of concrete, it forms a fundamental element of any housing or… (more)

Du Plessis, Hanli

2007-01-01T23:59:59.000Z

134

Climate VISION: News and Events - Cement - California Portland...  

Office of Scientific and Technical Information (OSTI)

and plant benchmarking of energy using the ENERGY STAR cement plant energy performance indicator. CPC was among the inaugural group of companies to receive the ENERGY STAR...

135

Energy efficiency and carbon dioxide emissions reduction opportunities in the U.S. cement industry  

E-Print Network (OSTI)

Cement Industry, An Energy Perspective", U.S. Department ofDioxide Emissions for Energy Use in U.S. Cement Production (3. Primary Energy Consumption in U.S. Cement Production by

Martin, Nathan; Worrell, Ernst; Price, Lynn

1999-01-01T23:59:59.000Z

136

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

cement industry using energy conservation supply curves (energy conservation supply curve for Shandong’s cement industry,Energy Conservation Supply Curve This part of the analysis of Shandong’s cement industry

Price, Lynn

2010-01-01T23:59:59.000Z

137

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

2007 e. Ningguo Cement Plant 9100KW Waste Heat Recovery andof the surveyed cement plants have waste heat recovery powerWaste Heat Recovery, and Variable Frequency Drives (VFDs) for Large Motors/Fans in 35 Cement Plants

Price, Lynn

2010-01-01T23:59:59.000Z

138

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

Birch, E. 1990. “Energy Savings in Cement Kiln Systems,”11 C. Benchmarking and Energy-Saving Tool for Cement (BEST-26 B. Benchmarking and Energy-Saving Tool for Cement (BEST-

Price, Lynn

2010-01-01T23:59:59.000Z

139

Identification and Characterization of Hydrogeologic Units at the Nevada Test Site Using Geophysical Logs: Examples from the Underground Test Area Project  

Science Conference Proceedings (OSTI)

The diverse and complex geology of the Nevada Test Site region makes for a challenging environment for identifying and characterizing hydrogeologic units penetrated by wells drilled for the U.S. Department of Energy, National Nuclear Security Administration, Underground Test Area (UGTA) Environmental Restoration Sub-Project. Fortunately, UGTA geoscientists have access to large and robust sets of subsurface geologic data, as well as a large historical knowledge base of subsurface geological analyses acquired mainly during the underground nuclear weapons testing program. Of particular importance to the accurate identification and characterization of hydrogeologic units in UGTA boreholes are the data and interpretation principles associated with geophysical well logs. Although most UGTA participants and stakeholders are probably familiar with drill hole data such as drill core and cuttings, they may be less familiar with the use of geophysical logs; this document is meant to serve as a primer on the use of geophysical logs in the UGTA project. Standard geophysical logging tools used in the UGTA project to identify and characterize hydrogeologic units are described, and basic interpretation principles and techniques are explained. Numerous examples of geophysical log data from a variety of hydrogeologic units encountered in UGTA wells are presented to highlight the use and value of geophysical logs in the accurate hydrogeologic characterization of UGTA wells.

Lance Prothro, Sigmund Drellack, Margaret Townsend

2009-03-25T23:59:59.000Z

140

Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network (OSTI)

Concepts of Waste Heat Recovery in Cement Plants” EnergyM. , 1990. “Waste Gas Heat Recovery in Cement Plants” Energy

Worrell, Ernst

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Bottom-up Representation of Industrial Energy Efficiency Technologies in Integrated Assessment Models for the Cement Sector  

E-Print Network (OSTI)

Concepts of Waste Heat Recovery in Cement Plants” EnergyM. , 1990. “Waste Gas Heat Recovery in Cement Plants” Energy

Sathaye, J.

2011-01-01T23:59:59.000Z

142

Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network (OSTI)

and Oil Shale Minerals within the Production of Cement andin clinker production. If oil shale is burned separately,in cement production. Assuming that oil shale replaces 8

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

143

Promoting Energy Efficiency in Cement Making: The ENERGY STAR(R) for Industry Program  

E-Print Network (OSTI)

industry. For information Energy Guide for Cement Making,eworrellt@lbl.gov. End Notes Energy Efficiency Improvementthe Cement Industry: An ENERGY STAR® Guide for Energy and

Masanet, Eric; Worrell, Ernst

2007-01-01T23:59:59.000Z

144

Potential Energy Savings and CO2 Emissions Reduction of China's Cement Industry  

E-Print Network (OSTI)

Specific cement energy consumption: conversion of power into2006. Cement industry energy consumption status and energyZhou, H. , 2007a. Energy consumption and environment

Ke, Jing

2013-01-01T23:59:59.000Z

145

Guidebook for Using the Tool BEST Cement: Benchmarking and Energy Savings Tool for the Cement Industry  

SciTech Connect

The Benchmarking and Energy Savings Tool (BEST) Cement is a process-based tool based on commercially available efficiency technologies used anywhere in the world applicable to the cement industry. This version has been designed for use in China. No actual cement facility with every single efficiency measure included in the benchmark will likely exist; however, the benchmark sets a reasonable standard by which to compare for plants striving to be the best. The energy consumption of the benchmark facility differs due to differences in processing at a given cement facility. The tool accounts for most of these variables and allows the user to adapt the model to operational variables specific for his/her cement facility. Figure 1 shows the boundaries included in a plant modeled by BEST Cement. In order to model the benchmark, i.e., the most energy efficient cement facility, so that it represents a facility similar to the user's cement facility, the user is first required to input production variables in the input sheet (see Section 6 for more information on how to input variables). These variables allow the tool to estimate a benchmark facility that is similar to the user's cement plant, giving a better picture of the potential for that particular facility, rather than benchmarking against a generic one. The input variables required include the following: (1) the amount of raw materials used in tonnes per year (limestone, gypsum, clay minerals, iron ore, blast furnace slag, fly ash, slag from other industries, natural pozzolans, limestone powder (used post-clinker stage), municipal wastes and others); the amount of raw materials that are preblended (prehomogenized and proportioned) and crushed (in tonnes per year); (2) the amount of additives that are dried and ground (in tonnes per year); (3) the production of clinker (in tonnes per year) from each kiln by kiln type; (4) the amount of raw materials, coal and clinker that is ground by mill type (in tonnes per year); (5) the amount of production of cement by type and grade (in tonnes per year); (6) the electricity generated onsite; and, (7) the energy used by fuel type; and, the amount (in RMB per year) spent on energy. The tool offers the user the opportunity to do a quick assessment or a more detailed assessment--this choice will determine the level of detail of the energy input. The detailed assessment will require energy data for each stage of production while the quick assessment will require only total energy used at the entire facility (see Section 6 for more details on quick versus detailed assessments). The benchmarking tool provides two benchmarks--one for Chinese best practices and one for international best practices. Section 2 describes the differences between these two and how each benchmark was calculated. The tool also asks for a target input by the user for the user to set goals for the facility.

Galitsky, Christina; Price, Lynn; Zhou, Nan; Fuqiu , Zhou; Huawen, Xiong; Xuemin, Zeng; Lan, Wang

2008-07-30T23:59:59.000Z

146

Algorithms for raw material dosage control for cement plants  

Science Conference Proceedings (OSTI)

The raw material used for producing cement is obtained using several components which we must dosages so that the mixture should have a uniform chemical composition. This paper work proposes fuzzy algorithms for performing this process. Using them turns ... Keywords: algorithm, cement, control, dosage, fuzzy, raw material

Stela Rusu-Anghel; Ovidiu Tirian; Osaci Mihaela; Dinis Corina

2009-07-01T23:59:59.000Z

147

Modeling of Sulfate Resistance of Flyash Blended Cement Concrete Materials  

E-Print Network (OSTI)

Modeling of Sulfate Resistance of Flyash Blended Cement Concrete Materials Barzin Mobasher1 or water with high SO3 content. External sulfate 2007 World of Coal Ash (WOCA), May 7-10, 2007, Covington, the effect of curing (especially in the case of blended cements) and the effect of the pH change during

Mobasher, Barzin

148

PultrusionPultrusion of Fabric Reinforced Highof Fabric Reinforced High Flyash Blended Cement CompositesFlyash Blended Cement Composites  

E-Print Network (OSTI)

PultrusionPultrusion of Fabric Reinforced Highof Fabric Reinforced High Flyash Blended Cement CompositesFlyash Blended Cement Composites Barzin Mobasher1, Alva Peled 2, Jitendra Pahalijani1 1 Department Engineering Ben-Gurion University, Israel The World of Coal Ash 2005 International Ash Utilization Symposium

Mobasher, Barzin

149

Integrated Geophysical Exploration of a Known Geothermal Resource: Neal Hot  

Open Energy Info (EERE)

Geophysical Exploration of a Known Geothermal Resource: Neal Hot Geophysical Exploration of a Known Geothermal Resource: Neal Hot Springs Jump to: navigation, search OpenEI Reference LibraryAdd to library Book Section: Integrated Geophysical Exploration of a Known Geothermal Resource: Neal Hot Springs Abstract We present integrated geophysical data to characterize a geothermal system at Neal Hot Springs in eastern Oregon. This system is currently being developed for geothermal energy production. The hot springs are in a region of complex and intersecting fault trends associated with two major extensional events, the Oregon-Idaho Graben and the Western Snake River Plain. The intersection of these two fault systems, coupled with high geothermal gradients from thin continental crust produces pathways for surface water and deep geothermal water interactions at Neal Hot Springs.

150

Rules and Regulations Governing Geophysical, Seismic or Other Type  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Rules and Regulations Governing Geophysical, Seismic or Other Type Rules and Regulations Governing Geophysical, Seismic or Other Type Exploration on State-Owned Lands Other Than State-Owned Marine Waters (Mississippi) Rules and Regulations Governing Geophysical, Seismic or Other Type Exploration on State-Owned Lands Other Than State-Owned Marine Waters (Mississippi) < Back Eligibility Commercial Developer Fuel Distributor General Public/Consumer Industrial Investor-Owned Utility Municipal/Public Utility Utility Program Info State Mississippi Program Type Environmental Regulations Siting and Permitting Provider Mississippi Development Authority The Rules and Regulations Governing Geophysical, seismic or Other Type Exploration on State-Owned Lands Other than State-Owned Marine Waters is applicable to the Natural Gas Sector and the Coal with CCS Sector. This law

151

Geological and geophysical analysis of Coso Geothermal Exploration Hole No.  

Open Energy Info (EERE)

and geophysical analysis of Coso Geothermal Exploration Hole No. and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geological and geophysical analysis of Coso Geothermal Exploration Hole No. 1 (CGEH-1), Coso Hot Springs KGRA, California Details Activities (5) Areas (1) Regions (0) Abstract: The Coso Geothermal Exploration Hole number one (CGEH-1) was drilled in the Coso Hot Springs KGRA, California, from September 2 to December 2, 1977. Chip samples were collected at ten foot intervals and extensive geophysical logging surveys were conducted to document the geologic character of the geothermal system as penetrated by CGEH-1. The major rock units encountered include a mafic metamorphic sequence and a

152

Beyond Gaussian Statistical Modeling in Geophysical Data Assimilation  

Science Conference Proceedings (OSTI)

This review discusses recent advances in geophysical data assimilation beyond Gaussian statistical modeling, in the fields of meteorology, oceanography, as well as atmospheric chemistry. The non-Gaussian features are stressed rather than the ...

Marc Bocquet; Carlos A. Pires; Lin Wu

2010-08-01T23:59:59.000Z

153

Geophysical Applications of Partial Wavelet Coherence and Multiple Wavelet Coherence  

Science Conference Proceedings (OSTI)

In this paper, the application of partial wavelet coherence (PWC) and multiple wavelet coherence (MWC) to geophysics is demonstrated. PWC is a technique similar to partial correlation that helps identify the resulting wavelet coherence (WTC) ...

Eric K. W. Ng; Johnny C. L. Chan

2012-12-01T23:59:59.000Z

154

Contour Analysis: A New Approach for Melding Geophysical Fields  

Science Conference Proceedings (OSTI)

This paper introduces a new approach, contour analysis, for combining independent estimates of a geophysical field to produce a single realization incorporating data from all sources. Contour analysis divides the field estimates into contours and ...

Arthur J. Mariano

1990-04-01T23:59:59.000Z

155

Near-Inertial Oscillations of Geophysical Surface Frontal Currents  

Science Conference Proceedings (OSTI)

Intrinsic oscillations of stable geophysical surface frontal currents of the unsteady, nonlinear, reduced-gravity shallow-water equations on an f plane are investigated analytically and numerically. For frictional (Rayleigh) currents ...

Angelo Rubino; Sergey Dotsenko; Peter Brandt

2003-09-01T23:59:59.000Z

156

AGU: Journal of Geophysical Research geomagnetic ionosphere currents  

E-Print Network (OSTI)

AGU: Journal of Geophysical Research Keywords geomagnetic ionosphere currents Index Terms Ionosphere: Polar cap ionosphere Ionosphere: Current systems Geomagnetism and Paleomagnetism: Rapid time variations Space Weather: Impacts on technological systems Space Weather: Geomagnetically induced currents

Michigan, University of

157

Understanding biogeobatteries: Where geophysics meets microbiology  

SciTech Connect

Although recent research suggests that contaminant plumes behave as geobatteries that produce an electrical current in the ground, no associated model exists that honors both geophysical and biogeochemical constraints. Here, we develop such a model to explain the two main electrochemical contributions to self-potential signals in contaminated areas. Both contributions are associated with the gradient of the activity of two types of charge carriers, ions and electrons. In the case of electrons, bacteria act as catalysts for reducing the activation energy needed to exchange the electrons between electron donor and electron acceptor. Possible mechanisms that facilitate electron migration include iron oxides, clays, and conductive biological materials, such as bacterial conductive pili or other conductive extracellular polymeric substances. Because we explicitly consider the role of biotic processes in the geobattery model, we coined the term 'biogeobattery'. After theoretical development of the biogeobattery model, we compare model predictions with self-potential responses associated with laboratory and field-scale conducted in contaminated environments. We demonstrate that the amplitude and polarity of large (>100 mV) self-potential signatures requires the presence of an electronic conductor to serve as a bridge between electron donors and acceptors. Small self-potential anomalies imply that electron donors and electron acceptors are not directly interconnected, but instead result simply from the gradient of the activity of the ionic species that are present in the system.

Revil, A.; Mendonca, C.A.; Atekwana, E.A.; Kulessa, B.; Hubbard, S.S.; Bohlen, K.

2009-08-15T23:59:59.000Z

158

ORISE: Radiochemical analyses  

NLE Websites -- All DOE Office Websites (Extended Search)

Radiochemical analyses Radiochemical analyses ORISE techinican performs a radiochemical analysis To complement our environmental assessment and health physics capabilities, the Oak Ridge Institute for Science and Education (ORISE) maintains a radiochemistry laboratory that facilitates the analysis of environmental samples and unique matrices. ORISE performs radiochemical analyses exclusively for the U.S. Nuclear Regulatory Commission (NRC), as well as provides support to the U.S. Department of Energy, the U.S. Department of Homeland Security, and other federal agencies and state governments. Key laboratory capabilities include: Alpha spectroscopy Gamma spectroscopy Liquid scintillation spectroscopy Low-background gross alpha and beta assays Radiochemical analyses for alpha and beta emitters

159

Energy Efficiency Improvement Opportunities for the Cement Industry  

Science Conference Proceedings (OSTI)

This report provides information on the energy savings, costs, and carbon dioxide emissions reductions associated with implementation of a number of technologies and measures applicable to the cement industry. The technologies and measures include both state-of-the-art measures that are currently in use in cement enterprises worldwide as well as advanced measures that are either only in limited use or are near commercialization. This report focuses mainly on retrofit measures using commercially available technologies, but many of these technologies are applicable for new plants as well. Where possible, for each technology or measure, costs and energy savings per tonne of cement produced are estimated and then carbon dioxide emissions reductions are calculated based on the fuels used at the process step to which the technology or measure is applied. The analysis of cement kiln energy-efficiency opportunities is divided into technologies and measures that are applicable to the different stages of production and various kiln types used in China: raw materials (and fuel) preparation; clinker making (applicable to all kilns, rotary kilns only, vertical shaft kilns only); and finish grinding; as well as plant wide measures and product and feedstock changes that will reduce energy consumption for clinker making. Table 1 lists all measures in this report by process to which they apply, including plant wide measures and product or feedstock changes. Tables 2 through 8 provide the following information for each technology: fuel and electricity savings per tonne of cement; annual operating and capital costs per tonne of cement or estimated payback period; and, carbon dioxide emissions reductions for each measure applied to the production of cement. This information was originally collected for a report on the U.S. cement industry (Worrell and Galitsky, 2004) and a report on opportunities for China's cement kilns (Price and Galitsky, in press). The information provided in this report is based on publicly-available reports, journal articles, and case studies from applications of technologies around the world.

Price, Lynn; Worrell, Ernst; Galitsky, Christina; Price, Lynn

2008-01-31T23:59:59.000Z

160

Climate VISION: Private Sector Initiatives: Cement  

Office of Scientific and Technical Information (OSTI)

GHG Information GHG Information This section provides various sources describing the energy consumption of the industrial sector and the carbon emissions in particular. Below is an estimate of the emissions expressed in million metric tons of carbon equivalents (MMTCE) based upon the Annual Energy Outlook 2003. According to EIA "Annual Energy Outlook 2003" data, energy-related CO2 emissions for the cement industry were 8.3 MMTCE in 2002, and process-related CO2 emissions were approximately 11.4 MMTCE for a total of 19.7 MMTCE. (The AEO Supplementary tables were generated for the reference case of the Annual Energy Outlook 2003 using the National Energy Modeling System, a computer-based model which produces annual projections of energy markets for 2000-2025. The AEO2003 reflects data and information available as of

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Mechanical Properties and Durability of Concrete Made with High-Volume Fly Ash Blended Cement Produced in a Cement Plant: Commercial -Scale Trial Results  

Science Conference Proceedings (OSTI)

This interim report documents the preliminary results of the commercial-scale production of a high-volume fly ash (HVFA) blended cement, using up to 55 percent fly ash to replace the portland cement.

2000-12-12T23:59:59.000Z

162

Innovative cement helps DOE safeguard nuclear facilities | Argonne National  

NLE Websites -- All DOE Office Websites (Extended Search)

Innovative cement helps DOE safeguard nuclear facilities Innovative cement helps DOE safeguard nuclear facilities By Jared Sagoff * April 25, 2008 Tweet EmailPrint ARGONNE, Ill. - When Argonne materials scientists Arun Wagh and Dileep Singh initially developed Ceramicrete®, a novel phosphate cement that stabilizes radioactive waste streams, they did not immediately recognize that with one or two extra ingredients, the cement could solve another problem in the nuclear complex. In the course of the development of the Ceramicrete technology, Wagh and Singh formed a multilayered collaboration among Argonne, the Russian Federal Nuclear Center (VNIIEF) in Sarov, Russia, and Ceradyne Boron Products LLC. This international scientific partnership created an unusually efficient nuclear shield that blocks the neutrons and gamma rays

163

Massive Cement Pour into Hanford Site Nuclear Facility Underway: Recovery  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Massive Cement Pour into Hanford Site Nuclear Facility Underway: Massive Cement Pour into Hanford Site Nuclear Facility Underway: Recovery Act Funding Puts U Canyon in Home Stretch of Demolition Preparations Massive Cement Pour into Hanford Site Nuclear Facility Underway: Recovery Act Funding Puts U Canyon in Home Stretch of Demolition Preparations June 14, 2011 - 12:00pm Addthis Media Contacts Andre Armstrong, CH2M HILL Plateau Remediation Company (509) 376-6773 Andre_L_Armstrong@rl.gov Geoff Tyree, DOE (509) 376-4171 Geoffrey.Tyree@rl.doe.gov RICHLAND, Wash. - Hanford workers are pouring enough cement-like material to fill six Olympic-size wimming pools in one of the U.S. Department of Energy's (DOE) largest nuclear facilities at the Hanford Site in southeast Washington State to prepare the massive building for demolition.

164

Nanostructure and Nanomechanics of Cement: Polydisperse Colloidal Packing  

E-Print Network (OSTI)

Cement setting and cohesion are governed by the precipitation and growth of calcium-silicate-hydrate, through a complex evolution of microstructure. A colloidal model to describe nucleation, packing, and rigidity of ...

Masoero, Enrico

165

Cement Dissolution and Delamination of Hyper-Eutectoid ... - TMS  

Science Conference Proceedings (OSTI)

May 1, 2007 ... Cement Dissolution and Delamination of Hyper-Eutectoid Pearlitic Steel Filaments for Tire Cords by Y. S. Yang, S. Y. Park, J. G. Bae, M. C. Kim, ...

166

Implementing Energy Efficiency Policy for the Cement Industry...  

NLE Websites -- All DOE Office Websites (Extended Search)

Implementing Energy Efficiency Policy for the Cement Industry in India: The PAT Mechanism of the NMEEE Speaker(s): S. S. Krishnan Date: April 13, 2011 - 12:00pm Location: 90-4133...

167

Mechanical and acoustic properties of weakly cemented granular rocks  

SciTech Connect

This paper presents the results of laboratory measurements on the mechanical and acoustic properties of weakly cemented granular rock. Artificial rock samples were fabricated by cementing sand and glass beads with sodium silicate binder. During uniaxial compression tests, the rock samples showed stress-strain behavior which was more similar to that of soils than competent rocks, exhibiting large permanent deformations with frictional slip. The mechanical behavior of the samples approached that of competent rocks as the amount of binder was increased. For very weak samples, acoustic waves propagating in these rocks showed very low velocities of less than 1000 m/sec for compressional waves. A borehole made within this weakly cemented rock exhibited a unique mode of failure that is called ''anti-KI mode fracture'' in this paper. The effect of cementation, grain type, and boundary conditions on this mode of failure was also examined experimentally.

Nakagawa, S.; Myer, L.R.

2001-05-09T23:59:59.000Z

168

Massive Cement Pour into Hanford Site Nuclear Facility Underway: Recovery  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Massive Cement Pour into Hanford Site Nuclear Facility Underway: Massive Cement Pour into Hanford Site Nuclear Facility Underway: Recovery Act Funding Puts U Canyon in Home Stretch of Demolition Preparations Massive Cement Pour into Hanford Site Nuclear Facility Underway: Recovery Act Funding Puts U Canyon in Home Stretch of Demolition Preparations June 14, 2011 - 12:00pm Addthis Media Contacts Andre Armstrong, CH2M HILL Plateau Remediation Company (509) 376-6773 Andre_L_Armstrong@rl.gov Geoff Tyree, DOE (509) 376-4171 Geoffrey.Tyree@rl.doe.gov RICHLAND, Wash. - Hanford workers are pouring enough cement-like material to fill six Olympic-size wimming pools in one of the U.S. Department of Energy's (DOE) largest nuclear facilities at the Hanford Site in southeast Washington State to prepare the massive building for demolition.

169

Geophysical background and as-built target characteristics  

Science Conference Proceedings (OSTI)

The US Department of Energy (DOE) Grand Junction Projects Office (GJPO) has provided a facility for DOE, other Government agencies, and the private sector to evaluate and document the utility of specific geophysical measurement techniques for detecting and defining cultural and environmental targets. This facility is the Rabbit Valley Geophysics Performance Evaluation Range (GPER). Geophysical surveys prior to the fiscal year (FY) 1994 construction of new test cells showed the primary test area to be relatively homogeneous and free from natural or man-made artifacts, which would generate spurious responses in performance evaluation data. Construction of nine new cell areas in Rabbit Valley was completed in June 1994 and resulted in the emplacement of approximately 150 discrete targets selected for their physical and electrical properties. These targets and their geophysical environment provide a broad range of performance evaluation parameters from ``very easy to detect`` to ``challenging to the most advanced systems.`` Use of nonintrusive investigative techniques represents a significant improvement over intrusive characterization methods, such as drilling or excavation, because there is no danger of exposing personnel to possible hazardous materials and no risk of releasing or spreading contamination through the characterization activity. Nonintrusive geophysical techniques provide the ability to infer near-surface structure and waste characteristics from measurements of physical properties associated with those targets.

Allen, J.W.

1994-09-01T23:59:59.000Z

170

BEST-Cement for China | Open Energy Information  

Open Energy Info (EERE)

BEST-Cement for China BEST-Cement for China Jump to: navigation, search Tool Summary LAUNCH TOOL Name: BEST-Cement Agency/Company /Organization: Lawrence Berkeley National Laboratory Partner: Energy Research Institute, China Cement Association, China Building Materials Academy, Shandong University, U.S. Environmental Protection Agency, Energy Foundation, Dow Chemical Company Sector: Energy Focus Area: Industry Topics: Pathways analysis, Resource assessment Resource Type: Software/modeling tools User Interface: Desktop Application Website: china.lbl.gov/research/industry/benchmarking/best-cement/best-cement-c Country: China UN Region: Eastern Asia Coordinates: 35.86166°, 104.195397° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.86166,"lon":104.195397,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

171

How to avoid casing collapse during inner string cementing  

Science Conference Proceedings (OSTI)

This article reports that in the Mobile Bay area offshore Alabama, inflatable surface packoffs are being used to seal the top of the 20-in. conductor casing-to-drill pipe annulus. With the seal in place, annular pressure is maintained during inner string cementing jobs to counter forces that tend to shorten the drill pipe inner string. Inside pressure also helps protect the casing from collapse due to the hydrostatic pressure of a long column of cement. Casing is less resistant than the bottom of the hole and the wellbore, (unless a weak formation breaks down) and can crush under the hydrostatic weight when fluid inside does not offer enough offsetting support. Casing collapse can cause cement to leak into the casing-to-drill pipe annulus, thereby cementing the drill string in the well or otherwise ruining the cement job. In a situation where casing does not have sufficient collapse resistance to withstand hydrostatic pressure loading, a surface packoff can be used to maintain pressure inside the casing throughout the cementing job.

Lubitz, R.

1987-03-01T23:59:59.000Z

172

Potential for energy conservation in the cement industry  

Science Conference Proceedings (OSTI)

This report assesses the potential for energy conservation in the cement industry. Energy consumption per ton of cement decreased 20% between 1972 and 1982. During this same period, the cement industry became heavily dependent on coal and coke as its primary fuel source. Although the energy consumed per ton of cement has declined markedly in the past ten years, the industry still uses more than three and a half times the fuel that is theoretically required to produce a ton of clinker. Improving kiln thermal efficiency offers the greatest opportunity for saving fuel. Improving the efficiency of finish grinding offers the greatest potential for reducing electricity use. Technologies are currently available to the cement industry to reduce its average fuel consumption per ton by product by as much as 40% and its electricity consumption per ton by about 10%. The major impediment to adopting these technologies is the cement industry's lack of capital as a result of low or no profits in recent years.

Garrett-Price, B.A.

1985-02-01T23:59:59.000Z

173

Characterization Of Geothermal Resources Using New Geophysical Technology |  

Open Energy Info (EERE)

Using New Geophysical Technology Using New Geophysical Technology Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Characterization Of Geothermal Resources Using New Geophysical Technology Details Activities (2) Areas (2) Regions (0) Abstract: This paper presents a geothermal case history using a relatively new but proven technology that can accurately map groundwater at significant depths (up to 1,000 meters) over large areas (square kilometers) in short periods of time (weeks). Understanding the location and extent of groundwater resources is very important to the geothermal industry for obvious reasons. It is crucial to have a cost-effective method of understanding where concentrations of geothermal water are located as well as the preferential flow paths of the water in the subsurface. Such

174

Well casing-based geophysical sensor apparatus, system and method  

DOE Patents (OSTI)

A geophysical sensor apparatus, system, and method for use in, for example, oil well operations, and in particular using a network of sensors emplaced along and outside oil well casings to monitor critical parameters in an oil reservoir and provide geophysical data remote from the wells. Centralizers are affixed to the well casings and the sensors are located in the protective spheres afforded by the centralizers to keep from being damaged during casing emplacement. In this manner, geophysical data may be detected of a sub-surface volume, e.g. an oil reservoir, and transmitted for analysis. Preferably, data from multiple sensor types, such as ERT and seismic data are combined to provide real time knowledge of the reservoir and processes such as primary and secondary oil recovery.

Daily, William D. (Livermore, CA)

2010-03-09T23:59:59.000Z

175

Geophysical Investigations of Archaeological Resources in Southern Idaho  

SciTech Connect

At the Idaho National Laboratory and other locations across southern Idaho, geophysical tools are being used to discover, map, and evaluate archaeological sites. A variety of settings are being explored to expand the library of geophysical signatures relevant to archaeology in the region. Current targets of interest include: prehistoric archaeological features in open areas as well as lava tube caves, historical structures and activity areas, and emigrant travel paths. We draw from a comprehensive, state of the art geophysical instrumentation pool to support this work. Equipment and facilities include ground penetrating radar, electromagnetic and magnetic sensors, multiple resistivity instruments, advanced positioning instrumentation, state of the art processing and data analysis software, and laboratory facilities for controlled experiments.

Brenda Ringe Pace; Gail Heath; Clark Scott; Carlan McDaniel

2005-10-01T23:59:59.000Z

176

Reconnaissance geophysical studies of the geothermal system in southern  

Open Energy Info (EERE)

geophysical studies of the geothermal system in southern geophysical studies of the geothermal system in southern Raft River Valley, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Reconnaissance geophysical studies of the geothermal system in southern Raft River Valley, Idaho Details Activities (4) Areas (1) Regions (0) Abstract: Gravity, aeromagnetic, and telluric current surveys in the southern Raft River have been used to infer the structure and the general lithology underlying the valley. The gravity data indicate the approximate thickness of the Cenozoic rocks and location of the larger normal faults, and the aeromagnetic data indicate the extent of the major Cenozoic volcanic units. The relative ellipse area contour map compiled from the telluric current survey generally conforms to the gravity map except for

177

Hydration kinetics modeling of Portland cement considering the effects of curing temperature and applied pressure  

Science Conference Proceedings (OSTI)

A hydration kinetics model for Portland cement is formulated based on thermodynamics of multiphase porous media. The mechanism of cement hydration is discussed based on literature review. The model is then developed considering the effects of chemical composition and fineness of cement, water-cement ratio, curing temperature and applied pressure. The ultimate degree of hydration of Portland cement is also analyzed and a corresponding formula is established. The model is calibrated against the experimental data for eight different Portland cements. Simple relations between the model parameters and cement composition are obtained and used to predict hydration kinetics. The model is used to reproduce experimental results on hydration kinetics, adiabatic temperature rise, and chemical shrinkage of different cement pastes. The comparisons between the model reproductions and the different experimental results demonstrate the applicability of the proposed model, especially for cement hydration at elevated temperature and high pressure.

Lin Feng [Department of Civil Engineering and Engineering Mechanics, Columbia University, New York, NY 10027 (United States); Department of Civil Engineering, Tsinghua University, Beijing 100084 (China)], E-mail: fl2040@columbia.edu; Meyer, Christian [Department of Civil Engineering and Engineering Mechanics, Columbia University, New York, NY 10027 (United States)

2009-04-15T23:59:59.000Z

178

Methodological and Practical Considerations for Developing Multiproject Baselines for Electric Power and Cement Industry Projects in Central America  

E-Print Network (OSTI)

from the global cement industry’, Ann. Rev. Energy Environ.were estimated. Cement industry BERs ranged from 205 kgCO 2carbon intensity, cement industry, Central America, electric

Murtishaw, Scott; Sathaye, Jayant; Galitsky, Christina; Dorion, Kristel

2008-01-01T23:59:59.000Z

179

Treated ceramic microsphere-cement lightweight composites for geothermal cementing systems  

DOE Green Energy (OSTI)

The compressive strength and water permeability of high-temperature light-weight cementing materials containing sillimanite-based hollow microspheres as a filler can be improved by treating the surfaces of the microspheres with a Ca(OH)/sub 2/-saturated solution at temperatures up to 200/sup 0/C. The precipitation of an epitaxial layer formed by an interaction between a hot calcium hydroxide solution and the surface of the sphere plays an essential role in developing favorable bonding characteristics at the interfaces and in promoting the hydration of the cement matrix. The properties of the composites include a slurry density of <1.2 g/cc at 25/sup 0/C, a 300/sup 0/C-24 hour compressive strength of >1015 psi (7.0 MPa), a water permeability of <10/sup -4/ Darcy, and a bulk density of <1.0 g/cc. It was observed that tobermorite-truscottite transformation and anorthite formation during autoclave exposure for 180 days in brine at 300/sup 0/C results in slight strength reductions and increased water permeability.

Sugama, Toshifumi; Kukacka, L.E.

1987-08-01T23:59:59.000Z

180

High Precision Geophysics & Detailed Structural Exploration & Slim Well  

Open Energy Info (EERE)

Precision Geophysics & Detailed Structural Exploration & Slim Well Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title High Precision Geophysics & Detailed Structural Exploration & Slim Well Drilling Project Type / Topic 1 Recovery Act: Geothermal Technologies Program Project Type / Topic 2 Validation of Innovative Exploration Technologies Project Description Existing geologic data show that the basalt has been broken by complex intersecting fault zones at the hot springs. Natural state hot water flow patterns in the fracture network will be interpreted from temperature gradient wells and then tested with moderate depth core holes. Production and injection well tests of the core holes will be monitored with an innovative combination of Flowing Differential Self-Potential (FDSP) and resistivity tomography surveys. The cointerpretation of all these highly detailed geophysical methods sensitive to fracture permeability patterns and water flow during the well tests will provide unprecedented details on the structures and flow in a shallow geothermal aquifer and support effective development of the low temperature reservoir and identification of deep up flow targets.

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Wavelet denoising techniques with applications to experimental geophysical data  

Science Conference Proceedings (OSTI)

In this paper, we compare Fourier-based and wavelet-based denoising techniques applied to both synthetic and real experimental geophysical data. The Fourier-based technique used for comparison is the classical Wiener estimator, and the wavelet-based ... Keywords: Denoising, Empirical Bayes, Wavelet, Wavelet thresholding, Wiener filter

Albert C. To; Jeffrey R. Moore; Steven D. Glaser

2009-02-01T23:59:59.000Z

182

Axial strength of cement borehole plugs in granite and basalt. Topical report on rock mass sealing  

SciTech Connect

This report describes experimental and theoretical studies of the axial strength of cement plugs installed in boreholes drilled coaxially in granite and in basalt cylinders. Experimental work has consisted of loading the cement plugs to failure while measuring loads and displacements. Such tests have been performed on borehole plugs with a diameter and a length ranging from 2.5 cm to 10 cm. Results from over one hundred experiments show that the strength is high, sufficient for anticipated loads at repository depths, but very variable, complicating the design of very short plugs. Significant residual strength (thirty to fifty percent of the peak strength) is observed. A frictional model of the interface shear strength, tau = c + sigma(tan phi), in combination with the assumption of an exponential shear stress distribution or plug-rock load transfer, provides the simplest realistic model for plug strength characterization. The integrated strength thus calculated compares moderately well with experimental results. An extensive review is given of more sophisticated analysis procedures that should be of value for general plug design applications. Generic analyses and their implications for plug performance are included. Variability of experimental results complicates the assessment of their direct detailed applicability. 115 references, 70 figures, 19 tables.

Stormont, J.C.; Daemen, J.J.K.

1983-12-01T23:59:59.000Z

183

The CO2 Abatement Cost Curve for the Thailand's Cement Industry  

NLE Websites -- All DOE Office Websites (Extended Search)

Abstract The cement industry is one of the largest carbon dioxide (CO2) emitters in the Thai industry. The cement sector accounted for about 20633 kilotonnes (ktonnes) CO2...

184

Opportunities for Energy Efficiency and Demand Response in the California Cement Industry  

E-Print Network (OSTI)

cement plants electricity tariffs have been  structured is scheduled around an electricity tariff that incorporates electricity pricing prepared for the state of California analyzed  the response of foreign cement plants to multi? period tariffs.  

Olsen, Daniel

2012-01-01T23:59:59.000Z

185

Potential Energy Savings and CO2 Emissions Reduction of China's Cement Industry  

E-Print Network (OSTI)

2030. Three cement output projections are developed based onthese three production projections, energy savings and CO2have been a number of projections of China’s future cement

Ke, Jing

2013-01-01T23:59:59.000Z

186

Unprocessed rice husk ash as a partial replacement of cement for low-cost concrete  

E-Print Network (OSTI)

Cement is a very valuable commodity as it can be used to construct structurally sound buildings and infrastructure. However, in many developing countries cement is expensive due to the unavailability of local resources to ...

Brown, Dorothy Kamilah

2012-01-01T23:59:59.000Z

187

Long-term sealing analyses for US Strategic Petroleum Reserve (SPR) caverns  

Science Conference Proceedings (OSTI)

It is inevitable that sealing and abandonment will someday occur in a SPR cavern or caverns. To gain insight into the long-term behavior of a typical SPR cavern following sealing and abandonment, a suite of mechanical finite-element calculations was performed. The initial analyses predict how quickly and to what extent a cavern pressurizes after it is plugged. The analyses also examine the stability of the cavern as it changes shape due to the excessive pressures generated as the salt creeps and the brine in the cavern thermally expands. These large-scale analyses do not include the details of the plug but assume a good seal is established in the cavern wells. In another series of analyses, the potential for forming a leak at the plug is evaluated. A cement plug, emplaced in the casing seat of a cavern well, is loaded using the predicted brine pressures from the cavern analyses. The plugged casing analyses examine the potential for forming a leak path in and along the interfaces of salt, casing, and cement plug. In the last set of analysis, the dimensional scale of the problem is further reduced to examine a preexisting crack along a casing/salt interface. The cracked interface is assumed to be fluid filled and fully pressurized by the cavern fluids. The analyses address the potential for the fluid path to extend upwards along a plugged casing should an open microannulus surround the casing after it is plugged.

Ehgartner, B.

1994-02-01T23:59:59.000Z

188

Assessment of non-destructive testing of well casing,, cement and cement bond in high temperature wells  

DOE Green Energy (OSTI)

Because of the difficulty in bringing geothermal well blowouts under control, any indication of a casing/cement problem should be expeditiously evaluated and solved. There are currently no high temperature cement bond and casing integrity logging systems for geothermal wells with maximum temperatures in excess of 500/sup 0/F. The market is currently insufficient to warrannt the private investment necessary to develop tools and cables capable of withstanding high temperatures. It is concluded that a DOE-funded development program is required to assure that diagnostic tools are available in the interim until geothermal resource development activities are of sufficient magnitude to support developmental work on high temperature casing/cement logging capabilities by industry. This program should be similar to and complement the current DOE program for development of reservoir evaluation logging capabilities for hot wells. The appendices contain annotated bibliographies on the following: high temperature logging in general, cement integrity testing, cosing integrity testing, casing and cement failures, and special and protective treatment techniques. Also included are composite listing of references in alphabetical order by senior author.

Knutson,, C.K.; Boardman, C.R.

189

Downhole cement test in a very hot hole  

DOE Green Energy (OSTI)

Completion of the commercial-sized Hot Dry Rock Geothermal Energy Project requires that hydraulic fractures be created between two inclined wellbores at a depth of about 4 km (15,000 ft). Isolation of a section of the open wellbore is necessary for pressurization to achieve the fracture connections. A cemented-in liner/PBR assembly is one of the methods used for zone isolation near the botton of the injection well. A downhole, pumped cement test was first conducted at a wellbore temperature of 275/sup 0/C (525/sup 0/F) to determine if a suitable slurry could be designed, pumped, and later recovered to assure the success of the cemented-in liner operation.

Pettitt, R.A.; Cocks, G.G.; Dreesen, D.N.; Sims, J.R.; Nicholson, R.W.; Boevers, B.

1982-01-01T23:59:59.000Z

190

Recommended guidelines for solid fuel use in cement plants  

Science Conference Proceedings (OSTI)

Pulverized solid fuel use at cement plants in North America is universal and includes bituminous and sub-bituminous coal, petroleum coke, and any combination of these materials. Provided are guidelines for the safe use of pulverized solid fuel systems in cement plants, including discussion of the National Fire Protection Association and FM Global fire and explosion prevention standards. Addressed are fire and explosion hazards related to solid fuel use in the cement industry, fuel handling and fuel system descriptions, engineering design theory, kiln system operations, electrical equipment, instrumentation and safety interlock issues, maintenance and training, and a brief review of code issues. New technology on fire and explosion prevention including deflagration venting is also presented.

Young, G.L.; Jayaraman, H.; Tseng, H. (and others)

2007-07-01T23:59:59.000Z

191

Waste Heat Recovery in Cement Plants By Fluidized Beds  

E-Print Network (OSTI)

Not too many years ago energy costs and efficiencies were virtually ignored by corporate decision makers. The prevailing attitude was 'my business is manufacturing and my capital is best spent improving and expanding my manufacturing capacity.' With energy now contributing a significant fraction of the overall product cost in many industries, there is general recognition that control of fuel and electric costs is just as important to remaining competitive as is improving manufacturing methods. This is particularly true in the cement industry. Cement manufacture consists of mining and grinding rocks, melting them to form clinkers, then grinding those clinkers to a powder. Through recovery of waste heat and inclusion of technology such as flash calciners, the industry has reduced the fuel requirement per ton of cement from about 7 million Btu per ton in old plants to less than 3 million Btu per ton in the most modern plants.

Fraley, L. D.; Ksiao, H. K.; Thunem, C. B.

1984-01-01T23:59:59.000Z

192

Internal cathodic protection of cement-lined steel pipes  

SciTech Connect

Internally coated, cement-lined, carbon steel pipes have been used extensively for ballast- and service-water systems offshore. Mechanical cracking of the lining, undercutting, and erosion have resulted in corrosion and system leaks. Cathodic protection is one alternative that has been evaluated as a solution. Cathodic protection normally gives limited protection when applied internally to a pipeline system. Tests have been performed to evaluate this hypothesis and the possibility of improved current distribution due to the cement lining. This paper presents the test results as well as a solution to the problem. Internally coated, cement-lined steel pipes are used for ballast-water, service-water, and fire-water systems in the offshore oil and gas production industry.

Jensen, F.O. (Sharpnord Corrosion, P.O. Box 46, 3971 Langesund (NO)); Tems, R.D. (Mobil Exploration Norway, Inc., P.O. Box 510, 4001 Stavanger (NO))

1988-07-01T23:59:59.000Z

193

Potential Energy Savings and CO2 Emissions Reduction of China's Cement Industry  

E-Print Network (OSTI)

is coal-fired power generation. power generation. China Cement (10), 18-heat recovery (WHR) power generation technologies have been

Ke, Jing

2013-01-01T23:59:59.000Z

194

Opportunities for Energy Efficiency and Demand Response in the California Cement Industry  

E-Print Network (OSTI)

Waste heat recovery from exhaust gases may be used to economically cogenerate electricity at  some cement plants (

Olsen, Daniel

2012-01-01T23:59:59.000Z

195

Geological and geophysical studies of a geothermal area in the southern  

Open Energy Info (EERE)

Geological and geophysical studies of a geothermal area in the southern Geological and geophysical studies of a geothermal area in the southern Raft river valley, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Geological and geophysical studies of a geothermal area in the southern Raft river valley, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: areal geology; Cassia County Idaho; Cenozoic; clastic rocks; clasts; composition; conglomerate; economic geology; electrical methods; evolution; exploration; faults; folds; geophysical methods; geophysical surveys; geothermal energy; gravity methods; Idaho; igneous rocks; lithostratigraphy; magnetic methods; pyroclastics; Raft River Valley; resources; sedimentary rocks; seismic methods; stratigraphy; structural geology; structure; surveys; tectonics; United States; volcanic rocks

196

Identification of Concrete Incompatibilities Using Cement Paste Rheology  

E-Print Network (OSTI)

The complex interaction between cement and chemical/mineral admixtures in concrete mixtures sometimes leads to unpredictable concrete performance in the field which is generally defined as concrete incompatibilities. Cement paste rheology measurements instead of traditional workability tests (i.e., slump cone test) can have great potential in detecting those incompatibilities in concrete before the concrete is placed, which can, in turn, avoid related workability problems and setting time as well as heat evolution abnormalities. The objectives of the present study were to examine the applicability of the dynamic shear rheometer (DSR) to measure cement paste rheology, and to identify cement and mineral/chemical admixture incompatibilities, based on the determined rheological parameters. The DSR was modified and optimized for cement paste rheology measurements. Two different modes of operations (i.e., static and dynamic methods) with the modified DSR were investigated to measure representative rheological parameters as well as to identify cement and chemical/mineral admixture incompatibility. The conventional plastic viscosity and yield stress are measured in static mode and storage modulus curve, as a function of time, is measured in dynamic mode. The rate of change of plastic viscosity (RPV) as another static rheological parameter and the modeled magnitude parameter ?, from the dynamic rheological method, showed great potentialities as acceptance criteria to identify incompatible mixtures. The heat of hydration data from isothermal conduction calorimeter tests and setting time results for the studied mixtures have strongly supported the rheology based observations as supporting tools. Based on the main tests results, the acceptance criteria were set up using the rheological parameters in accordance with heat of hydration data. This will ultimately help material suppliers, concrete producers, and other users to detect problematic combinations of concrete ingredients before a given concrete mixture is placed.

Jang, Se Hoon

2009-05-01T23:59:59.000Z

197

Energy saving opportunities through heat recovery from cement processing kilns: a case study  

Science Conference Proceedings (OSTI)

This paper proposes a system for the utilization of dissipated heat from the surfaces of cement processing kilns at the Jordan Cement Factories in heating heavy fuel oil used in the burning process of these kilns. It is proposed that this can be achieved ... Keywords: Jordan, cement, energy efficiency, heat recovery, kilns

I. Al-Hinti; A. Al-Ghandoor; A. Al-Naji; M. Abu-Khashabeh; M. Joudeh; M. Al-Hattab

2008-02-01T23:59:59.000Z

198

SPE 142421 PP Cementing at High Pressure Zones in KSA Discovering Mystery behind Pipe  

E-Print Network (OSTI)

at an over-pressurized zone, the formation might be underbalanced before cement becomes strong in the sense for the cement column to be underbalanced against Formation-A before it was able to develop static gel strength in the hydrostatic pressure had likely caused the cement column to be underbalanced against Formation-A. Figure#1

Hossain, M. Enamul

199

Cement Plant EPI | ENERGY STAR Buildings & Plants  

NLE Websites -- All DOE Office Websites (Extended Search)

Cement Plant EPI Cement Plant EPI Secondary menu About us Press room Contact Us Portfolio Manager Login Facility owners and managers Existing buildings Commercial new construction Industrial energy management Small business Service providers Service and product providers Verify applications for ENERGY STAR certification Design commercial buildings Energy efficiency program administrators Commercial and industrial program sponsors Associations State and local governments Federal agencies Tools and resources Training In This Section Campaigns Commercial building design Communications resources Energy management guidance Financial resources Portfolio Manager Products and purchasing Recognition Research and reports Service and product provider (SPP) resources Success stories Target Finder Technical documentation

200

High Volume Fly Ash Blended Cements: Status Report  

Science Conference Proceedings (OSTI)

At present, the production of high-volume fly ash (HVFA) concrete involves the addition of large volumes of fly ash as a separate ingredient at a ready-mixed concrete batch plant. This necessitates additional storage silos and quality control at the job site. In order to resolve these issues, CANMET, in partnership with Electric Power Research Institute, U.S.A., undertook a major research project to develop blended cements incorporating high volumes of ASTM Class fly ash. The blended cements are made by ...

1999-10-28T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Geophysical Characterization of a Geothermal System Neal Hot Springs,  

Open Energy Info (EERE)

Characterization of a Geothermal System Neal Hot Springs, Characterization of a Geothermal System Neal Hot Springs, Oregon, USA Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geophysical Characterization of a Geothermal System Neal Hot Springs, Oregon, USA Abstract Neal Hot Springs is an active geothermal area that is also the proposed location of a binary power plant, which is being developed by US Geothermal Inc. To date, two production wells have been drilled and an injection well is in the process of being completed. The primary goal of this field camp was to provide a learning experience for students studying geophysics, but a secondary goal was to characterize the Neal Hot Springs area to provide valuable information on the flow of geothermal fluids through the subsurface. This characterization was completed using a variety of

202

Borehole geophysics evaluation of the Raft River geothermal reservoir |  

Open Energy Info (EERE)

reservoir reservoir Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Book: Borehole geophysics evaluation of the Raft River geothermal reservoir Details Activities (1) Areas (1) Regions (0) Abstract: Borehole geophysics techniques were used in evaluating the Raft River geothermal reservoir to establish a viable model for the system. The assumed model for the hot water (145/sup 0/C) reservoir was a zone of higher conductivity, increased porosity, decreased density, and lower sonic velocity. It was believed that the long term contact with the hot water would cause alteration producing these effects. With this model in mind, cross-plots of the above parameters were made to attempt to delineate the reservoir. It appears that the most meaningful data include smoothed and

203

LANL Institutes - Institute of Geophysics and Planetary Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Summer of Applied Geophysical Experience (SAGE) Summer of Applied Geophysical Experience (SAGE) Application Form A complete application includes: An on-line application Letter of Interest two (2) references (download reference form in PDF or Word format). Referee must submit by email to georgia@lanl.gov or fax to: 505-663-5225 proof of health insurance complete transcripts (unofficial is acceptable) Foreign students, please contact Georgia Sanchez at georgia@lanl.gov regarding your application. Cost is $500, $100.00 is due with the application. Please mail deposit with a copy of your application to: SAGE IGPPS, MS-T001 Los Alamos National Laboratory Los Alamos, NM 87545 USA Email: georgia@lanl.gov Voice: 505-663-5291 Note: Course credit may be possible by prior arrangement with your university (please check with your advisor) but cannot be awarded directly

204

Geophysical data fusion for subsurface imaging. Final report  

SciTech Connect

This report contains the results of a three year, three-phase project whose long-range goal has been to create a means for the more detailed and accurate definition of the near-surface (0--300 ft) geology beneath a site that had been subjected to environmental pollution. The two major areas of research and development have been: improved geophysical field data acquisition techniques; and analytical tools for providing the total integration (fusion) of all site data. The long-range goal of this project has been to mathematically, integrate the geophysical data that could be derived from multiple sensors with site geologic information and any other type of available site data, to provide a detailed characterization of thin clay layers and geological discontinuities at hazardous waste sites.

NONE

1995-10-01T23:59:59.000Z

205

Regional geology and geophysics of the Jemez Mountains  

DOE Green Energy (OSTI)

The western margin of the Rocky Mountain tectonic belt is the initial site for the Los Alamos Geothermal Project. lgneous activity in the area culminated with the formation of a collapsed volcanic caldera and the deposition of thick beds of tuff. Geophysical studies indicate that the region is one of relatively highterrestrial heat flow, low-crustal density, low-crustal seismic velocities, low-crustal magnetoelectric impedance, and thin crust. 34 references. (auth)

West, F.G.

1973-08-01T23:59:59.000Z

206

Geophysics-based method of locating a stationary earth object  

DOE Patents (OSTI)

A geophysics-based method for determining the position of a stationary earth object uses the periodic changes in the gravity vector of the earth caused by the sun- and moon-orbits. Because the local gravity field is highly irregular over a global scale, a model of local tidal accelerations can be compared to actual accelerometer measurements to determine the latitude and longitude of the stationary object.

Daily, Michael R. (Albuquerque, NM); Rohde, Steven B. (Corrales, NM); Novak, James L. (Albuquerque, NM)

2008-05-20T23:59:59.000Z

207

Geophysical Fluid Dynamics Laboratory Portal | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Geophysical Fluid Dynamics Laboratory Portal Geophysical Fluid Dynamics Laboratory Portal Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Geophysical Fluid Dynamics Laboratory Portal Dataset Summary Description Output and documentation from a set of multi-century experiments performed using NOAA/GFDL's climate models. Users can download files, display data file attributes, and graphically display the data. Data sets include those from CM2.X experiments associated with the Intergovernmental Panel on Climate Change Assessment Report (IPCC) and the US Climate Change Science Program (US CCSP). Tags {climate,IPCC,CCSP,pressure,SLP," sea ice","upper-level winds",ozone,"meridional winds","zonal winds",u-wind,v-wind," carbon dioxide"," volcanic",aerosol,grids,"soil moisture"," IPCC",flux,"radiation flux",thickness,radiation,emissivity,longwave,sensible,"latent heat",downwelling,upwelling,temperature,convective,runoff,"water vapor",humidity,cloudiness,transport,"geopotential height",assimilation,salinity,evaporation,freshwater}

208

More durable roof coverings such as steel and fiber cement  

E-Print Network (OSTI)

- heating equipment saves money. Tankless water heaters provide hot water on demand at a preset temperature. Lighter colors absorb less heat, reducing cooling costs in warm climates. Now, solar roofing products- cement siding is termite- and water-resistant and warrantied to last 50 years. Increasing the amount

209

Study of composite cement containing burned oil shale  

E-Print Network (OSTI)

Study of composite cement containing burned oil shale Julien Ston Supervisors : Prof. Karen properties. SCMs can be by-products from various industries or of natural origin, such as shale. Oil shale correctly, give a material with some cementitious properties known as burned oil shale (BOS). This study

Dalang, Robert C.

210

EEG analyses with SOBI.  

SciTech Connect

The motivating vision behind Sandia's MENTOR/PAL LDRD project has been that of systems which use real-time psychophysiological data to support and enhance human performance, both individually and of groups. Relevant and significant psychophysiological data being a necessary prerequisite to such systems, this LDRD has focused on identifying and refining such signals. The project has focused in particular on EEG (electroencephalogram) data as a promising candidate signal because it (potentially) provides a broad window on brain activity with relatively low cost and logistical constraints. We report here on two analyses performed on EEG data collected in this project using the SOBI (Second Order Blind Identification) algorithm to identify two independent sources of brain activity: one in the frontal lobe and one in the occipital. The first study looks at directional influences between the two components, while the second study looks at inferring gender based upon the frontal component.

Glickman, Matthew R.; Tang, Akaysha (University of New Mexico, Albuquerque, NM)

2009-02-01T23:59:59.000Z

211

Contact Mechanics Based Mechanical Characterization of Portland Cement Paste  

E-Print Network (OSTI)

Current research interest in multi-scale modeling of cement paste requires accurate characterization of the time-dependent mechanical properties of the material, particularly the C-S-H phase. Nanoindentation is evaluated as a tool for measuring both the instantaneous and the short-term viscoelastic properties of cement paste. Atomic force microscopy (AFM) based indentation is compared to conventional nanoindentaion in measuring mechanical properties of cement pastes. Time-dependent solutions are derived to characterize creep indentation tests performed on hardened cement paste and to extract the time-dependent properties. The effect of approximating C-S-H viscoelastic properties with a time-independent Poisson's ratio is discussed, and arguments for utilizing a time-independent Poisson's ratio for short-term response are presented. In evaluating AFM as a mechanical characterization tool, various analytical and numerical modeling approaches are compared. The disparities between the numerical self-consistent approach and analytical solutions are determined and reported. The measured elastic Young's modulus values acquired by AFM indentation tests are compared to Young's modulus values from nanoindentation measurements from cement paste. These results show that the calcium silicate hydrate (C-S-H) phase of hydrated portland cement has different properties on the nanometric scale than on the micron scale. Packing density of C-S-H particles is proposed as an explanation for the disparity in the measured results. The AFM measured uniaxial viscoelastic compliance values are compared to similar values obtained with traditional nanoindentation for the same material. The comparison of these results shows that the calcium silicate hydrate (C-S-H) phase of portland cement has similar but distinct properties on the sub micron scale than on the micron scale. Additionally, the effect of moisture is evaluated by controlling the relative humidity (RH) of the testing environment between 40% and 100% plus, or wet. The viscoelastic compliance appears to be highest at 40% RH and the material appears to be less compliant at higher relative humidity levels. Possible mechanisms controlling the viscoelastic deformation are presented and evaluated in conjunction with the moisture related poromechanical effect.

Jones, Christopher

2011-12-01T23:59:59.000Z

212

An Integrated Model For The Geothermal Field Of Milos From Geophysical  

Open Energy Info (EERE)

Milos From Geophysical Milos From Geophysical Experiments Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Integrated Model For The Geothermal Field Of Milos From Geophysical Experiments Details Activities (0) Areas (0) Regions (0) Abstract: The results of geophysical experiments carried out by eight teams on the island of Milos as part of an integrated project under the European Commission's geothermal R & D programme are considered. The combination of these data with earlier studies on the geology and geophysics of Milos allow the compilation of a possible model of the geothermal reservoir and its surroundings in the central eastern part of the island. The reservoir is fed by convection of hot fluids from a depth of several kilometres, but the geophysical data provide no strong support for the earlier hypothesis

213

Opportunities for Energy Efficiency and Demand Response in the California Cement Industry  

Science Conference Proceedings (OSTI)

This study examines the characteristics of cement plants and their ability to shed or shift load to participate in demand response (DR). Relevant factors investigated include the various equipment and processes used to make cement, the operational limitations cement plants are subject to, and the quantities and sources of energy used in the cement-making process. Opportunities for energy efficiency improvements are also reviewed. The results suggest that cement plants are good candidates for DR participation. The cement industry consumes over 400 trillion Btu of energy annually in the United States, and consumes over 150 MW of electricity in California alone. The chemical reactions required to make cement occur only in the cement kiln, and intermediate products are routinely stored between processing stages without negative effects. Cement plants also operate continuously for months at a time between shutdowns, allowing flexibility in operational scheduling. In addition, several examples of cement plants altering their electricity consumption based on utility incentives are discussed. Further study is needed to determine the practical potential for automated demand response (Auto-DR) and to investigate the magnitude and shape of achievable sheds and shifts.

Olsen, Daniel; Goli, Sasank; Faulkner, David; McKane, Aimee

2010-12-22T23:59:59.000Z

214

Institute of Geophysics and Planetary Physics 1993 annual report, October 1, 1992--September 30, 1993  

Science Conference Proceedings (OSTI)

This report contains brief papers on the research being conducted at the Institute of Geophysics and Planetary Physics in 1993 in Geosciences, High-Pressure sciences, and Astrophysics.

Ryerson, F.J.; Budwine, C.M. [eds.

1994-06-15T23:59:59.000Z

215

An Integrated Model For The Geothermal Field Of Milos From Geophysical...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon An Integrated Model For The Geothermal Field Of Milos From Geophysical Experiments Jump to:...

216

At quadrennial geophysics fest, earth scientists think globally  

Science Conference Proceedings (OSTI)

This article focuses on two areas of current research interest from the International Union of Geodesy and Geophysics meeting in July 1995. The first is the possible long and unlikely seeming change of connections. Linked are the warm surface of the tropical Pacific Ocean, the atmosphere at the midlatitudes in the Southern Hemisphere and the icy stratosphere over Antarctica where the warming of the sea surface 15 years ago may have set the stage for the Antarctic ozone hole. The second major research research reviewed concerned increases in ultraviolet light. Surface radiation in the DNA-damaging region of the spectrum is increasing by as much as 12% per decade at high latitudes.

Kerr, R.A.

1995-07-28T23:59:59.000Z

217

Carbon emissions reductions for a specific new cement plant:  

NLE Websites -- All DOE Office Websites (Extended Search)

5346 5346 Evaluating Clean Development Mechanism Projects in the Cement Industry Using a Process-Step Benchmarking Approach Michael Ruth, Ernst Worrell, and Lynn Price Energy Analysis Department Environmental Energy Technologies Division Ernest Orlando Lawrence Berkeley National Laboratory University of California Berkeley, California 94720 July 2000 This work was supported by the Climate Policies and Program Division, Office of Policy, Planning, and Evaluation, U.S. Environmental Protection Agency through the U.S. Department of Energy under Contract No. DE-AC03-76SF00098 ii iii Evaluating Clean Development Mechanism Projects in the Cement Industry Using a Process-Step Benchmarking Approach Michael Ruth, Ernst Worrell, and Lynn Price Energy Analysis Department Environmental Energy Technologies Division

218

Climate VISION: Private Sector Initiatives: Cement: Resources and Links -  

Office of Scientific and Technical Information (OSTI)

Federal/State Programs Federal/State Programs DOE Industrial Materials of the Future Industrial Materials for the Future (IMF) is a crosscutting activity of the Industrial Technologies Program. The mission of IMF is to lead a national effort to research, design, develop, engineer, and test new and improved materials, for the Industries of the Future. ENERGY STAR Focus for Cement Manufacturing The U.S. cement manufacturers and EPA work together in an ENERGY STAR Focus on energy efficiency within the industry. Participating companies work with EPA to institute or improve their corporate energy management programs and the energy performance of their operations. Through ENERGY STAR, EPA provides tools to gauge plant and program energy performance, a forum for elevating energy management in the industry, and recognition for superior

219

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

Science Conference Proceedings (OSTI)

China's cement industry, which produced 1,388 million metric tons (Mt) of cement in 2008, accounts for almost half of the world's total cement production. Nearly 40% of China's cement production is from relatively obsolete vertical shaft kiln (VSK) cement plants, with the remainder from more modern rotary kiln cement plants, including plants equipped with new suspension pre-heater and pre-calciner (NSP) kilns. Shandong Province is the largest cement-producing Province in China, producing 10% of China's total cement output in 2008. This report documents an analysis of the potential to improve the energy efficiency of NSP kiln cement plants in Shandong Province. Sixteen NSP kiln cement plants were surveyed regarding their cement production, energy consumption, and current adoption of 34 energy-efficient technologies and measures. Plant energy use was compared to both domestic (Chinese) and international best practice using the Benchmarking and Energy Saving Tool for Cement (BEST-Cement). This benchmarking exercise indicated an average technical potential primary energy savings of 12% would be possible if the surveyed plants operated at domestic best practice levels in terms of energy use per ton of cement produced. Average technical potential primary energy savings of 23% would be realized if the plants operated at international best practice levels. Energy conservation supply curves for both fuel and electricity savings were then constructed for the 16 surveyed plants. Using the bottom-up electricity conservation supply curve model, the cost-effective electricity efficiency potential for the studied cement plants in 2008 is estimated to be 373 gigawatt hours (GWh), which accounts for 16% of total electricity use in the 16 surveyed cement plants in 2008. Total technical electricity-saving potential is 915 GWh, which accounts for 40% of total electricity use in the studied plants in 2008. The fuel conservation supply curve model shows the total technical fuel efficiency potential equal to 7,949 terajoules (TJ), accounting for 8% of total fuel used in the studied cement plants in 2008. All the fuel efficiency potential is shown to be cost effective. Carbon dioxide (CO{sub 2}) emission reduction potential associated with cost-effective electricity saving is 383 kiloton (kt) CO{sub 2}, while total technical potential for CO{sub 2} emission reduction from electricity-saving is 940 ktCO{sub 2}. The CO{sub 2} emission reduction potentials associated with fuel-saving potentials is 950 ktCO{sub 2}.

Price, Lynn; Hasanbeigi, Ali; Lu, Hongyou; Wang, Lan

2009-10-01T23:59:59.000Z

220

Polymer-cement geothermal-well-completion materials. Final report  

DOE Green Energy (OSTI)

A program to develop high-temperature polymer cements was performed. Several formulations based on organic and semi-inorganic binders were evaluated on the basis of mechanical and thermal stability, and thickening time. Two optimized systems exhibited properties exceeding those required for use in geothermal wells. Both systems were selected for continued evaluation at the National Bureau of Standards and contingent upon the results, for field testing in geothermal wells.

Zeldin, A.N.; Kukacka, L.E.

1980-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Heat or cold storage composition containing a hydrated hydraulic cement  

SciTech Connect

A polyphase composition for the storage of heat or cold is disclosed that utlizes the latent heat of fusion of a salt hydrate continuous phase intimately intermixed with a hydrated hydraulic cement continuous phase and wherein said continuous phases are optionally in contact with a discontinuous crystalline phase comprising a nucleating component and wherein the composition is enveloped, contained, or packaged within a vapor impermeable material.

Boardman, B.J.

1981-07-07T23:59:59.000Z

222

Immobilization of heavy metals by calcium sulfoaluminate cement  

Science Conference Proceedings (OSTI)

Two types of calcium sulfoaluminate cement containing 20% and 30% phosphogypsum, respectively, were investigated for their ability in hazardous waste stabilization. Fourteen series of pastes were prepared, each containing the following soluble salt: Na{sub 2}CrO{sub 4}.4H{sub 2}O; Na{sub 2}Cr{sub 2}O{sub 7}.2H{sub 2}O; CrCl{sub 3}.6H{sub 2}O; Pb(NO{sub 3}){sub 2}; Zn(NO{sub 3}){sub 2}.6H{sub 2}O; ZnSO{sub 4}.7H{sub 2}O; and CdCl{sub 2}.5H2O. The level of pollution was 0.069 mol of heavy metal per Kg of cement. The study has been carried out by means of X-ray diffraction, thermal analysis, scanning electron microscopy, mercury intrusion porosimetry, electrical conductivity, and leaching tests. Very good retention of lead, cadmium, zinc and trivalent chromium is observed. The retention of hexavalent chromium depends upon the nature of the binder: the cement containing 20% gypsum develops the best behaviour. This is explained by the microstructure of the hydrated paste: in the paste containing 30% gypsum, delayed ettringite precipitates and damages the hardened paste.

Peysson, S. [Unite de Recherche en Genie Civil-MATERIAUX, Institut National des Sciences Appliquees de Lyon, Domaine Scientifique de la Doua, Batiment J. Tuset, 12, Avenue des Arts, 69 621 Villeurbanne Cedex (France); Pera, J. [Unite de Recherche en Genie Civil-MATERIAUX, Institut National des Sciences Appliquees de Lyon, Domaine Scientifique de la Doua, Batiment J. Tuset, 12, Avenue des Arts, 69 621 Villeurbanne Cedex (France)]. E-mail: Jean.Pera@insa-lyon.fr; Chabannet, M. [Unite de Recherche en Genie Civil-MATERIAUX, Institut National des Sciences Appliquees de Lyon, Domaine Scientifique de la Doua, Batiment J. Tuset, 12, Avenue des Arts, 69 621 Villeurbanne Cedex (France)

2005-12-15T23:59:59.000Z

223

Modelling and simulation of acrylic bone cement injection and curing within the framework of vertebroplasty  

E-Print Network (OSTI)

The minimal invasive procedure of vertebroplasty is a surgical technique to treat compression fractures of vertebral bodies. During the treatment liquid bone cement gets injected into the affected vertebral body and therein cures to a solid. In order to investigate the treatment and the impact of injected bone cement on the vertebra, an integrated modelling and simulation framework has been developed. The framework includes (i) the generation of computer models based on microCT images of human cancellous bone, (ii) CFD simulations of bone cement injection into the trabecular structure of a vertebral body as well as (iii) non-linear FEM simulations of the bone cement curing. Thereby, microstructural models of trabecular bone structures are employed. Furthermore, a detailed description of the material behaviour of acrylic bone cements is provided. More precisely, a non-linear fluid flow model is chosen for the representation of the bone cement behaviour during injection and a non-linear viscoelastic material mo...

Landgraf, Ralf; Kolmeder, Sebastian; Lion, Alexander; Lebsack, Helena; Kober, Cornelia

2013-01-01T23:59:59.000Z

224

Computerized coal-quality prediction from digital geophysical logs  

SciTech Connect

A digital suite of geophysical logs, including gamma-ray, resistivity and gamma-gamma density, were used to develop and test a method for predicting coal quality parameters for the Wyodak coal in the Powder River basin of Wyoming. The method was developed by plotting the average of various log response increments (obtained from the contractor's 9-track digital tapes) versus the analytically determined ash, moisture, and Btu/lb for the same intervals of the coal seam. Standard curve-fitting techniques were then employed to determine which log response parameter most accurately predicted the various quality parameters. A computer program was written that reads 9-track, digital, log tapes and determines the coal quality parameters based on the relationships between log response and analytical values. The computer program was written in Fortran 77 for a VAX 11/780 minicomputer. The program was designed to run interactively with user-determined options depending on which geophysical logs were available. Preliminary results have been very encouraging to date with predicted versus analytically determined parameters being estimated to an accuracy of +/-300 Btu/lb (with the average being +/-150 Btu/lb), +/-2% ash and +/-3% moisture. This compares to ASTM lab-to-lab analytical standards of +/-100 Btu/lb, +/-0.7% ash, and +/-0.5% moisture. This prediction methods is applicable to coals from other basins and offers promise as a cost saving tool for exploration and production uses.

Nations, D.L.; Tabet, D.E.; Gerould, C.R.

1984-07-01T23:59:59.000Z

225

Hydrothermal cements for use in the completion of geothermal wells. Final report  

DOE Green Energy (OSTI)

A research program to develop an improved cement for use in high-temperature geothermal wells was carried out. The work involved in the selection and evaluation of an aluminum hydroxide-cured cement from the SwRI family of hydrothermal cements for this use are described. The physical testing program is described; the topics discussed include placement ability, compressive and bond strengths, permeability to water, compatibility to drilling muds, corrosion properties, and thermal properties.

Not Available

1979-09-01T23:59:59.000Z

226

Localization of shallow gas deposits and uncontrolled gas flows in young and unconsolidated sediments by geophysical methods  

SciTech Connect

The great mass of Neogene sediments in the Hungarian basin, where several hydrocarbon accumulations are known, is affected by Pliocene strike-slip movements, resulting in many [open quotes]flower structures.[close quotes] The gas may migrate from the reservoirs upward to the surface along the faults. Thus, shallow gas deposits can be located in the young, unconsolidated sands. There are also several shallow gas deposits derived from uncontrolled gas flows. In Hungary, the shallow gas reservoirs, which are small but increasingly important, have not yet been explored properly. However, the depleting gas may pollute the water in the soil as well as cause explosions. Our purpose is to develop inexpensive, complete, and highly sophisticated field- and data-processing techniques and an integrated complex of geophysical methods in order to define the limits of shallow gas deposits. To avoid anomalous behavior on seismic sections of the depleting gas, we started from uncontrolled gas flows which require special velocity and amplitude vs. offset analyses. In addition, natural and controlled source electromagnetic/electric surveys with various parameters were applied. An industrial-scale seismic section over an uncontrolled gas flow, special sections over flower structures and geoelectric sections, and a magnetic map are presented. The integrated complex of geophysical methods outlined above is being developed in order to establish the conditions for the exploration of gas reservoirs which have been used close to their locality and which could be recovered inexpensively.

Csoergei, J.; Kummer, I.; Papa, A.; Sipos, J.; Solyom, I.; Takacs, E.; Timar, Z. (Eotvos Lorand Geophysical Institute of Hungary, Budapest (Hungary)); Keresztes, T. (MOL RT, Budapest (Hungary))

1993-09-01T23:59:59.000Z

227

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

of Demonstrated Energy Technologies (CADDET), Internationaland MAIN. 1993. Energy Technology in the Cement IndustrialAugust 19, 2009. Energy Technology Support Unit (ETSU).

Price, Lynn

2010-01-01T23:59:59.000Z

228

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

is used as the electricity price in electricity conservationof energy. Since average electricity prices and average fuelECSC) with average electricity price for studied cement

Price, Lynn

2010-01-01T23:59:59.000Z

229

Policy Options for Encouraging Energy Efficiency Best Practices in Shandong Province's Cement Industry  

E-Print Network (OSTI)

and 2010. Statistics on Energy Consumption Per Unit of GDP.8 S HANDONG CEMENT SECTOR ENERGY CONSUMPTION AND CARBON11 Shandong energy consumption and

Price, Lynn

2013-01-01T23:59:59.000Z

230

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

Banerjee, R. , 2005. Energy Efficiency and Demand SideKiln Systems,” Energy Efficiency in the Cement Industry (Ed.of Industrial Energy Efficiency Measures,” Proceedings of

Price, Lynn

2010-01-01T23:59:59.000Z

231

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

Banerjee, R. , 2005. Energy Efficiency and Demand SideKiln Systems,” Energy Efficiency in the Cement Industry (Ed.for Improving Energy Efficiency, Reducing Pollution and

Price, Lynn

2010-01-01T23:59:59.000Z

232

Promoting Energy Efficiency in Cement Making: The ENERGY STAR(R) for Industry Program  

E-Print Network (OSTI)

industry. For information Energy Guide for Cement Making,Bureau, and (2) the Energy Guide, which discusses a wideair system efficiency. The Energy Guides are researched and

Masanet, Eric; Worrell, Ernst

2007-01-01T23:59:59.000Z

233

A case study of ultralightweight cementing practices in the Northeastern United States  

SciTech Connect

Wells in the northeastern United States are generally drilled to a depth of from 3,000 to 6,000 ft. They are usually air drilled through several incompetent formations among which are the Marcellus and Coffee shales. Completions in this area are hampered by very low fracture gradients of 0.4 to 0.6 psi/ft, with most of the formations containing a large number of natural fractures. During cementing, pressures in excess of 1,100-psi hydrostatic can result in breakdown of the formation leading to incomplete fillup on the cement job. This paper will discuss the existing completion practices in this area, which include the use of multistage cementing, and the incorporation of cementing baskets and other downhole tools. The current cement systems in use and the problems encountered in using them will also be discussed. Several case histories of new cementing techniques, using ultralightweight foam-cementing systems, will be presented along with the job design used on these wells. Bond logging of the foam-cemented wells creates an array of special problems for the logging companies, due to the ultra-low densities and the high porosities of these special cementing systems. Newly developed techniques for logging these wells will be discussed, along with the bond logs from the case histories.

Edmondson, T.D.; Benge, O.G.

1983-11-01T23:59:59.000Z

234

Measuring Improvement in the Energy Performance of the U.S. Cement...  

NLE Websites -- All DOE Office Websites (Extended Search)

Improvement in the Energy Performance of the U.S. Cement Industry This paper from Duke University focuses primarily on the development of an updated ENERGY STAR industrial...

235

Production of Ordinary Portland Cement(OPC) from NALCO Red Mud  

Science Conference Proceedings (OSTI)

... of Ordinary Portland Cement(OPC) from NALCO Red Mud has been successfully developed from a raw mix containing limestone, red mud,shale and fine coal.

236

Analysis of Energy-Efficiency Opportunities for the Cement Industry in Shandong Province, China  

E-Print Network (OSTI)

Gomes, A. S. 1990. “Energy Saving and Environmental ImpactEnergy Consumption and Energy Saving Potential,” ProceedingsBirch, E. 1990. “Energy Savings in Cement Kiln Systems,”

Price, Lynn

2010-01-01T23:59:59.000Z

237

A heuristic algorithm for pattern identification in large multivariate analysis of geophysical data sets  

Science Conference Proceedings (OSTI)

This paper aims to present a heuristic algorithm with factor analysis and a local search optimization system for pattern identification problems as applied to large and multivariate aero-geophysical data. The algorithm was developed in MATLAB code using ... Keywords: Aero-geophysical data, Factor analysis, Local search system, MATLAB program, Patterns identification

João Eduardo da Silva Pereira; Adelir José Strieder; Janete Pereira Amador; José Luiz Silvério da Silva; Leônidas Luiz Volcato Descovi Filho

2010-01-01T23:59:59.000Z

238

CV-Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex, Louisiana  

E-Print Network (OSTI)

chemistry & Stable isotopes Postdoc 1998-2001 APPOINTMENTS 2012- Professor in Geology and Geophysics Geology and Earth System History for undergraduate students; Stable Isotope Geochemistry and Carbonate1 CV- Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex

Bao, Huiming

239

CV-Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex, Louisiana  

E-Print Network (OSTI)

isotopes Postdoc 1998-2001 APPOINTMENTS 2007- Associate professor in Geology and Geophysics, Louisiana Physical Geology and Earth System History for undergraduate students; Stable Isotope Geochemistry1 CV- Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex

Bao, Huiming

240

Energy Analyses | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Science & Innovation » Clean Coal » Crosscutting Research » Science & Innovation » Clean Coal » Crosscutting Research » Energy Analyses Energy Analyses The Office of Fossil Energy conducts energy analyses to assess the economics of advanced process concepts in support of near-zero emissions power plants. Environmental Activities. These analyses include the potential impact on health and climate change of particulates and linkages to fossil fuel use, barriers to and environmental impacts of large-scale deployment of carbon capture, utilization and storage (CCUS) technologies, and life cycle environmental emissions analysis for existing and advanced fossil fuel technologies. Technical and Economic Analyses. Analyses in this area crosscuts all Fossil Energy programs and supports multi-year program and strategic planning

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Laboratory Measurement of Geophysical Properties for Monitoring of CO2 Sequestration  

NLE Websites -- All DOE Office Websites (Extended Search)

Laboratory Measurement of Geophysical Properties for Monitoring of Laboratory Measurement of Geophysical Properties for Monitoring of CO 2 Sequestration Larry R. Myer (LRMyer@lbl.gov; 510/486-6456) Lawrence Berkeley National Laboratory Earth Science Division One Cyclotron Road, MS 90-1116 Berkeley, CA 94720 Introduction Geophysical techniques will be used in monitoring of geologic sequestration projects. Seismic and electrical geophysical techniques will be used to map the movement of CO 2 in the subsurface and to establish that the storage volume is being efficiently utilized and the CO 2 is being safely contained within a known region. Rock physics measurements are required for interpretation of the geophysical surveys. Seismic surveys map the subsurface velocities and attenuation while electrical surveys map the conductivity. Laboratory measurements are required to convert field

242

Geophysical logging case history of the Raft River geothermal system, Idaho  

Open Energy Info (EERE)

Geophysical logging case history of the Raft River geothermal system, Idaho Geophysical logging case history of the Raft River geothermal system, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Geophysical logging case history of the Raft River geothermal system, Idaho Details Activities (1) Areas (1) Regions (0) Abstract: Drilling to evaluate the geothermal resource in the Raft River Valley began in 1974 and resulted in the discovery of a geothermal reservoir at a depth of approximately 1523 m (500 ft). Several organizations and companies have been involved in the geophysical logging program. There is no comprehensive report on the geophysical logging, nor has there been a complete interpretation. The objectives of this study are to make an integrated interpretation of the available data and compile a case history. Emphasis has been on developing a simple interpretation

243

A Geothermal Field Model Based On Geophysical And Thermal Prospectings In  

Open Energy Info (EERE)

Model Based On Geophysical And Thermal Prospectings In Model Based On Geophysical And Thermal Prospectings In Nea Kessani (Ne Greece) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Geothermal Field Model Based On Geophysical And Thermal Prospectings In Nea Kessani (Ne Greece) Details Activities (0) Areas (0) Regions (0) Abstract: The present study completes a study by Thanassoulas et al. (1986) Geophys. Prosp.34, 83-97 and deals with geophysical exploration for geothermal resources in Nea Kessani area, NE Greece. The results of some deep electrical soundings (AB = 6000 m) with the interpretation of a gravity profile crossing the investigated area are considered together with thermal investigations. All subsequent information, along with the conclusions of an earlier paper dealing with a reconnaissance geophysical

244

Imaging Wellbore Cement Degradation by Carbon Dioxide under Geologic Sequestration Conditions Using X?ray Computed Microtomography  

Science Conference Proceedings (OSTI)

ABSTRACT: X-ray microtomography (XMT), a nondestructive three-dimensional imaging technique, was applied to demonstrate its capability to visualize the mineralogical alteration and microstructure changes in hydrated Portland cement exposed to carbon dioxide under geologic sequestration conditions. Steel coupons and basalt fragments were added to the cement paste in order to simulate cement-steel and cement-rock interfaces. XMT image analysis showed the changes of material density and porosity in the degradation front (density: 1.98 g/cm3, porosity: 40%) and the carbonated zone (density: 2.27 g/cm3, porosity: 23%) after reaction with CO2- saturated water for 5 months compared to unaltered cement (density: 2.15 g/cm3, porosity: 30%). Three-dimensional XMT imaging was capable of displaying spatially heterogeneous alteration in cement pores, calcium carbonate precipitation in cement cracks, and preferential cement alteration along the cement-steel and cement-rock interfaces. This result also indicates that the interface between cement and host rock or steel casing is likely more vulnerable to a CO2 attack than the cement matrix in a wellbore environment. It is shown here that XMT imaging can potentially provide a new insight into the physical and chemical degradation of wellbore cement by CO2 leakage.

Jung, Hun Bok; Jansik, Danielle P.; Um, Wooyong

2013-01-01T23:59:59.000Z

245

Proton Range Uncertainty Due to Bone Cement Injected Into the Vertebra in Radiation Therapy Planning  

Science Conference Proceedings (OSTI)

We wanted to evaluate the influence of bone cement on the proton range and to derive a conversion factor predicting the range shift by correcting distorted computed tomography (CT) data as a reference to determine whether the correction is needed. Two CT datasets were obtained with and without a bone cement disk placed in a water phantom. Treatment planning was performed on a set of uncorrected CT images with the bone cement disk, and the verification plan was applied to the same set of CT images with an effective CT number for the bone cement disk. The effective CT number was determined by measuring the actual proton range with the bone cement disk. The effects of CT number, thicknesses, and position of bone cement on the proton range were evaluated in the treatment planning system (TPS) to draw a conversion factor predicting the range shift by correcting the CT number of bone cement. The effective CT number of bone cement was 260 Hounsfield units (HU). The calculated proton range for native CT data was significantly shorter than the measured proton range. However, the calculated range for the corrected CT data with the effective CT number coincided exactly with the measured range. The conversion factor was 209.6 [HU . cm/mm] for bone cement and predicted the range shift by approximately correcting the CT number. We found that the heterogeneity of bone cement could cause incorrect proton ranges in treatment plans using CT images. With an effective CT number of bone cement derived from the proton range and relative stopping power, a more actual proton range could be calculated in the TPS. The conversion factor could predict the necessity for CT data correction with sufficient accuracy.

Lim, Young Kyung [Department of Radiation Oncology, Institute of Health Sciences, Gyeongsang National University, Jinju (Korea, Republic of); Hwang, Ui-Jung [Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi (Korea, Republic of); Shin, Dongho, E-mail: dongho@ncc.re.kr [Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi (Korea, Republic of); Kim, Dong Wook [Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi (Korea, Republic of); Kwak, Jungwon [Department of Radiation Oncology, Asan Medical Center, Seoul (Korea, Republic of); Yoon, Myonggeun; Lee, Doo Hyun; Lee, Se Byeong; Lee, Sang-Yeob [Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi (Korea, Republic of); Park, Sung Yong [Department of Radiation Oncology, Samsung Medical Center, Seoul (Korea, Republic of); Pyo, Hong Ryeol [Department of Radiation Oncology, Institute of Health Sciences, Gyeongsang National University, Jinju (Korea, Republic of); Proton Therapy Center, National Cancer Center, Goyang, Gyeonggi (Korea, Republic of); Department of Radiation Oncology, Asan Medical Center, Seoul (Korea, Republic of); Department of Radiation Oncology, Samsung Medical Center, Seoul (Korea, Republic of)

2011-10-01T23:59:59.000Z

246

Geophysical Studies in the Vicinity of Blue Mountain and Pumpernickel  

Open Energy Info (EERE)

the Vicinity of Blue Mountain and Pumpernickel the Vicinity of Blue Mountain and Pumpernickel Valley near Winnemucca, North-Central Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geophysical Studies in the Vicinity of Blue Mountain and Pumpernickel Valley near Winnemucca, North-Central Nevada Abstract From May 2008 to September 2009, the U.S. Geological Survey (USGS) collected data from more than 660 gravity stations, 100 line-km of truck-towed magnetometer traverses, and 260 physical-property sites in the vicinity of Blue Mountain and Pumpernickel Valley, northern Nevada (fig. 1). Gravity, magnetic, and physical-property data were collected to study regional crustal structures as an aid to understanding the geologic framework of the Blue Mountain and Pumpernickel Valley areas, which in

247

LANL Institutes - Institute of Geophysics and Planetary Physics  

NLE Websites -- All DOE Office Websites (Extended Search)

Expanding the Frontiers of Astrophysical, Space, Earth, & Climate Sciences & Their Signatures The Institute of Geophysics, Planetary Physics, and Signatures at Los Alamos National Laboratory is committed to promoting and supporting high quality, cutting-edge science in the areas of astrophysics, space physics, solid planetary geoscience, and climate science. These subject areas are selected based on their breadth of scientific challenges facing the international scientific community, as well as relevance to the strategic objective to extend Laboratory scientific excellence. IGPPS/LANL makes a special effort to promote and support new research ideas, which can be further developed through seed funding into major programs supported by federal or other funding sources. IGPPS also supports

248

Geophysical investigation: New Production Reactor Complex, Idaho National Engineering Laboratory  

Science Conference Proceedings (OSTI)

Seismic crosshole and downhole velocity measurements were performed for two borehole arrays approximately 300 feet deep in conjunction with verticality measurements and geophysical logging of borehole WO-2 (to a depth of 4,960 feet) at the NPR site of the INEL. Past studies show that the site area is covered by a thin layer of soil which overlies numerous basalt flows interrupted by sandy and clayey interbeds. Compressional and shear wave velocities computed for these arrays revealed low velocity zones at the following elevation ranges for crosshole array No. 1: 4,893 feet to 4,873 feet (basalt rubble zone) and 4,705 feet to 4,686 feet (sediment interbed). Corresponding elevation ranges for crosshole array No. 2 include: 4,830 feet to 4,815 feet (sediment interbed), 4,785 feet to 4,765 feet (highly vesicular and fractured basalt), 4,715 feet to 4,705 feet (basalt rubble zone), and 4,672 feet to 4,667 feet (sediment interbed). In general, crosshole velocity data correlated between arrays with velocity differences possibly explained by localized lithologic changes. Due to scatter in the downhole velocity data, only velocity averages were computed. However, these downhole velocities correlated to the approximate mean crosshole velocity values and therefore independent confirmed the crosshole data. Geophysical logging of well WO-2 included natural gamma, neutron, and compensated density logs to a depth of 4,960 feet at which a viscous borehole fluid inhibited further investigation. Second runs of small sections of these logs were repeated satisfactorily for confirmation of certain anomalous areas.

Filipkowski, F.; Blackey, M.; Davies, D.; Levine, E.N.; Murphy, V. [Weston Geophysical Corp., Westboro, MA (US)

1991-12-01T23:59:59.000Z

249

Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network (OSTI)

PCA), 1980. “1979 Energy Report U.S. Portland CementCement Industry, An Energy Perspective", U.S. Department of1994). Energy Information Admininstration, U.S. Department

Worrell, Ernst

2008-01-01T23:59:59.000Z

250

Sulfur polymer cement for macroencapsulation of mixed waste debris  

SciTech Connect

In FY 1997, the US DOE Mixed Waste Focus Area (MWFA) sponsored a demonstration of the macroencapsulation of mixed waste debris using sulfur polymer cement (SPC). Two mixed wastes were tested--a D006 waste comprised of sheets of cadmium and a D008/D009 waste comprised of lead pipes and joints contaminated with mercury. The demonstration was successful in rendering these wastes compliant with Land Disposal Restrictions (LDR), thereby eliminating one Mixed Waste Inventory Report (MWIR) waste stream from the national inventory.

Mattus, C.H.

1998-06-01T23:59:59.000Z

251

Comparison of proton field-cycling relaxometry and molecular dynamics simulations for protonwater surface dynamics in cement-based materials  

E-Print Network (OSTI)

. / Cement and Concrete Research 37 (2007) 348­350 #12;Acknowledgements JPK and PJM thank the NANOCEM

Kalinichev, Andrey G.

252

Use of High-Calcium Fly Ash in Cement-Based Construction Materials  

E-Print Network (OSTI)

in blended cements with minimum (less than 10%) portland cement in the blend. Keywords: Fly ash; concrete impact assessments. INTRODUCTION #12;3 Coal is the most widely used source of energy for power production, total coal ash production in the world was estimated to be 600 million tons, of which 100 million tons

Wisconsin-Milwaukee, University of

253

Portland cement for SO.sub.2 control in coal-fired power plants  

DOE Patents (OSTI)

There is described a method of removing oxides of sulfur from the emissions of fossil fuel combustion by injecting portland cement into the boiler with the fuel, the combustion air, or downstream with the combustion gases. There is also described the cement products that result from this method.

Steinberg, Meyer (Melville, NY)

1985-01-01T23:59:59.000Z

254

Corrosion of Aluminium in Composite Cements Anthony Setiadi* and Neil B. Milestone  

E-Print Network (OSTI)

to stress within cement matrix and possibly leading to cracks. #12;The aims of this research coloured corrosion products were observed visually on the aluminium encapsulated in OPC. Cracking was alsoCorrosion of Aluminium in Composite Cements Anthony Setiadi* and Neil B. Milestone Immobilisation

Sheffield, University of

255

Cementing of geothermal wells. Progress report No. 10, July--September 1978  

DOE Green Energy (OSTI)

Work to implement the program plan for the development of improved high temperature cementing materials for geothermal wells is continuing. Experimental work has been completed at the Colorado School of Mines. Samples of ..beta..-dicalcium silicate-silica cement developed in this program have been submitted for additional evaluation. The initial screening portion of this work has identified several promising systems that will undergo more rigorous testing. Dynamic brine exposure testing of several systems has been initiated at the East Mesa Geothermal Test Facility. Testing at the Niland test site is scheduled to start soon. Property verification tests on cements produced in the materials development phase of the program were initiated at the Bureau of Standards. Preliminary data are available for five cements exposed for 176 h to water at a temperature of 195/sup 0/C. Three of the cements exhibited strength losses during the test. An aluminum hydroxide cement and a polymer cement showed slight increases in strength after the exposure. These and longer-term data will be utilized in the selection of a material for use in the remedial cementing of a hot dry rock well at the Los Alamos Scientific Laboratory.

Not Available

1978-01-01T23:59:59.000Z

256

Portland cement for SO/sub 2/ control in coal-fired power plants  

DOE Patents (OSTI)

A method is described for removing oxides of sulfur from the emissions of fossil fuel combustion by injecting portland cement into the boiler with the fuel, the combustion air, or downstream with the combustion gases. The cement products that result from this method is also described. 1 tab.

Steinberg, M.

1984-10-17T23:59:59.000Z

257

Mexico-NAMA on Reducing GHG Emissions in the Cement Sector | Open Energy  

Open Energy Info (EERE)

Mexico-NAMA on Reducing GHG Emissions in the Cement Sector Mexico-NAMA on Reducing GHG Emissions in the Cement Sector Jump to: navigation, search Name CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector Agency/Company /Organization Center for Clean Air Policy (CCAP) Sector Energy Focus Area Industry, - Industrial Processes Topics Implementation, Low emission development planning, -NAMA, Market analysis, Policies/deployment programs Website http://www.ccap.org/docs/resou Program Start 2011 Program End 2011 Country Mexico UN Region Central America References CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector[1] CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector Screenshot "This interim report presents the preliminary results of the first phase of the study - an evaluation of sectoral approach issues and opportunities

258

CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector | Open  

Open Energy Info (EERE)

CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector Jump to: navigation, search Name CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector Agency/Company /Organization Center for Clean Air Policy (CCAP) Sector Energy Focus Area Industry, - Industrial Processes Topics Implementation, Low emission development planning, -NAMA, Market analysis, Policies/deployment programs Website http://www.ccap.org/docs/resou Program Start 2011 Program End 2011 Country Mexico UN Region Central America References CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector[1] CCAP-Mexico-NAMA on Reducing GHG Emissions in the Cement Sector Screenshot "This interim report presents the preliminary results of the first phase of the study - an evaluation of sectoral approach issues and opportunities

259

Long-term modeling of glass waste in portland cement- and clay-based matrices  

SciTech Connect

A set of ``templates`` was developed for modeling waste glass interactions with cement-based and clay-based matrices. The templates consist of a modified thermodynamic database, and input files for the EQ3/6 reaction path code, containing embedded rate models and compositions for waste glass, cement, and several pozzolanic materials. Significant modifications were made in the thermodynamic data for Th, Pb, Ra, Ba, cement phases, and aqueous silica species. It was found that the cement-containing matrices could increase glass corrosion rates by several orders of magnitude (over matrixless or clay matrix systems), but they also offered the lowest overall solubility for Pb, Ra, Th and U. Addition of pozzolans to cement decreased calculated glass corrosion rates by up to a factor of 30. It is shown that with current modeling capabilities, the ``affinity effect`` cannot be trusted to passivate glass if nuclei are available for precipitation of secondary phases that reduce silica activity.

Stockman, H.W.; Nagy, K.L. [Sandia National Labs., Albuquerque, NM (United States); Morris, C.E. [Wollongong Univ., NSW (Australia). Dept. of Civil and Mining Engineering

1995-12-01T23:59:59.000Z

260

Market Analyses | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Market Analyses Market Analyses Market Analyses November 1, 2013 - 11:40am Addthis Need information on the market potential for combined heat and power (CHP) in the U.S.? These assessments and analyses cover a wide range of markets including commercial and institutional buildings and facilities, district energy, and industrial sites. The market potential for CHP at federal sites and in selected states/regions is also examined. Commercial CHP and Bioenergy Systems for Landfills and Wastewater Treatment Plants Part I, 17 pp and Part II, 28 pp, Nov. 2007 Cooling, Heating, and Power for Commercial Buildings: Benefits Analysis, 310 pp, April 2002 Engine Driven Combined Heat and Power: Arrow Linen Supply, 21 pp, Dec. 2008 Integrated Energy Systems for Buildings: A Market Assessment, 77 pp,

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Characterization of Slag, Fly Ash and Portland Cement for Saltstone  

SciTech Connect

Batch-to-batch variability in the chemical and physical properties of the fly ash, slag and portland cement (binders) will be an ongoing concern over the many years that salt waste from Tank 50 will be processed into grout at the Saltstone Processing Facility. This batch-to-batch variability in the properties of the binder materials translates to variability in the fresh and cured properties of Saltstone. Therefore, it is important to quantify the batch-to-batch variability of the binder materials and the resultant variation in grout properties. This report is the starting point for that process by providing the baseline (reference point) binder properties to which future batches of binder materials can be compared. For this characterization effort, properties of fly ash, slag and portland cement were obtained and documented in this report. These properties included particle size distribution by laser light scattering and dry sieving, particle size and morphology by scanning electron microscopy, true, aerated and tapped densities, chemical composition, rheological properties of the water based slurries made from individual binder material, and volatility through thermogravimetric analysis and differential thermal analysis. The properties presented in this report also provide a baseline data set to assist in problem solving efforts when or if unanticipated and/or unwanted processing events occur at the Saltstone Processing Facility.

Harbour, J

2006-02-01T23:59:59.000Z

262

Demonstration of Mixed Waste Debris Macroencapsulation Using Sulfur Polymer Cement  

SciTech Connect

This report covers work performed during FY 1997 as part of the Evaluation of Sulfur Polymer Cement Fast-Track System Project. The project is in support of the ``Mercury Working Group/Mercury Treatment Demonstrations - Oak Ridge`` and is described in technical task plan (TTP) OR-16MW-61. Macroencapsulation is the treatment technology required for debris by the U.S. Environmental Protection Agency Land Disposal Restrictions (LDR) under the Resource Conservation and Recovery Act. Based upon the results of previous work performed at Oak Ridge, the concept of using sulfur polymer cement (SPC) for this purpose was submitted to the Mixed Waste Focus Area (MWFA). Because of the promising properties of the material, the MWFA accepted this Quick Win project, which was to demonstrate the feasibility of macroencapsulation of actual mixed waste debris stored on the Oak Ridge Reservation. The waste acceptance criteria from Envirocare, Utah, were chosen as a standard for the determination of the final waste form produced. During this demonstration, it was shown that SPC was a good candidate for macroencapsulation of mixed waste debris, especially when the debris pieces were dry. The matrix was found to be quite easy to use and, once the optimum operating conditions were identified, very straightforward to replicate for batch treatment. The demonstration was able to render LDR compliant more than 400 kg of mixed wastes stored at the Oak Ridge National Laboratory.

Mattus, C.H.

1998-07-01T23:59:59.000Z

263

Phosphate-bonded glass cements for geothermal wells. Final report  

DOE Green Energy (OSTI)

Calcium aluminosilicate glasses were found to react with phosphoric acid in three ways depending upon silica content. Above 55% SiO/sub 2/ they are insoluble while below 50% they dissolve readily. The transition compositions release calcium and aluminum ions and a silica gel phase replaces the glass. Activation energies in the order of 10 kcal/mole are associated with the dissolution. Equilibrium studies in the systems CaO-P/sub 2/O/sub 5/-H/sub 2/O, Al/sub 2/O/sub 3/-P/sub 2/O/sub 5/-H/sub 2/O, and CaO-Al/sub 2/O/sub 3/-P/sub 2/O/sub 5/-H/sub 2/O were made to determine the phases which are stable at 200/sup 0/C in excess water. The CaO system shows hydroxylapatite, monetite and monocalcium orthophosphate are the stable phases. The Al/sub 2/O/sub 3/ system contains augelite, berlinite, and a high phosphate aluminum hydrate. The quaternary system shows the above phase plus a lime alumina hydrogarnet and crandallite. Cement made from a glass frit of the composition 45% SiO/sub 2/: 24% CaO: 24% Al/sub 2/O/sub 3/ has a compressive strength of 500 psi after several days in steam at 200/sup 0/C and 800 psi after months in steam. Bonding of cements to mild steel are discussed.

Rockett, T.J.

1979-09-01T23:59:59.000Z

264

Geologic And Geophysical Evidence For Intra-Basin And Footwall Faulting At  

Open Energy Info (EERE)

Geophysical Evidence For Intra-Basin And Footwall Faulting At Geophysical Evidence For Intra-Basin And Footwall Faulting At Dixie Valley, Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Geologic And Geophysical Evidence For Intra-Basin And Footwall Faulting At Dixie Valley, Nevada Details Activities (1) Areas (1) Regions (0) Abstract: A 'nested graben' structural model, in which multiple faults successively displace rocks downward to the deepest part of the basin, is supported by recent field geologic analysis and correlation of results to geophysical data for Dixie Valley. Aerial photographic analysis and detailed field mapping provide strong evidence for a deep graben separated from the ranges to the east and west by multiple normal faults that affect the Tertiary/Quaternary basin-fill sediments. Correlation with seismic

265

Electromagnetic geophysics: Notes from the past and the road ahead | Open  

Open Energy Info (EERE)

Electromagnetic geophysics: Notes from the past and the road ahead Electromagnetic geophysics: Notes from the past and the road ahead Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Electromagnetic geophysics: Notes from the past and the road ahead Abstract During the last century, electrical geophysics has been transformed from a simple resistivity method to a modern technology that uses complex data-acquisition systems and high-performance computers for enhanced data modeling and interpretation. Not only the methods and equipment have changed but also our ideas about the geoelectrical models used for interpretation have been modified tremendously. This paper describes the evolution of the conceptual and technical foundations of EM methods. Author Michael S. Zhdanov Published Journal

266

Interactions between mantle plumes and mid-ocean ridges : constraints from geophysics, geochemistry, and geodynamical modeling  

E-Print Network (OSTI)

This thesis studies interactions between mid-ocean ridges and mantle plumes using geophysics, geochemistry, and geodynamical modeling. Chapter 1 investigates the effects of the Marion and Bouvet hotspots on the ultra-slow ...

Georgen, Jennifer E

2001-01-01T23:59:59.000Z

267

On the Use of Emulators with Extreme and Highly Nonlinear Geophysical Simulators  

Science Conference Proceedings (OSTI)

Gaussian process emulators are a powerful tool for understanding complex geophysical simulators, including oceanic and atmospheric general circulation models. Concern has been raised about their ability to emulate complex nonlinear systems. For ...

Robin Tokmakian; Peter Challenor; Yiannis Andrianakis

2012-11-01T23:59:59.000Z

268

The dynamics of oceanic transform faults : constraints from geophysical, geochemical, and geodynamical modeling  

E-Print Network (OSTI)

Segmentation and crustal accretion at oceanic transform fault systems are investigated through a combination of geophysical data analysis and geodynamical and geochemical modeling. Chapter 1 examines the effect of fault ...

Gregg, Patricia Michelle Marie

2008-01-01T23:59:59.000Z

269

Geophysical imaging methods for analysis of the Krafla Geothermal Field, NE Iceland  

E-Print Network (OSTI)

Joint geophysical imaging techniques have the potential to be reliable methods for characterizing geothermal sites and reservoirs while reducing drilling and production risks. In this study, we applied a finite difference ...

Parker, Beatrice Smith

2012-01-01T23:59:59.000Z

270

Mining geophysical parameters through decision-tree analysis to determine correlation with tropical cyclone development  

Science Conference Proceedings (OSTI)

Correlations between geophysical parameters and tropical cyclones are essential in understanding and predicting the formation of tropical cyclones. Previous studies show that sea surface temperature and vertical wind shear significantly influence the ... Keywords: Data mining, Hurricane, Natural disaster, Prediction

Wenwen Li; Chaowei Yang; Donglian Sun

2009-02-01T23:59:59.000Z

271

Geophysical applications of nuclear resonant spectroscopy Wolfgang Sturhahn and Jennifer M. Jackson*  

E-Print Network (OSTI)

Geophysical applications of nuclear resonant spectroscopy Wolfgang Sturhahn and Jennifer M. Jackson summarize recent developments of nuclear resonant spectroscopy methods like nuclear resonant inelastic x important information on valence, spin state, and magnetic ordering. Both methods use a nuclear resonant

Jackson, Jennifer M.

272

Toward Optimal Choices of Control Space Representation for Geophysical Data Assimilation  

Science Conference Proceedings (OSTI)

In geophysical data assimilation, observations shed light on a control parameter space through a model, a statistical prior, and an optimal combination of these sources of information. This control space can be a set of discrete parameters, or, ...

Marc Bocquet

2009-07-01T23:59:59.000Z

273

GRR/Section 4-AK-b - Geophysical Exploration Permit | Open Energy  

Open Energy Info (EERE)

4-AK-b - Geophysical Exploration Permit 4-AK-b - Geophysical Exploration Permit < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 4-AK-b - Geophysical Exploration Permit 04AKBGeophysicalExplorationPermit.pdf Click to View Fullscreen Contact Agencies Alaska Department of Natural Resources Alaska Division of Oil and Gas Regulations & Policies Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 04AKBGeophysicalExplorationPermit.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative A Geophysical Exploration Permit is necessary for conducting seismic

274

A suction lysimeter and a geophysical access port  

DOE Patents (OSTI)

A sampling apparatus is described for monitoring vadose zones, geologic media or buried waste in sediment and more particularly to such an apparatus which is operable as an access port for geophysical logging and collecting fluid samples to permit analysis of such fluid samples for the presence of toxic substances, having a pipe-like, stainless steel, longitudinally extending, access tube with two ends, where the first end extends above the surface of the sediment and has a removable air tight seal. The subject invention further has a backing in fluid communication with the access tube and a fluid permeable plate contiguous with the backing, wherein the fluid permeable plate is made up of porous stainless steel. A reservoir is integrated into the second closed end of the access tube for containing the collected fluid. A vacuum pump, having a vacuum gauge/transducer attached thereto, is connected to the removable air tight seal for applying a vacuum to the access tube, such that gas and fluid samples may be drawn through the fluid permeable plate. A fluid sample connector coupled to the removable air tight seal, in addition to the vacuum pump with vacuum gauge/transducer, for withdrawing a fluid sample from the access tube.

Hubbell, J.M.; Sisson, J.B.

1995-12-31T23:59:59.000Z

275

Geophysical study of the Clear Lake region, California  

DOE Green Energy (OSTI)

Results of geophysical studies in the Clear Lake region of California, north of San Francisco, have revealed a prominent, nearly circular negative gravity anomaly with an amplitude of more than 25 milligals (mgal) and an areal extent of approximately 250 square miles and, in addition, a number of smaller positive and negative anomalies. The major negative gravity anomaly is closely associated with the Clear Lake volcanic field and with an area characterized by hot springs and geothermal fields. However, the anomaly cannot be explained by mapped surface geologic features of the area. Aeromagnetic data in the Clear Lake region show no apparent correlation with the major negative gravity anomaly; the local magnetic field is affected principally by serpentine. An electrical resistivity low marks the central part of the gravity minimum, and a concentration of earthquake epicenters characterizes the Clear Lake volcanic field area. The primary cause of the major negative gravity anomaly is believed to be a hot intrusive mass, possibly a magma chamber, that may underlie the Clear Lake volcanic field and vicinity. This mass may serve as a source of heat for the geothermal phenomena in the area. Other smaller gravity anomalies in the Clear Lake region are apparently caused by near-surface geologic features, including relatively dense units of the Franciscan Formation and less dense Cenozoic sedimentary and volcanic rock units.

Chapman, R.H.

1975-01-01T23:59:59.000Z

276

Imaging algorithms for geophysical applications of impedance tomography  

SciTech Connect

The methods of impedance tomography may be employed to obtain images of subsurface electrical and conductivity variations. For practical reasons, voltages and currents are usually applied at locations on the ground surface or down a limited number of boreholes, but almost never over the entire surface of the region being investigated. The geophysical inversion process can be facilitated by constructing algorithms adopted to these particular geometries and to the lack of complete surface data. In this paper we assume that the fluctuations in conductivity are small compared to the background value. The imaging of these fluctuations is carried out exactly within the constraints imposed by the problem geometry. Several possible arrangements of injection and monitoring electrodes are considered. In two dimensions include: Cross-line geometry, current input along one line (borehole) and measurements along a separate parallel line. Single-line geometry, injection and monitoring using the same borehole. Surface reflection geometry, all input and measurement along the ground surface. Theoretical and practical limitations on the image quality produced by the algorithms are discussed. They are applied to several sets of simulated data, and the images produced are displayed and analyzed.

Witten, A.J. (Oak Ridge National Lab., TN (United States)); Molyneux, J.E. (Widener Univ., Dept. of Mechanical Engineering, Chester, PA (United States))

1992-06-02T23:59:59.000Z

277

Turbulent thermal diffusion of aerosols in geophysics and laboratory experiments  

E-Print Network (OSTI)

We discuss a new phenomenon of turbulent thermal diffusion associated with turbulent transport of aerosols in the atmosphere and in laboratory experiments. The essence of this phenomenon is the appearance of a nondiffusive mean flux of particles in the direction of the mean heat flux, which results in the formation of large-scale inhomogeneities in the spatial distribution of aerosols that accumulate in regions of minimum mean temperature of the surrounding fluid. This effect of turbulent thermal diffusion was detected experimentally. In experiments turbulence was generated by two oscillating grids in two directions of the imposed vertical mean temperature gradient. We used Particle Image Velocimetry to determine the turbulent velocity field, and an Image Processing Technique based on an analysis of the intensity of Mie scattering to determine the spatial distribution of aerosols. Analysis of the intensity of laser light Mie scattering by aerosols showed that aerosols accumulate in the vicinity of the minimum mean temperature due to the effect of turbulent thermal diffusion. Geophysical applications of the obtained results are discussed.

A. Eidelman; T. Elperin; N. Kleeorin; A. Krein; I. Rogachevskii; J. Buchholz; G. Gruenefeld

2004-11-11T23:59:59.000Z

278

Geophysical imaging method utilizing backpropagation and zeroth-order phase approximation  

DOE Patents (OSTI)

A method is provided for determining, under field conditions and in near-real time, an image of a geophysical objective under the ground in a geophysical medium, utilizing a zeroth order phase approximation implemented with first signal-to-detector arrival times for a plurality of signal transmitters transmitting signals through the geologic medium and the geologic objective to a plurality of signal receivers, disposed adjacent to the geologic objective in a predetermined manner. 9 figs.

Witten, A.J.

1989-09-12T23:59:59.000Z

279

SODIUM POLYPHOSPHATE-MODIFIED CLASS C/CLASS F FLY ASH BLEND CEMENTS FOR GEOTHERMAL WELLS.  

DOE Green Energy (OSTI)

The authors investigated the usefulness of the coal combustion by-products, Class C fly ash (C) and Class F fly ash (F), in developing cost-effective acid-resistant phosphate-based cements for geothermal wells. In the temperature range of 20-100 C, sodium polyphosphate (NaP) as the acidic cement-forming solution preferentially reacted with calcium sulfate and lime in the C as the base solid reactant through the exothermic acid-base reaction route, rather than with the tricalcium aluminate in C. This reaction led to the formation of hydroxyapatite (HOAp). In contrast, there was no acid-base reaction between the F as the acidic solid reactant and NaP. After autoclaving the cements at 250 C, a well-crystallized HOAp phase was formed in the NaP-modified C cement that was responsible for densifying the cement's structure, thereby conferring low water permeability and good compressive strength on the cement. however, the HOAp was susceptible to hot CO{sub 2}-laden H{sub 2}SO{sub 4} solution (pH 1.1), allowing some acid erosion of the cement. On the other hand, the mullite in F hydrothermally reacted with the Na from NaP to form the analcime phase. Although this phase played a pivotal role in abating acid erosion, its generation created an undesirable porous structure in the cement. They demonstrated that blending fly ash with a C/F ratio of 70/30 resulted in the most suitable properties for acid-resistant phosphate-based cement systems.

SUGAMA, T.; BROTHERS, L.E.; KASPEREIT, D.

2006-02-01T23:59:59.000Z

280

Diagenesis and cement fabric of gas reservoirs in the Oligocene Vicksburg Formation, McAllen Ranch Field, Hidalgo County, Texas  

SciTech Connect

McAllen Ranch field produces natural gas from 12 deep, overpressured sandstone packages, each interpreted to be the deposit of a prograding shelf-edge delta. One hundred and sixty thin sections from 350 ft of core were petrographically described. The sandstones are feldspathic litharenites containing subequal proportions of volcanic rock fragments (VRF), feldspar, and quartz grains. Grain size ranges from very fine to coarse sand. Porosity is mostly secondary, having formed through dissolution of VRF and feldspar grains. There are four major diagenetic facies (portions of core that can be grouped by the predominance of one diagenetic cement and similar appearance in hand specimen): (1) calcite cemented; (2) chlorite cemented, tight; (3) chlorite cemented, porous; and (4) quartz overgrowths, porous. The calcite-cemented facies predominates in very fine grained sandstones and siltstones and encroaches into adjoining sandstones irrespective of grain size. Sparry calcite filled all available pores and replaced some feldspar. Core permeabilities are generally less than 0.01 md, and porosities range from 7 to 15%. Authigenic clay (predominantly chlorite) generally cements sands intermediate in grain size between those cemented by calcite and those cemented by quartz. Two types of diagenetic clay fabric are interbedded, forming distinct alternating bands 0.1 in. to 3 ft thick. Gray, tightly chlorite-cemented bands are macroscopically and microscopically distinct from green, porous chlorite-cemented bands. In the tightly chlorite-cemented facies, permeabilities are less than 0.3 md, and porosities range from 8 to 16%. Small plates of chlorite fill interparticle pores, and secondary pores are rare. In the porous chlorite-cemented facies, dissolution of framework grains and chlorite cement increased porosity, and a second chlorite cement was precipitated. Core permeability ranges from 0.1 to 1 md, and porosities range from 15 to 20%.

Langford, R.P.; Lynch, F.L. (Univ. of Texas, Austin (USA))

1990-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Improved method and composition for immobilization of waste in cement-based material  

DOE Patents (OSTI)

A composition and method for fixation or immobilization of aqueous hazardous waste material in cement-based materials (grout) is disclosed. The amount of drainable water in the cured grout is reduced by the addition of an ionic aluminum compound to either the waste material or the mixture of waste material and dry-solid cement- based material. This reduction in drainable water in the cured grout obviates the need for large, expensive amounts of gelling clays in grout materials and also results in improved consistency and properties of these cement-based waste disposal materials.

Tallent, O.K.; Dodson, K.E.; McDaniel, E.W.

1987-10-01T23:59:59.000Z

282

Climate VISION: Private Sector Initiatives: Cement: Technology Pathways  

Office of Scientific and Technical Information (OSTI)

Technology Pathways Technology Pathways The DOE's Industries of the Future process helps entire industries articulate their long-term goals and publish them in a unified vision for the future. To achieve that vision, industry leaders jointly define detailed R&D agendas known as roadmaps. ITP relies on roadmap-defined priorities to target cost-shared solicitations and guide development of a balanced R&D portfolio that yields useful results in the near, mid, and long term. Industry Vision & Roadmaps Two documents address the cement industry's challenges and priorities: Vision 2030, which outlines broad goals for the future, and Roadmap 2030, which established the industry's R&D priorities. ITP and the Strategic Development Council, a council of the American Concrete Institute's

283

Carbon dioxide capture from a cement manufacturing process  

DOE Patents (OSTI)

A process of manufacturing cement clinker is provided in which a clean supply of CO.sub.2 gas may be captured. The process also involves using an open loop conversion of CaO/MgO from a calciner to capture CO.sub.2 from combustion flue gases thereby forming CaCO.sub.3/CaMg(CO.sub.3).sub.2. The CaCO.sub.3/CaMg(CO.sub.3).sub.2 is then returned to the calciner where CO.sub.2 gas is evolved. The evolved CO.sub.2 gas, along with other evolved CO.sub.2 gases from the calciner are removed from the calciner. The reactants (CaO/MgO) are feed to a high temperature calciner for control of the clinker production composition.

Blount, Gerald C. (North Augusta, SC); Falta, Ronald W. (Seneca, SC); Siddall, Alvin A. (Aiken, SC)

2011-07-12T23:59:59.000Z

284

Cementation process for minerals recovery from Salton Sea geothermal brines  

DOE Green Energy (OSTI)

The potential for minerals recovery from a 1000-MWe combined geothermal power and minerals recovery plant in the Salton Sea is examined. While the possible value of minerals recovered would substantially exceed the revenue from power production, information is insufficient to carry out a detailed economic analysis. The recovery of precious metals - silver, gold, and platinum - is the most important factor in determining the economics of a minerals recovery plant; however, the precious metals content of the brines is not certain. Such a power plant could recover 14 to 31% of the US demand for manganese and substantial amounts of zinc and lead. Previous work on minerals extraction from Salton Sea brines is also reviewed and a new process, based on a fluidized-bed cementation reaction with metallic iron, is proposed. This process would recover the precious metals, lead, and tin present in the brines.

Maimoni, A.

1982-01-26T23:59:59.000Z

285

Cement Creek Ranch Pool & Spa Low Temperature Geothermal Facility | Open  

Open Energy Info (EERE)

Cement Creek Ranch Pool & Spa Low Temperature Geothermal Facility Cement Creek Ranch Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Cement Creek Ranch Pool & Spa Low Temperature Geothermal Facility Facility Cement Creek Ranch Sector Geothermal energy Type Pool and Spa Location Crested Butte, Colorado Coordinates 38.8697146°, -106.9878231° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

286

Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network (OSTI)

Shale Energy and Oil Shale Minerals within the Production ofproduction – use of carbide slag Cement with low lime saturation factor Calcareous oil shaleoil shale can be used as an alternative feedstock and partial fuel substitute in clinker production.

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

287

Potential Energy Savings and CO2 Emissions Reduction of China's Cement Industry  

E-Print Network (OSTI)

Energy demand and emissions in 2030 in China: scenarios andand carbon reduction in 2011-2030. Three cement output3.2 to 4.4 gigatonnes in 2011-2030 under the best practice

Ke, Jing

2013-01-01T23:59:59.000Z

288

Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network (OSTI)

Hilger, J. 2003. Combined Utilization of Oil Shale Energyand Oil Shale Minerals within the Production of Cement andOther Hydraulic Minerals. Oil Shale, Vol. 20, No. 3, pp.

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

289

Cementing of geothermal wells. Progress report No. 9, April--June 1978  

DOE Green Energy (OSTI)

Work to implement the program plan for the development of improved high temperature cementing materials for geothermal wells is continuing. Work on polymer cements containing mixtures of organosiloxanes and styrene is continuing to show the potential of the system as a high temperature cementing material. Samples exposed for 360 hr to brine at 250/sup 0/C have not shown evidence of hydrolysis and have maintained high strength. At 350/sup 0/C, the compressive strength is > 5000 psi. Preliminary tests to determine the pumpability of the system are in progress. Work on the development of inorganic cementing materials is continuing at six laboratories. Several promising materials have been identified. Tests to measure compressive strengths, bond strengths, permeability, and compatibility with drilling muds are in progress. Consistometer tests have been performed on some materials.

Not Available

1978-11-01T23:59:59.000Z

290

Microsoft Word - NETL-TRS-003-2012_Cementing Research Needs_20121207...  

NLE Websites -- All DOE Office Websites (Extended Search)

Cement Isolation of Formations in Deep Offshore Wells 7 December 2012 Office of Fossil Energy NETL-TRS-3-2012 Disclaimer This report was prepared as an account of work...

291

Potential Energy Savings and CO2 Emissions Reduction of China's Cement Industry  

E-Print Network (OSTI)

in CO 2 emissions from fossil fuel consumption and cement2010a). Coal is the main fossil fuel used in China’s cementdioxide (CO2) emissions from fossil fuel combustion, as well

Ke, Jing

2013-01-01T23:59:59.000Z

292

Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network (OSTI)

Hilger, J. 2003. Combined Utilization of Oil Shale Energyand Oil Shale Minerals within the Production of Cement andHydraulic Minerals. Oil Shale, Vol. 20, No. 3, pp. 347-355.

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

293

Grinding of cement clinkers : linking multi-scale fracture properties to system chemistry, mineralogy and microstructure  

E-Print Network (OSTI)

Growing environmental concerns encourage the cement industry to improve its environmental performance, which in turn renews the interest in clinker grinding efficiency. Current knowledge on clinker grinding was built over ...

Wilson, William, S.M. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

294

Effects of composition and exposure on the solar reflectance of Portland Cement Concrete  

SciTech Connect

Increasing the solar reflectance (albedo) of a paved surface keeps it cooler in the sun, reducing convection of heat from pavement to air and thereby decreasing the ambient air temperature. Lower air temperatures decrease demand for cooling energy and slow the formation of urban smog. Variations with composition and environmental exposure of the albedos of portland cement concrete pavements were investigated through laboratory fabrication and exposure of 32 mixes of concrete. Concrete albedo generally correlated with cement albedo and sand albedo and, after abrasion, with rock albedo. Cement albedo had a disproportionately strong influence on the reflectance of concrete. Simulated weathering, soiling, and abrasion each reduced average concrete albedo, though some samples became slightly more reflective through weathering or soiling. Concrete albedo grew as the cement hydration reaction progressed, but stabilized within six weeks of casting.

Levinson, Ronnen; Akbari, Hashem

2002-06-01T23:59:59.000Z

295

Effects of composition and exposure on the solar reflectance of Portland cement concrete  

Science Conference Proceedings (OSTI)

Increasing the solar reflectance (albedo) of a paved surface keeps it cooler in the sun, reducing convection of heat from pavement to air and thereby decreasing the ambient air temperature. Simulations of the influence of pavement albedo on air temperature in Los Angeles predict that increasing the albedo of 1,250 km2 of pavement by 0.25 would save cooling energy worth $15M yr-1, and reduce smog-related medical and lost-work expenses by $76M yr-1. Most sidewalks and a small fraction of roads and parking areas are paved with portland cement concrete, which can be made quite reflective through suitable choice of cement and aggregate. Variations with composition and environmental exposure of the albedos of portland cement concrete pavements were investigated through laboratory fabrication and exposure of 32 mixes of concrete. Twenty-four mixes yielded substandard, ''rough'' concretes due to high, unmet aggregate water demand. The albedos of the remaining eight ''smooth'' concrete mixes ranged from 0.41 to 0.77 (mean 0.59). Simulated weathering, soiling, and abrasion each reduced average concrete albedo (mean decreases 0.06, 0.05, and 0.19, respectively), though some samples became slightly more reflective through weathering or soiling. Simulated rain (wetting) strongly depressed the albedos of concretes (mean decrease 0.23) until their surfaces were dried. Concrete albedo grew as the cement hydration reaction progressed (mean increase 0.08), but stabilized within six weeks of casting. White-cement concretes were on average significantly more reflective than gray-cement concretes. The albedo of the most-reflective white-cement concrete was 0.18 to 0.39 higher than that of the most-reflective gray-cement concrete, depending on state of exposure. Concrete albedo generally correlated with cement albedo and sand albedo, and, after abrasion, with rock albedo. Cement albedo had a disproportionately strong influence on the reflectance of concrete. Efflorescence and surface carbonation whitened some gray-cement mixes.

Levinson, Ronnen; Akbari, Hashem

2001-12-21T23:59:59.000Z

296

CITRIC ACID AS A SET RETARDER FOR CALCIUM ALUMINATE PHOSPHATE CEMENTS.  

DOE Green Energy (OSTI)

Citric acid added as set retarder significantly contributed to enhancing the setting temperature and to extending the thickening time of a calcium aluminate phosphate (CaP) geothermal cement slurry consisting of calcium aluminate cement (CAC) as the base reactant and sodium polyphosphate (NaP) solution as the acid reactant. The set-retarding activity of citric acid was due to the uptake of Ca{sup 2+} ions from the CAC by carboxylic acid groups within the citric acid. This uptake led to the precipitation of a Ca-complexed carboxylate compound as a set-retarding barrier layer on the CAC grains' surfaces. However, this barrier layer was vulnerable to disintegration by the attack of free Ca{sup 2+} ions from CAC, and also to degradation at elevated temperature, thereby promoting the generation of exothermic energy from acid-base reactions between the CAC and NaP after the barrier was broken. The exothermic reaction energy that was promoted in this way minimized the loss in strength of the citric acid-retarded cement. The phase composition assembled in both retarded and non-retarded cements after autoclaving at 180 C encompassed three reaction products, hydroxyapatite (HOAp), hydrogrossular and boehmite, which are responsible for strengthening the autoclaved cement. The first two reaction products were susceptible to reactions with sulfuric acid and sodium sulfate to form crystalline bassanite scale as the corrosion product. The boehmite phase possessed a great resistance to acid and sulfate. Although the bassanite scales clinging to the cement's surfaces were the major factor governing the loss in weight, they served in protecting the cement from further acid- and sulfate-corrosion until their spallation eventually occurred. Nevertheless, the repetitive processes of HOAp and hydrogrossular {yields} bassanite {yields} spallation played an important role in extending the useful lifetime of CaP cement in a low pH environment at 180 C.

SUGAMA,T.; BROTHERS, L.E.

2005-01-01T23:59:59.000Z

297

Energy-saving cements obtained from chemical gypsum and other industrial wastes  

SciTech Connect

The main sources, properties and uses of chemical gypsum are reviewed and the possibility of its utilization for the manufacturing process of calcium sulfoaluminate cements is explored. In this process other industrial wastes, as sources of reactive silica and alumina, can be employed. Phosphogypsum, blast-furnace slag and fly ash were the main by-products investigated. The principal properties of calcium sulfoaluminate cements, such as synthesis, hydration and strength, were discussed. Some durability problems and suggested solutions were particularly emphasized.

Beretka, J. [CSIRO Div. of Building, Construction and Engineering, Highett, Victoria (Australia)] [CSIRO Div. of Building, Construction and Engineering, Highett, Victoria (Australia); Cioffi, R. [Univ. Degli Studi di Napoli Federico II (Italy). Dipt. di Ingegneria dei Materiali e della Produzione] [Univ. Degli Studi di Napoli Federico II (Italy). Dipt. di Ingegneria dei Materiali e della Produzione; Marroccoli, M.; Valenti, G.L. [Univ. della Basilicata, Potenza (Italy). Dipt. di Ingegneria e Fisica dell`Ambiente] [Univ. della Basilicata, Potenza (Italy). Dipt. di Ingegneria e Fisica dell`Ambiente

1996-12-31T23:59:59.000Z

298

Optimizing the physical and technological properties of cement additives in concrete mixtures  

Science Conference Proceedings (OSTI)

In this article, the physical and technological properties of phosphogypsum, borogypsum, sludges and reactor residue recovered from boric acid factor, lignite ashes, and steel making slags samples were investigated. Physical test results obtained from these cement additives were studied with comparison to the control mix. The optimal values of cementitious additives are replacement of cement and/or of replacement of natural aggregates were conducted.

Demirbas, A. [Technical Univ. of Black Sea, Akcaabat-Trabzon (Turkey). Educational Faculty] [Technical Univ. of Black Sea, Akcaabat-Trabzon (Turkey). Educational Faculty

1996-11-01T23:59:59.000Z

299

The use of Devonian oil shales in the production of portland cement  

SciTech Connect

The Lafarge Corporation operates a cement plant at Alpena, Michigan in which Antrim shale, a Devonian oil shale, is used as part of the raw material mix. Using this precedent the authors examine the conditions and extent to which spent shale might be utilized in cement production. They conclude that the potential is limited in size and location but could provide substantial benefit to an oil shale operation meeting these criteria.

Schultz, C.W.; Lamont, W.E. [Alabama Univ., University, AL (United States); Daniel, J. [Lafarge Corp., Alpena, MI (United States)

1991-12-31T23:59:59.000Z

300

The use of Devonian oil shales in the production of portland cement  

SciTech Connect

The Lafarge Corporation operates a cement plant at Alpena, Michigan in which Antrim shale, a Devonian oil shale, is used as part of the raw material mix. Using this precedent the authors examine the conditions and extent to which spent shale might be utilized in cement production. They conclude that the potential is limited in size and location but could provide substantial benefit to an oil shale operation meeting these criteria.

Schultz, C.W.; Lamont, W.E. (Alabama Univ., University, AL (United States)); Daniel, J. (Lafarge Corp., Alpena, MI (United States))

1991-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Use of High Carbon Fly Ash as a Component of Raw Mix for Cement Manufacture  

Science Conference Proceedings (OSTI)

In the production of concrete, fly ash often serves as a supplementary cementing material, but some fly ashes may not be suitable for this use due to excess unburned carbon. This report presents the results of a literature investigation, bench-scale laboratory study, and pilot-scale tests of the feasibility of using such high carbon fly ashes in the manufacture of portland cement.

1998-06-30T23:59:59.000Z

302

Hydraulic behavior of calcium sulfoaluminate-based cements derived from industrial process wastes  

Science Conference Proceedings (OSTI)

The manufacture of cements based on calcium sulfoaluminate (C[sub 4]A[sub 3][bar S]) [In this paper, the notation adopted in cement chemistry, vis. C=CO, A=Al[sub 2]O[sub 3], [bar S]=SO[sub 3], S=SiO[sub 2], and H=H[sub 2]O, has been used.] requires lower firing temperatures and lower grinding energy, as compared to ordinary Portland cements (OPC). Some of these low-energy cements can be formulated in order to develop high early strength and other performances similar to OPC. Further interest towards these types of cements relies on the possibility of using industrial process wastes as raw materials for their manufacture. It has been found that a number of industrial wastes and by-products such as phosphogypsum, bauxite fines, fly ash and blast furnace slag, can be employed without negatively affecting the hydraulic behavior of cements of planned C[sub 4]A[sub 3][bar S]:[beta]-C[sub 2]S:C[bar S] weight ratio 1.5:1:1. Blast furnace slag and fly ash can also be advantageously used as blending components of the fired products.

Beretka, J.; Sherman, N. (CSIRO, Highett, Victoria (Australia). Div. of Building); Vito, B. de (Univ. degli Studi di Napoli (Italy). Dipt. di Ingegneria dei Materiali e della Produzione); Santoro, L. (Univ. degli Studi di Napoli (Italy). Dipt. di Chimica); Valenti, G.L. (Univ. degli Studi della Basillicata, Potenza (Italy). Dipt. di Ingegneria e Fisica dell'Ambiente)

1993-09-01T23:59:59.000Z

303

Percutaneous Extraction of Cement Leakage After Vertebroplasty Under CT and Fluoroscopy Guidance: A New Technique  

SciTech Connect

Purpose: We report a new minimally invasive technique of extraction of cement leakage following percutaneous vertebroplasty in adults. Methods: Seven adult patients (five women, two men; mean age: 81 years) treated for vertebral compression fractures by percutaneous vertebroplasty had cement leakage into perivertebral soft tissues along the needle route. Immediately after vertebroplasty, the procedure of extraction was performed under computed tomography (CT) and fluoroscopy guidance: a Chiba needle was first inserted using the same route as the vertebroplasty until contact was obtained with the cement fragment. This needle was then used as a guide for an 11-gauge Trocar t'am (Thiebaud, France). After needle withdrawal, a 13-gauge endoscopy clamp was inserted through the cannula to extract the cement fragments. The whole procedure was performed under local anesthesia. Results: In each patient, all cement fragments were withdrawn within 10 min, without complication. Conclusions: This report suggests that this CT- and fluoroscopy-guided percutaneous technique of extraction could reduce the rate of cement leakage-related complications.

Amoretti, Nicolas, E-mail: amorettinicolas@yahoo.fr; Huwart, Laurent, E-mail: huwart.laurent@wanadoo.fr [Centre Hospitalo-Universitaire de Nice, Department of Radiology (France)

2012-12-15T23:59:59.000Z

304

The hydration of reactive cement-in-polymer dispersions studied by nuclear magnetic resonance  

Science Conference Proceedings (OSTI)

The behaviour of two novel cement-in-polymer (c/p) dispersions, namely cement-in-poly(vinyl acetate) and cement-in-poly(vinyl alcohol) upon exposure to water at room temperature was investigated by a combination of various NMR methods. The swelling, cracking, and the water ingress were monitored non-destructively using {sup 1}H single point imaging. The hydration of the cement matrix was investigated using {sup 29}Si NMR whilst {sup 13}C CPMAS NMR spectra allowed the quantification of the kinetics of the hydrolysis reaction of poly(vinyl acetate) into poly(vinyl alcohol). The polymer controls the rate of water ingress and swelling which in turn determines the behaviour of the c/p dispersions upon exposure to water. For the cement-in-poly(vinyl alcohol), the rates of water ingress and swelling are much faster than the hydration of the clinker whilst for the cement-in-poly(vinyl acetate) the slow rates of the two processes allow the formation of a cementious matrix which assures the stability of the sample.

Olaru, A.M. [Institut fuer Technische und Makromolekulare Chemie, RWTH Aachen University, Templergraben 55, 52056 Aachen (Germany); Weichold, O. [DWI an der RWTH Aachen, e. V., Pauwelsstrasse 8, 52056 Aachen (Germany); Adams, A., E-mail: aadams@mc.rwth-aachen.de [Institut fuer Technische und Makromolekulare Chemie, RWTH Aachen University, Templergraben 55, 52056 Aachen (Germany)

2011-11-15T23:59:59.000Z

305

New high temperature cementing materials for geothermal wells: stability and properties. Final report  

DOE Green Energy (OSTI)

Potential high-temperature cements have been formulated and evaluated in terms of their properties for geothermal well cementing. Phase formation and compatibility in two major compositional regions were investigated in the temperature region between 200 and 400/sup 0/C and pressures up to 69 MPa (10,000 psi). These were followed by an evaluation of properties of the cements formed. One area in the system Ca0-Mg0-Si0/sub 2/-H/sub 2/0 centered around the xonotlite-chrysotile join while the other area of interest centered around the anorthite composition in the system Ca0-Al/sub 2/O/sub 3/-SiO/sub 2/-H/sub 2/O. After numerous exploratory studies, the magnesia-containing mixtures were prepared by mixing a Class J cement with various sources of magnesia such as calcined chrysotile, or magnesium oxide. Calcium oxide and silica fine quartz powder were also added to adjust the compositions. The aluminous system cements were formulated from high-alumina cements which were mixed with various silica sources.

Roy, D.M.; White, E.L.; Langton, C.A.; Grutzeck, M.W.

1980-07-01T23:59:59.000Z

306

Literature survey on cements for remediation of deformed casing in geothermal wells  

DOE Green Energy (OSTI)

Brookhaven National Laboratory was requested to conduct a literature survey for the best available cement to use in the proposed casing patch as part of the Geothermal Drilling Organization (GDO) project on remediation of deformed casings. A total of 50 wells have been identified with deformed production casing in Unocal`s portion of The Geysers geothermal field. A procedure to address the casing deformation and avoid abandonment of these wells has been developed as described in the Geysers Deformed Casing Remediation Proposal. The proposed remediation procedure involves isolation of the zone of interest with an inflatable packer, milling the deformed casing and cementing a 7 inch diameter liner to extend approximately 100 ft above and 100 ft below the milled zone. During the milling operation it is possible that the original cement and surrounding formation may slough away. In order to specify a suitable cement formulation for the casing patch it is first necessary to identify and understand the deformation mechanism/s operating in The Geysers field. Subsequently, the required cement mechanical properties to withstand further deformation of the repaired system must be defined. From this information it can be determined whether available cement formulations meet these requirements. In addition to The Geysers, other geothermal fields are at possible risk of casing deformation due to subsidence, seismic activity, lateral and vertical formation movement or other processes. Therefore, the proposed remediation procedure may have applications in other fields.

Allan, M.L.; Philippacopoulos, A.J.

1998-12-31T23:59:59.000Z

307

A Survey of Department of Energy-Sponsored Geophysical Research for Shallow Waste Site Characterization  

Science Conference Proceedings (OSTI)

Subsurface contamination plagues many U.S. Department of Energy (DOE) sites and threatens groundwater supplies. This survey discusses research sponsored by the DOE Environmental Management Science Program (EMSP) for geophysical characterization of the vadose zone at the Idaho National Engineering and Environmental Laboratory (INEEL) and other contaminated sites. Various types of geophysical imaging techniques are used to characterize the shallow subsurface—electromagnetic, ground-penetrating radar, electrical, seismic, and nuclear magnetic resonance. Three common themes appear in the research surveyed in this article: (1) the development of high-resolution imaging capabilities to capture important details of the heterogeneous nature of subsurface properties and processes, (2) the coupling of non-intrusive survey geophysical measurements (e.g., electrical surveys) with detailed quantitative precise point-sensor measurements (e.g., lysimeters and vapor-port systems) or borehole (e.g., nuclear magnetic resonance, neutron-based moisture, and geochemical tools) measurements to extend high-precision knowledge away from the borehole, and finally (3) the application of multiple geophysical methods to constrain the uncertainty in determining critical subsurface physical properties. Laboratory, field, theoretical, and computational studies are necessary to develop our understanding of the manner in which contaminants travel through the vadose zone. Applications of geophysical methods to various contaminated areas at the INEEL are given.

Donna Post Guillen

2004-01-01T23:59:59.000Z

308

Geophysical remote sensing of water reservoirs suitable for desalinization.  

Science Conference Proceedings (OSTI)

In many parts of the United States, as well as other regions of the world, competing demands for fresh water or water suitable for desalination are outstripping sustainable supplies. In these areas, new water supplies are necessary to sustain economic development and agricultural uses, as well as support expanding populations, particularly in the Southwestern United States. Increasing the supply of water will more than likely come through desalinization of water reservoirs that are not suitable for present use. Surface-deployed seismic and electromagnetic (EM) methods have the potential for addressing these critical issues within large volumes of an aquifer at a lower cost than drilling and sampling. However, for detailed analysis of the water quality, some sampling utilizing boreholes would be required with geophysical methods being employed to extrapolate these sampled results to non-sampled regions of the aquifer. The research in this report addresses using seismic and EM methods in two complimentary ways to aid in the identification of water reservoirs that are suitable for desalinization. The first method uses the seismic data to constrain the earth structure so that detailed EM modeling can estimate the pore water conductivity, and hence the salinity. The second method utilizes the coupling of seismic and EM waves through the seismo-electric (conversion of seismic energy to electrical energy) and the electro-seismic (conversion of electrical energy to seismic energy) to estimate the salinity of the target aquifer. Analytic 1D solutions to coupled pressure and electric wave propagation demonstrate the types of waves one expects when using a seismic or electric source. A 2D seismo-electric/electro-seismic is developed to demonstrate the coupled seismic and EM system. For finite-difference modeling, the seismic and EM wave propagation algorithms are on different spatial and temporal scales. We present a method to solve multiple, finite-difference physics problems that has application beyond the present use. A limited field experiment was conducted to assess the seismo-electric effect. Due to a variety of problems, the observation of the electric field due to a seismic source is not definitive.

Aldridge, David Franklin; Bartel, Lewis Clark; Bonal, Nedra; Engler, Bruce Phillip

2009-12-01T23:59:59.000Z

309

Examples of Analyses [Engineering and Structural Mechanics] ...  

NLE Websites -- All DOE Office Websites (Extended Search)

Analyses Capabilities Engineering Computation and Design Engineering and Structural Mechanics Overview Areas of Application Examples of Analyses SystemsComponent Design,...

310

EETD Researchers at the American Geophysical Union Meeting in San Francisco  

NLE Websites -- All DOE Office Websites (Extended Search)

EETD Researchers at the American Geophysical Union Meeting in San Francisco EETD Researchers at the American Geophysical Union Meeting in San Francisco December 9-13 December 2013 A number of scientists from the Environmental Energy Technologies Division are presenting papers and posters at the American Geophysical Union Meeting next week in San Francisco. Here are brief descriptions of one talk and two posters by EETD scientists and their colleagues. For more information, go to the AGU meeting site at the link below, where you can look up presentations by scientists from EETD and other divisions of Lawrence Berkeley National Laboratory. Energy-Water Integrated Assessment of the Sacramento Area and a Demonstration of WEAP-LEAP Capability Poster Monday, December 9, 2013, 8 AM - 12 PM Hall A-C Moscone South Researchers from EETD and partner institutions report on a new basin-scale

311

A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles  

Open Energy Info (EERE)

Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Geological And Geophysical Appraisal Of The Baca Geothermal Field, Valles Caldera, New Mexico Details Activities (10) Areas (2) Regions (0) Abstract: The Baca location #1 geothermal field is located in north-central New Mexico within the western half of the Plio-Pleistocene Valles Caldera. Steam and hot water are produced primarily from the northeast-trending Redondo Creek graben, where downhole temperatures exceed 260°C at depths of less than 2 km. Stratigraphically the reservoir region can be described as a five-layer sequence that includes Tertiary and Quaternary volcanic rocks, and Mesozoic and Tertiary sediments overlying Precambrian granitic

312

Geophysical technique for mineral exploration and discrimination based on electromagnetic methods and associated systems  

DOE Patents (OSTI)

Mineral exploration needs a reliable method to distinguish between uneconomic mineral deposits and economic mineralization. A method and system includes a geophysical technique for subsurface material characterization, mineral exploration and mineral discrimination. The technique introduced in this invention detects induced polarization effects in electromagnetic data and uses remote geophysical observations to determine the parameters of an effective conductivity relaxation model using a composite analytical multi-phase model of the rock formations. The conductivity relaxation model and analytical model can be used to determine parameters related by analytical expressions to the physical characteristics of the microstructure of the rocks and minerals. These parameters are ultimately used for the discrimination of different components in underground formations, and in this way provide an ability to distinguish between uneconomic mineral deposits and zones of economic mineralization using geophysical remote sensing technology.

Zhdanov; Michael S. (Salt Lake City, UT)

2008-01-29T23:59:59.000Z

313

Status of data, major results, and plans for geophysical activities, Yucca Mountain Project  

Science Conference Proceedings (OSTI)

This report describes past and planned geophysical activities associated with the Yucca Mountain Project and is intended to serve as a starting point for integration of geophysical activities. This report relates past results to site characterization plans, as presented in the Yucca Mountain Site Characterization Plan (SCP). This report discusses seismic exploration, potential field methods, geoelectrical methods, teleseismic data collection and velocity structural modeling, and remote sensing. This report discusses surface-based, airborne, borehole, surface-to-borehole, crosshole, and Exploratory Shaft Facility-related activities. The data described in this paper, and the publications discussed, have been selected based on several considerations; location with respect to Yucca Mountain, whether the success or failure of geophysical data is important to future activities, elucidation of features of interest, and judgment as to the likelihood that the method will produce information that is important for site characterization. 65 refs., 19 figs., 12 tabs.

Oliver, H.W. [Geological Survey, Menlo Park, CA (USA); Hardin, E.L. [Science Applications International Corp., Las Vegas, NV (USA); Nelson, P.H. [Geological Survey, Denver, CO (USA)] [eds.

1990-07-01T23:59:59.000Z

314

Sulfur polymer cement stabilization of elemental mercury mixed waste  

SciTech Connect

Elemental mercury, contaminated with radionuclides, is a problem throughout the Department of Energy (DOE) complex. This report describes the development and testing of a process to immobilize elemental mercury, contaminated with radionuclides, in a form that is non-dispersible, will meet EPA leaching criteria, and has low mercury vapor pressure. In this stabilization and solidification process (patent pending) elemental mercury is mixed with an excess of powdered sulfur polymer cement (SPC) and additives in a vessel and heated to {approximately}35 C, for several hours, until all of the mercury is converted into mercuric sulfide (HgS). Additional SPC is then added and the mixture raised to 135 C, resulting in a homogeneous molten liquid which is poured into a suitable mold where is cools and solidifies. The final stabilized and solidified waste forms were characterized by powder X-ray diffraction, as well as tested for leaching behavior and mercury vapor pressure. During this study the authors have processed the entire inventory of mixed mercury waste stored at Brookhaven National Laboratory (BNL).

Melamed, D.; Fuhrmann, M.; Kalb, P.; Patel, B.

1998-04-01T23:59:59.000Z

315

Carbon dioxide sequestration in cement kiln dust through mineral carbonation  

Science Conference Proceedings (OSTI)

Carbon sequestration through the formation of carbonates is a potential means to reduce CO{sub 2} emissions. Alkaline industrial solid wastes typically have high mass fractions of reactive oxides that may not require preprocessing, making them an attractive source material for mineral carbonation. The degree of mineral carbonation achievable in cement kiln dust (CKD) under ambient temperatures and pressures was examined through a series of batch and column experiments. The overall extent and potential mechanisms and rate behavior of the carbonation process were assessed through a complementary set of analytical and empirical methods, including mass change, thermal analysis, and X-ray diffraction. The carbonation reactions were carried out primarily through the reaction of CO{sub 2} with Ca(OH){sub 2}, and CaCO{sub 3} was observed as the predominant carbonation product. A sequestration extent of over 60% was observed within 8 h of reaction without any modifications to the waste. Sequestration appears to follow unreacted core model theory where reaction kinetics are controlled by a first-order rate constant at early times; however, as carbonation progresses, the kinetics of the reaction are attenuated by the extent of the reaction due to diffusion control, with the extent of conversion never reaching completion. 35 refs., 3 figs., 1 tab.

Deborah N. Huntzinger; John S. Gierke; S. Komar Kawatra; Timothy C. Eisele; Lawrence L. Sutter [University of Michigan, Ann Arbor, MI (United States). Department of Civil and Environmental Engineering

2009-03-15T23:59:59.000Z

316

Bottom-up Representation of Industrial Energy Efficiency Technologies in Integrated Assessment Models for the Cement Sector  

E-Print Network (OSTI)

St. Louis, Missouri. Energy Technology Support Unit (ETSU),de Beer, 1997. "Energy Efficient Technologies in Industry -and MAIN, 1993. “Energy Technology in the Cement Industrial

Sathaye, J.

2011-01-01T23:59:59.000Z

317

Geophysical Surveys of a Known Karst Feature, Oak Ridge Y-12 Plant, Oak Ridge, Tennessee  

SciTech Connect

Geophysical data were acquired at a site on the Oak Ridge Reservation, Tennessee to determine the characteristics of a mud-filled void and to evaluate the effectiveness of a suite of geophysical methods at the site. Methods that were used included microgravity, electrical resistivity, and seismic refraction. Both microgravity and resistivity were able to detect the void as well as overlying structural features. The seismic data provide bedrock depth control for the other two methods, and show other effects that are caused by the void.

Carpenter, P.J.; Carr, B.J.; Doll, W.E.; Kaufmann, R.D.; Nyquist, J.E.

1999-11-14T23:59:59.000Z

318

Geophysical Surveys of a Known Karst Feature, Oak Ridge Y-12 Plant, Oak Ridge, Tennessee  

SciTech Connect

Geophysical data were acquired at a site on the Oak Ridge Reservation, Tennessee to determine the characteristics of a mud-filled void and to evaluate the effectiveness of a suite of geophysical methods at the site. Methods that were used included microgravity, electrical resistivity, and seismic refraction. Both microgravity and resistivity were able to detect the void as well as overlying structural features. The seismic data provide bedrock depth control for the other two methods, and show other effects that are caused by the void.

Doll, W.E.; Nyquist, J.E.; Carpenter, P.J.; Kaufmann, R.D.; Carr, B.J.

1998-12-01T23:59:59.000Z

319

Mapping groundwater contamination using dc resistivity and VLF geophysical methods -- A case study  

SciTech Connect

Geophysical methods can be helpful in mapping areas of contaminated soil and groundwater. Electrical resistivity and very low-frequency electromagnetic induction (VLF) surveys were carried out at a site of shallow hydrocarbon contamination in Utah County, Utah. Previously installed monitoring wells facilitated analysis of water chemistry to enhance interpretation of the geophysical data. The electrical resistivity and VLF data correlate well, and vertical cross-sections and contour maps generated from these data helped map the contaminant plume, which was delineated as an area of high interpreted resistivities.

Benson, A.K.; Payne, K.L.; Stubben, M.A. [Brigham Young Univ., Provo, UT (United States). Dept. of Geology and Geophysics

1997-01-01T23:59:59.000Z

320

Cementing of geothermal wells. Progress report No. 12, January-March, 1979  

DOE Green Energy (OSTI)

Work to implement the program plan for the development of improved high temperature cementing materials for geothermal wells is continuing. Results from initial tests in the Dynamic Brine Exposure Testing Apparatus (D-BETA) are available. Based upon initial data, the rate at which cement coupons undergo change in the D-BETA is between that of the static tests and the dynamic exposures at East Mesa. Several cementing compositions have been formulated with chemical, physical and mechanical properties to withstand the existing geothermal conditions. The pumpability of three formulations has been demonstrated and the materials have been submitted to NBS for additional evaluation. The effect of Al/sub 2/O/sub 3/, Fe/sub 2/O/sub 3/, SO/sub 3/, Na/sub 2/CO/sub 3/ and Na/sub 2/SO/sub 4/ on different binders were studied at Colorado School of Mines. The results were found to range from deleterious to beneficial. Phosphate-bonded cements have been produced at the University of Rhode Island from a glass containing 7% Na/sub 2/O, 24% CaO, 24% Al/sub 2/O/sub 3/ and 45% SiO/sub 2/. Preliminary tests indicate that the material sets in several hours and appears to have some high temperature stability. Tests performed on hydrothermal cements indicate six formulations that are pumpable as long as three hours at 316/sup 0/C. Two formulations, Al/sub 2/O/sub 3/ and ZrO/sub 2/, have been chosen for use at temperatures above 300/sup 0/C. Polymer concentrates containing cement fillers have been found to be hydrothermally stable in 300/sup 0/C brine. Recommended standards for evaluating geothermal well cements have been developed by NBS. (MHR)

Not Available

1979-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Geothermal Geophysical Research in Electrical Methods at UURI  

DOE Green Energy (OSTI)

The principal objective of electrical geophysical research at UURI has been to provide reliable exploration and reservoir assessment tools for the shallowest to the deepest levels of interest in geothermal fields. Three diverse methods are being considered currently: magnetotellurics (MT, and CSAMT), self-potential, and borehole resistivity. Primary shortcomings in the methods addressed have included a lack of proper interpretation tools to treat the effects of the inhomogeneous structures often encountered in geothermal systems, a lack of field data of sufficient accuracy and quantity to provide well-focused models of subsurface resistivity structure, and a poor understanding of the relation of resistivity to geothermal systems and physicochemical conditions in the earth generally. In MT, for example, interpretation research has focused successfully on the applicability of 2-D models in 3-D areas which show a preferred structural grain. Leading computer algorithms for 2-D and 3-D simulation have resulted and are combined with modern methods of regularized inversion. However, 3-D data coverage and interpretation is seen as a high priority. High data quality in our own research surveys has been assured by implementing a fully remote reference with digital FM telemetry and real-time processing with data coherence sorting. A detailed MT profile across Long Valley has mapped a caldera-wide altered tuff unit serving as the primary hydrothermal aquifer, and identified a low-resistivity body in the middle crust under the west moat which corresponds closely with teleseismic delay and low density models. In the CSAMT method, our extensive tensor survey over the Sulphur Springs geothermal system provides valuable structural information on this important thermal regime and allows a fundamental analysis of the CSAMT method in heterogeneous areas. The self-potential (SP) method is promoted as an early-stage, cost-effective, exploration technique for covered hydrothermal resources, of low to high temperature, which has little or no adverse environmental impact and yields specific targets for temperature gradient and fluid chemistry testing. Substantial progress has been made in characterizing SP responses for several known, covered geothermal systems in the Basin and Range and southern Rio Grande Rift, and at identifying likely, causative source areas of thermal fluids. (Quantifying buried SP sources requires detailed knowledge of the resistivity structure, obtainable through DC or CSAMT surveys with 2-D or 3-D modeling.) Borehole resistivity (BHR) methods may help define hot and permeable zones in geothermal systems, trace the flow of cooler injected fluids and determine the degree of-water saturation in vapor dominated systems. At UURI, we develop methods to perform field surveys and to model and interpret various borehole-to-borehole, borehole-to-surface and surface-to-borehole arrays. The status of our BHR research may be summarized as follows: (1) forward modeling algorithms have been developed and published to evaluate numerous resistivity methods and to examine the effects of well-casing and noise; (2) two inverse two-dimensional algorithms have been devised and successfully applied to simulated field data; (3) a patented, multi-array resistivity system has been designed and is under construction; and (4) we are seeking appropriate wells in geothermal and other areas in which to test the methods.

Wannamaker, Philip E.; Wright, Phillip M.

1992-03-24T23:59:59.000Z

322

Support for Cost Analyses on  

NLE Websites -- All DOE Office Websites (Extended Search)

5 Hartwell Ave 5 Hartwell Ave Lexington, MA 02421 Support for Cost Analyses on Solar-Driven High Temperature Thermochemical Water-Splitting Cycles Final Report to: Department of Energy Order DE-DT0000951 Report prepared by TIAX LLC Reference D0535 February 22, 2011 Matt Kromer (Principal Investigator) Kurt Roth Rosalind Takata Paul Chin Copyright 2011, TIAX LLC Notice: This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents

323

Hagit P. Affek Yale University, Dept. of Geology & Geophysics, 210 Whitney Ave. New Haven, CT 06520-8109  

E-Print Network (OSTI)

and Geophysics. · Caltech, Pasadena, CA. 2003-2007. Posdoc in Isotope geochemistry. Department of GeologicalHagit P. Affek Yale University, Dept. of Geology & Geophysics, 210 Whitney Ave. New Haven, CT 06520 Plants: Physiological Role and Isotopic Composition. Adviser: Dan Yakir. Professional experience · Yale

324

Emergency Tests Focus on Lab Radioactivity Analyses  

Science Conference Proceedings (OSTI)

Emergency Tests Focus on Lab Radioactivity Analyses. For Immediate ... Berne. Radioanalytical emergency response exercise. Journal ...

2013-09-05T23:59:59.000Z

325

Recycle of Wastes of Clay Brick Industry for Producing Eco-cement  

E-Print Network (OSTI)

This work aims at recycling of the solid wastes of clay brick industry (WCB) in the manufacture of blended cement. The various characteristics of collected samples of the waste were determined. WCB was ground to different surface areas. Different mixes were designed from the WCB and ordinary Portland cement (OPC). After adding the required amount of water for each mix, the pastes were moulded in 5x5x5cm3 mould. The initial and final setting time were measured. The moulded specimens were cured at room temperature for 24hr, then demoulded and cured at water for the required testing time. The compressive strength for the hardened specimens was measured. The kinetic of the reaction was followed by determining free lime and chemically combined water contents. The obtained results were compared with OPC and different types of blended cement already existing in the market. The results clearly illustrate the suitability of WCB for the production of series of different types of blended cement (green products) having great impact on the energy saving moreover decreasing carbon dioxide content released during cement industry .

Amin, A. M

2010-01-01T23:59:59.000Z

326

Advanced high-temperature lightweight foamed cements for geothermal well completions  

DOE Green Energy (OSTI)

Foamed cement slurries that were prepared by mixing a cementitious material having a Class H cement-to-silica flour ratio of 1.0 in conjunction with a alpha-olefin sulfate foam surfactant and a coconut diethanolamide foam stabilizer were exposed in an autoclave at a temperature of 300/sup 0/C and a hydrostatic pressure of 2000 psi (13.79 MPa). One lightweight slurry having a density of 9.61 lb/gal (1.15 g/cc) yielded a cellular cement having a compressive strength at 24 hr of >1000 psi (6.9 MPa) and a water permeability of approx.10/sup -3/ darcys. The factors responsible for the attainment of these mechanical and physical properties were identified to be well-crystallized truscottite phases and a uniform distribution of discrete fine bubbles. The addition of graphite fiber reinforcement for the cement matrix significantly suppressed any segregation of foam caused by thermal expansion of the air bubbles and further improved the mechanical characteristics of the cured cements.

Sugama, T.; Kukacka, L.E.; Galen, B.G.

1986-04-01T23:59:59.000Z

327

Lightweight CO{sub 2}-resistant cements for geothermal well completions  

DOE Green Energy (OSTI)

Materials formed by acid-base reactions between calcium aluminate compounds and phosphate-containing solutions yield high strength, low permeability and CO{sub 2}-resistant cements when cured in hydrothermal environments. The cementing formulations are pumpable at temperatures up to 150{degrees}C. thereby making their use for well completions technically feasible. When this cementing matrix was exposed in an autoclave containing Na{sub 2}CO{sub 3},-saturated brine for 120 days. <0.4 wt% CaCO{sub 3} was produced. A conventional portland cement-based well completion material will form {approximately}10 wt% CACO, after only 7 days exposure. The addition of hollow aluminosilicate microspheres to the uncured matrix constituents yields slurries with densities as low as {approximately} 1.2 g/cc which cure to produce materials with properties meeting die criteria for well cementing. These formulations also exhibit low rates of carbonation. Laboratory characterization is nearing completion. engineering scale-up is underway, and plans for field testing in a variety of geothermal fluids are being made.

Kukacka, L.E.; Sugama, T.

1995-02-01T23:59:59.000Z

328

Cementing of geothermal wells. Progress report No. 11, October-December 1978  

DOE Green Energy (OSTI)

In a one month shake-down test at East Mesa, 32 cement formulations were exposed to flowing brine at 150/sup 0/C and 95 psig. Based upon the results from this test, 15 formulations were selected for evaluation in a 2 year test. Experimental work indicates that none of the cements under consideration cause severe corrosion to steel casing. Compared with the possible corrosive attack on the steel casing by the geothermal environment, the corrosive effects of the cement are minimal. A promising cementing composition has been sent to the National Bureau of Standards for additional tests, and at least one more composition will be submitted. Pumpability tests performed on hydrothermal cements indicate several formulations that are pumpable for at least 2 hr at 316/sup 0/C. Polymer concrete samples containing 50 wt% styrene - 35 wt% acrylonitrile - 5 wt% acrylamide - 10 wt% divinyl benzene have not shown any reduction in strength after exposure to 25% brine at 240/sup 0/C for 8 months. This is the highest strength formulation to date and is the first formulation that has not exhibited any strength reduction after brine exposure. Strengths of 204 MPa and 162 MPa were measured at 20/sup 0/ and 150/sup 0/C, respectively, after 8 months in brine.

Steinberg, M.; Kukacka, L.E.

1979-06-01T23:59:59.000Z

329

Geothermal well cements: current status of R and D and downhole testing  

DOE Green Energy (OSTI)

The status as of October 1981 of the program to develop and test geothermal well cementing materials. The program represents the most comprehensive and thorough examination of the geothermal cementing problem undertaken thus far. To date, 27 cements identified in an R and D phase of the program or supplied by industry have been evaluated in laboratory tests. Sixteen of these materials were selected for downhole investigations currently in progress in Mexico at Cerro Prieto. Data for 3 months exposures to flowing brine at 210{sup 0}C are available. Most of the cements continue to meet the strength and permeability acceptance criteria. These results should be reassuring to operators who are using such slurries. Further evaluations are planned after 6 and 12 months exposures. Contingent upon these results, tests will be initiated at 350{sup 0}C. Since many of the cements were formulated specifically for use at temperatures above 300/sup 0/C, it is expected that significant property improvements may be observed as the downhole temperature is increased.

Kukacka, L.E.

1981-11-01T23:59:59.000Z

330

Photovoltaics: Life-cycle Analyses  

DOE Green Energy (OSTI)

Life-cycle analysis is an invaluable tool for investigating the environmental profile of a product or technology from cradle to grave. Such life-cycle analyses of energy technologies are essential, especially as material and energy flows are often interwoven, and divergent emissions into the environment may occur at different life-cycle-stages. This approach is well exemplified by our description of material and energy flows in four commercial PV technologies, i.e., mono-crystalline silicon, multi-crystalline silicon, ribbon-silicon, and cadmium telluride. The same life-cycle approach is applied to the balance of system that supports flat, fixed PV modules during operation. We also discuss the life-cycle environmental metrics for a concentration PV system with a tracker and lenses to capture more sunlight per cell area than the flat, fixed system but requires large auxiliary components. Select life-cycle risk indicators for PV, i.e., fatalities, injures, and maximum consequences are evaluated in a comparative context with other electricity-generation pathways.

Fthenakis V. M.; Kim, H.C.

2009-10-02T23:59:59.000Z

331

Geophysical evidence for gas hydrates in the deep water of the South Caspian Basin, Azerbaijan  

E-Print Network (OSTI)

Geophysical evidence for gas hydrates in the deep water of the South Caspian Basin, Azerbaijan C the South Caspian Sea, offshore Azerbaijan, document for the ®rst time in the deep water (up to 650 m Caspian Sea. The Absheron block, named after the nearby Absheron Peninsula in Azerbaijan, is situated

Knapp, Camelia Cristina

332

Assessment of surface geophysical methods in geothermal exploration and recommendations for future research  

DOE Green Energy (OSTI)

The four classes of geophysical methods considered are: passive seismic methods; active seismic methods; natural field electrical and electromagnetic methods; and, controlled-source electrical and electromagnetic methods. Areas of rsearch for improvement of the various techniques for geothermal exploration are identified. (JGB)

Goldstein, N.E.; Norris, R.A.; Wilt, M.J.

1978-01-01T23:59:59.000Z

333

CV-Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex, Louisiana  

E-Print Network (OSTI)

chemistry & Stable isotopes Postdoc 1998-2001 APPOINTMENTS 2012- Charles L. Jones Professor in Geology Geology and Earth System History for undergraduate students; Stable Isotope Geochemistry and Carbonate1 CV- Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex

Bao, Huiming

334

CV-Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex, Louisiana  

E-Print Network (OSTI)

1 CV- Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex Palaeontology & Stratigraphy B. Sc. 1982-1986 Nanjing Institute of Geology and Paleontology, Academia Sinica Calcareous Algae & carbonate sedimentology M.Sc. 1986-1989 Princeton University Stable isotope geochemistry

Bao, Huiming

335

CV-Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex, Louisiana  

E-Print Network (OSTI)

chemistry & Stable isotopes Postdoc 1998-2001 APPOINTMENTS 2012- Charles L. Jones Professor in Geology, 2013, Oxygen isotope composition of meltwater from a Neoproterozoic glaciation in South China. Geology1 CV- Huiming Bao Department of Geology & Geophysics, E235 Howe-Russell Geoscience Complex

Bao, Huiming

336

Major results of geophysical investigations at Yucca Mountain and vicinity, southern Nevada  

SciTech Connect

In the consideration of Yucca Mountain as a possible site for storing high level nuclear waste, a number of geologic concerns have been suggested for study by the National Academy of Sciences which include: (1) natural geologic and geochemical barriers, (2) possible future fluctuations in the water table that might flood a mined underground repository, (3) tectonic stability, and (4) considerations of shaking such as might be caused by nearby earthquakes or possible volcanic eruptions. This volume represents the third part of an overall plan of geophysical investigation of Yucca Mountain, preceded by the Site Characterization Plan (SCP; dated 1988) and the report referred to as the Geophysical White Paper, Phase 1, entitled Status of Data, Major Results, and Plans for Geophysical Activities, Yucca Mountain Project (Oliver and others, 1990). The SCP necessarily contained uncertainty about applicability and accuracy of methods then untried in the Yucca Mountain volcano-tectonic setting, and the White Paper, Phase 1, focused on summarization of survey coverage, data quality, and applicability of results. For the most part, it did not present data or interpretation. The important distinction of the current volume lies in presentation of data, results, and interpretations of selected geophysical methods used in characterization activities at Yucca Mountain. Chapters are included on the following: gravity investigations; magnetic investigations; regional magnetotelluric investigations; seismic refraction investigations; seismic reflection investigations; teleseismic investigations; regional thermal setting; stress measurements; and integration of methods and conclusions. 8 refs., 60 figs., 2 tabs.

Oliver, H.W.; Ponce, D.A. [eds.] [Geological Survey, Menlo Park, CA (United States); Hunter, W.C. [ed.] [Geological Survey, Denver, CO (United States). Yucca Mountain Project Branch

1995-12-31T23:59:59.000Z

337

Geological and geophysical studies in Grass Valley, Nevada. Preliminary open file report  

DOE Green Energy (OSTI)

The geologic setting, geochemistry, and heat flow of the Leach Hot Springs area are discussed. Geophysical data is presented under the following section headings: survey lines; presentation of data; gravity survey; magnetic survey; self-potential; bipole-dipole apparent resistivity and apparent conductance; electric field ratio tellurics; dipole-dipole resistivity; magnetotellurics; seismological methods; seismic data and preliminary interpretation. (JGB)

Beyer, H.; Dey, A.; Liaw, A.; Majer, E.; McEvilly, T.V.; Morrison, H.F.; Wollenberg, H.

1976-09-01T23:59:59.000Z

338

GEOPHYSICS, VOL. 64, NO. 5 (SEPTEMBER-OCTOBER 1999); P. 13471348 Computers and creativity  

E-Print Network (OSTI)

GEOPHYSICS, VOL. 64, NO. 5 (SEPTEMBER-OCTOBER 1999); P. 1347­1348 Computers and creativity John A. Scales and Roel Snieder "The real danger is not that computers will begin to think like men, but that men will begin to think like computers."--Sydney J. Harris "Technical skill is mastery of complexity while

Scales, John

339

Investigation of novel geophysical techniques for monitoring CO2 movement during sequestration  

Science Conference Proceedings (OSTI)

Cost effective monitoring of reservoir fluid movement during CO{sub 2} sequestration is a necessary part of a practical geologic sequestration strategy. Current petroleum industry seismic techniques are well developed for monitoring production in petroleum reservoirs. The cost of time-lapse seismic monitoring can be born because the cost to benefit ratio is small in the production of profit making hydrocarbon. However, the cost of seismic monitoring techniques is more difficult to justify in an environment of sequestration where the process produces no direct profit. For this reasons other geophysical techniques, which might provide sufficient monitoring resolution at a significantly lower cost, need to be considered. In order to evaluate alternative geophysical monitoring techniques we have undertaken a series of numerical simulations of CO{sub 2} sequestration scenarios. These scenarios have included existing projects (Sleipner in the North Sea), future planned projects (GeoSeq Liberty test in South Texas and Schrader Bluff in Alaska) as well as hypothetical models based on generic geologic settings potentially attractive for CO{sub 2} sequestration. In addition, we have done considerable work on geophysical monitoring of CO{sub 2} injection into existing oil and gas fields, including a model study of the Weyburn CO{sub 2} project in Canada and the Chevron Lost Hills CO{sub 2} pilot in Southern California (Hoversten et al. 2003). Although we are specifically interested in considering ''novel'' geophysical techniques for monitoring we have chosen to include more traditional seismic techniques as a bench mark so that any quantitative results derived for non-seismic techniques can be directly compared to the industry standard seismic results. This approach will put all of our finding for ''novel'' techniques in the context of the seismic method and allow a quantitative analysis of the cost/benefit ratios of the newly considered methods compared to the traditional, more expensive, seismic technique. The Schrader Bluff model was chosen as a numerical test bed for quantitative comparison of the spatial resolution of various geophysical techniques being considered for CO{sub 2} sequestration monitoring. We began with a three dimensional flow simulation model provided by BP Alaska of the reservoir and developed a detailed rock-properties model from log data that provides the link between the reservoir parameters (porosity, pressure, saturations, etc.) and the geophysical parameters (velocity, density, electrical resistivity). The rock properties model was used to produce geophysical models from the flow simulations.

Hoversten, G. Michael; Gasperikova, Erika

2003-10-31T23:59:59.000Z

340

Geomechanical analyses to investigate wellbore/mine interactions in the Potash Enclave of Southeastern New Mexico.  

Science Conference Proceedings (OSTI)

Geomechanical analyses have been performed to investigate potential mine interactions with wellbores that could occur in the Potash Enclave of Southeastern New Mexico. Two basic models were used in the study; (1) a global model that simulates the mechanics associated with mining and subsidence and (2) a wellbore model that examines the resulting interaction impacts on the wellbore casing. The first model is a 2D approximation of a potash mine using a plane strain idealization for mine depths of 304.8 m (1000 ft) and 609.6 m (2000 ft). A 3D wellbore model then considers the impact of bedding plane slippage across single and double cased wells cemented through the Salado formation. The wellbore model establishes allowable slippage to prevent casing yield.

Ehgartner, Brian L.; Bean, James E. (Sandia Staffing Alliance, LLC, Albuquerque, NM); Arguello, Jose Guadalupe, Jr.; Stone, Charles Michael

2010-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Accuracy of Atmospheric Angular Momentum Estimates from Operational Analyses  

Science Conference Proceedings (OSTI)

Modern, high resolution atmospheric and geodetic data are finding increasing use in geophysical studies of the angular momentum balance of the earth-atmosphere system. Such studies require knowledge of the level of uncertainty associated with ...

Richard D. Rosen; Dayid A. Salstein; Alvin J. Miller; Klaus Arpe

1987-08-01T23:59:59.000Z

342

New microtextural criterion for differentiation of compaction and early cementation in fine-grained limestones  

SciTech Connect

Mechanisms of porosity reduction in fine-grained limestones (micrites), the most abundant type of limestone, have been difficult to evaluate because of the fine crystal sizes. Scanning electron microscopy reveals common minute voids termed microfenestrae ({approximately} 1.5-40{mu}m diameter) in Holocene lime muds from all marine carbonate environments studied. Experimental compaction of lime muds greatly reduces abundance of microfenestrae at pressures less than 10 bar. Thus, the abundance of cement-filled microfenestrae in micrites appears to be a widely applicable criterion for recognition of the extent of cementation prior to significant compaction in any given micrite. Microfenestrae in most Phanerozoic micrites studied are about as common as in Holocene lime muds, suggesting that early cementation is a more important mechanism in micrite porosity reduction than recent views have suggested.

Lasemi, Z.; Boardman, M.R. (Miami Univ., Oxford OH (USA)); Sandberg, P.A. (Univ. of Illinois, Urbana (USA))

1990-04-01T23:59:59.000Z

343

International Best Practices for Pre-Processing and Co-Processing Municipal Solid Waste and Sewage Sludge in the Cement Industry  

E-Print Network (OSTI)

current anthropogenic CO 2 emissions worldwide. Given increasing cement demand and production, the industry’s absolute energy

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

344

Prediction of early heat of hydration of plain and blended cements using neuro-fuzzy modelling techniques  

Science Conference Proceedings (OSTI)

In this study, a new approach based on an adaptive neuro-fuzzy inference system (ANFIS) was presented for the prediction of early heat of hydration of plain and blended cements. Two different type of model is trained and tested using these data. The ... Keywords: ANFIS, Cement, Fuzzy logic, Hydration heat, Neural networks

Abdulhamit Subasi; Ahmet Serdar Yilmaz; Hanifi Binici

2009-04-01T23:59:59.000Z

345

Geophysical framework of the southwestern Nevada volcanic field and hydrogeologic implications  

DOE Green Energy (OSTI)

Gravity and magnetic data, when integrated with other geophysical, geological, and rock-property data, provide a regional framework to view the subsurface geology in the southwestern Nevada volcanic field. The authors have loosely divided the region into six domains based on structural style and overall geophysical character. For each domain, they review the subsurface tectonic and magmatic features that have been inferred or interpreted from previous geophysical work. Where possible, they note abrupt changes in geophysical fields as evidence for potential structural or lithologic control on ground-water flow. They use inferred lithology to suggest associated hydrogeologic units in the subsurface. The resulting framework provides a basis for investigators to develop hypotheses for regional ground-water pathways where no drill-hole information exists. The authors discuss subsurface features in the northwestern part of the Nevada Test Site and west of the Nevada Test Site in more detail to address potential controls on regional ground-water flow away from areas of underground nuclear-weapons testing at Pahute Mesa. Subsurface features of hydrogeologic importance in these areas are (1) the resurgent intrusion below Timber Mountain, (2) a NNE-trending fault system coinciding with western margins of the Silent Canyon and Timber Mountain caldera complexes, (3) a north-striking, buried fault east of Oasis Mountain extending for 15 km, which they call the Hogback fault, and (4) an east-striking transverse fault or accommodation zone that, in part, bounds Oasis Valley basin on the south, which they call the Hot Springs fault. In addition, there is no geophysical nor geologic evidence for a substantial change in subsurface physical properties within a corridor extending from the northwestern corner of the Rainier Mesa caldera to Oasis Valley basin (east of Oasis Valley discharge area). This observation supports the hypothesis of other investigators that regional ground water from Pahute Mesa is likely to follow a flow path that extends southwestward to Oasis Valley discharge area.

Grauch, V.J.S.; Sawyer, D.A.; Fridrich, C.J.; Hudson, M.R.

2000-06-08T23:59:59.000Z

346

A Review of Emerging Energy-efficiency and CO2 Emission-reduction Technologies for Cement and Concrete Production  

E-Print Network (OSTI)

Globally, the cement industry accounts for approximately 5 percent of current man-made carbon dioxide (CO2) emissions. Development of new energy-efficiency and CO2 emission-reduction technologies and their deployment in the market will be key for the cement industry's mid- and long-term climate change mitigation strategies. This paper is an initial effort to compile the available information on process description, energy savings, environmental and other benefits, costs, commercialization status, and references for emerging technologies to reduce the cement industry's energy use and CO2 emissions. This paper consolidates available information on eighteen emerging technologies for the cement industry, with the goal of providing engineers, researchers, investors, cement companies, policy makers, and other interested parties with easy access to a well-structured database of information on these technologies.

Hasanbeigi, A.; Price, L.; Lin, E.

2012-01-01T23:59:59.000Z

347

The investigation of bioactivity and mechanical properties of glass ionomer cements prepared from Al2O3-SiO2 glass and poly(?-glutamic acid)  

Science Conference Proceedings (OSTI)

Theglass ionomer cement as one of the dental cements has been subjected to be widespread application in restoring tooth structure. Most of glass ionomer cements employ the poly(acrylic acid) (PAA) as the liquid phase, but the presence of PAA inhibits ...

Jinkun Liu, Yoshimitsu Kuwahara, Yuki Shirosaki, Toshiki Miyazaki

2013-01-01T23:59:59.000Z

348

ASSESSMENT OF TECHNETIUM LEACHABILITY IN CEMENT STABILIZED BASIN 43 GROUNDWATER BRINE  

SciTech Connect

This report is an initial report on the laboratory effort executed under RPP-PLAN-33338, Test Plan for the Assessment of Technetium Leachability in Cement-Stabilized Basin 43 Groundwater Brine. This report delineates preliminary data obtained under subcontract 21065, release 30, from the RJ Lee Group, Inc., Center for Laboratory Sciences. The report is predicated on CLS RPT-816, Draft Report: Assessment of Technetium Leachability in Cement Stabilized Basin 43 Groundwater Brine. This document will be revised on receipt of the final RJ Lee Group, Inc., Center for Laboratory Sciences report, which will contain data subjected to quality control and quality assurance criteria.

COOKE GA; DUNCAN JB; LOCKREM LL

2008-09-30T23:59:59.000Z

349

Enriched Analyses with Assimilation of SALLJEX Data  

Science Conference Proceedings (OSTI)

This paper aims at generating a set of enriched analyses by assimilating the data collected during the South American Low-Level Jet Experiment (SALLJEX) in southeastern South America during the summer season 2002/03. The analyses are generated ...

Yanina García Skabar; Matilde Nicolini

2009-12-01T23:59:59.000Z

350

A Signal-Inducing Bone Cement for Magnetic Resonance Imaging-Guided Spinal Surgery Based on Hydroxyapatite and Polymethylmethacrylate  

Science Conference Proceedings (OSTI)

The aim of this study was to develop a signal-inducing bone cement for magnetic resonance imaging (MRI)-guided cementoplasty of the spine. This MRI cement would allow precise and controlled injection of cement into pathologic lesions of the bone. We mixed conventional polymethylmethacrylate bone cement (PMMA; 5 ml methylmethacrylate and 12 g polymethylmethacrylate) with hydroxyapatite (HA) bone substitute (2-4 ml) and a gadolinium-based contrast agent (CA; 0-60 {mu}l). The contrast-to-noise ratio (CNR) of different CA doses was measured in an open 1.0-Tesla scanner for fast T1W Turbo-Spin-Echo (TSE) and T1W TSE pulse sequences to determine the highest signal. We simulated MRI-guided cementoplasty in cadaveric spines. Compressive strength of the cements was tested. The highest CNR was (1) 87.3 (SD 2.9) in fast T1W TSE for cements with 4 {mu}l CA/ml HA (4 ml) and (2) 60.8 (SD 2.4) in T1W TSE for cements with 1 {mu}l CA/ml HA (4 ml). MRI-guided cementoplasty in cadaveric spine was feasible. Compressive strength decreased with increasing amounts of HA from 46.7 MPa (2 ml HA) to 28.0 MPa (4 ml HA). An MRI-compatible cement based on PMMA, HA, and CA is feasible and clearly visible on MRI images. MRI-guided spinal cementoplasty using this cement would permit direct visualization of the cement, the pathologic process, and the anatomical surroundings.

Wichlas, Florian, E-mail: florian.wichlas@charite.de; Seebauer, Christian J.; Schilling, Rene [University Charite, Center for Musculoskeletal Surgery (Germany); Rump, Jens [University Charite, Department of Radiology (Germany); Chopra, Sascha S. [University Charite, Center for Musculoskeletal Surgery (Germany); Walter, Thula; Teichgraeber, Ulf K. M. [University Charite, Department of Radiology (Germany); Bail, Hermann J. [University Charite, Center for Musculoskeletal Surgery (Germany)

2012-06-15T23:59:59.000Z

351

Pawnee Nation Energy Option Analyses  

SciTech Connect

Pawnee Nation of Oklahoma Energy Option Analyses In 2003, the Pawnee Nation leadership identified the need for the tribe to comprehensively address its energy issues. During a strategic energy planning workshop a general framework was laid out and the Pawnee Nation Energy Task Force was created to work toward further development of the tribe’s energy vision. The overarching goals of the “first steps” project were to identify the most appropriate focus for its strategic energy initiatives going forward, and to provide information necessary to take the next steps in pursuit of the “best fit” energy options. Description of Activities Performed The research team reviewed existing data pertaining to the availability of biomass (focusing on woody biomass, agricultural biomass/bio-energy crops, and methane capture), solar, wind and hydropower resources on the Pawnee-owned lands. Using these data, combined with assumptions about costs and revenue streams, the research team performed preliminary feasibility assessments for each resource category. The research team also reviewed available funding resources and made recommendations to Pawnee Nation highlighting those resources with the greatest potential for financially-viable development, both in the near-term and over a longer time horizon. Findings and Recommendations Due to a lack of financial incentives for renewable energy, particularly at the state level, combined mediocre renewable energy resources, renewable energy development opportunities are limited for Pawnee Nation. However, near-term potential exists for development of solar hot water at the gym, and an exterior wood-fired boiler system at the tribe’s main administrative building. Pawnee Nation should also explore options for developing LFGTE resources in collaboration with the City of Pawnee. Significant potential may also exist for development of bio-energy resources within the next decade. Pawnee Nation representatives should closely monitor market developments in the bio-energy industry, establish contacts with research institutions with which the tribe could potentially partner in grant-funded research initiatives. In addition, a substantial effort by the Kaw and Cherokee tribes is underway to pursue wind development at the Chilocco School Site in northern Oklahoma where Pawnee is a joint landowner. Pawnee Nation representatives should become actively involved in these development discussions and should explore the potential for joint investment in wind development at the Chilocco site. Financial incentives for project development are generally structured to provide tribes with access to conventional financing mechanisms. Grant funding for project construction is currently difficult to obtain. Substantial new opportunities for bio-fuel development may exist in the next few years with passage of the 2007 Farm Bill, and through opportunities made available through Oklahoma’s new Bio-energy Center. A review of potential alternatives to Pawnee Nation’s current electricity supply scenario revealed that a range of options could be viable. These include the following scenarios: business as usual, alternative supply, negotiate lower rates with City of Pawnee, focus on reducing energy usage, develop electric utility organization. Under any circumstances, Pawnee Nation should purse strategies to reduce energy usage, as this is the simplest means of reducing electric costs and environmental impacts. The research team also recommends that Pawnee Nation initiate some focused discussions with the City of Pawnee, with GRDA, and with IEC to discuss its wholesale supply purchase options. These discussions will better inform the Pawnee Energy Team of the specific pros and cons of its wholesale power supply options, and will assist the Team’s broader decision-making on utility-related issues. The ultimate path chosen by Pawnee Nation will depend on further consideration of priorities and potential barriers by Pawnee Nation’s Energy Team.

Matlock, M.; Kersey, K.; Riding In, C.

2009-07-21T23:59:59.000Z

352

Modeling and Evaluation of Geophysical Methods for Monitoring and Tracking CO2 Migration  

Science Conference Proceedings (OSTI)

Geological sequestration has been proposed as a viable option for mitigating the vast amount of CO{sub 2} being released into the atmosphere daily. Test sites for CO{sub 2} injection have been appearing across the world to ascertain the feasibility of capturing and sequestering carbon dioxide. A major concern with full scale implementation is monitoring and verifying the permanence of injected CO{sub 2}. Geophysical methods, an exploration industry standard, are non-invasive imaging techniques that can be implemented to address that concern. Geophysical methods, seismic and electromagnetic, play a crucial role in monitoring the subsurface pre- and post-injection. Seismic techniques have been the most popular but electromagnetic methods are gaining interest. The primary goal of this project was to develop a new geophysical tool, a software program called GphyzCO2, to investigate the implementation of geophysical monitoring for detecting injected CO{sub 2} at test sites. The GphyzCO2 software consists of interconnected programs that encompass well logging, seismic, and electromagnetic methods. The software enables users to design and execute 3D surface-to-surface (conventional surface seismic) and borehole-to-borehole (cross-hole seismic and electromagnetic methods) numerical modeling surveys. The generalized flow of the program begins with building a complex 3D subsurface geological model, assigning properties to the models that mimic a potential CO{sub 2} injection site, numerically forward model a geophysical survey, and analyze the results. A test site located in Warren County, Ohio was selected as the test site for the full implementation of GphyzCO2. Specific interest was placed on a potential reservoir target, the Mount Simon Sandstone, and cap rock, the Eau Claire Formation. Analysis of the test site included well log data, physical property measurements (porosity), core sample resistivity measurements, calculating electrical permittivity values, seismic data collection, and seismic interpretation. The data was input into GphyzCO2 to demonstrate a full implementation of the software capabilities. Part of the implementation investigated the limits of using geophysical methods to monitor CO{sub 2} injection sites. The results show that cross-hole EM numerical surveys are limited to under 100 meter borehole separation. Those results were utilized in executing numerical EM surveys that contain hypothetical CO{sub 2} injections. The outcome of the forward modeling shows that EM methods can detect the presence of CO{sub 2}.

Daniels, Jeff

2012-11-30T23:59:59.000Z

353

Effects of oil charge on illite dates and stopping quartz cement: calibration of basin models  

E-Print Network (OSTI)

Abstract Effects of oil charge on illite dates and stopping quartz cement: calibration of basin Oil can fill pores in reservoir sandstones at any burial depth by long or short distance migration. There has been a debate since 1920 concerning the effect of oil charge. We have made detailed local

Haszeldine, Stuart

354

Modeling of the Aging Viscoelastic Properties of Cement Paste Using Computational Methods  

E-Print Network (OSTI)

Modeling of the time-dependent behavior of cement paste has always been a difficulty. In the past, viscoelastic behavior of cementitious materials has been primarily attributed to the viscoelastic properties of C-S-H components. Recent experimental results show that C-S-H may not exhibit as much creep and relaxation as previously thought. This requires new consideration of different mechanisms leading to the viscoelastic behavior of cement paste. Thus the objective of this thesis is to build a computational model using finite element method to predict the viscoelastic behavior of cement paste, and using this model, virtual tests can be carried out to improve understanding of the mechanisms of viscoelastic behavior. The primary finding from this thesis is that the apparent viscoelastic behavior due to dissolution of load bearing phases is substantial. The dissolution process occurring during the hydration reaction can change the stress distribution inside cementitious materials, resulting in an apparent viscoelastic behavior of the whole cementitious materials. This finding requires new consideration of mechanisms of time-dependent behavior of cementitious materials regarding the dissolution process of cement paste.

Li, Xiaodan

2012-05-01T23:59:59.000Z

355

Development of a performance-based industrial energy efficiency indicator for cement manufacturing plants.  

SciTech Connect

Organizations that implement strategic energy management programs have the potential to achieve sustained energy savings if the programs are carried out properly. A key opportunity for achieving energy savings that plant managers can take is to determine an appropriate level of energy performance by comparing the plant performance with that of similar plants in the same industry. Manufacturing plants can set energy efficiency targets by using performance-based indicators. The U.S. Environmental Protection Agency (EPA), through its ENERGY STAR{reg_sign} program, has been developing plant energy performance indicators (EPIs) to encourage a variety of U.S. industries to use energy more efficiently. This report describes work with the cement manufacturing industry to provide a plant-level indicator of energy efficiency for assembly plants that produce a variety of products, including Portland cement and other specialty cement products, in the United States. Consideration is given to the role that performance-based indicators play in motivating change; the steps needed to develop indicators, including interacting with an industry to secure adequate data for an indicator; and the actual application and use of an indicator when complete. How indicators are employed in the EPA's efforts to encourage industries to voluntarily improve their use of energy is discussed as well. The report describes the data and statistical methods used to construct the EPI for cement manufacturing plants. Individual equations are presented, as are the instructions for using them in an associated Excel spreadsheet.

Boyd, G.; Decision and Information Sciences

2006-07-21T23:59:59.000Z

356

CSER 96-027: storage of cemented plutonium residue containers in 55 gallon drums  

Science Conference Proceedings (OSTI)

A nuclear criticality safety analysis has been performed for the storage of residual plutonium cementation containers, produced at the Plutonium Finishing Plant, in 55 gallon drums. This CSER increases the limit of total plutonium stored in each 55 gallon drum from 100 to 200 grams.

Watson, W.T.

1997-01-20T23:59:59.000Z

357

Recovery Act Production of Algal BioCrude Oil from Cement Plant Carbon Dioxide  

Science Conference Proceedings (OSTI)

The consortium, led by Sunrise Ridge Algae Inc, completed financial, legal, siting, engineering and environmental permitting preparations for a proposed demonstration project that would capture stack gas from an operating cement plant and convert the carbon dioxide to beneficial use as a liquid crude petroleum substitute and a coal substitute, using algae grown in a closed system, then harvested and converted using catalyzed pyrolysis.

Robert Weber; Norman Whitton

2010-09-30T23:59:59.000Z

358

Recent advances in the development of lightweight CO{sub 2}-resistant well cements  

DOE Green Energy (OSTI)

Regardless of the properties of the cured material, the practical use of advanced cementitious materials for geothermal well completions depends primarily upon the ability to predictably extend the thickening times for the precursor slurries at elevated temperatures to times sufficient to permit conventional placement. Ongoing work at Brookhaven National Laboratory being conducted with assistance from the geothermal industry, indicates that lightweight calcium phosphate cement slurries being developed as CO{sub 2{minus}} resistant well completion materials, can be conventional pumped at temperatures > 100{degrees}C without the addition of retarding admixtures. These slurries consist of mullite-shelled hollow microspheres, calcium aluminate cements and polybasic sodium phosphate. When cured in hydrothermal environments, the slurries yield high strength, low permeability cements which bond well to steel casing. Two compositional factors that affect the thickening times were identified. One is the calcium aluminate cement species that serve as the base reagent in the slurry formulation, and the other is the rate of hydrothermal reaction between the microspheres and the polybasic sodium phosphate solution.

Kukacka, L.E.; Sugama, T.

1995-12-31T23:59:59.000Z

359

Cementing of geothermal wells. Progress report No. 7, October--December 1977  

DOE Green Energy (OSTI)

Progress in work to implement the program plan for the development of improved high temperature cementing materials for geothermal wells is reported. Work on the first element of the program management plan (problem definition) was completed and a report issued. The materials development and property verification phases of the plan are in progress. Plans for the down-hole testing phase of the program are being formulated. The most promising high temperature polymer cement (PC) system identified to date consists of a cross-linked mixture of styrene, acrylonitrile, and acrylamide in conjunction with a sand-cement filler. A study is in progress to optimize the concentrations of the mix components with respect to properties. Work to determine the pumpability of the system is in progress. Samples of PC have been removed after exposure at The Geysers to dry steam at 460/sup 0/F (238/sup 0/C) for 2 yrs. Visual inspection of the specimens indicated little apparent deterioration. The appendix includes five reports from contributing researchers on the development of high temperature cementing materials for geothermal wells.

Steinberg, M.; Kukacka, L.E.

1977-12-01T23:59:59.000Z

360

Development of a performance-based industrial energy efficiency indicator for cement manufacturing plants.  

SciTech Connect

Organizations that implement strategic energy management programs have the potential to achieve sustained energy savings if the programs are carried out properly. A key opportunity for achieving energy savings that plant managers can take is to determine an appropriate level of energy performance by comparing the plant performance with that of similar plants in the same industry. Manufacturing plants can set energy efficiency targets by using performance-based indicators. The U.S. Environmental Protection Agency (EPA), through its ENERGY STAR{reg_sign} program, has been developing plant energy performance indicators (EPIs) to encourage a variety of U.S. industries to use energy more efficiently. This report describes work with the cement manufacturing industry to provide a plant-level indicator of energy efficiency for assembly plants that produce a variety of products, including Portland cement and other specialty cement products, in the United States. Consideration is given to the role that performance-based indicators play in motivating change; the steps needed to develop indicators, including interacting with an industry to secure adequate data for an indicator; and the actual application and use of an indicator when complete. How indicators are employed in the EPA's efforts to encourage industries to voluntarily improve their use of energy is discussed as well. The report describes the data and statistical methods used to construct the EPI for cement manufacturing plants. Individual equations are presented, as are the instructions for using them in an associated Excel spreadsheet.

Boyd, G.; Decision and Information Sciences

2006-07-21T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Capillary porosity depercolation in cement-based materials: Measurement techniques and factors which influence their interpretation  

E-Print Network (OSTI)

the service-life of civil engineering infrastructure has led in many cases to the increased use of low w of cracking at early-ages [1,2]. To minimize the risk of early-age cracking several approaches have been­10] and (4) the utilization of expansive cements or additives that can generate an expansion to mitigate

Bentz, Dale P.

362

LITERATURE SURVEY ON CEMENTS FOR REMEDIATION OF DEFORMED CASING IN GEOTHERMAL WELLS  

DOE Green Energy (OSTI)

Brookhaven National Laboratory was requested to conduct a literature survey for the best available cement to use in the proposed casing patch as part of the Geothermal Drilling Organization (GDO) project on remediation of deformed casings. A total of 50 wells has been identified with deformed production casing in Unocal's portion of The Geysers geothermal field. Reduced internal diameter and casing doglegs result in lost production and the possible need for abandonment. The cause of the deformations is believed to be formation movement along fault planes and/or along weaker layers or interfaces between high impedance contrast media. Apparently, it is unclear whether shear or axial compression is the dominant failure mechanism. A procedure to address the casing deformation and avoid abandonment of these wells has been developed as described in the Geysers Deformed Casing Remediation Proposal. The proposed remediation procedure involves isolation of the zone of interest with an inflatable packer, milling the deformed casing and cementing a 7 inch diameter liner to extend approximately 100 ft above and 100 ft below the milled zone. During the milling operation it is possible that the original cement and surrounding formation may slough away. In order to specify a suitable cement formulation for the casing patch it is first necessary to identify and understand the deformation mechanism/s operating in The Geysers field. Subsequently, the required cement mechanical properties to withstand further deformation of the repaired system must be defined. From this information it can be determined whether available cement formulations meet these requirements. In addition to The Geysers, other geothermal fields are at possible risk of casing deformation due to subsidence, seismic activity, lateral and vertical formation movement or other processes. Therefore, the proposed remediation procedure may have applications in other fields. The literature survey focused on published properties for cements used in geothermal and oil well applications and the experiences of well casing deformation occurring in oil and gas fields. Dr. Mike Bruno of Terralog Technologies kindly supplied a reference list from the DEA (Drilling Engineering Association) 99 Project on Analysis of Well Casing Damage Induced by Reservoir Compaction and Overburden Shear.

ALLAN,M.L.; PHILIPPACOPOULOS,A.J.

1998-11-01T23:59:59.000Z

363

A Hydrologic-geophysical Method for Characterizing Flow and Transport Processes Within The Vadose Zone  

SciTech Connect

The primary purpose of this project was to employ two geophysical imaging techniques, electrical resistivity tomography and cross-borehole ground penetrating radar, to image a controlled infiltration of a saline tracer under unsaturated flow conditions. The geophysical techniques have been correlated to other more traditional hydrologic measurements including neutron moisture measurements and induction conductivity logs. Images that resulted during two successive infiltrations indicate the development of what appear to be preferential pathways through the finer grained materials, although the results could also be produced by cationic capture of free ions in clays. In addition the site as well as the developing solute plume exhibits electrical anisotropy which is likely related to flow properties. However the geologic significance of this phenomenon is still under investigation.

David Alumbaugh; Douglas LaBrecque; James Brainard; T.C. (Jim) Yeh

2004-01-22T23:59:59.000Z

364

Emerging Energy-efficiency and CO{sub 2} Emission-reduction Technologies for Cement and Concrete Production  

Science Conference Proceedings (OSTI)

Globally, the cement industry accounts for approximately 5 percent of current anthropogenic carbon dioxide (CO{sub 2}) emissions. World cement demand and production are increasing significantly, leading to an increase in this industry's absolute energy use and CO{sub 2} emissions. Development of new energy-efficiency and CO{sub 2} emission-reduction technologies and their deployment in the market will be key for the cement industry's mid- and long-term climate change mitigation strategies. This report is an initial effort to compile available information on process description, energy savings, environmental and other benefits, costs, commercialization status, and references for emerging technologies to reduce the cement industry's energy use and CO{sub 2} emissions. Although studies from around the world identify a variety of sector-specific and cross-cutting energy-efficiency technologies for the cement industry that have already been commercialized, information is scarce and/or scattered regarding emerging or advanced energy-efficiency and low-carbon technologies that are not yet commercialized. This report consolidates available information on nineteen emerging technologies for the cement industry, with the goal of providing engineers, researchers, investors, cement companies, policy makers, and other interested parties with easy access to a well-structured database of information on these technologies.

Hasanbeigi, Ali; Price, Lynn; Lin, Elina

2012-04-06T23:59:59.000Z

365

Hydrologic and geophysical studies at Midnite Mine, Wellpinit, WA: Summary of 1995 field season. Report of investigations/1996  

SciTech Connect

The Midnite Mine is an inactive, hard-rock uranium mine on the Spokane Indian Reservation in Washington State. Long-term changes in water quality and the results of slug tests and two geophysical surveys are described. Of the locations monitored, only two exhibited water quality degradation over time. Hydraulic conductivity measurements from slug tests are reported for five additional locations in the bedrock. Relative values of hydraulic conductivity from slug tests agreed well with ranked specific capacity data. A geophysical survey identified buried constructed features that channel subsurface water to a contaminated seep. Historic aerial photos corroborated the results of the geophysical study. A new geophysical technique was successfully used to monitor hydraulic and geochemical responses to a pumping test in saturated waste rock.

Williams, B.C.; Riley, J.A.; Montgomery, J.R.; Robinson, J.A.

1996-06-01T23:59:59.000Z

366

SURFACE GEOPHYSICAL EXPLORATION OF SX TANK FARM AT THE HANFORD SITE RESULTS OF BACKGROUND CHARACTERIZATION WITH MAGNETICS AND ELECTROMAGNETICS  

SciTech Connect

This report presents the results of the background characterization of the cribs and trenches surrounding the SX tank farm prepared by HydroGEOPHYSICS Inc, Columbia Energy & Environmental Services Inc and Washington River Protection Solutions.

MYERS DA; RUCKER D; LEVIT M; CUBBAGE B; HENDERSON C

2009-09-24T23:59:59.000Z

367

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 103, NO. C9, PAGES 18,567-18,589, AUGUST 15, 1998 Analyses of global sea surface temperature 1856{1991  

E-Print Network (OSTI)

that impactsocieties, such as the Sahel drought or the U.S. dust bowl. In our data-driven science the study of longer

Columbia University

368

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 103, NO. C9, PAGES 18,56718,589, AUGUST 15, 1998 Analyses of global sea surface temperature 1856--1991  

E-Print Network (OSTI)

in decadal cycles that impact societies, such as the Sahel drought or the U.S. dust bowl. In our data­driven science the study of longer periods quickly runs into the limita­ tions imposed by data availability

Columbia University

369

Highlights of the 2009 SEG summer research workshop on ""CO2 sequestration geophysics  

SciTech Connect

The 2009 SEG Summer Research Workshop on 'CO{sub 2} Sequestration Geophysics' was held August 23-27, 2009 in Banff, Canada. The event was attended by over 100 scientists from around the world, which proved to be a remarkably successful turnout in the midst of the current global financial crisis and severe corporate travel restrictions. Attendees included SEG President Larry Lines (U. Calgary), and CSEG President John Downton (CGG Veritas), who joined SRW Chairman David Lumley (UWA) in giving the opening welcome remarks at the Sunday Icebreaker. The workshop was organized by an expert technical committee representing a good mix of industry, academic, and government research organizations. The format consisted of four days of technical sessions with over 60 talks and posters, plus an optional pre-workshop field trip to the Columbia Ice Fields to view firsthand the effects of global warming on the Athabasca glacier. Group technical discussion was encouraged by requiring each presenter to limit themselves to 15 minutes of presentation followed by a 15 minute open discussion period. Technical contributions focused on the current and future role of geophysics in CO{sub 2} sequestration, highlighting new research and field-test results with regard to site selection and characterization, monitoring and surveillance, using a wide array of geophysical techniques. While there are too many excellent contributions to mention all individually here, in this paper we summarize some of the key workshop highlights in order to propagate new developments to the SEG community at large.

Huang, Lianjie [Los Alamos National Laboratory; Lumley, David [U. W. AUSTRALIA; Sherlock, Don [CHEVRON; Daley, Tom [LBNL; Lawton, Don [U CALGARY; Masters, Ron [SHELL; Verliac, Michel [SCHLUMBERGER; White, Don [GEOL. SURVEY CANADA

2009-01-01T23:59:59.000Z

370

Karst characterization in a semi-arid region using gravity, seismic, and resistivity geophysical techniques.  

SciTech Connect

We proposed to customize emerging in situ geophysical monitoring technology to generate time-series data during sporadic rain events in a semi-arid region. Electrodes were to be connected to wireless %5Cnodes%22 which can be left in the eld for many months. Embedded software would then increase sampling frequency during periods of rainfall. We hypothesized that this contrast between no-volume ow in karst passageways dur- ing dry periods and partial- or saturated-volume ow during a rain event is detectable by these Wireless Sensor Network (WSN) geophysical nodes, we call this a Wireless Resistivity Network (WRN). The development of new methodologies to characterize semi-arid karst hydrology is intended to augment Sandia National Laboratorys mission to lead e orts in energy technologies, waste disposal and climate security by helping to identify safe and secure regions and those that are at risk. Development and initial eld testing identi ed technological barriers to using WRNs for identifying semi-arid karst, exposing R&D which can be targeted in the future. Gravity, seismic, and resis- tivity surveys elucidated how each technique might e ectively be used to characterize semi-arid karst. This research brings to light the importance and challenges with char- acterizing semi-arid karst through a multi-method geophysical study. As there have been very few studies with this emphasis, this study has expanded the body of practical experience needed to protect the nations water and energy security interests.

Barnhart, Kevin Scott

2013-10-01T23:59:59.000Z

371

Highlights of the 2009 SEG summer research workshop on"CO2 Sequestration Geophysics"  

Science Conference Proceedings (OSTI)

The 2009 SEG Summer Research Workshop on CO2 Sequestration Geophysics was held August 23-27, 2009 in Banff, Canada. The event was attended by over 100 scientists from around the world, which proved to be a remarkably successful turnout in the midst of the current global financial crisis and severe corporate travel restrictions. Attendees included SEG President Larry Lines (U. Calgary), and CSEG President John Downton (CGG Veritas), who joined SRW Chairman David Lumley (UWA) in giving the opening welcome remarks at the Sunday Icebreaker. The workshop was organized by an expert technical committee (see side bar) representing a good mix of industry, academic, and government research organizations. The format consisted of four days of technical sessions with over 60 talks and posters, plus an optional pre-workshop field trip to the Columbia Ice Fields to view firsthand the effects of global warming on the Athabasca glacier (Figures 1-2). Group technical discussion was encouraged by requiring each presenter to limit themselves to 15 minutes of presentation followed by a 15 minute open discussion period. Technical contributions focused on the current and future role of geophysics in CO2 sequestration, highlighting new research and field-test results with regard to site selection and characterization, monitoring and surveillance, using a wide array of geophysical techniques. While there are too many excellent contributions to mention all individually here, in this paper we summarize some of the key workshop highlights in order to propagate new developments to the SEG community at large.

Lumley, D.; Sherlock, D.; Daley, T.; Huang, L.; Lawton, D.; Masters, R.; Verliac, M.; White, D.

2010-01-15T23:59:59.000Z

372

Pore water evolution in oilfield sandstones: constraints from oxygen isotope microanalyses of quartz cement  

E-Print Network (OSTI)

Pore water evolution in oilfield sandstones: constraints from oxygen isotope microanalyses a Department of Geology and Geophysics, University of Edinburgh, Edinburgh EH9 3JW, Scotland, UK b Shell Oxygen isotope microanalyses of authigenic quartz, in combination with temperatures of quartz

Haszeldine, Stuart

373

Sandstone cementation and fluids in hydrocarbon basins R.S. Haszeldinea,*, C.I. Macaulaya  

E-Print Network (OSTI)

of Geology and Geophysics, University of Edinburgh Edinburgh, EH9 3JW, UK b Isotope Geology Unit, SUERC, East-specific and difficult to model in general terms. Combining techniques from petrography, isotopic and ion microprobe; North Sea; permeability; porosity; aquifer; isotope 1. Fluid motion or stasis in basins Two main goals

Haszeldine, Stuart

374

FAQS Job Task Analyses- Chemical Processing  

Energy.gov (U.S. Department of Energy (DOE))

FAQS Job Task Analyses are performed on the Function Area Qualification Standards. The FAQS Job Task Analyses consists of: Developing a comprehensive list of tasks that define the job such as the duties and responsibilities which include determining their levels of importance and frequency. Identifying and evaluating competencies. Last step is evaluating linkage between job tasks and competencies.

375

Bottom-up Representation of Industrial Energy Efficiency Technologies in Integrated Assessment Models for the Cement Sector  

E-Print Network (OSTI)

Cement Industry, An Energy Perspective", U.S. Department ofCost of Conserved Final Energy (US$/GJ) Final CCE includingwithout including non-energy benefits, U.S. steel industry (

Sathaye, J.

2011-01-01T23:59:59.000Z

376

Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in the Cement Industry in China  

E-Print Network (OSTI)

Energy and Emission Paths to 2030. Berkeley, CA: Lawrenceand Opportunities through 2030. Washington, DC: CCAP. Wang,cement industry for 2010-2030 is estimated to be 251 TWh,

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

377

Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network (OSTI)

s Teaming Up to Save Energy guide (U.S. EPA 2006), which isis used throughout this Energy Guide for consistency. For afor Cement Making An ENERGY STAR Guide for Energy and Plant

Worrell, Ernst

2008-01-01T23:59:59.000Z

378

Bottom-up Representation of Industrial Energy Efficiency Technologies in Integrated Assessment Models for the Cement Sector  

E-Print Network (OSTI)

used throughout this Energy Guide for consistency. systemsfor Cement Making, An ENERGY STAR Guide for Energy and PlantGuide to LCC Analysis for Pumping Systems. Hydraulic Institute/Europump/ United States Department of Energy.

Sathaye, J.

2011-01-01T23:59:59.000Z

379

Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers  

E-Print Network (OSTI)

1997 ACEEE Summer Study on Energy Efficiency in Industry.American Council for an Energy-Efficient Economy,Park, NC. Birch, E. , 1990. “Energy Savings in Cement Kiln

Worrell, Ernst

2008-01-01T23:59:59.000Z

380

Assessing the effect of cement-steel interface on well casing corrosion in aqueous CO2 environments  

SciTech Connect

CO{sub 2} leakage is a critical safety concern for geologic storage. In wellbore environments, important leakage paths include the rock-cement and cement-casing interfaces. If the cement-casing interface is filled with escaping CO{sub 2}, the well casing directly contacts the CO{sub 2}. This can cause severe corrosion in the presence of water. This paper studies the effect of steel-cement interface gaps, ranging from 1 mm to 0 um, on casing corrosion. Corrosion kinetics were measured employing electrochemical techniques including linear polarization resistance, open circuit potential and electrochemical impedance spectroscopy. The experimental results showed that the corrosion of steel is not significant where the gap between steel and cement is small ({le} 100 {micro}m). Corrosion rates are controlled by the diffusion of corrosive species (H{sub 2}CO{sub 3} and H{sup +}) along the interface. In contrast, steel corrosion is severe in a broad gap where the corrosion process is limited only by the reaction kinetics of steel and corrosive species. The threshold leading to severe corrosion in terms of the cement-steel interface size (100 {micro}m) was determined. Our research clarifies a corrosion scenario at the cement-steel interface. Casing steel corrosion is initiated when attacked by corrosive species at the cement-steel interface. For relatively tight interfaces, this results in a slow thinning of the casing and expansion of the interface width. If the gap increases beyond the critical threshold size, the corrosion rate increases significantly, and a potentially damaging cycle of corrosion and interface expansion is developed.

Han, Jiabin [Los Alamos National Laboratory; Carey, James W [Los Alamos National Laboratory; Zhang, Jinsuo [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

A literature review of mixed waste components: Sensitivities and effects upon solidification/stabilization in cement-based matrices  

Science Conference Proceedings (OSTI)

The US DOE Oak Ridge Field Office has signed a Federal Facility Compliance Agreement (FFCA) regarding Oak Ridge Reservation (ORR) mixed wastes subject to the land disposal restriction (LDR) provisions of the Resource conservation and Recovery Act. The LDR FFCA establishes an aggressive schedule for conducting treatability studies and developing treatment methods for those ORR mixed (radioactive and hazardous) wastes listed in Appendix B to the Agreement. A development, demonstration, testing, and evaluation program has been initiated to provide those efforts necessary to identify treatment methods for all of the wastes that meet Appendix B criteria. The program has assembled project teams to address treatment development needs in a variety of areas, including that of final waste forms (i.e., stabilization/solidification processes). A literature research has been performed, with the objective of determining waste characterization needs to support cement-based waste-form development. The goal was to determine which waste species are problematic in terms of consistent production of an acceptable cement-based waste form and at what concentrations these species become intolerable. The report discusses the following: hydration mechanisms of Portland cement; mechanisms of retardation and acceleration of cement set-factors affecting the durability of waste forms; regulatory limits as they apply to mixed wastes; review of inorganic species that interfere with the development of cement-based waste forms; review of radioactive species that can be immobilized in cement-based waste forms; and review of organic species that may interfere with various waste-form properties.

Mattus, C.H.; Gilliam, T.M.

1994-03-01T23:59:59.000Z

382

Plant-Wide Energy Efficiency Assessment at the Arizona Portland Cement Plant in Rillito, Arizona  

SciTech Connect

A Department of Energy Plant-wide Assessment was undertaken by Arizona Portland Cement (APC) beginning in May 2005. The assessment was performed at APC’s cement production facility in Rillito, Arizona. The assessment included a compressed air evaluation along with a detailed process audit of plant operations and equipment. The purpose of this Energy Survey was to identify a series of energy cost savings opportunities at the Plant, and provide preliminary cost and savings estimates for the work. The assessment was successful in identifying projects that could provide annual savings of over $2.7 million at an estimated capital cost of $4.3 million. If implemented, these projects could amount to a savings of over 4.9 million kWh/yr and 384,420 MMBtu/year.

Stephen J. Coppinger, P.E.; Bruce Colburn, Ph.D., P.E., CEM

2007-05-17T23:59:59.000Z

383

The effect of gyrolite additive on the hydration properties of Portland cement  

SciTech Connect

The influence of gyrolite additive on the hydration properties of ordinary Portland cement was examined. It was found that the additive of synthetic gyrolite accelerates the early stage of hydration of OPC. This compound binds alkaline ions and serves as a nucleation site for the formation of hydration products (stage I). Later on, the crystal lattice of gyrolite becomes unstable and turns into C-S-H, with higher basicity (C/S {approx} 0.8). This recrystallization process is associated with the consumption of energy (the heat of reaction) and with a decrease in the rate of heat evolution of the second exothermic reaction (stage II). The experimental data and theoretical hypothesis were also confirmed by thermodynamic and the apparent kinetic parameters of the reaction rate of C{sub 3}S hydration calculations. The changes occur in the early stage of hydration of OPC samples and do not have a significant effect on the properties of cement stone.

Eisinas, A., E-mail: anatolijus.eisinas@ktu.lt; Baltakys, K.; Siauciunas, R.

2012-01-15T23:59:59.000Z

384

Cavitation erosion of cobalt based STELLITE alloys, cemented carbides and surface treated low alloy steels  

SciTech Connect

Results are given for erosion-resistance tests involving several STELLITE alloys, cemented carbides and surface-treated alloy steels. It is shown that the cobalt-rich, solid-solution phase of the STELLITE alloys is the basis of their erosion resistance, while the erosion of cemented carbides is predominantly controlled by the binder phase. It is also found that nickel-based tungsten carbides are more erosion-resistant than those based on cobalt. It is demonstrated for the case of the low-alloy steels that surface treatment can improve their erosion rates, and that application of a proprietary nitrocarburizing method to the same steels results in a similar performance improvement only after the initial loss of the compound layer.

Heathcock, C.J. (Cape Town, Univ., Rondebosch, Republic of South Africa); Ball, A.

1981-03-30T23:59:59.000Z

385

DEVELOPMENT & TESTING OF A CEMENT BASED SOLID WASTE FORM USING SYNTHETIC UP-1 GROUNDWATER  

Science Conference Proceedings (OSTI)

The Effluent Treatment Facility (ETF) in the 200 East Area of the Hanford Site is investigating the conversion of several liquid waste streams from evaporator operations into solid cement-based waste forms. The cement/waste mixture will be poured into plastic-lined mold boxes. After solidification the bags will be removed from the molds and sealed for land disposal at the Hanford Site. The RJ Lee Group, Inc. Center for Laboratory Sciences (CLS) at Columbia Basin College (CBC) was requested to develop and test a cementitious solids (CS) formulation to solidify evaporated groundwater brine, identified as UP-1, from Basin 43. Laboratory testing of cement/simulant mixtures is required to demonstrate the viability of cement formulations that reduce the overall cost, minimize bleed water and expansion, and provide suitable strength and cure temperature. Technical support provided mixing, testing, and reporting of values for a defined composite solid waste form. In this task, formulations utilizing Basin 43 simulant at varying wt% solids were explored. The initial mixing consisted of making small ({approx} 300 g) batches and casting into 500-mL Nalgene{reg_sign} jars. The mixes were cured under adiabatic conditions and checked for bleed water and consistency at recorded time intervals over a 1-week period. After the results from the preliminary mixing, four formulations were selected for further study. The testing documentation included workability, bleed water analysis (volume and pH) after 24 hours, expansivity/shrinkage, compressive strength, and selected Toxicity Characteristic Leaching Procedure (TCLP) leach analytes of the resulting solid waste form.

COOKE, G.A.; LOCKREM, L.L.

2006-11-10T23:59:59.000Z

386

Large Scale Computing Requirements for Basic Energy Sciences (An BES / ASCR / NERSC Workshop) Hilton Washington DC/Rockville Meeting Center, Rockville MD 3D Geophysical Imaging  

NLE Websites -- All DOE Office Websites (Extended Search)

Requirements Requirements for Basic Energy Sciences (An BES / ASCR / NERSC Workshop) Hilton Washington DC/Rockville Meeting Center, Rockville MD 3D Geophysical Modeling and Imaging G. A. Newman Lawrence Berkeley National Laboratory February 9 - 10 , 2010 Talk Outline * SEAM Geophysical Modeling Project - Its Really Big! * Geophysical Imaging (Seismic & EM) - Its 10 to 100x Bigger! - Reverse Time Migration - Full Waveform Inversion - 3D Imaging & Large Scale Considerations - Offshore Brazil Imaging Example (EM Data Set) * Computational Bottlenecks * Computing Alternatives - GPU's & FPGA's - Issues Why ? So that the resource industry can tackle grand geophysical challenges (Subsalt imaging, land acquisition, 4-D, CO2, carbonates ......) SEAM Mission Advance the science and technology of applied

387

Fluid Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical  

Open Energy Info (EERE)

Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical Inverse Modeling Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Fluid Imaging of Enhanced Geothermal Systems through Joint 3D Geophysical Inverse Modeling Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Fluid Imaging Project Description EGS has been defined as enhanced reservoirs that have been created to extract economical amounts of heat from low permeability and/or porosity geothermal resources. Critical to the success of EGS is the successful manipulation of fluids in the subsurface to enhance permeability. Knowledge in the change in volume and location of fluids in the rocks and fractures (both natural and induced) will be needed to manage injection strategies such as the number and location of step out wells, in-fill wells and the ratio of injection to production wells. The key difficulty in manipulating fluids has been our inability to reliably predict their locations, movements and concentrations. We believe combining data from MEQ and electrical surveys has the potential to overcome these problems and can meet many of the above needs, economically. Induced seismicity is currently viewed as one of the essential methods for inferring the success of creating fracture permeability and fluid paths during large scale EGS injections. Fluids are obviously playing a critical role in inducing the seismicity, however, other effects such as thermal, geochemical and stress redistribution, etc. may also play a role.

388

Extraction of hydrogenous material from cemented wasteforms by supercritical fluid carbonation  

DOE Green Energy (OSTI)

We are conducting experiments on an innovative transformation concept, using a traditional immobilization technique, that may significantly reduce the volume of hazardous and/or radioactive waste requiring transport and long-term storage. The standard practice at LANL for the stabilization of radioactive salts and residues is to mix them with portland cement, which may include additives to enhance immobilization. Many of these wasteforms do not qualify for transportation or underground disposition, however, because they do not meet Department of Energy regulations for free liquids, decay heat, and/or head-space gases. The present treatment method alters the bulk properties of a cemented wasteform by greatly accelerating the natural cement-aging reactions, producing a chemically stable form having reduced levels of free liquids and organic compounds, as well as reduced porosity, permeability and pH. These structural and chemical changes should allow for greater actinide loading, as well as reduced mobility of the anions, cations, and radionuclides in aboveground and underground repositories.

Rubin, J.B.; Carey, J.W.; Taylor, C.M.V.

1997-11-01T23:59:59.000Z

389

Asbestos--cement pipeline experience at the Raft River Geothermal Project  

DOE Green Energy (OSTI)

The first buried asbestos-cement (Transite) pipeline used in high temperature (approximately 300/sup 0/F) service for transport of geothermal fluids was installed in the fall of 1975, and has seen 1/sup 1///sub 2/ years of service. The line is 4000 ft long, between the deep geothermal wells No. 1 and No. 2, in the Raft River Valley of Idaho. The experience in using this pipeline has been satisfactory, and methods have been developed for minimizing the thermal expansion/thermal shock breakage problems. Recommendations on improved design and construction practices for future pipelines are given. The substantially reduced cost (factor of 2) of an asbestos-cement pipeline compared to the conventional steel pipeline, plus the esthetically desirable effect of a buried pipeline dictate adoption of this type as standard practice for moderate temperature geothermal developments. The Raft River Geothermal Project intends to connect all future wells with pipelines of asbestos-cement, insulated with 1 to 2-inches of urethane, and buried between 2 and 3 ft. Total cost will be approximately $110,000/mile for 10-inch diameter pipe, $125,000/mile for 12-inch diameter.

Miller, L.G.; Kunze, J.F.; Sanders, R.D.

1977-04-01T23:59:59.000Z

390

Experiments Concerning Variability among Subjective Analyses  

Science Conference Proceedings (OSTI)

The variability of subjective (hand) analyses is explored by examining the results of two synoptic laboratory experiments. Two groups of analysts participated in the first experiment, one consisting of 13 senior meteorology students (1977), the ...

Dayton G. Vincent; Herbert Borenstein

1980-10-01T23:59:59.000Z

391

Comparative assessment of five potential sites for magma: hydrothermal systems - geophysics  

DOE Green Energy (OSTI)

As part of a comparative assessment for the Continental Scientific Drilling Program, geophysical data were used, to characterize and evaluate potential magma-hydrothermal targets at five drill sites in the western United States. The sites include Roosevelt Hot Springs, Utah, the Rio Grande Rift, New Mexico, and The Geysers-Clear Lake, Long Valley, and Salton Trough areas, California. This summary discusses the size, depth, temperature, and setting of each potential target, as well as relvant scientific questions about their natures and the certainty of their existence.

Kasameyer, P.

1980-09-02T23:59:59.000Z

392

Effect of Sodium Carboxymethyl Celluloses on Water-catalyzed Self-degradation of 200-degree C-heated Alkali-Activated Cement  

SciTech Connect

We investigated the usefulness of sodium carboxymethyl celluloses (CMC) in promoting self-degradation of 200°C-heated sodium silicate-activated slag/Class C fly ash cementitious material after contact with water. CMC emitted two major volatile compounds, CO2 and acetic acid, creating a porous structure in cement. CMC also reacted with NaOH from sodium silicate to form three water-insensitive solid reaction products, disodium glycolate salt, sodium glucosidic salt, and sodium bicarbonate. Other water-sensitive solid reaction products, such as sodium polysilicate and sodium carbonate, were derived from hydrolysates of sodium silicate. Dissolution of these products upon contact with water generated heat that promoted cement’s self-degradation. Thus, CMC of high molecular weight rendered two important features to the water-catalyzed self-degradation of heated cement: One was the high heat energy generated in exothermic reactions in cement; the other was the introduction of extensive porosity into cement.

Sugama T.; Pyatina, T.

2012-05-01T23:59:59.000Z

393

NETL: Gasification Systems and Industry Analyses Studies  

NLE Websites -- All DOE Office Websites (Extended Search)

Analyses Studies Analyses Studies Gasification Systems Reference Shelf – Systems and Industry Analyses Studies Table of Contents Cost and Performance Baseline for Fossil Energy Power Plants Studies Gasification Systems Program's Systems and Industry Analyses Studies DOE/NETL possesses strong systems analysis and policy-support capabilities. Systems analysis in support of the Gasification Systems Program consists of conducting various energy analyses that provide input to decisions on issues such as national plans and programs, resource use, environmental and energy security policies, technology options for research and development programs, and paths to deployment of energy technology. Cost and Performance Baseline for Fossil Energy Power Plants Studies The Cost and Performance Baseline for Fossil Energy Power Plants studies establish up-to-date estimates for the cost and performance of combustion and gasification based power plants as well as options for co-generating synthetic natural gas and fuels, all with and without carbon dioxide capture and storage. Several ranks of coal are being assessed in process configurations that are based on technology that could be constructed today such that the plant could be operational in the 2010 - 2015 timeframe. The analyses were performed on a consistent technical and economic basis that accurately reflects current market conditions.

394

International Best Practices for Pre-Processing and Co-Processing Municipal Solid Waste and Sewage Sludge in the Cement Industry  

E-Print Network (OSTI)

to reduce the primary (fossil) fuel consumption. ” Inresults with traditional fossil fuels. As cement is blendedof these elements in fossil fuels. The subsections below

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

395

International Best Practices for Pre-Processing and Co-Processing Municipal Solid Waste and Sewage Sludge in the Cement Industry  

E-Print Network (OSTI)

fuel use, significant NOx reduction, lower emissions, lessof cement produced NOx Reduction in all pollutants relatedNOx control, specifically Selective Non-Catalytic Reduction (

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

396

Terracentric Nuclear Fission Reactor: Background, Basis, Feasibility, Structure, Evidence, and Geophysical Implications  

E-Print Network (OSTI)

The background, basis, feasibility, structure, evidence, and geophysical implications of a naturally occurring Terracentric nuclear fission georeactor are reviewed. For a nuclear fission reactor to exist at the center of the Earth, all of the following conditions must be met: (1) There must originally have been a substantial quantity of uranium within Earth's core; (2) There must be a natural mechanism for concentrating the uranium; (3) The isotopic composition of the uranium at the onset of fission must be appropriate to sustain a nuclear fission chain reaction; (4) The reactor must be able to breed a sufficient quantity of fissile nuclides to permit operation over the lifetime of Earth to the present; (5) There must be a natural mechanism for the removal of fission products; (6) There must be a natural mechanism for removing heat from the reactor; (7) There must be a natural mechanism to regulate reactor power level, and; (8) The location of the reactor or must be such as to provide containment and prevent meltdown. Herndon's georeactor alone is shown to meet those conditions. Georeactor existence evidence based upon helium measurements and upon antineutrino measurements is described. Geophysical implications discussed include georeactor origin of the geomagnetic field, geomagnetic reversals from intense solar outbursts and severe Earth trauma, as well as georeactor heat contributions to global dynamics.

J. Marvin Herndon

2013-08-23T23:59:59.000Z

397

Radioactive Waste Isolation in Salt: Peer review of documents dealing with geophysical investigations  

Science Conference Proceedings (OSTI)

The Salt Repository Project, a US Department of Energy program to develop a mined repository in salt for high-level radioactive waste, is governed by a complex and sometimes inconsistent array of laws, administrative regulations, guidelines, and position papers. In conducting multidisciplinary peer reviews of contractor documents in support of this project, Argonne National Laboratory has needed to inform its expert reviewers of these governmental mandates, with particular emphasis on the relationship between issues and the technical work undertaken. This report acquaints peer review panelists with the regulatory framework as it affects their reviews of site characterization plans and related documents, including surface-based and underground test plans. Panelists will be asked to consider repository performance objectives and issues as they judge the adequacy of proposed geophysical testing. All site-specific discussions relate to the Deaf Smith County site in Texas, which was approved for site characterization by the President in May 1986. Natural processes active at the Deaf Smith County site and the status of geophysical testing near the site are reviewed briefly. 25 refs., 4 figs., 5 tabs.

McGinnis, L.D.; Bowen, R.H.

1987-03-01T23:59:59.000Z

398

Post-Injection Geophysical Evaluation of the Winding Ridge Site CRADA 98-F012, Final Report  

SciTech Connect

Acid mine drainage (AMD) from underground mines is a major environmental problem. The disposal of coal combustion by-products (CCB) is also a major national problem due to the large volumes produced annually and the economics associated with transportation and environmentally safe disposal. The concept of returning large volumes of the CCB to their point of origin, underground mines, and using the typically alkaline and pozzolanic attributes of the waste material for the remediation of AMD has been researched rather diligently during the past few years by various federal and state agencies and universities. As the result, the State of Maryland initiated a full-scale demonstration of this concept in a small, 5-acre, unmapped underground mine located near Friendsville, MD. Through a cooperative agreement between the State of Maryland and the U.S. Department of Energy, several geophysical techniques were evaluated as potential tools for the post-injection evaluation of the underground mine site. Three non-intrusive geophysical surveys, two electromagnetic (EM) techniques and magnetometry, were conducted over the Frazee Mine, which is located on Winding Ridge near Friendsville, MD. The EM surveys were conducted to locate ground water in both mine void and overburden. The presence of magnetite, which is naturally inherent to CCB'S due to the combustion process and essentially transparent in sedimentary rock, provided the reason for using magnetometry to locate the final resting place of the CCB grout.

Connie Lyons; Richard Current; Terry Ackman

1998-09-16T23:59:59.000Z

399

Comparison of Geophysical Model Functions for SAR Wind Speed Retrieval in Japanese Coastal Waters  

E-Print Network (OSTI)

Abstract: This work discusses the accuracies of geophysical model functions (GMFs) for retrieval of sea surface wind speed from satellite-borne Synthetic Aperture Radar (SAR) images in Japanese coastal waters characterized by short fetches and variable atmospheric stability conditions. In situ observations from two validation sites, Hiratsuka and Shirahama, are used for comparison of the retrieved sea surface wind speeds using CMOD (C-band model)4, CMOD_IFR2, CMOD5 and CMOD5.N. Of all the geophysical model functions (GMFs), the latest C-band GMF, CMOD5.N, has the smallest bias and root mean square error at both sites. All of the GMFs exhibit a negative bias in the retrieved wind speed. In order to understand the reason for this bias, all SAR-retrieved wind speeds are separated into two categories: onshore wind (blowing from sea to land) and offshore wind (blowing from land to sea). Only offshore winds were found to exhibit the large negative bias, and short fetches from the coastline may be a possible reason for this. Moreover, it is clarified that in both the unstable and stable conditions, CMOD5.N has atmospheric stability effectiveness, and can keep the same accuracy with CMOD5 in the neutral condition. In short, at the moment, CMOD5.N is thought to be the most promising GMF

Yuko Takeyama; Teruo Ohsawa; Katsutoshi Kozai; Charlotte Bay Hasager; Merete Badger

2013-01-01T23:59:59.000Z

400

Supplement Analyses (SA) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Services » NEPA Documents » Supplement Analyses (SA) Services » NEPA Documents » Supplement Analyses (SA) Supplement Analyses (SA) A document that DOE prepares in accordance with DOE NEPA regulations (10 CFR 1021.314(c)) to determine whether a supplemental or new EIS should be prepared pursuant to CEQ NEPA regulations (40 CFR 1502.9(c). If you have any trouble finding a specific document, please contact AskNEPA@hq.doe.gov for assistance. Documents Available for Download October 10, 2013 EA-1812: Final Supplement Analysis Haxtun Wind Energy Project, Logan and Phillips Counties, CO September 10, 2013 EIS-0310-SA-02: Supplement Analysis Nuclear Infrastructure Programmatic Environmental Impact Statement Supplement Analysis Determination for Plutonium-238 Production for Radioisotope Power Systems June 14, 2013 EA-1562-SA-1: Supplement Analysis

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Waste-form development for conversion to portland cement at Los Alamos National Laboratory (LANL) Technical Area 55 (TA-55)  

Science Conference Proceedings (OSTI)

The process used at TA-55 to cement transuranic (TRU) waste has experienced several problems with the gypsum-based cement currently being used. Specifically, the waste form could not reliably pass the Waste Isolation Pilot Plant (WIPP) prohibition for free liquid and the Environmental Protection Agency (EPA)-Toxicity Characteristic Leaching Procedure (TCLP) standard for chromium. This report describes the project to develop a portland cement-based waste form that ensures compliance to these standards, as well as other performance standards consisting of homogeneous mixing, moderate hydration temperature, timely initial set, and structural durability. Testing was conducted using the two most common waste streams requiring cementation as of February 1994, lean residue (LR)- and oxalate filtrate (OX)-based evaporator bottoms (EV). A formulation with a pH of 10.3 to 12.1 and a minimum cement-to-liquid (C/L) ratio of 0.80 kg/l for OX-based EV and 0.94 kg/L for LR-based EV was found to pass the performance standards chosen for this project. The implementation of the portland process should result in a yearly cost savings for raw materials of approximately $27,000 over the gypsum process.

Veazey, G.W.; Schake, A.R.; Shalek, P.D.; Romero, D.A.; Smith, C.A.

1996-10-01T23:59:59.000Z

402

Percutaneous Vertebroplasty and Bone Cement Leakage: Clinical Experience with a New High-Viscosity Bone Cement and Delivery System for Vertebral Augmentation in Benign and Malignant Compression Fractures  

Science Conference Proceedings (OSTI)

The aim of this study was to assess the feasibility of and venous leakage reduction in percutaneous vertebroplasty (PV) using a new high-viscosity bone cement (PMMA). PV has been used effectively for pain relief in osteoporotic and malignant vertebral fractures. Cement extrusion is a common problem and can lead to complications. Sixty patients (52 female; mean age, 72.2 {+-} 7.2) suffering from osteoporosis (46), malignancy (12), and angiomas (2), divided into two groups (A and B), underwent PV on 190 vertebrae (86 dorsal, 104 lumbar). In Group A, PV with high-viscosity PMMA (Confidence, Disc-O-Tech, Israel) was used. This PMMA was injected by a proprietary delivery system, a hydraulic saline-filled screw injector. In Group B, a standard low-viscosity PMMA was used. Postprocedural CT was carried out to detect PMMA leakages and complications. Fisher's exact test and Wilcoxon rank test were used to assess significant differences (p PV was feasible, achieving good clinical outcome (p < 0.0001) without major complications. In Group A, postprocedural CT showed an asymptomatic leak in the venous structures of 8 of 98 (8.2%) treated vertebrae; a discoidal leak occurred in 6 of 98 (6.1%). In Group B, a venous leak was seen in 38 of 92 (41.3%) and a discoidal leak in 12 of 92 (13.0%). Reduction of venous leak obtained by high-viscosity PMMA was highly significant (p < 0.0001), whereas this result was not significant (p = 0.14) related to the disc. The high-viscosity PMMA system is safe and effective for clinical use, allowing a significant reduction of extravasation rate and, thus, leakage-related complications.

Anselmetti, Giovanni Carlo, E-mail: giovanni.anselmetti@ircc.i [Institute for Cancer Research and Treatment (IRCC), Interventional Radiology Unit (Italy); Zoarski, Gregg [University of Maryland, Radiology and Radiological Science (United States); Manca, Antonio [Institute for Cancer Research and Treatment (IRCC), Radiology Unit (Italy); Masala, Salvatore [University 'Tor Vergata', Radiology Unit and Interventional Radiology Unit (Italy); Eminefendic, Haris; Russo, Filippo; Regge, Daniele [Institute for Cancer Research and Treatment (IRCC), Radiology Unit (Italy)

2008-09-15T23:59:59.000Z

403

Modular Pluggable Analyses for Data Structure Consistency  

Science Conference Proceedings (OSTI)

Hob is a program analysis system that enables the focused application of multiple analyses to different modules in the same program. In our approach, each module encapsulates one or more data structures and uses membership in abstract sets to characterize ... Keywords: Typestate, data structure, invariant, program analysis, program verification, shape analysis, formal methods, programming language design.

Viktor Kuncak; Patrick Lam; Karen Zee; Martin C. Rinard

2006-12-01T23:59:59.000Z

404

Chemical Analyses of Silicon Aerogel Samples  

E-Print Network (OSTI)

After five years of operating, two Aerogel counters: A1 and A2, taking data in Hall A at Jefferson Lab, suffered a loss of performance. In this note possible causes of degradation have been studied. In particular, various chemical and physical analyses have been carried out on several Aerogel tiles and on adhesive tape in order to reveal the presence of contaminants.

I. van der Werf; F. Palmisano; R. De Leo; S. Marrone

2008-04-22T23:59:59.000Z

405

Analysing sequences of TV-frames  

Science Conference Proceedings (OSTI)

A system is being implemented to analyse sequences of TV-frames from real world scenes like a street intersection with cars. A monocular black/white TV-camera will record - without changing its position or viewing direction - a scene in realtime on an ...

H.-H. Nagel

1977-08-01T23:59:59.000Z

406

Uncertainty quantification approaches for advanced reactor analyses.  

SciTech Connect

The original approach to nuclear reactor design or safety analyses was to make very conservative modeling assumptions so as to ensure meeting the required safety margins. Traditional regulation, as established by the U. S. Nuclear Regulatory Commission required conservatisms which have subsequently been shown to be excessive. The commission has therefore moved away from excessively conservative evaluations and has determined best-estimate calculations to be an acceptable alternative to conservative models, provided the best-estimate results are accompanied by an uncertainty evaluation which can demonstrate that, when a set of analysis cases which statistically account for uncertainties of all types are generated, there is a 95% probability that at least 95% of the cases meet the safety margins. To date, nearly all published work addressing uncertainty evaluations of nuclear power plant calculations has focused on light water reactors and on large-break loss-of-coolant accident (LBLOCA) analyses. However, there is nothing in the uncertainty evaluation methodologies that is limited to a specific type of reactor or to specific types of plant scenarios. These same methodologies can be equally well applied to analyses for high-temperature gas-cooled reactors and to liquid metal reactors, and they can be applied to steady-state calculations, operational transients, or severe accident scenarios. This report reviews and compares both statistical and deterministic uncertainty evaluation approaches. Recommendations are given for selection of an uncertainty methodology and for considerations to be factored into the process of evaluating uncertainties for advanced reactor best-estimate analyses.

Briggs, L. L.; Nuclear Engineering Division

2009-03-24T23:59:59.000Z

407

Chemical Analyses of Silicon Aerogel Samples  

E-Print Network (OSTI)

After five years of operating, two Aerogel counters: A1 and A2, taking data in Hall A at Jefferson Lab, suffered a loss of performance. In this note possible causes of degradation have been studied. In particular, various chemical and physical analyses have been carried out on several Aerogel tiles and on adhesive tape in order to reveal the presence of contaminants.

van der Werf, I; De Leo, R; Marrone, S

2008-01-01T23:59:59.000Z

408

Geophysical monitoring and reactive transport modeling of ureolytically-driven calcium carbonate precipitation  

SciTech Connect

Ureolytically-driven calcium carbonate precipitation is the basis for a promising in-situ remediation method for sequestration of divalent radionuclide and trace metal ions. It has also been proposed for use in geotechnical engineering for soil strengthening applications. Monitoring the occurrence, spatial distribution, and temporal evolution of calcium carbonate precipitation in the subsurface is critical for evaluating the performance of this technology and for developing the predictive models needed for engineering application. In this study, we conducted laboratory column experiments using natural sediment and groundwater to evaluate the utility of geophysical (complex resistivity and seismic) sensing methods, dynamic synchrotron x-ray computed tomography (micro-CT), and reactive transport modeling for tracking ureolytically-driven calcium carbonate precipitation processes under site relevant conditions. Reactive transport modeling with TOUGHREACT successfully simulated the changes of the major chemical components during urea hydrolysis. Even at the relatively low level of urea hydrolysis observed in the experiments, the simulations predicted an enhanced calcium carbonate precipitation rate that was 3-4 times greater than the baseline level. Reactive transport modeling results, geophysical monitoring data and micro-CT imaging correlated well with reaction processes validated by geochemical data. In particular, increases in ionic strength of the pore fluid during urea hydrolysis predicted by geochemical modeling were successfully captured by electrical conductivity measurements and confirmed by geochemical data. The low level of urea hydrolysis and calcium carbonate precipitation suggested by the model and geochemical data was corroborated by minor changes in seismic P-wave velocity measurements and micro-CT imaging; the latter provided direct evidence of sparsely distributed calcium carbonate precipitation. Ion exchange processes promoted through NH{sub 4}{sup +} production during urea hydrolysis were incorporated in the model and captured critical changes in the major metal species. The electrical phase increases were potentially due to ion exchange processes that modified charge structure at mineral/water interfaces. Our study revealed the potential of geophysical monitoring for geochemical changes during urea hydrolysis and the advantages of combining multiple approaches to understand complex biogeochemical processes in the subsurface.

Wu, Y.; Ajo-Franklin, J.B.; Spycher, N.; Hubbard, S.S.; Zhang, G.; Williams, K.H.; Taylor, J.; Fujita, Y.; Smith, R.

2011-07-15T23:59:59.000Z

409

Geological, Geophysical, And Thermal Characteristics Of The Salton Sea Geothermal Field, California  

DOE Green Energy (OSTI)

The Salton Sea Geothermal Field is the largest water-dominated geothermal field in the Salton Trough in Southern California. Within the trough, local zones of extension among active right-stepping right-lateral strike-slip faults allow mantle-derived magmas to intrude the sedimentary sequence. The intrusions serves as heat sources to drive hydrothermal systems. We can characterize the field in detail because we have an extensive geological and geophysical data base. The sediments are relatively undeformed and can be divided into three categories as a function of depth: (1) low-permeability cap rock, (2) upper reservoir rocks consisting of sandstones, siltstones, and shales that were subject to minor alterations, and (3) lower reservoir rocks that were extensively altered. Because of the alteration, intergranular porosity and permeability are reduced with depth. permeability is enhanced by renewable fractures, i.e., fractures that can be reactivated by faulting or natural hydraulic fracturing subsequent to being sealed by mineral deposition. In the central portion of the field, temperature gradients are high near the surface and lower below 700 m. Surface gradients in this elliptically shaped region are fairly constant and define a thermal cap, which does not necessarily correspond to the lithologic cap. At the margin of the field, a narrow transition region, with a low near-surface gradient and an increasing gradient at greater depths, separates the high temperature resource from areas of normal regional gradient. Geophysical and geochemical evidence suggest that vertical convective motion in the reservoir beneath the thermal cap is confined to small units, and small-scale convection is superimposed on large-scale lateral flow of pore fluid. Interpretation of magnetic, resistivity, and gravity anomalies help to establish the relationship between the inferred heat source, the hydrothermal system, and the observed alteration patterns. A simple hydrothermal model is supported by interpreting the combined geological, geophysical, and thermal data. In the model, heat is transferred from an area of intrusion by lateral spreading of hot water in a reservoir beneath an impermeable cap rock.

Younker, L.W.; Kasameyer, P. W.; Tewhey, J. D.

1981-01-01T23:59:59.000Z

410

Geophysical Monitoring and Reactive Transport Modeling of Ureolytically-Driven Calcium Carbonate Precipitation  

Science Conference Proceedings (OSTI)

Ureolytically-driven calcium carbonate precipitation is the basis for a promising in-situ remediation method for sequestration of divalent radionuclide and trace metal ions. It has also been proposed for use in geotechnical engineering for soil strengthening applications. Monitoring the occurrence, spatial distribution, and temporal evolution of calcium carbonate precipitation in the subsurface is critical for evaluating the performance of this technology and for developing the predictive models needed for engineering application. In this study, we conducted laboratory column experiments using natural sediment and groundwater to evaluate the utility of geophysical (complex resistivity and seismic) sensing methods, dynamic synchrotron x-ray computed tomography (micro-CT), and reactive transport modeling for tracking ureolytically-driven calcium carbonate precipitation processes under site relevant conditions. Reactive transport modeling with TOUGHREACT successfully simulated the changes of the major chemical components during urea hydrolysis. Even at the relatively low level of urea hydrolysis observed in the experiments, the simulations predicted an enhanced calcium carbonate precipitation rate that was 3-4 times greater than the baseline level. Reactive transport modeling results, geophysical monitoring data and micro-CT imaging correlated well with reaction processes validated by geochemical data. In particular, increases in ionic strength of the pore fluid during urea hydrolysis predicted by geochemical modeling were successfully captured by electrical conductivity measurements and confirmed by geochemical data. The low level of urea hydrolysis and calcium carbonate precipitation suggested by the model and geochemical data was corroborated by minor changes in seismic P-wave velocity measurements and micro-CT imaging; the latter provided direct evidence of sparsely distributed calcium carbonate precipitation. Ion exchange processes promoted through NH4+ production during urea hydrolysis were incorporated in the model and captured critical changes in the major metal species. The electrical phase increases were potentially due to ion exchange processes that modified charge structure at mineral/water interfaces. Our study revealed the potential of geophysical monitoring for geochemical changes during urea hydrolysis and the advantages of combining multiple approaches to understand complex biogeochemical processes in the subsurface.

Yuxin Wu; Jonathan B. Ajo-Franklin; Nicolas Spycher; Susan S. Hubbard; Guoxiang Zhang; Kenneth H. Williams; Joanna Taylor; Yoshiko Fujita; Robert Smith

2011-09-01T23:59:59.000Z

411

Effect of MgO Additive on Volumetric Expansion of Self-Degradable Cements  

DOE Green Energy (OSTI)

We identified hard-burned magnesium oxide (MgO) as a suitable expansive additive for improving the plugging performance of self-degradable, temporary sodium silicate-activated slag/Class C fly ash (SSASC) blend cement sealers into rock fractures in Enhanced Geothermal Systems (EGSs). MgO extended the volumetric expansion of sealers during their exposure to a hydrothermal environment at 200 C under pressures, ranging from 300 to 1500 psi. A great expansion ratc of 19.3% was observed by adding 3.0 wt% MgO under 300 psi pressure, thus promising to plug thoroughly inner fracture. When the pressure was increased from 300 psi to 1500 psi, the expansion rate of cement markedly reduced, corresponding to the formaLion of crack-free specimens and the improvement of compressive strength. However, with 3.0 wt% MgO, the specimens still engendered the generation of numerous visual cracks, although they were prepared under a high pressure of 1500 psi. The effective content of MgO in minimizing and eliminating the generation of cracks was 2.0 wt%, which provided a moderate expansion of {ge} 0.5%. The compressive strength of 2.0 wt% MgO specimens made under a pressure of 300 psi rose {approx} 1.7-fold to 4816 psi with an increasing pressure to 1500 psi. The in-situ growth of brucite crystal formed by the hydrothermal hydration of MgO was responsive for such an expansion of the SSASC cement; meanwhile. two crystalline hydrothermal reaction products, 1.1 nm tobermorite and calcium silicate hydrated, contributed to the development of the sealer's compressive strength. Thus, the increasing pressure seems to suppress and control a growth rate of brucite crystal in response to a lower extension of expansion. Furthermore, all MgO-conlaining SSASC sealers possessed the water-catalyzed self-degradable properties.

Sugama T.; Warren, J.; Butcher, T.

2011-09-30T23:59:59.000Z

412

Radiolytic gas generation from cement-based waste hosts for DOE low-level radioactive wastes  

DOE Green Energy (OSTI)

Using cement-based immobilization binders with simulated radioactive waste containing sulfate, nitrate, nitrite, phosphate, and fluoride anions, the gamma- and alpha-radiolytic gas generation factors (G/sub t/, molecules/100 eV) and gas compositions were measured on specimens of cured grouts. These tests studied the effects of; (1) waste composition; (2) the sample surface-to-volume ratio; (3) the waste slurry particle size; and (4) the water content of the waste host formula. The radiolysis test vessels were designed to minimize the ''dead'' volume and to simulate the configuration of waste packages.

Dole, L.R.; Friedman, H.A.

1986-01-01T23:59:59.000Z

413

Techno-economic study of CO{sub 2} capture from an existing cement plant using MEA scrubbing  

SciTech Connect

Carbon dioxide is the major greenhouse gas responsible for global warming. Man-made CO{sub 2} emissions contribute approximately 63% of greenhouse gases and the cement industry is responsible for approximately 5% of CO{sub 2} emissions emitting nearly 900 kg of CO{sub 2} per 1000 kg of cement. CO{sub 2} from a cement plant was captured and purified to 98% using the monoethanolamine (MEA) based absorption process. The capture cost was $51 per tonne of CO{sub 2} captured, representing approximately 90% of total cost. Steam was the main operating cost representing 39% of the total capture cost. Switching from coal to natural gas reduces CO{sub 2} emissions by about 18%. At normal load, about 36 MW of waste heat is available for recovery to satisfy the parasitic heat requirements of MEA process; however, it is very difficult to recover.

Hassan, S.M.N.; Douglas, P.L.; Croiset, E. [University of Waterloo, Waterloo, ON (Canada). Dept. of Chemical Engineering

2007-03-15T23:59:59.000Z

414

Techno-economic study of CO{sub 2} capture from an existing cement plant using MEA scrubbing  

SciTech Connect

Carbon dioxide is the major greenhouse gas responsible for global warming. Man-made CO{sub 2} emissions contribute approximately 63% of greenhouse gases and the cement industry is responsible for approximately 5% of CO{sub 2} emissions emitting nearly 900 kg of CO{sub 2} per 1000 kg of cement. CO{sub 2} from a cement plant was captured and purified to 98% using the monoethanolamine (MEA) based absorption process. The capture cost was $51 per tonne of CO{sub 2} captured, representing approximately 90% of total cost. Steam was the main operating cost representing 39% of the total capture cost. Switching from coal to natural gas reduces CO{sub 2} emissions by about 18%. At normal load, about 36 MW of waste heat is available for recovery to satisfy the parasitic heat requirements of MEA process; however, it is very difficult to recover. 18 refs.

S.M. Nazmul Hassan; Peter L. Douglas; Eric Croiset [University of Waterloo, Waterloo, ON (Canada). Department of Chemical Engineering

2007-03-15T23:59:59.000Z

415

Geological, geochemical, and geophysical survey of the geothermal resources at Hot Springs Bay Valley, Akutan Island, Alaska  

DOE Green Energy (OSTI)

An extensive survey was conducted of the geothermal resource potential of Hot Springs Bay Valley on Akutan Island. A topographic base map was constructed, geologic mapping, geophysical and geochemical surveys were conducted, and the thermal waters and fumarolic gases were analyzed for major and minor element species and stable isotope composition. (ACR)

Motyka, R.J.; Wescott, E.M.; Turner, D.L.; Swanson, S.E.; Romick, J.D.; Moorman, M.A.; Poreda, R.J.; Witte, W.; Petzinger, B.; Allely, R.D.

1985-01-01T23:59:59.000Z

416

Wind Bias from Sub-optimal Estimation Due to Geophysical Modeling Error Paul E. Johnson and David G . Long  

E-Print Network (OSTI)

Wind Bias from Sub-optimal Estimation Due to Geophysical Modeling Error -Wind I Paul E. Johnson (which relates the wind to the normalized radar cross section, NRCS, of the ocean surface) is uncertainty in the NRCS for given wind conditions. When the estimated variability is in- cluded in the maximum likelihood

Long, David G.

417

Remote Sensing May Provide Unprecedented Hydrological Data http://www.agu.org/eos_elec, 1999 American Geophysical Union.  

E-Print Network (OSTI)

Remote Sensing May Provide Unprecedented Hydrological Data http://www.agu.org/eos_elec, © 1999 American Geophysical Union. Remote Sensing May Provide Unprecedented Hydrological Data -- Randal D. Koster, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Md., USA Use of remote sensing

Houser, Paul R.

418

Geophysical methods applied to detection delineation and evaluation of geothermal resources, Snowbird, Utah, August 24--28, 1975  

DOE Green Energy (OSTI)

A report is given on the geothermal workshop devoted to inventorying current knowledge, problems, controversies, and predicting future developments in the application of geophysical methods to the evaluation of geothermal resources. Separate abstracts were prepared for presentations and summaries of the group sessions. (LBS)

Not Available

1975-01-01T23:59:59.000Z

419

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Ozone Ensemble Forecast with Machine Learning Algorithms  

E-Print Network (OSTI)

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Ozone Ensemble Forecast with Machine learning algorithms to perform sequential aggregation of ozone forecasts. The latter rely on a multimodel ensemble built for ozone forecasting with the modeling system Polyphemus. The ensemble simulations

Paris-Sud XI, Université de

420

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 22452248, AUGUST 1, 2000 Subsurface nuclear tests monitoring through the  

E-Print Network (OSTI)

nuclear tests down to 1 kiloton (kt) TNT equivalent anywhere on the planet. The IMS is based upon four waves will help check for underground, under­water and atmospheric nuclear tests. The fourth networkGEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 15, PAGES 2245­2248, AUGUST 1, 2000 Sub­surface nuclear

Hourdin, Chez Frédéric

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS, VOL. ???, XXXX, DOI:10.1029/, Effect of a metallic core on transient geomagnetic induction  

E-Print Network (OSTI)

on transient geomagnetic induction J. Vel´imsk´y,1 , C. C. Finlay2 1 Department of Geophysics, Faculty, 2:01pm D R A F T #12;X - 2 VEL´IMSK ´Y AND FINLAY: EFFECT OF CORE ON GEOMAGNETIC INDUCTION Abstract be correctly taken into account when mod- elling the geomagnetic field using modern observatory and satellite

Velímsky, Jakub

422

Phyllosilicate orientation demonstrates early timing of compactional stabilization in calcite-cemented concretions in the Barnett Shale (Late Mississippian), Fort Worth  

E-Print Network (OSTI)

-cemented concretions in the Barnett Shale (Late Mississippian), Fort Worth Basin, Texas (U.S.A) Ruarri J. Day-Stirrat a in revised form 8 April 2008 Accepted 16 April 2008 Keywords: Barnett Shale Goniometry Concretions Fabric Calcite-cemented zones in the prolific gas-producing Barnett Shale (Ft. Worth Basin, Texas) preserve very

423

Geophysical Study of Basin-Range Structure Dixie Valley Region, Nevada |  

Open Energy Info (EERE)

of Basin-Range Structure Dixie Valley Region, Nevada of Basin-Range Structure Dixie Valley Region, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geophysical Study of Basin-Range Structure Dixie Valley Region, Nevada Abstract The study aims to determine the subsurface structure and origin ofa tectonically active part of the Basin and Range province, which hasstructural similarities to the ocean ridge system and to continental blockfaultstructure such_;s the Rift Valleys of East Africa. A variety oftechniques was utilized, including seismic refraction, gravity measurements,magnetic measurements, photogeologic mapping, strain analysis of existinggeodetic data, and elevation measurements on shorelines of ancient lakes.Dixie Valley contains more than 10,000 feet of Cenozoic deposits andis underlain by a complex fault trough concealed within the

424

An Integrated Geophysical Study Of The Geothermal Field Of Tule Chek, Bc,  

Open Energy Info (EERE)

Tule Chek, Bc, Tule Chek, Bc, Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Integrated Geophysical Study Of The Geothermal Field Of Tule Chek, Bc, Mexico Details Activities (0) Areas (0) Regions (0) Abstract: A method is described to determine bounds characterizing axisymmetric bodies from a set of gravity data. Bounds on the density contrast as a function of depth to the top and thickness of the anomalous source are obtained by using Parker's ideal body theory and linear programming algorithms. Such bounds are given in terms of trade-off diagrams, where regions of feasible solutions compatible with the observed data can be assured. Gravity data from the Tule Chek, B.C., Mexico, geothermal area were used to compute such trade-off diagrams. Seismic

425

An Integrated Geophysical Study Of The Northern Kenya Rift | Open Energy  

Open Energy Info (EERE)

Kenya Rift Kenya Rift Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Integrated Geophysical Study Of The Northern Kenya Rift Details Activities (0) Areas (0) Regions (0) Abstract: The Kenyan part of the East African rift is among the most studied rift zones in the world. It is characterized by: (1) a classic rift valley, (2) sheer escarpments along the faulted borders of the rift valley, (3) voluminous volcanics that flowed from faults and fissures along the rift, and (4) axial and flank volcanoes where magma flow was most intense. In northern Kenya, the rift faults formed in an area where the lithosphere was weakened and stretched by Cretaceous-Paleogene extension, and in central and southern Kenya, it formed along old zones of weakness at the

426

An Integrated Geophysical Analysis Of The Upper Crust Of The Southern Kenya  

Open Energy Info (EERE)

Upper Crust Of The Southern Kenya Upper Crust Of The Southern Kenya Rift Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: An Integrated Geophysical Analysis Of The Upper Crust Of The Southern Kenya Rift Details Activities (0) Areas (0) Regions (0) Abstract: Previous interpretations of seismic data collected by the Kenya Rift International Seismic Project (KRISP) experiments indicate the presence of crustal thickening within the rift valley area beneath the Kenya dome, an uplift centred on the southern part of the Kenya rift. North of the dome, these interpretations show thinning of the crust and an increase in crustal extension. To the south near the Kenya/Tanzania border, crustal thinning associated with the rift is modest. Our study was aimed at further investigating crustal structure from this dome southwards via a

427

Geophysical Setting of the Blue Mountain Geothermal Area, North-Central  

Open Energy Info (EERE)

Setting of the Blue Mountain Geothermal Area, North-Central Setting of the Blue Mountain Geothermal Area, North-Central Nevada and Its Relationship to a Crustal-Scale Fracture Associated with the Inception of the Yellowstone Hotspot Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Geophysical Setting of the Blue Mountain Geothermal Area, North-Central Nevada and Its Relationship to a Crustal-Scale Fracture Associated with the Inception of the Yellowstone Hotspot Abstract The Blue Mountain geothermal field, located about 35 km northwest of Winnemucca, Nevada, is situated along a prominent crustal-scale fracture interpreted from total intensity aeromagnetic and gravity data. Aeromagnetic data indicate that this feature is related to the intrusion of mafic dikes, similar to the Northern Nevada Rift (Zoback et al.,1994), and

428

GEOPHYSICAL INVESTIGATIONS OF THE ARCHAEOLOGICAL RESOURCES AT THE POWELL STAGE STATION  

SciTech Connect

Within the boundaries of the Idaho National Laboratory, an ongoing archaeological investigation of a late 19th century stage station was expanded with the use of Electro-Magnetic and Magnetic geophysical surveying. The station known as the Powell Stage Station was a primary transportation hub on the Snake River Plain, bridging the gap between railroad supply depots in Blackfoot, Idaho and booming mining camps throughout Central Idaho. Initial investigations have shown a strong magnetic signature from a buried road and previously unknown features that were not detected by visual surface surveys. Data gained from this project aids in federally directed cultural resource and land management and use requirements and has contributed additional information for archeological interpretation and cultural resource preservation.

Hollie K. Gilbert; Julie B. Braun; Brenda R. Pace; Gail Heath; Clark Scott

2009-04-01T23:59:59.000Z

429

Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making. An ENERGY STAR Guide for Energy and Plant Managers  

Science Conference Proceedings (OSTI)

The cost of energy as part of the total production costs in the cement industry is significant, warranting attention for energy efficiency to improve the bottom line. Historically, energy intensity has declined, although more recently energy intensity seems to have stabilized with the gains. Coal and coke are currently the primary fuels for the sector, supplanting the dominance of natural gas in the 1970s. Most recently, there is a slight increase in the use of waste fuels, including tires. Between 1970 and 1999, primary physical energy intensity for cement production dropped 1 percent/year from 7.3 MBtu/short ton to 5.3 MBtu/short ton. Carbon dioxide intensity due to fuel consumption and raw material calcination dropped 16 percent, from 609 lb. C/ton of cement (0.31 tC/tonne) to 510 lb. C/ton cement (0.26 tC/tonne). Despite the historic progress, there is ample room for energy efficiency improvement. The relatively high share of wet-process plants (25 percent of clinker production in 1999 in the U.S.) suggests the existence of a considerable potential, when compared to other industrialized countries. We examined over 40 energy efficient technologies and measures and estimated energy savings, carbon dioxide savings, investment costs, and operation and maintenance costs for each of the measures. The report describes the measures and experiences of cement plants around the wold with these practices and technologies. Substantial potential for energy efficiency improvement exists in the cement industry and in individual plants. A portion of this potential will be achieved as part of (natural) modernization and expansion of existing facilities, as well as construction of new plants in particular regions. Still, a relatively large potential for improved energy management practices exists.

Galitsky, Christina; Worrell, Ernst; Galitsky, Christina

2008-01-01T23:59:59.000Z

430

Renewable Energy Development: Databases, Tools, and Analyses  

NLE Websites -- All DOE Office Websites (Extended Search)

Renewable Energy Development: Databases, Tools, and Analyses Renewable Energy Development: Databases, Tools, and Analyses For over 20 years, EVS has used geospatial databases and technologies for environmental analysis of energy technologies and programs, with a focus on renewable energy. EVS has developed extensive geospatial libraries of energy and environmental data to support our work, partnered with a multi-disciplinary team of scientists and engineers to analyze impacts of potential projects and programs, created models to simulate energy and environmental processes, and produced web-based and desktop tools to help stakeholders understand issues and participate in decision making. The geographic context of energy and environmental issues is so fundamental to decision making that many of our projects routinely involve geospatial

431

Analyses and characterization of double shell tank  

Science Conference Proceedings (OSTI)

Evaporator candidate feed from tank 241-AP-108 (108-AP) was sampled under prescribed protocol. Physical, inorganic, and radiochemical analyses were performed on tank 108-AP. Characterization of evaporator feed tank waste is needed primarily for an evaluation of its suitability to be safely processed through the evaporator. Such analyses should provide sufficient information regarding the waste composition to confidently determine whether constituent concentrations are within not only safe operating limits, but should also be relevant to functional limits for operation of the evaporator. Characterization of tank constituent concentrations should provide data which enable a prediction of where the types and amounts of environmentally hazardous waste are likely to occur in the evaporator product streams.

Not Available

1994-10-04T23:59:59.000Z

432

Sensitivity in risk analyses with uncertain numbers.  

SciTech Connect

Sensitivity analysis is a study of how changes in the inputs to a model influence the results of the model. Many techniques have recently been proposed for use when the model is probabilistic. This report considers the related problem of sensitivity analysis when the model includes uncertain numbers that can involve both aleatory and epistemic uncertainty and the method of calculation is Dempster-Shafer evidence theory or probability bounds analysis. Some traditional methods for sensitivity analysis generalize directly for use with uncertain numbers, but, in some respects, sensitivity analysis for these analyses differs from traditional deterministic or probabilistic sensitivity analyses. A case study of a dike reliability assessment illustrates several methods of sensitivity analysis, including traditional probabilistic assessment, local derivatives, and a ''pinching'' strategy that hypothetically reduces the epistemic uncertainty or aleatory uncertainty, or both, in an input variable to estimate the reduction of uncertainty in the outputs. The prospects for applying the methods to black box models are also considered.

Tucker, W. Troy; Ferson, Scott

2006-06-01T23:59:59.000Z

433

Overview of SNS accelerator shielding analyses  

Science Conference Proceedings (OSTI)

The Spallation Neutron Source is an accelerator driven neutron scattering facility for materials research. During all phases of SNS development, including design, construction, commissioning and operation, extensive neutronics work was performed in order to provide adequate shielding, to assure safe facility operation from radiation protection point of view, and to optimize performance of the accelerator and target facility. Presently, most of the shielding work is concentrated on the beam lines and instrument enclosures to prepare for commissioning, safe operation and adequate radiation background in the future. Although the accelerator is built and in operation mode, there is extensive demand for shielding and activation analyses. It includes redesigning some parts of the facility, facility upgrades, designing additional structures, storage and transport containers for accelerator structures taken out of service, and performing radiation protection analyses and studies on residual dose rates inside the accelerator. (authors)

Popova, I.; Gallmeier, F. X.; Ferguson, P.; Iverson, E.; Lu, W. [ORNL/SNS, MS6475, PO Box 2008, Oak Ridge, TN 37831-6471 (United States)

2012-07-01T23:59:59.000Z

434

SUPPLEMENTARY METHODS Deep-time phylogeographic analyses  

E-Print Network (OSTI)

and S are sisters, and Clade B is early-branching (Fig. 3 in the main text; also supported by DIY-ABC analyses dispersal event was assumed to be associated with a bottleneck. DIY-ABC v1.0.4.46b (Cornuet et al. 2010 statistics given in the main text Methods was also used here. DIY-ABC runs consisted of 3.0x106 simulations

Garrick, Ryan

435

Department of Energy's team's analyses of Soviet designed VVERs  

Science Conference Proceedings (OSTI)

This document provides Appendices A thru K of this report. The topics discussed respectively are: radiation induced embrittlement and annealing of reactor pressure vessel steels; loss of coolant accident blowdown analyses; LOCA blowdown response analyses; non-seismic structural response analyses; seismic analyses; S'' seal integrity; reactor transient analyses; fire protection; aircraft impacts; and boric acid induced corrosion. (FI).

Not Available

1989-09-01T23:59:59.000Z

436

Assessment of radioactivity and the associated hazards in local and imported cement types used in Sudan  

E-Print Network (OSTI)

Activity concentration of sup 2 sup 3 sup 2 Th, sup 2 sup 2 sup 6 Ra and sup 4 sup 0 K in local (Atbra and Rabak) and imported cement types (Jordanian, Indonesian and seabulk) has been measured using a high resolution gamma spectrometry. The average values obtained for sup 2 sup 3 sup 2 Th, sup 2 sup 2 sup 6 Ra and sup 4 sup 0 K activity concentrations in different cements are lower than the corresponding global values reported in UNSCEAR publications. The radium equivalent (Ra sub e sub q) of the samples was calculated and compared with similar data reported in the literature. The comparison has revealed that Ra sub e sub q values obtained fall far below the criterion limit specified for building materials. The potential radiological hazard of the different samples was estimated using different approaches: representative level index, committed effective dose equivalent via inhalation and annual dose limit. The estimated representative level index for all the samples is less than unity (the upper limit) confi...

Ahmed, N A

2001-01-01T23:59:59.000Z

437

CHEMICALLY BONDED CEMENTS FROM BOILER ASH AND SLUDGE WASTES. PHASE I REPORT AUGUST 1997 - JULY 1998  

Science Conference Proceedings (OSTI)

In exploring methods to recycle boiler ash (BA) and waste water treatment sludge (WWTS), by-products generated from Keyspan's power plants, into commercially viable materials, we synthesized chemically bonded cements (CBC) offering the following three specific characteristics; (1) immobilization of hazardous heavy metals, such as Pb, Ni, and V, (2) rapid hardening and setting properties, and (3) development of high mechanical strength. The CBCs were prepared through an acid-base reaction between these by-products acting as the solid base reactants and the sodium polyphosphate solution as the cement-forming acid reactant, followed by a hydrating reaction. Furthermore, two additives, the calcium aluminate cements (CAC) and the calcium silicate cements (CSC) were incorporated into the CBC systems to improve their properties. Using a CBC formulation consisting of 53.8 wt% WWTS, 23.1 wt% CSC, and 23.1 wt% [40 wt% -(-NaPO{sub 3}-)-{sub n}]{sub 2} the Toxicity Characteristics Leaching Procedure (TCLP) tests showed that the concentrations of Pb, Ni, and V metals leached out from the specimens were minimal. This formulation originally contained {approx} 28800 mg/kg of Pb, {approx} 6300 mg/kg of Ni, and {approx} 11130 mg/kg of V; the amounts leaching into the acid extraction fluid were only 0.15 mg/L of Pb, 0.15 mg/L of Ni, and 4.63 mgiL of V. On the other hand, CBC specimens derived from a formulation consisting of 42 wt% BA, 18 wt% CAC and 40 wt% [40 wt% -(-NaPO{sub 3}-)-{sub n}] displayed an excellent compressive strength of 10.8 MPa at an early curing age of 2 hours after mixing at room temperature. The reason for its rapid hardening was due to a high exothermic energy evolved by the acid-base reaction. Furthermore, when these specimens were immersed for 28 days in water at 25 C, and exposed for 20 hours to steam at 80 C, a very high compressive strength of 3.32 MPa developed. Two physico-chemical factors played an important role in improving the mechanical strength of the specimens: One was the formation of two well-crystallized phases, hydroxyapatite [Ca{sub 5}(PO{sub 4}){sub 3}(OH)] and sodium vanadium sulfate hydrate [Na{sub 2}V(SO{sub 4}){sub 2},4H{sub 2}O], as the reaction products in the cement bodies; the other factor reflected the dense microstructure developed by the growth of these crystalline reaction products. Accordingly, the CBCs derived from these by-products have a high potential for use as remediating material for hazardous heavy metal-contaminated soils, as rapid-setting repair patching and filling materials for damaged roadways and bridge decks, and also as binders in precast concrete products, such as blocks, slabs, and pipes.

SUGAMA,T.; YAGER,K.A.

2002-08-05T23:59:59.000Z

438

Climate Diagnostics from Global Analyses: Conservation of Mass in ECMWF Analyses  

Science Conference Proceedings (OSTI)

The extent to which mass is conserved in European Centre for Medium Range Weather Forecasts (ECMWF) analyses archived on pressure surfaces is examined from two perspectives and with two different datasets. The data used come from the WMO archive ...

Kevin E. Trenberth

1991-07-01T23:59:59.000Z

439

Prof. Dr. Sophie Sarre Vakgroep Farmaceutische Chemie, Analyse van  

E-Print Network (OSTI)

Promotor Prof. Dr. Sophie Sarre Vakgroep Farmaceutische Chemie, Analyse van Geneesmiddelen en Michotte Vakgroep Farmaceutische Chemie, Analyse van Geneesmiddelen en Geneesmiddelenkennis Onderzoeksgroep

Glineur, François

440

DOE - Fossil Energy: Reports and Analyses on Natural Gas Imports...  

NLE Websites -- All DOE Office Websites (Extended Search)

Subscribe to our RSS Feeds You are here: Natural Gas Regulation > Analyses Natural Gas Import & Export Regulation - Analyses & Reports UPDATE: 2012 4th Quarter Report on...

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Cementing plug  

SciTech Connect

A plug for use in wellbore operations is described comprising: shaft means having a first end and a second end, first hollow cup-shaped conical wiper means mounted on the shaft means with its apex pointed in the direction of the first end of the shaft means; second hollow cup-shaped conical wiper means disposed on the shaft means, the second conical wiper means inverted with respect to the first conical wiper means and the second hollow conical wiper means with its apex pointed away from the apex of the first hollow conical wiper means, and the outer edges of the first and second conical wiper means are in contact.

Schneider, D.E.

1987-11-17T23:59:59.000Z

442

Cementing plug  

SciTech Connect

A wellbore plug is described for use in a cased wellbore wherein breakaway plugs protrude into the casing, the wellbore plug comprising: shaft means, first flexible wiper means mounted on the shaft means, breaking means for breaking the breakaway plugs, the breaking means mounted on the shaft means and spaced apart from the first flexible wiper means, the breaking means having insert means for providing rigidity to enhance the breaking means ability to break the breakaway plugs, second flexible wiper means mounted on the shaft means and spaced apart from the breaking means, the breaking means mounted at an intermediate position between the first flexible wiper means and the second flexible wiper means, the first flexible wiper means flexible enough to bypass one or more of the breakaway plugs without breaking them, and the breaking means rigid enough for breaking one or more of the breakaway plugs bypassed by the first flexible wiper means.

Schneider, D.E.

1988-07-12T23:59:59.000Z

443

CEMEX: Cement Manufacturer Saves 2.1 Million kWh Annually with a Motor Retrofit Project  

Science Conference Proceedings (OSTI)

This DOE Industrial Technologies Program spotlight describes how the CEMEX cement manufacturing plant in Davenport, California, saves 2 million kWh and $168,000 in energy costs annually by replacing 13 worn-out motors with new energy-efficient ones.

Not Available

2005-11-01T23:59:59.000Z

444

BLENDED CALCIUM ALUMINATE-CALCIUM SULFATE CEMENT-BASED GROUT FOR P-REACTOR VESSEL IN-SITU DECOMMISSIONING  

SciTech Connect

The objective of this report is to document laboratory testing of blended calcium aluminate - calcium hemihydrate grouts for P-Reactor vessel in-situ decommissioning. Blended calcium aluminate - calcium hemihydrate cement-based grout was identified as candidate material for filling (physically stabilizing) the 105-P Reactor vessel (RV) because it is less alkaline than portland cement-based grout which has a pH greater than 12.4. In addition, blended calcium aluminate - calcium hemihydrate cement compositions can be formulated such that the primary cementitious phase is a stable crystalline material. A less alkaline material (pH {<=} 10.5) was desired to address a potential materials compatibility issue caused by corrosion of aluminum metal in highly alkaline environments such as that encountered in portland cement grouts [Wiersma, 2009a and b, Wiersma, 2010, and Serrato and Langton, 2010]. Information concerning access points into the P-Reactor vessel and amount of aluminum metal in the vessel is provided elsewhere [Griffin, 2010, Stefanko, 2009 and Wiersma, 2009 and 2010, Bobbitt, 2010, respectively]. Radiolysis calculations are also provided in a separate document [Reyes-Jimenez, 2010].

Langton, C.; Stefanko, D.

2011-03-10T23:59:59.000Z

445

SURFACE GEOPHYSICAL EXPLORATION DEVELOPING NONINVASIVE TOOLS TO MONITOR PAST LEAKS AROUND HANFORD TANK FARMS  

SciTech Connect

A characterization program has been developed at Hanford to image past leaks in and around the underground storage tank facilities. The program is based on electrical resistivity, a geophysical technique that maps the distribution of electrical properties of the subsurface. The method was shown to be immediately successful in open areas devoid of underground metallic infrastructure, due to the large contrast in material properties between the highly saline waste and the dry sandy host environment. The results in these areas, confirmed by a limited number of boreholes, demonstrate a tendency for the lateral extent of the underground waste plume to remain within the approximate footprint of the disposal facility. In infrastructure-rich areas, such as tank farms, the conventional application of electrical resistivity using small point-source surface electrodes initially presented a challenge for the resistivity method. The method was then adapted to directly use the buried infrastructure as electrodes for both transmission of electrical current and measurements of voltage. For example, steel-cased wells that surround the tanks were used as long electrodes, which helped to avoid much of the infrastructure problems. Overcoming the drawbacks of the long electrode method has been the focus of our work over the past seven years. The drawbacks include low vertical resolution and limited lateral coverage. The lateral coverage issue has been improved by supplementing the long electrodes with surface electrodes in areas devoid of infrastructure. The vertical resolution has been increased by developing borehole electrode arrays that can fit within the small-diameter drive casing of a direct push rig. The evolution of the program has led to some exceptional advances in the application of geophysical methods, including logistical deployment of the technology in hazardous areas, development of parallel processing resistivity inversion algorithms, and adapting the processing tools to accommodate electrodes of all shapes and locations. The program is accompanied by a full set of quality assurance procedures that cover the layout of sensors, measurement strategies, and software enhancements while insuring the integrity of stored data. The data have been shown to be useful in identifying previously unknown contaminant sources and defining the footprint of precipitation recharge barriers to retard the movement of existing contamination.

MYERS DA; RUCKER DF; LEVITT MT; CUBBAGE B; NOONAN GE; MCNEILL M; HENDERSON C

2011-06-17T23:59:59.000Z

446

TESTING GROUND BASED GEOPHYSICAL TECHNIQUES TO REFINE ELECTROMAGNETIC SURVEYS NORTH OF THE 300 AREA HANFORD WASHINGTON  

SciTech Connect

Airborne electromagnetic (AEM) surveys were flown during fiscal year (FY) 2008 within the 600 Area in an attempt to characterize the underlying subsurface and to aid in the closure and remediation design study goals for the 200-PO-1 Groundwater Operable Unit (OU). The rationale for using the AEM surveys was that airborne surveys can cover large areas rapidly at relatively low costs with minimal cultural impact, and observed geo-electrical anomalies could be correlated with important subsurface geologic and hydrogeologic features. Initial interpretation of the AEM surveys indicated a tenuous correlation with the underlying geology, from which several anomalous zones likely associated with channels/erosional features incised into the Ringold units were identified near the River Corridor. Preliminary modeling resulted in a slightly improved correlation but revealed that more information was required to constrain the modeling (SGW-39674, Airborne Electromagnetic Survey Report, 200-PO-1 Groundwater Operable Unit, 600 Area, Hanford Site). Both time-and frequency domain AEM surveys were collected with the densest coverage occurring adjacent to the Columbia River Corridor. Time domain surveys targeted deeper subsurface features (e.g., top-of-basalt) and were acquired using the HeliGEOTEM{reg_sign} system along north-south flight lines with a nominal 400 m (1,312 ft) spacing. The frequency domain RESOLVE system acquired electromagnetic (EM) data along tighter spaced (100 m [328 ft] and 200 m [656 ft]) north-south profiles in the eastern fifth of the 200-PO-1 Groundwater OU (immediately adjacent to the River Corridor). The overall goal of this study is to provide further quantification of the AEM survey results, using ground based geophysical methods, and to link results to the underlying geology and/or hydrogeology. Specific goals of this project are as follows: (1) Test ground based geophysical techniques for the efficacy in delineating underlying geology; (2) Use ground measurements to refine interpretations of AEM data; and (3) Improve the calibration and correlation of AEM information. The potential benefits of this project are as follows: (1) Develop a tool to map subsurface units at the Hanford Site in a rapid and cost effective manner; (2) Map groundwater pathways within the River Corridor; and (3) Aid development of the conceptual site model. If anomalies observed in the AEM data can be correlated with subsurface geology, then the rapid scanning and non-intrusive capabilities provided by the airborne surveys can be used at the Hanford Site to screen for areas that warrant further investigation.

PETERSEN SW

2010-12-02T23:59:59.000Z

447

FAQS Job Task Analyses - Fire Protection Engineering  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Job Task Analysis and Competency Review Job Task Analysis and Competency Review for All Level Competencies Fire Protection Engineering FAQS Initially conducted (expert competencies): August 2010 Updated (includes ALL Competencies): April 2011 Updated (includes ALL Competencies): October 2012 STEP 1: Job Task Analysis for Tasks Task (and Number) Source Importance Frequency Serve as the subject matter expert in the area of fire protection, life safety, and fire department emergency related services. FAQS Duties and Responsibilities Paragraph A 5 4 Review fire hazard analyses, assessments, and other fire safety documentation for compliance with applicable requirements. FAQS Duties and Responsibilities Paragraph B 5 3 Evaluate the adequacy of site emergency services. This includes all facets of the fire

448

Evolutionary analyses of nonfamily genes in plants  

NLE Websites -- All DOE Office Websites (Extended Search)

73 73 © 2012 The Authors. The Plant Journal © 2012 Blackwell Publishing Ltd Received Date : 11-May-2012 Revised Date : 16-Oct-2012 Accepted Date : 07-Nov-2012 Article type : Original Article Evolutionary analyses of non-family genes in plants Chu-Yu Ye 1,2,3,4 , Ting Li 1,3,4 , Hengfu Yin 1 , David J. Weston 1 , Gerald A. Tuskan 1,2 , Timothy J. Tschaplinski 1,2 , Xiaohan Yang 1,2,* 1 Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 2 BioEnergy Science Center, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 3 Present addresses: Beijing Forestry University, Beijing 100083, China (C.-Y.Y.); Pioneer Hi- Bred International, Johnston, IA 50131, USA (T.L.) 4 These authors contributed equally to this work. * Corresponding author:

449

Atmospheric Dispersion Modeling in Safety Analyses; GENII  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Workshop to Discuss Issues Regarding Deposition Workshop to Discuss Issues Regarding Deposition Velocity June 5-6, 2012 Jeremy Rishel Bruce Napier Atmospheric Dispersion Modeling in Safety Analyses: GENII Today's Presentation.... Will provide a high-level overview of the GENII codes. Will cover basic aspects of GENII's acute atmospheric transport model. Will review the GENII deposition model that is used to estimate the deposition velocity used in plume depletion. 2 GENII Development History 1988 - GENII V1 released ICRP-26/30/48 dosimetry 1990 - GENII V1.485 stabilized Current DOE Toolbox Version 1992 - GENII-S stochastic version 2004 - GENII V2 ICRP-72 age-dependent dosimetry Federal Guidance Report 13 risk factors

450

Planning analyses for geothermal district heating  

DOE Green Energy (OSTI)

Methodology and data bases are described which can provide a comprehensive planning assessment of the potential for geothermal district heating in any US market. This economic systems model encompasses life-cycle costing over a period of rising competitive fuel prices, it addresses the expansion and financing of a district system over time, and it includes an overall optimization of system design. The elemental area for all analyses is the census tract, for which published data allow estimation of residential and commercial heating demands, building retrofit requirements, and competitive fuel consumption and cost. A system type design, an appropriate hot water district piping system, and costing of heat supply is performed for groups of contiguous tracts in any urban market. Groups are aggregated, in decreasing benefit to cost order, to achieve optimal systems. A specific application for Salt Lake City, Utah, is also described.

Tessmer, R.G. Jr.; Karkheck, J.

1979-12-01T23:59:59.000Z

451

TRACE ELEMENT ANALYSES OF URANIUM MATERIALS  

SciTech Connect

The Savannah River National Laboratory (SRNL) has developed an analytical method to measure many trace elements in a variety of uranium materials at the high part-per-billion (ppb) to low part-per-million (ppm) levels using matrix removal and analysis by quadrapole ICP-MS. Over 35 elements were measured in uranium oxides, acetate, ore and metal. Replicate analyses of samples did provide precise results however none of the materials was certified for trace element content thus no measure of the accuracy could be made. The DOE New Brunswick Laboratory (NBL) does provide a Certified Reference Material (CRM) that has provisional values for a series of trace elements. The NBL CRM were purchased and analyzed to determine the accuracy of the method for the analysis of trace elements in uranium oxide. These results are presented and discussed in the following paper.

Beals, D; Charles Shick, C

2008-06-09T23:59:59.000Z

452

A Hybrid Hydrologic-Geophysical Inverse Technique for the Assessment and Monitoring of Leachates in the Vadose Zone  

SciTech Connect

The objective of this study is to develop and field test a new, integrated Hybrid Hydrologic-Geophysical Inverse Technique (HHGIT) for characterization of the vadose zone at contaminated sites. This new approach to site characterization and monitoring can provide detailed maps of hydrogeological heterogeneity and the extent of contamination by combining information from 3D electric resistivity tomography (ERT) and/or 2D cross borehole ground penetrating radar (XBGPR) surveys, statistical information about heterogeneity and hydrologic processes, and sparse hydrologic data. Because the electrical conductivity and dielectric constant of the vadose zone (from the ERT and XBGPR measurements, respectively) can be correlated to the fluid saturation and/or contaminant concentration, the hydrologic and geophysical measurements are related.

ALUMBAUGH,DAVID L.; YEH,JIM; LABRECQUE,DOUG; GLASS,ROBERT J.; BRAINARD,JAMES; RAUTMAN,CHRIS

1999-06-15T23:59:59.000Z

453

Geologic, geophysical, and geochemical aspects of site-specific studies of the geopressured-geothermal energy resource of southern Louisiana. Final report  

DOE Green Energy (OSTI)

The report consists of four sections dealing with progress in evaluating geologic, geochemical, and geophysical aspects of geopressured-geothermal energy resources in Louisiana. Separate abstracts have been prepared for the individual sections. (ACR)

Pilger, R.H. Jr. (ed.)

1985-01-01T23:59:59.000Z

454

Institute of Geophysics and Planetary Physics (IGPP), Lawrence Livermore National Laboratory (LLNL): Quinquennial report, November 14-15, 1996  

Science Conference Proceedings (OSTI)

This Quinquennial Review Report of the Lawrence Livermore National Laboratory (LLNL) branch of the Institute for Geophysics and Planetary Physics (IGPP) provides an overview of IGPP-LLNL, its mission, and research highlights of current scientific activities. This report also presents an overview of the University Collaborative Research Program (UCRP), a summary of the UCRP Fiscal Year 1997 proposal process and the project selection list, a funding summary for 1993-1996, seminars presented, and scientific publications. 2 figs., 3 tabs.

Tweed, J.

1996-10-01T23:59:59.000Z

455

Fall 2007 American Geophysical Union Meeting Student Travel Support for Environmental Nanomaterials Session (#B35) (December 10-14, 2007)  

Science Conference Proceedings (OSTI)

The purpose of award no. DE-FG02-08ER15925 was to fund travel for students to present at the Fall 2007 American Geophysical Meeting. This was done successfully, and five students (Bin Xie, Qiaona Hu, Katie Schreiner, Daria Kibanova, and Frank-Andreas Weber) gave excellent oral and poster presentations at the meeting. Provided are the conference abstracts for their presentations.

Michael F. Hochella, Jr.

2007-10-01T23:59:59.000Z

456

An Analysis of Wind Power Development in the Town of Hull, MA_Appendix 4_Geophysical Survey Report  

SciTech Connect

CR Environmental, Inc. (CR) was contracted by GZA GeoEnvironmental, Inc. (GZA) to perform hydrographic and geophysical surveys of an approximately 3.35 square mile area off the eastern shore of Hull, Massachusetts. Survey components included: • Single-beam bathymetry; • 100-kHz and 500-kHz side scan sonar; • Magnetometry; and • Low to mid-frequency sub-bottom profiling.

Adams, Christopher

2013-06-30T23:59:59.000Z

457

Observation of dynamic crossover and dynamic heterogeneity in hydration water confined in aged cement paste  

NLE Websites -- All DOE Office Websites (Extended Search)

502101 502101 (6pp) doi:10.1088/0953-8984/20/50/502101 FAST TRACK COMMUNICATION Observation of dynamic crossover and dynamic heterogeneity in hydration water confined in aged cement paste Y Zhang 1 , M Lagi 1,2 , F Ridi 2 , E Fratini 2 , P Baglioni 2 , E Mamontov 3 and S H Chen 1,4 1 Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA 2 Department of Chemistry and CSGI, University of Florence, Sesto Fiorentino, Florence, I-50019, Italy 3 Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA E-mail: sowhsin@mit.edu Received 24 September 2008, in final form 23 October 2008 Published 12 November 2008 Online at stacks.iop.org/JPhysCM/20/502101 Abstract High resolution quasi-elastic neutron scattering is used to investigate the slow dynamics of hydration water confined in calcium silicate hydrate

458

INFORMAL REPORT PROPERTIES AND PERFORMANCE OF CEMENT- BASED GROUTS FOR GEOTHERMAL HEAT  

Office of Scientific and Technical Information (OSTI)

67006 67006 INFORMAL REPORT PROPERTIES AND PERFORMANCE OF CEMENT- BASED GROUTS FOR GEOTHERMAL HEAT PUMP APPLICATIONS FINAL REPORT FY 1999 M.L. Allan and A.J. Philippacopoulos November 1999 Prepared for: Office of Geothermal Technologies United States Department of Energy Washington, DC 20585 Materials and Chemical Sciences Division DISCLAIMER This document was prepared as an account of work sponsored by an agenc:y of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees makers any warranty, express or implied, or assumes any legal liability or responsibility of the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed, or represents that its use

459

Microsoft Word - NETL-TRS-003-2012_Cementing Research Needs_20121207.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

Assessment of Research Needs Assessment of Research Needs Related to Improving Primary Cement Isolation of Formations in Deep Offshore Wells 7 December 2012 Office of Fossil Energy NETL-TRS-3-2012 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its

460

Microsoft Word - CSC for Indian Cement Final_2013-8-1  

NLE Websites -- All DOE Office Websites (Extended Search)

Cement Industry William R. Morrow III, Ali Hasanbeigi, Jayant Sathaye, Tengfang Xu Energy Analysis and Environmental Impacts Department, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, Berkeley, CA USA February 2013 This study is sponsored by Climate Economics Branch, Climate Change Division of U.S. Environmental Protecstion Agency, under Contract No. DE-AC02- 05CH11231 with the U.S. Department of Energy. ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY LBNL-6337E Disclaimer This document was prepared as an account of work sponsored by the United States Government. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor The Regents of the University of

Note: This page contains sample records for the topic "geophysics analyses cement" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


First Page Previous Page 1 2 3 4 5 6 7 8 9 10