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1

A model comparison initiative for a CO2 injection field test: An introduction to Sim-SEQ  

E-Print Network [OSTI]

in the water leg of a CO 2 -EOR field with a strong waterwater leg of an active CO 2 -EOR field with a strong waterthe presence of an active EOR operation nearby may also

Mukhopadhyay, S.

2013-01-01T23:59:59.000Z

2

DOE Partner Begins Injecting 50,000 Tons of CO2 in Michigan Basin  

Broader source: Energy.gov [DOE]

Building on an initial injection project of 10,000 metric tons of carbon dioxide into a Michigan geologic formation, a U.S. Department of Energy team of regional partners has begun injecting 50,000 additional tons into the formation, which is believed capable of storing hundreds of years worth of CO2, a greenhouse gas that contributes to climate change.

3

CO2 Injection Begins in Illinois | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energyon ArmedWaste andAccessCO2 Injection Begins in Illinois CO2 Injection Begins in

4

A parametric study on reservoir cooling for enhanced oil recovery from CO2 injection.  

E-Print Network [OSTI]

??Whorton et al. (1952) received a patent for their development of an oil recovery method by CO2 injection. Since then, CO2 flooding for secondary and… (more)

Wang, Zhenzhen

2013-01-01T23:59:59.000Z

5

Rcupration assiste d'hydrocarbures, conventionnels ou non, par injection de CO2.  

E-Print Network [OSTI]

· Récupération d' hydrocarbures conventionnels - CO2 ­ EOR enhanced oil recovery - CO2 ­ EGR enhanced gas-combustion (gas processing) 7 EOR 1986 Sleipner CO2 Injection Norway Pre-combustion (gas processing) 1 (+ 0 EOR 2000 Enid Fertilizer Plant United States Pre-combustion (fertiliser) 0.7 EOR 1982 In Salah CO2

Canet, Léonie

6

USING TIME-LAPSE SEISMIC MEASUREMENTS TO IMPROVE FLOW MODELING OF CO2 INJECTION  

E-Print Network [OSTI]

Marly. The EOR process in the RCP section of the Weyburn Field uses CO2 and water injection to displaceUSING TIME-LAPSE SEISMIC MEASUREMENTS TO IMPROVE FLOW MODELING OF CO2 INJECTION IN THE WEYBURN, particularly CO2. Time lapse seismic monitoring has motivated changes to the reservoir description in a flow

7

9,248,559 Metric Tons of CO2 Injected as of January 16, 2015  

Broader source: Energy.gov [DOE]

This carbon dioxide (CO2) has been injected in the United States as part of DOE’s Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is equivalent to the...

8

9,981,117 Metric Tons of CO2 Injected as of April 2, 2015 | Department...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

9

9,449,421 Metric Tons of CO2 Injected as of February 12, 2015...  

Office of Environmental Management (EM)

This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

10

9,805,742 Metric Tons of CO2 Injected as of February 27, 2015...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

This carbon dioxide (CO2) has been injected in the United States as part of DOE's Clean Coal Research, Development, and Demonstration Programs. One million metric tons of CO2 is...

11

Numerical simulations of the thermal impact of supercritical CO2 injection on chemical  

E-Print Network [OSTI]

Numerical simulations of the thermal impact of supercritical CO2 injection on chemical reactivity, investigates thermal effects during CO2 injection into a deep carbonate formation. Different thermal processes in carbonate aquifers, and the influence of anthropic thermal processes (e.g., injection temperature

Boyer, Edmond

12

9,030,305 Metric Tons of CO2 Injected as of January 6, 2015 ...  

Office of Environmental Management (EM)

210,526 passenger vehicles. The projects currently injecting CO2 within DOE's Regional Carbon Sequestration Partnership Program and the Major Demonstration Program are detailed...

13

9,959,066 Metric Tons of CO2 Injected as of March 26, 2015 |...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

210,526 passenger vehicles. The projects currently injecting CO2 within DOE's Regional Carbon Sequestration Partnership Program and the Major Demonstration Program are detailed...

14

9,932,381 Metric Tons of CO2 Injected as of March 18, 2015 |...  

Office of Environmental Management (EM)

210,526 passenger vehicles. The projects currently injecting CO2 within DOE's Regional Carbon Sequestration Partnership Program and the Major Demonstration Program are detailed...

15

9,894,105 Metric Tons of CO2 Injected as of March 12, 2015 |...  

Broader source: Energy.gov (indexed) [DOE]

210,526 passenger vehicles. The projects currently injecting CO2 within DOE's Regional Carbon Sequestration Partnership Program and the Major Demonstration Program are detailed...

16

8,993,963 Metric Tons of CO2 Injected as of December 17, 2014...  

Energy Savers [EERE]

210,526 passenger vehicles. The projects currently injecting CO2 within DOE's Regional Carbon Sequestration Partnership Program and the Major Demonstration Program are detailed...

17

Geologic Carbon Sequestration: Mitigating Climate Change by Injecting CO2 Underground (LBNL Summer Lecture Series)  

SciTech Connect (OSTI)

Summer Lecture Series 2009: Climate change provides strong motivation to reduce CO2 emissions from the burning of fossil fuels. Carbon dioxide capture and storage involves the capture, compression, and transport of CO2 to geologically favorable areas, where its injected into porous rock more than one kilometer underground for permanent storage. Oldenburg, who heads Berkeley Labs Geologic Carbon Sequestration Program, will focus on the challenges, opportunities, and research needs of this innovative technology.

Oldenburg, Curtis M. (LBNL Earth Sciences Division) [LBNL Earth Sciences Division

2009-07-21T23:59:59.000Z

18

Geologic Carbon Sequestration: Mitigating Climate Change by Injecting CO2 Underground (LBNL Summer Lecture Series)  

ScienceCinema (OSTI)

Summer Lecture Series 2009: Climate change provides strong motivation to reduce CO2 emissions from the burning of fossil fuels. Carbon dioxide capture and storage involves the capture, compression, and transport of CO2 to geologically favorable areas, where its injected into porous rock more than one kilometer underground for permanent storage. Oldenburg, who heads Berkeley Labs Geologic Carbon Sequestration Program, will focus on the challenges, opportunities, and research needs of this innovative technology.

Oldenburg, Curtis M [LBNL Earth Sciences Division

2011-04-28T23:59:59.000Z

19

Geologic Carbon Sequestration: Mitigating Climate Change by Injecting CO2 Underground  

SciTech Connect (OSTI)

July 21, 2009 Berkeley Lab summer lecture: Climate change provides strong motivation to reduce CO2 emissions from the burning of fossil fuels. Carbon dioxide capture and storage involves the capture, compression, and transport of CO2 to geologically favorable areas, where its injected into porous rock more than one kilometer underground for permanent storage. Oldenburg, who heads Berkeley Labs Geologic Carbon Sequestration Program, will focus on the challenges, opportunities, and research needs of this innovative technology.

Oldenburg

2009-07-30T23:59:59.000Z

20

Modeling the resolution of inexpensive, novel non-seismic geophysical monitoring tools to monitor CO2 injection into coal beds  

E-Print Network [OSTI]

Plasynski, S. , 2008, Advancing Coal-Based Power Generationto monitor CO 2 injection into Coal Beds as a part of theanalysis for CO 2 movement in coal beds was based on the

Gasperikova, E.

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

3. FIELD DEMONSTRATION STATUS We are currently in the final stages of preparation in the pilot area prior to CO2 injection.  

E-Print Network [OSTI]

of these tests to characterize further the reservoir and develop proper reservoir management strategy has been-well interference test. Stable water injection was initiated in October of 1999 in order to increase the reservoir of a waterflood baseline decline so that all produced oil as a result of CO2 injection can be quantified

Schechter, David S.

22

DOE Partnership Completes Successful CO2 Injection Test in the Mount Simon Sandstone  

Broader source: Energy.gov [DOE]

The Midwest Regional Carbon Sequestration Partnership, one of seven partnerships in the U.S. Department of Energy's Regional Carbon Sequestration Partnerships program, has successfully injected 1,000 metric tons of carbon dioxide (CO2) into the Mount Simon Sandstone, a deep saline formation that is widespread across much of the Midwest.

23

2. INVESTIGATION OF CO2 GRAVITY DRAINAGE AFTER WATER INJECTION IN FRACTURED SYSTEMS  

E-Print Network [OSTI]

on whole diameter Berea cores and Spraberry cores under the conditions of reservoir temperature fractured cores, five experiments had been performed on Berea and Spraberry reservoir cores. The properties investigations was designed to model the actual field experience of waterflooding followed by CO2 injection

Schechter, David S.

24

A Comparative Review of Hydrologic Issues Involved in Geologic Storage of CO2 and Injection Disposal of Liquid Waste  

E-Print Network [OSTI]

J. , and Jammes, L. , Well integrity in CO 2 environments:nine areas: Injection well integrity Abandoned well problemswastes. A number of well-integrity failures in the 1960s and

Tsang, C.-F.

2009-01-01T23:59:59.000Z

25

Changes in the chemistry of shallow groundwater related to the 2008 injection of CO2 at the ZERT field site, Bozeman, Montana  

E-Print Network [OSTI]

and as observed in enhanced oil recovery (EOR) operations (CO 2 -injection enhanced oil recovery site, Saskatchewan,

2010-01-01T23:59:59.000Z

26

Changes in the chemistry of shallow groundwater related to the 2008 injection of CO2 at the ZERT Field Site, Bozeman, Montana  

E-Print Network [OSTI]

and as observed in enhanced oil recovery (EOR) operations (CO 2 -injection enhanced oil recovery site, Saskatchewan,

Kharaka, Y.K.

2010-01-01T23:59:59.000Z

27

Comparison of the Wymark CO2 Reservoir with the Midale Beds at the Weyburn CO2 Injection Project  

SciTech Connect (OSTI)

The Devonian carbonates of the Duperow Formation on the western flank of the Williston Basin in southwest Saskatchewan contain natural accumulations of CO{sub 2}, and may have done so for as long as 50 m.y. in the views of some investigations. These carbonate sediments are characterized by a succession of carbonate cycles capped by anhydrite-rich evaporites that are thought to act as seals to fluid migration. The Weyburn CO{sub 2} injection site lies 400 km to the east in a series of Mississippian carbonates that were deposited in a similar depositional environment. That natural CO{sub 2} can be stored long-term within carbonate strata has motivated the investigation of the Duperow rocks as a potential natural analogue to storage of anthropogenic CO{sub 2} that may ultimately provide additional confidence for CO{sub 2} sequestration in carbonate lithologies. For the Duperow strata to represent a legitimate analog for Midale injection and storage, the similarity in lithofacies, whole rock compositions, mineral compositions and porosity with the Midale Beds must be established. Previous workers have demonstrated the similarity of the lithofacies at both sites. Here we compare the whole rock compositions, mineralogy and mineral compositions. The major mineral phases at both locales are calcite, dolomite and anhydrite. In addition, accessory pyrite, fluorite and celestine are also observed. The distribution of porosity in the Midale Vuggy units is virtually identical to that of the Duperow Formation, but the Marly units of the Midale have significantly higher porosity. The Duperow Formation is topped by the Dinesmore evaporite that is particularly rich in anhydrite, and often contains authigenic K-feldspar. The chemistry of dolomite and calcite from the two localities also overlaps. Silicate minerals are in low abundance within the analyzed Duperow samples, < 3 wt% on a normative basis, with quartz the only phase identifiable in x-ray diffraction patterns. The Midale Beds contain significantly higher silica/silicate concentrations, but the silicate minerals observed, K-feldspar and quartz, are unlikely to participate in carbonate mineral precipitation due to the absence of alkaline earths. Hence, physical and solution trapping are likely to be the primary trapping mechanisms at both sites. Given the similarity of mineral constituents, whole rock and mineral chemistry, reactive transport models developed for the Weyburn site should also be applicable to the Duperow lithologies.

Ryerson, F; Johnson, J

2010-11-22T23:59:59.000Z

28

Impact of porous medium desiccation during anhydrous CO2 injection in deep saline aquifers: up scaling from experimental  

E-Print Network [OSTI]

into the atmosphere. CO2 is captured from exhaust gas in power plants or industrial units and then stored of the saturation profile evolution with two phase flow model integrating thermal effects. An up scaling on recent experiments and numerical simulations, the near-well injection zone is identified

Boyer, Edmond

29

CO2 Injection in Vertical and Horizontal Cores: Measurements and Numerical  

E-Print Network [OSTI]

- covery in both new reservoirs, and reservoirs that have been pre- viously depleted and/or water flooded high-pressure and low-temperature reservoirs, the den- sity of CO2 may be substantially higher than the oil density. Upon mixing of CO2 and oil, a gas phase with a high content of methane (C1) may also

Firoozabadi, Abbas

30

Complex Flow and Composition Path in CO2 Injection Schemes from Density Effects  

E-Print Network [OSTI]

causes for acceleration in global warming. Because fossil fuels will be a critical component of the world (1) allows for reduction of the CO2 concentration in the atmosphere to reduce global warming and (2) has become more attractive from the standpoint of global warming concerns. The increase in the CO2

Firoozabadi, Abbas

31

Imaging of CO2 injection during an enhanced-oil-recovery experiment  

E-Print Network [OSTI]

Injection during an Enhanced-Oil-Recovery Experiment RolandEnergy (DOE) as an enhanced oil recovery (EOR) project, was

Gritto, Roland; Daley, Thomas M.; Myer, Larry R.

2003-01-01T23:59:59.000Z

32

Toward Verifying Fossil Fuel CO2 Emissions with the CMAQ Model: Motivation, Model Description and Initial Simulation  

SciTech Connect (OSTI)

Motivated by the urgent need for emission verification of CO2 and other greenhouse gases, we have developed regional CO2 simulation with CMAQ over the contiguous U.S. Model sensitivity experiments have been performed using three different sets of inputs for net ecosystem exchange (NEE) and two fossil fuel emission inventories, to understand the roles of fossil fuel emissions, atmosphere-biosphere exchange and transport in regulating the spatial and diurnal variability of CO2 near the surface, and to characterize the well-known ‘signal-to-noise’ problem, i.e. the interference from the biosphere on the interpretation of atmospheric CO2 observations. It is found that differences in the meteorological conditions for different urban areas strongly contribute to the contrast in concentrations. The uncertainty of NEE, as measured by the difference among the three different NEE inputs, has notable impact on regional distribution of CO2 simulated by CMAQ. Larger NEE uncertainty and impact are found over eastern U.S. urban areas than along the western coast. A comparison with tower CO2 measurements at Boulder Atmospheric Observatory (BAO) shows that the CMAQ model using hourly varied and high-resolution CO2 emission from the Vulcan inventory and CarbonTracker optimized NEE reasonably reproduce the observed diurnal profile, whereas switching to different NEE inputs significantly degrades the model performance. Spatial distribution of CO2 is found to correlate with NOx, SO2 and CO, due to their similarity in emission sources and transport processes. These initial results from CMAQ demonstrate the power of a state-of-the art CTM in helping interpret CO2 observations and verify fossil fuel emissions. The ability to simulate CO2 in CMAQ will also facilitate investigations of the utility of traditionally regulated pollutants and other species as tracers to CO2 source attribution.

Liu, Zhen; Bambha, Ray P.; Pinto, Joseph P.; Zeng, Tao; Boylan, Jim; Huang, Maoyi; Lei, Huimin; Zhao, Chun; Liu, Shishi; Mao, Jiafu; Schwalm, Christopher R.; Shi, Xiaoying; Wei, Yaxing; Michelsen, Hope A.

2014-03-14T23:59:59.000Z

33

Investigation of Efficiency Improvements During CO2 Injection in Hydraulically and Naturally Fractured Reservoirs  

SciTech Connect (OSTI)

The objective of this project was to perform unique laboratory experiments with artificial fractured cores (AFCs) and X-ray CT to examine the physical mechanisms of bypassing in HFR and NFR that eventually result in less efficient CO2 flooding in heterogeneous or fracture-dominated reservoirs. This report provided results of the second semi-annual technical progress report that consists of three different topics.

Schechter, David S.; Vance, Harold

2003-03-10T23:59:59.000Z

34

Experimental and Simulation Studies to Evaluate the Improvement of Oil Recovery by Different Modes of CO2 Injection in Carbonate Reservoirs  

E-Print Network [OSTI]

Experimental and numerical simulation studies were conducted to investigate the improvement of light oil recovery in carbonate cores during CO2 injection. The main steps in the study are as follows. First, the minimum miscibility pressure of 31º...

Aleidan, Ahmed Abdulaziz S.

2011-02-22T23:59:59.000Z

35

Modeling Density Effects in CO2 Injection in Oil Reservoirs and A Case Study of CO2 Sequestration in a Qatari Saline Aquifer  

E-Print Network [OSTI]

(and density) of a reference component (usually methane) and other factors that are independent of mixture density. Therefore, modifying the shift parameter of CO2 does not affect the viscosity of the mixture. Table 2.1 – Fluid composition...

Ahmed, Tausif

2012-10-19T23:59:59.000Z

36

MathematicalModelingofCarbonDioxide(CO2)Injection intheSubsurfaceforImprovedHydrocarbonRecoveryand  

E-Print Network [OSTI]

phase compared to the diffusion-only case. References [1] World Energy Outlook, International Energy and Environmental Engineering, Yale University, New Haven, CT 06511, USA World Energy Demand Global energy demand injection schemes from density effects, Energy and Fuels 26 (2012) 4590­4598. doi:10.1021/ef300502f. [3] K

Firoozabadi, Abbas

37

Seismic Evaluation of the Fruitland Formation with Implications on Leakage Potential of Injected CO2  

E-Print Network [OSTI]

Seismic Evaluation of the Fruitland Formation with Implications on Leakage Potential of Injected CO Basin pilot test include acquisition of geophysical logs, time lapse VSP and analysis of 3D seismic data on the analysis of 3D seismic from the area. 3D seismic interpretation reveals that the Late Cretaceous Fruitland

Wilson, Thomas H.

38

INVESTIGATION OF EFFICIENCY IMPROVEMENTS DURING CO2 INJECTION IN HYDRAULICALLY AND NATURALLY FRACTURED RESERVOIRS  

SciTech Connect (OSTI)

This report describes the work performed during the second year of the project, ''Investigating of Efficiency Improvements during CO{sub 2} Injection in Hydraulically and Naturally Fractured Reservoirs.'' The objective of this project is to perform unique laboratory experiments with artificial fractured cores (AFCs) and X-ray CT to examine the physical mechanisms of bypassing in HFR and NFR that eventually result in less efficient CO{sub 2} flooding in heterogeneous or fracture-dominated reservoirs. To achieve this objective, in this period we concentrated our effort on investigating the effect of CO{sub 2} injection rates in homogeneous and fractured cores on oil recovery and a strategy to mitigate CO{sub 2} bypassing in a fractured core.

David S. Schechter

2004-04-26T23:59:59.000Z

39

Injection, flow, and mixing of CO2 in porous media with residual gas.  

SciTech Connect (OSTI)

Geologic structures associated with depleted natural gas reservoirs are desirable targets for geologic carbon sequestration (GCS) as evidenced by numerous pilot and industrial-scale GCS projects in these environments world-wide. One feature of these GCS targets that may affect injection is the presence of residual CH{sub 4}. It is well known that CH{sub 4} drastically alters supercritical CO{sub 2} density and viscosity. Furthermore, residual gas of any kind affects the relative permeability of the liquid and gas phases, with relative permeability of the gas phase strongly dependent on the time-history of imbibition or drainage, i.e., dependent on hysteretic relative permeability. In this study, the effects of residual CH{sub 4} on supercritical CO{sub 2} injection were investigated by numerical simulation in an idealized one-dimensional system under three scenarios: (1) with no residual gas; (2) with residual supercritical CO{sub 2}; and (3) with residual CH{sub 4}. We further compare results of simulations that use non-hysteretic and hysteretic relative permeability functions. The primary effect of residual gas is to decrease injectivity by decreasing liquid-phase relative permeability. Secondary effects arise from injected gas effectively incorporating residual gas and thereby extending the mobile gas plume relative to cases with no residual gas. Third-order effects arise from gas mixing and associated compositional effects on density that effectively create a larger plume per unit mass. Non-hysteretic models of relative permeability can be used to approximate some parts of the behavior of the system, but fully hysteretic formulations are needed to accurately model the entire system.

Oldenburg, C.M.; Doughty, C.A.

2010-09-01T23:59:59.000Z

40

Flow Instabilities During Injection of CO2 into SalineAquifers  

SciTech Connect (OSTI)

Injection of carbon dioxide (CO{sub 2}) into saline aquifers has been proposed as a means to reduce greenhouse gas emissions (geological carbon sequestration). The injection process can be classified as immiscible displacement of an aqueous phase by a less dense and less viscous gas phase. Under disposal conditions (supercritical CO{sub 2}) the viscosity of carbon dioxide can be less than the viscosity of the aqueous phase by a factor of 15. Because of the lower viscosity, the CO{sub 2} displacement front will have a tendency towards instability so that waves or rounded lobes of saturation may appear and grow into fingers that lead to enhanced dissolution, bypassing, and possibly poor sweep efficiency. This paper presents an analysis, through high-resolution numerical simulations, of the onset of instabilities (viscous fingering) during injection of CO{sub 2} into saline aquifers. We explore the influence of viscosity ratio, relative permeability functions, and capillary pressure on finger growth and spacing. In addition, we address the issues of finger triggering, convergence under grid refinement and boundary condition effects. Simulations were carried out on scalar machines, and on an IBM RS/6000 SP (a distributed-memory parallel computer with 6080 processors) with a parallelized version of TOUGH2.

Garcia, Julio E.; Pruess, Karsten

2003-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

INVESTIGATION OF EFFICIENCY IMPROVEMENTS DURING CO2 INJECTION IN HYDRAULICALLY AND NATURALLY FRACTURED RESERVOIRS  

SciTech Connect (OSTI)

This report describes the work performed during the third year of the project, ''Investigating of Efficiency Improvements during CO{sub 2} Injection in Hydraulically and Naturally Fractured Reservoirs.'' The objective of this project is to perform unique laboratory experiments with artificial fractured cores (AFCs) and X-ray CT to examine the physical mechanisms of bypassing in HFR and NFR that eventually result in more efficient CO{sub 2} flooding in heterogeneous or fracture-dominated reservoirs. To achieve this objective, in this period we concentrated our effort on modeling fluid flow through rough fractures and investigating the grid orientation effect in rectangular grid blocks particularly at high mobility ratio as our precursor to use a compositional simulator. We are developing a robust simulator using Voronoi grids to accurately represent natural and induced fractures. We are also verifying the accuracy of the simulation using scaled laboratory experiments to provide a benchmark for our simulation technique. No such simulator currently exists so this capability will represent a major breakthrough in simulation of gas injection in fractured systems. The following sections outline the results that appear in this report.

David S. Schechter

2004-10-10T23:59:59.000Z

42

INVESTIGATION OF EFFICIENCY IMPROVEMENTS DURING CO2 INJECTION IN HYDRAULICALLY AND NATURALLY FRACTURED RESERVOIRS  

SciTech Connect (OSTI)

This report describes the work performed during the second year of the project, ''Investigating of Efficiency Improvements during CO{sub 2} Injection in Hydraulically and Naturally Fractured Reservoirs.'' The objective of this project is to perform unique laboratory experiments with artificial fractured cores (AFCs) and X-ray CT to examine the physical mechanisms of bypassing in HFR and NFR that eventually result in less efficient CO{sub 2} flooding in heterogeneous or fracture-dominated reservoirs. To achieve this objective, in this period we concentrated our effort on modeling the fluid flow in fracture surface, examining the fluid transfer mechanisms and describing the fracture aperture distribution under different overburden pressure using X-ray CT scanner.

David S. Schechter

2003-10-01T23:59:59.000Z

43

OIL RESERVOIR CHARACTERIZATION AND CO2 INJECTION MONITORING IN THE PERMIAN BASIN WITH CROSSWELL ELECTROMAGNETIC IMAGING  

SciTech Connect (OSTI)

Substantial petroleum reserves exist in US oil fields that cannot be produced economically, at current prices, unless improvements in technology are forthcoming. Recovery of these reserves is vital to US economic and security interests as it lessens our dependence on foreign sources and keeps our domestic petroleum industry vital. Several new technologies have emerged that may improve the situation. The first is a series of new flooding techniques to re-pressurize reservoirs and improve the recovery. Of these the most promising is miscible CO{sub 2} flooding, which has been used in several US petroleum basins. The second is the emergence of new monitoring technologies to track and help manage this injection. One of the major players in here is crosswell electromagnetics, which has a proven sensitivity to reservoir fluids. In this project, we are applying the crosswell EM technology to a CO{sub 2} flood in the Permian Basin oil fields of New Mexico. With our partner ChevronTexaco, we are testing the suitability of using EM for tracking the flow of injected CO{sub 2} through the San Andreas reservoir in the Vacuum field in New Mexico. The project consisted of three phases, the first of which was a preliminary field test at Vacuum, where a prototype system was tested in oil field conditions including widely spaced wells with steel casing. The results, although useful, demonstrated that the older technology was not suitable for practical deployment. In the second phase of the project, we developed a much more powerful and robust field system capable of collecting and interpreting field data through steel-cased wells. The final phase of the project involved applying this system in field tests in the US and overseas. Results for tests in steam and water floods showed remarkable capability to image between steel wells and provided images that helped understand the geology and ongoing flood and helped better manage the field. The future of this technology is indeed bright with development ongoing and a commercialization plan in place. We expect that this DOE sponsored technology will be a major technical and commercial success story in the coming years.

Michael Wilt

2004-02-01T23:59:59.000Z

44

Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II  

SciTech Connect (OSTI)

The purpose of this project was to economically design an optimum carbon dioxide (CO2) flood for a mature waterflood nearing its economic abandonment. The original project utilized advanced reservoir characterization and CO2 horizontal injection wells as the primary methods to redevelop the South Cowden Unit (SCU). The development plans; project implementation and reservoir management techniques were to be transferred to the public domain to assist in preventing premature abandonment of similar fields.

Wier, Don R. Chimanhusky, John S.; Czirr, Kirk L.; Hallenbeck, Larry; Gerard, Matthew G.; Dollens, Kim B.; Owen, Rex; Gaddis, Maurice; Moshell, M.K.

2002-11-18T23:59:59.000Z

45

INVESTIGATION OF EFFICIENCY IMPROVEMENTS DURING CO2 INJECTION IN HYDRAULICALLY AND NATURALLY FRACTURED RESERVOIRS  

SciTech Connect (OSTI)

The objective of this project is to perform unique laboratory experiments with artificial fractured cores (AFCs) and X-ray CT to examine the physical mechanisms of bypassing in HFR and NFR that eventually result in more efficient CO{sub 2} flooding in heterogeneous or fracture-dominated reservoirs. To achieve this objective, we divided the report into two chapters. The first chapter was to image and perform experimental investigation of transfer mechanisms during CO{sub 2} flooding in NFR and HFR using X-ray CT scanner. In this chapter, we emphasized our work on understanding the connection between fracture properties and fundamentals of transfer mechanism from matrix to fractures and fluid flow through fracture systems. We started our work by investigating the effect of different overburden pressures and stress-state conditions on rock properties and fluid flow. Since the fracture aperture is one of important parameter that governs the fluid flow through the fracture systems, the average fracture aperture from the fluid flow experiments and fracture aperture distribution derived from X-ray CT scan were estimated for our modeling purposes. The fracture properties and fluid flow have significant changes in response to different overburden pressures and stress-state conditions. The fracture aperture distribution follows lognormal distribution even at elevated stress conditions. Later, we also investigated the fluid transfers between matrix and fracture that control imbibition process. We evaluated dimensionless time for validating the scheme of upscaling laboratory experiments to field dimensions. In CO{sub 2} injection experiments, the use of X-ray CT has allowed us to understand the mechanisms of CO{sub 2} flooding process in fractured system and to take important steps in reducing oil bypassed. When CO{sub 2} flooding experiments were performed on a short core with a fracture at the center of the core, the gravity plays an important role in the recovery of oil even in a short matrix block. This results are contrary with the previous believes that gravity drainage has always been associated with tall matrix blocks. In order to reduce oil bypassed, we injected water that has been viscosified with a polymer into the fracture to divert CO{sub 2} flow into matrix and delay CO{sub 2} breakthrough. Although the breakthrough time reduced considerably, water ''leak off'' into the matrix was very high. A cross-linked gel was used in the fracture to avoid this problem. The gel was found to overcome ''leak off'' problems and effectively divert CO{sub 2} flow into the matrix. As part of our technology transfer activity, we investigated the natural fracture aperture distribution of Tensleep formation cores. We found that the measured apertures distributions follow log normal distribution as expected. The second chapter deals with analysis and modeling the laboratory experiments and fluid flow through fractured networks. We derived a new equation to determine the average fracture aperture and the amount of each flow through fracture and matrix system. The results of this study were used as the observed data and for validating the simulation model. The idea behind this study is to validate the use of a set of smooth parallel plates that is common in modeling fracture system. The results suggest that fracture apertures need to be distributed to accurately model the experimental results. In order to study the imbibition process in details, we developed imbibition simulator. We validated our model with X-ray CT experimental data from different imbibition experiments. We found that the proper simulation model requires matching both weight gain and CT water saturation simultaneously as oppose to common practices in matching imbibition process with weight gain only because of lack information from CT scan. The work was continued by developing dual porosity simulation using empirical transfer function (ETF) derived from imbibition experiments. This allows reduction of uncertainty parameter in modeling transfer of fluids from matrix to the fra

David S. Schechter

2005-09-28T23:59:59.000Z

46

Modeling the resolution of inexpensive, novel non-seismic geophysical monitoring tools to monitor CO2 injection into coal beds  

E-Print Network [OSTI]

of enhanced oil recovery (EOR) projects showed them to bestudy of proposed CO 2 EOR/sequestration of the SchraderAbbreviations CBM CO 2 Ex Ey EM EOR Im ?Gal NIST Re Rx S Tx

Gasperikova, E.

2010-01-01T23:59:59.000Z

47

Well injectivity during CO2 storage operations in deep saline aquifers6 1: Experimental investigation of drying effects, salt precipitation and7  

E-Print Network [OSTI]

Carbon Capture and Storage (CCS) is a technique than can potentially limit the accumulation29-17Jan2014 #12;3 1. Introduction51 52 Geological sequestration of CO2 into deep saline aquifers studied54 much less than mature oil & gas reservoirs. Injection of carbon dioxide into saline aquifers55

Boyer, Edmond

48

Effect of Oxygen Co-Injected with Carbon Dioxide on Gothic Shale Caprock-CO2-Brine Interaction during Geologic Carbon Sequestration  

SciTech Connect (OSTI)

Co-injection of oxygen, a significant component in CO2 streams produced by the oxyfuel combustion process, can cause a significant alteration of the redox state in deep geologic formations during geologic carbon sequestration. The potential impact of co-injected oxygen on the interaction between synthetic CO2-brine (0.1 M NaCl) and shale caprock (Gothic shale from the Aneth Unit in Utah) and mobilization of trace metals was investigated at ~10 MPa and ~75 °C. A range of relative volume percentages of O2 to CO2 (0, 1, 4 and 8%) were used in these experiments to address the effect of oxygen on shale-CO2-brine interaction under various conditions. Major mineral phases in Gothic shale are quartz, calcite, dolomite, montmorillonite, and pyrite. During Gothic shale-CO2-brine interaction in the presence of oxygen, pyrite oxidation occurred extensively and caused enhanced dissolution of calcite and dolomite. Pyrite oxidation and calcite dissolution subsequently resulted in the precipitation of Fe(III) oxides and gypsum (CaSO4•2H2O). In the presence of oxygen, dissolved Mn and Ni were elevated because of oxidative dissolution of pyrite. The mobility of dissolved Ba was controlled by barite (BaSO4) precipitation in the presence of oxygen. Dissolved U in the experimental brines increased to ~8–14 ?g/L, with concentrations being slightly higher in the absence of oxygen than in the presence of oxygen. Experimental and modeling results indicate the interaction between shale caprock and oxygen co-injected with CO2 during geologic carbon sequestration can exert significant impacts on brine pH, solubility of carbonate minerals, stability of sulfide minerals, and mobility of trace metals. The major impact of oxygen is most likely to occur in the zone near CO2 injection wells where impurity gases can accumulate. Oxygen in CO2-brine migrating away from the injection well will be continually consumed through the reactions with sulfide minerals in deep geologic formations.

Jung, Hun Bok; Um, Wooyong; Cantrell, Kirk J.

2013-09-16T23:59:59.000Z

49

TWO-DIMENSIONAL REACTIVE TRANSPORT MODELING OF CO2 INJECTION IN A SALINE AQUIFER AT THE SLEIPNER SITE  

E-Print Network [OSTI]

systems are under consideration for CO2 storage in the subsurface (Holloway, 1997), (i) depleted oil or gas reservoirs, (ii) unmineable coal beds and (iii) saline aquifers. Deep saline aquifers offer) dissolution trapping, which represents CO2 dissolved in the liquid phase (oil or brine), and (iii) mineral

Boyer, Edmond

50

Three-phase compositional modeling of CO2 injection by higher-order finite element methods with CPA equation  

E-Print Network [OSTI]

and gravitational fingering that can negatively affect hydrocarbon (HC) recovery, or aid carbon sequestration and other simulators. The examples consider gravitational fingering during CO2 sequestration in aquifers could have a significant impact on CO2 sequestration and IOR. Accurate simulation of compositional

Firoozabadi, Abbas

51

Constitutional Implications of Regional CO2 Cap-and-Trade Programs: The Northeast Regional Greenhouse Gas Initiative as a Case in Point  

E-Print Network [OSTI]

on the purchase of out-of- RGGI electricity generating CO 2CONSTITUTIONAL IMPLICATIONS OF RGGI "(i) to study state andGas Initiative, About RGGI, http://www.rggi. org/about (last

Funk, William

2009-01-01T23:59:59.000Z

52

Uncertainty quantification for CO2 sequestration and enhanced oil recovery  

E-Print Network [OSTI]

This study develops a statistical method to perform uncertainty quantification for understanding CO2 storage potential within an enhanced oil recovery (EOR) environment at the Farnsworth Unit of the Anadarko Basin in northern Texas. A set of geostatistical-based Monte Carlo simulations of CO2-oil-water flow and reactive transport in the Morrow formation are conducted for global sensitivity and statistical analysis of the major uncertainty metrics: net CO2 injection, cumulative oil production, cumulative gas (CH4) production, and net water injection. A global sensitivity and response surface analysis indicates that reservoir permeability, porosity, and thickness are the major intrinsic reservoir parameters that control net CO2 injection/storage and oil/gas recovery rates. The well spacing and the initial water saturation also have large impact on the oil/gas recovery rates. Further, this study has revealed key insights into the potential behavior and the operational parameters of CO2 sequestration at CO2-EOR s...

Dai, Zhenxue; Fessenden-Rahn, Julianna; Middleton, Richard; Pan, Feng; Jia, Wei; Lee, Si-Yong; McPherson, Brian; Ampomah, William; Grigg, Reid

2014-01-01T23:59:59.000Z

53

DOE Regional Partner Initiates CO2 Injection Study in Virginia | Department  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Deliciouscritical_materials_workshop_presentations.pdf MoreProgram |DOEInfrastructureEnergyRecordsof Energy

54

DOE Regional Partnership Initiates CO2 Injection in Lignite Coal Seam |  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Deliciouscritical_materials_workshop_presentations.pdf MoreProgram |DOEInfrastructureEnergyRecordsofDepartment of

55

Carbon Sequestration Partner Initiates Drilling of CO2 Injection Well in  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 20154:04-21-2014 (866) 448 -Illinois Basin | Department of

56

Initiation of long, free-standing Z-discharges by CO2 laser gas heating  

SciTech Connect (OSTI)

High current discharge channels can neutralize both current and space charge of very intense ion beams. Therefore they are considered as an interesting alternative for the final focus and beam transport in a heavy ion beam fusion reactor. At the GSI accelerator facility, 50 cm long, stable, free-standing discharge channels with currents in excess of 40 kA in 2 to 25 mbar ammonia (NH{sub 3}) gas are investigated for heavy ion beam transport studies. The discharges are initiated by a CO{sub 2} laser pulse along the channel axis before the discharge is triggered. Resonant absorption of the laser, tuned to the {nu}{sub 2} vibration of the ammonia molecule, causes strong gas heating. Subsequent expansion and rarefaction of the gas prepare the conditions for a stable discharge to fulfill the requirements for ion beam transport. This paper describes the laser-gas interaction and the discharge initiation mechanism. We report on the channel stability and evolution, measured by fast shutter and streak imaging techniques. The rarefaction of the laser heated gas is studied by means of a hydrocode simulation.

Nieman, C.; Tauschwitz, A.; Penache, D.; Neff, S.; Knobloch, R.; Birkner, R.; Presura, R.; Hoffmann, D.H.H.; Yu, S.S.; Sharp, W.M.

2004-04-19T23:59:59.000Z

57

The effects of gas-fluid-rock interactions on CO2 injection and storage: Insights from reactive transport modeling  

SciTech Connect (OSTI)

Possible means of reducing atmospheric CO{sub 2} emissions include injecting CO{sub 2} in petroleum reservoirs for Enhanced Oil Recovery or storing CO{sub 2} in deep saline aquifers. Large-scale injection of CO{sub 2} into subsurface reservoirs would induce a complex interplay of multiphase flow, capillary trapping, dissolution, diffusion, convection, and chemical reactions that may have significant impacts on both short-term injection performance and long-term fate of CO{sub 2} storage. Reactive Transport Modeling is a promising approach that can be used to predict the spatial and temporal evolution of injected CO{sub 2} and associated gas-fluid-rock interactions. This presentation will summarize recent advances in reactive transport modeling of CO{sub 2} storage and review key technical issues on (1) the short- and long-term behavior of injected CO{sub 2} in geological formations; (2) the role of reservoir mineral heterogeneity on injection performance and storage security; (3) the effect of gas mixtures (e.g., H{sub 2}S and SO{sub 2}) on CO{sub 2} storage; and (4) the physical and chemical processes during potential leakage of CO{sub 2} from the primary storage reservoir. Simulation results suggest that CO{sub 2} trapping capacity, rate, and impact on reservoir rocks depend on primary mineral composition and injecting gas mixtures. For example, models predict that the injection of CO{sub 2} alone or co-injection with H{sub 2}S in both sandstone and carbonate reservoirs lead to acidified zones and mineral dissolution adjacent to the injection well, and carbonate precipitation and mineral trapping away from the well. Co-injection of CO{sub 2} with H{sub 2}S and in particular with SO{sub 2} causes greater formation alteration and complex sulfur mineral (alunite, anhydrite, and pyrite) trapping, sometimes at a much faster rate than previously thought. The results from Reactive Transport Modeling provide valuable insights for analyzing and assessing the dynamic behaviors of injected CO{sub 2}, identifying and characterizing potential storage sites, and managing injection performance and reducing costs.

Xiao, Y.; Xu, T.; Pruess, K.

2008-10-15T23:59:59.000Z

58

A Comparative Review of Hydrologic Issues Involved in Geologic Storage of CO2 and Injection Disposal of Liquid Waste  

SciTech Connect (OSTI)

The paper presents a comparison of hydrologic issues and technical approaches used in deep-well injection and disposal of liquid wastes, and those issues and approaches associated with injection and storage of CO{sub 2} in deep brine formations. These comparisons have been discussed in nine areas: (1) Injection well integrity; (2) Abandoned well problems; (3) Buoyancy effects; (4) Multiphase flow effects; (5) Heterogeneity and flow channeling; (6) Multilayer isolation effects; (7) Caprock effectiveness and hydrogeomechanics; (8) Site characterization and monitoring; and (9) Effects of CO{sub 2} storage on groundwater resources There are considerable similarities, as well as significant differences. Scientifically and technically, these two fields can learn much from each other. The discussions presented in this paper should help to focus on the key scientific issues facing deep injection of fluids. A substantial but by no means exhaustive reference list has been provided for further studies into the subject.

Tsang, C.-F.; Birkholzer, J.; Rutqvist, J.

2008-04-15T23:59:59.000Z

59

Injection of CO2 with H2S and SO2 and Subsequent Mineral Trapping in Sandstone-Shale Formation  

SciTech Connect (OSTI)

Carbon dioxide (CO{sub 2}) injection into deep geologic formations can potentially reduce atmospheric emissions of greenhouse gases. Sequestering less-pure CO{sub 2} waste streams (containing H{sub 2}S and/or SO{sub 2}) would be less expensive or would require less energy than separating CO{sub 2} from flue gas or a coal gasification process. The long-term interaction of these injected acid gases with shale-confining layers of a sandstone injection zone has not been well investigated. We therefore have developed a conceptual model of injection of CO{sub 2} with H{sub 2}S and/or SO{sub 2} into a sandstone-shale sequence, using hydrogeologic properties and mineral compositions commonly encountered in Gulf Coast sediments of the United States. We have performed numerical simulations of a 1-D radial well region considering sandstone alone and a 2-D model using a sandstone-shale sequence under acid-gas injection conditions. Results indicate that shale plays a limited role in mineral alteration and sequestration of gases within a sandstone horizon for short time periods (10,000 years in present simulations). The co-injection of SO{sub 2} results in different pH distribution, mineral alteration patterns, and CO{sub 2} mineral sequestration than the co-injection of H{sub 2}S or injection of CO{sub 2} alone. Simulations generate a zonal distribution of mineral alteration and formation of carbon and sulfur trapping minerals that depends on the pH distribution. The co-injection of SO{sub 2} results in a larger and stronger acidified zone close to the well. Precipitation of carbon trapping minerals occurs within the higher pH regions beyond the acidified zones. In contrast, sulfur trapping minerals are stable at low pH ranges (below 5) within the front of the acidified zone. Corrosion and well abandonment due to the co-injection of SO{sub 2} could be important issues. Significant CO{sub 2} is sequestered in ankerite and dawsonite, and some in siderite. The CO{sub 2} mineral-trapping capability can reach 80 kg per cubic meter of medium. Most sulfur is trapped through alunite precipitation, although some is trapped by anhydrite precipitation and minor amount of pyrite. The addition of the acid gases and induced mineral alteration result in changes in porosity. The limited information currently available on the mineralogy of natural high-pressure acid-gas reservoirs is generally consistent with our simulations.

Xu, Tianfu; Apps, John A.; Pruess, Karsten; Yamamoto, Hajime

2004-09-07T23:59:59.000Z

60

Simulation of CO2 Sequestration at Rock Spring Uplift, Wyoming: Heterogeneity and Uncertainties in Storage Capacity, Injectivity and Leakage  

SciTech Connect (OSTI)

Many geological, geochemical, geomechanical and hydrogeological factors control CO{sub 2} storage in subsurface. Among them heterogeneity in saline aquifer can seriously influence design of injection wells, CO{sub 2} injection rate, CO{sub 2} plume migration, storage capacity, and potential leakage and risk assessment. This study applies indicator geostatistics, transition probability and Markov chain model at the Rock Springs Uplift, Wyoming generating facies-based heterogeneous fields for porosity and permeability in target saline aquifer (Pennsylvanian Weber sandstone) and surrounding rocks (Phosphoria, Madison and cap-rock Chugwater). A multiphase flow simulator FEHM is then used to model injection of CO{sub 2} into the target saline aquifer involving field-scale heterogeneity. The results reveal that (1) CO{sub 2} injection rates in different injection wells significantly change with local permeability distributions; (2) brine production rates in different pumping wells are also significantly impacted by the spatial heterogeneity in permeability; (3) liquid pressure evolution during and after CO{sub 2} injection in saline aquifer varies greatly for different realizations of random permeability fields, and this has potential important effects on hydraulic fracturing of the reservoir rock, reactivation of pre-existing faults and the integrity of the cap-rock; (4) CO{sub 2} storage capacity estimate for Rock Springs Uplift is 6614 {+-} 256 Mt at 95% confidence interval, which is about 36% of previous estimate based on homogeneous and isotropic storage formation; (5) density profiles show that the density of injected CO{sub 2} below 3 km is close to that of the ambient brine with given geothermal gradient and brine concentration, which indicates CO{sub 2} plume can sink to the deep before reaching thermal equilibrium with brine. Finally, we present uncertainty analysis of CO{sub 2} leakage into overlying formations due to heterogeneity in both the target saline aquifer and surrounding formations. This uncertainty in leakage will be used to feed into risk assessment modeling.

Deng, Hailin [Los Alamos National Laboratory; Dai, Zhenxue [Los Alamos National Laboratory; Jiao, Zunsheng [Wyoming State Geological Survey; Stauffer, Philip H. [Los Alamos National Laboratory; Surdam, Ronald C. [Wyoming State Geological Survey

2011-01-01T23:59:59.000Z

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61

Coupled reservoir-geomechanical analysis of the potential for tensile and shear failure associated with CO2 injection in multilayered reservoir-caprock systems  

E-Print Network [OSTI]

a geological CO 2 storage system and to study methods forof the multilayered CO 2 storage system. Figure 2. Simulatedof the multilayered CO 2 storage system. GROUND SURFACE Pre-

Rutqvist, J.; Birkholzer, J.T.; Tsang, C.-F.

2008-01-01T23:59:59.000Z

62

EGS rock reactions with Supercritical CO2 saturated with water and water saturated with Supercritical CO2  

SciTech Connect (OSTI)

EGS using CO2 as a working fluid will likely involve hydro-shearing low-permeability hot rock reservoirs with a water solution. After that process, the fractures will be flushed with CO2 that is maintained under supercritical conditions (> 70 bars). Much of the injected water in the main fracture will be flushed out with the initial CO2 injection; however side fractures, micro fractures, and the lower portion of the fracture will contain connate water that will interact with the rock and the injected CO2. Dissolution/precipitation reactions in the resulting scCO2/brine/rock systems have the potential to significantly alter reservoir permeability, so it is important to understand where these precipitates form and how are they related to the evolving ‘free’ connate water in the system. To examine dissolution / precipitation behavior in such systems over time, we have conducted non-stirred batch experiments in the laboratory with pure minerals, sandstone, and basalt coupons with brine solution spiked with MnCl2 and scCO2. The coupons are exposed to liquid water saturated with scCO2 and extend above the water surface allowing the upper portion of the coupons to be exposed to scCO2 saturated with water. The coupons were subsequently analyzed using SEM to determine the location of reactions in both in and out of the liquid water. Results of these will be summarized with regard to significance for EGS with CO2 as a working fluid.

Earl D. Mattson; Travis L. McLing; William Smith; Carl Palmer

2013-02-01T23:59:59.000Z

63

Modeling of fate and transport of co-injection of H2S with CO2 in deep saline formations  

SciTech Connect (OSTI)

The geological storage of CO{sub 2} in deep saline formations is increasing seen as a viable strategy to reduce the release of greenhouse gases into the atmosphere. However, costs of capture and compression of CO{sub 2} from industrial waste streams containing small quantities of sulfur and nitrogen compounds such as SO{sub 2}, H{sub 2}S and N{sub 2} are very expensive. Therefore, studies on the co-injection of CO{sub 2} containing other acid gases from industrial emissions are very important. In this paper, numerical simulations were performed to study the co-injection of H{sub 2}S with CO{sub 2} in sandstone and carbonate formations. Results indicate that the preferential dissolution of H{sub 2}S gas (compared with CO{sub 2} gas) into formation water results in the delayed breakthrough of H{sub 2}S gas. Co-injection of H{sub 2}S results in the precipitation of pyrite through interactions between the dissolved H{sub 2}S and Fe{sup 2+} from the dissolution of Fe-bearing minerals. Additional injection of H{sub 2}S reduces the capabilities for solubility and mineral trappings of CO{sub 2} compared to the CO{sub 2} only case. In comparison to the sandstone (siliciclastic) formation, the carbonate formation is less favorable to the mineral sequestration of CO{sub 2}. Different from CO{sub 2} mineral trapping, the presence of Fe-bearing siliciclastic and/or carbonate is more favorable to the H{sub 2}S mineral trapping.

Zhang, W.; Xu, T.; Li, Y.

2010-12-15T23:59:59.000Z

64

Modeling the resolution of inexpensive, novel non-seismic geophysical monitoring tools to monitor CO2 injection into coal beds  

SciTech Connect (OSTI)

A sensitivity study of gravity and electromagnetic (EM) techniques, and amplitude vs. angle (AVA) analysis for CO{sub 2} movement in coal beds was based on the SECARB pilot test planned in the Black Warrior basin in Alabama. In the area of interest, coalbed methane is produced mainly from the Black Creek, Mary Lee, and Pratt coal zones at depths between 400 and 700 m and approximately 3 m thick on average. The permeability of coal in the Black Warrior basin decreases exponentially with depth as overburden stress increases. The permeability of the top layer is 100 mD, while the permeability of the deepest layer is around 1 mD. The pilot field test will include injecting a total of 1000 tons of CO{sub 2} into these three coal zones ({approx}300 tons to each zone). The density, sonic and resistivity well-logs from a deep disposal well a couple of miles from the pilot test site were used to create background (pre-injection) models. Our laboratory measurements of seismic velocity and electrical resistivity as a function of CO{sub 2} saturation on coal core samples were used to provide a link between the coalbed CO{sub 2} flow simulation models and the geophysical models. The sensitivity studies showed that while the response to the 300 tons of CO{sub 2} injected into a single layer wouldn't produce measurable surface response for either gravity or EM, the response due to an industrial-size injection would produce measurable surface signal for both techniques. Gravity inversion results illustrated that, provided we can collect high-quality gravity data in the field and we have some a priori information about the depth of the reservoir, we can recover the spatial location of CO{sub 2} plume correctly, although with the smoothing constraint of the inversion, the area was slightly overestimated, resulting in an underestimated value of density change. AVA analysis showed that by inverting seismic and EM data jointly, much better estimates of CO{sub 2} saturation can be obtained, especially in the third injection zone, where seismic AVA data fail to detect the high CO{sub 2} saturation. Analysis of spatial resolution and detectability limits show that gravity and EM measurements could, under certain circumstances, be used as a lower-cost alternative to seismic measurements.

Gasperikova, E.; Hoversten, G.M.

2008-09-01T23:59:59.000Z

65

Modeling Coal Matrix Shrinkage and Differential Swelling with CO2 Injection for Enhanced Coalbed Methane Recovery and Carbon Sequestration Applications  

SciTech Connect (OSTI)

Matrix shrinkage and swelling can cause profound changes in porosity and permeability of coalbed methane reservoirs during depletion or when under CO{sub 2} injection processes, with significant implication for primary or enhanced methane recovery. Two models that are used to describe these effects are discussed. The first was developed by Advanced Resources International (ARI) and published in 1990 by Sawyer, et al. The second model was published by Palmer and Mansoori in 1996. This paper shows that the two provide equivalent results for most applications. However, their differences in formulation cause each to have relative advantages and disadvantages under certain circumstances. Specifically, the former appears superior for undersaturated coalbed methane reservoirs while the latter would be better if a case is found where matrix swelling is strongly disproportional to gas concentration. Since its presentation in 1996, the Palmer and Mansoori model has justifiably received much critical praise. However, the model developed by ARI for the COMET reservoir simulation program has been in use since 1990, and has significant advantages in certain settings. A review of data published by Levine in 1996 reveals that carbon dioxide causes a greater degree of coal matrix swelling compared to methane, even when measured on a unit of concentration basis. This effect is described in this report as differential swelling. Differential swelling may have important consequences for enhanced coalbed methane and carbon sequestration projects. To handle the effects of differential swelling, an extension to the matrix shrinkage and swelling model used by the COMET simulator is presented and shown to replicate the data of Levine. Preliminary field results from a carbon dioxide injection project are also presented in support of the extended model. The field evidence supports that considerable changes to coal permeability occur with CO{sub 2} injection, with significant implication for the design, implementation and performance of enhanced coalbed methane recovery and CO{sub 2} sequestration projects.

L. J. Pekot; S. R. Reeves

2002-03-31T23:59:59.000Z

66

4-D High-Resolution Seismic Reflection Monitoring of Miscible CO2 Injected into a Carbonate Reservoir  

SciTech Connect (OSTI)

The objective of this research project was to acquire, process, and interpret multiple high-resolution 3-D compressional wave and 2-D, 2-C shear wave seismic data in the hopes of observing changes in fluid characteristics in an oil field before, during, and after the miscible carbon dioxide (CO{sub 2}) flood that began around December 1, 2003, as part of the DOE-sponsored Class Revisit Project (DOE No.DE-AC26-00BC15124). Unique and key to this imaging activity is the high-resolution nature of the seismic data, minimal deployment design, and the temporal sampling throughout the flood. The 900-m-deep test reservoir is located in central Kansas oomoldic limestones of the Lansing-Kansas City Group, deposited on a shallow marine shelf in Pennsylvanian time. After 30 months of seismic monitoring, one baseline and eight monitor surveys clearly detected changes that appear consistent with movement of CO{sub 2} as modeled with fluid simulators and observed in production data. Attribute analysis was a very useful tool in enhancing changes in seismic character present, but difficult to interpret on time amplitude slices. Lessons learned from and tools/techniques developed during this project will allow high-resolution seismic imaging to be routinely applied to many CO{sub 2} injection programs in a large percentage of shallow carbonate oil fields in the midcontinent.

Richard D. Miller; Abdelmoneam E. Raef; Alan P. Byrnes; William E. Harrison

2007-06-30T23:59:59.000Z

67

CO2 leakage through existing wells: current technology and regulations S. Taku Ide1  

E-Print Network [OSTI]

for the most likely features, events and processes that affect well integrity after initial CO2 injection. As long as the #12;integrity of the cap rock is not compromised by permeable conduits like wellsCO2 leakage through existing wells: current technology and regulations S. Taku Ide1 , S. Julio

68

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

CONSTRAIN CO2 INJECTION FEASIBILITY: TEAPOT DOME EOR PILOTEOR, and coupled process modeling will investigate the total system including preliminary estimates of CO2

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

69

numerical methodology to model and monitor co2 sequestration  

E-Print Network [OSTI]

CO2 sequestration is a means of mitigating the greenhouse effect [1]. Geologic sequestration involves injecting CO2 into a target geologic formation at depths ...

santos,,,

70

Numerical modeling of injection and mineral trapping of CO2 withH2S and SO2 in a Sandstone Formation  

SciTech Connect (OSTI)

Carbon dioxide (CO{sub 2}) injection into deep geologic formations could decrease the atmospheric accumulation of this gas from anthropogenic sources. Furthermore, by co-injecting H{sub 2}S or SO{sub 2}, the products respectively of coal gasification or combustion, with captured CO{sub 2}, problems associated with surface disposal would be mitigated. We developed models that simulate the co-injection of H{sub 2}S or SO{sub 2} with CO{sub 2} into an arkose formation at a depth of about 2 km and 75 C. The hydrogeology and mineralogy of the injected formation are typical of those encountered in Gulf Coast aquifers of the United States. Six numerical simulations of a simplified 1-D radial region surrounding the injection well were performed. The injection of CO{sub 2} alone or co-injection with SO{sub 2} or H{sub 2}S results in a concentrically zoned distribution of secondary minerals surrounding a leached and acidified region adjacent to the injection well. Co-injection of SO{sub 2} with CO{sub 2} results in a larger and more strongly acidified zone, and alteration differs substantially from that caused by the co-injection of H{sub 2}S or injection of CO{sub 2} alone. Precipitation of carbonates occurs within a higher pH (pH > 5) peripheral zone. Significant quantities of CO{sub 2} are sequestered by ankerite, dawsonite, and lesser siderite. The CO{sub 2} mineral-trapping capacity of the formation can attain 40-50 kg/m{sup 3} medium for the selected arkose. In contrast, secondary sulfates precipitate at lower pH (pH < 5) within the acidified zone. Most of the injected SO{sub 2} is transformed and immobilized through alunite precipitation with lesser amounts of anhydrite and minor quantities of pyrite. The dissolved CO{sub 2} increases with time (enhanced solubility trapping). The mineral alteration induced by injection of CO{sub 2} with either SO{sub 2} or H{sub 2}S leads to corresponding changes in porosity. Significant increases in porosity occur in the acidified zones where mineral dissolution dominates. With co-injection of SO{sub 2}, the porosity increases from an initial 0.3 to 0.43 after 100 years. However, within the CO{sub 2} mineral-trapping zone, the porosity decreases to about 0.28 for both cases, because of the addition of CO{sub 2} mass as secondary carbonates to the rock matrix. Precipitation of sulfates at the acidification front causes porosity to decrease to 0.23. The limited information currently available on the mineralogy of naturally occurring high-pressure CO{sub 2} reservoirs is generally consistent with our simulations.

Xu, Tianfu; Apps, John A.; Pruess, Karsten; Yamamoto, Hajime

2004-09-07T23:59:59.000Z

71

Changes in the chemistry of shallow groundwater related to the 2008 injection of CO2 at the ZERT field site, Bozeman, Montana  

E-Print Network [OSTI]

including BTEX from depleted oil reservoirs and non oil-of CO 2 in a depleted oil reservoir, New Mexico. USA Appl

2010-01-01T23:59:59.000Z

72

Changes in the chemistry of shallow groundwater related to the 2008 injection of CO2 at the ZERT Field Site, Bozeman, Montana  

E-Print Network [OSTI]

including BTEX from depleted oil reservoirs and non oil-of CO 2 in a depleted oil reservoir, New Mexico, USA Applied

Kharaka, Y.K.

2010-01-01T23:59:59.000Z

73

System-level modeling for geological storage of CO2  

E-Print Network [OSTI]

of Geologic Storage of CO2, in Carbon Dioxide Capture forFormations - Results from the CO2 Capture Project: GeologicBenson, Process Modeling of CO2 Injection into Natural Gas

Zhang, Yingqi; Oldenburg, Curtis M.; Finsterle, Stefan; Bodvarsson, Gudmundur S.

2006-01-01T23:59:59.000Z

74

Design and Implementation of a CO2 Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells In a Shallow Shelf Carbonate Approaching Waterflood Depletion, Class II  

SciTech Connect (OSTI)

The principle objective of this project is to demonstrate the economic viability and widespread applicability of an innovative reservoir management and carbon dioxide (CO2) flood project development approach for improving CO2 flood project economics in shallow shelf carbonate (SSC) reservoirs.

Czirr, K.L.; Gaddis, M.P.; Moshell, M.K.

2002-02-21T23:59:59.000Z

75

Study of CO2 Mobility Control in Heterogeneous Media Using CO2 Thickening Agents  

E-Print Network [OSTI]

CO2 injection is an effective method for performing enhanced oil recovery (EOR). There are several factors that make CO2 useful for EOR, including promoting swelling, reducing oil viscosity, decreasing oil density, and vaporizing and extracting...

Al Yousef, Zuhair

2012-10-19T23:59:59.000Z

76

The Rosetta Resources CO2 Storage Project - A WESTCARB Geologic Pilot Test  

E-Print Network [OSTI]

of enhanced oil recovery (EOR) using injected CO 2 to driveof enhanced oil recovery (EOR) using injected CO 2 to swell

2006-01-01T23:59:59.000Z

77

Near Miscible CO2 Application to Improve Oil Recovery  

E-Print Network [OSTI]

Carbon dioxide (CO2) injection for enhanced oil recovery is a proven technology. CO2 injection is normally operated at a pressure above the minimum miscibility pressure (MMP), which is determined by crude oil composition and reservoir conditions...

Bui, Ly H.

2010-07-26T23:59:59.000Z

78

A model comparison initiative for a CO2 injection field test: An introduction to Sim-SEQ  

E-Print Network [OSTI]

Energy's Regional Carbon Sequestration Partnerships Programimplications for carbon sequestration, Environmental Earthtrapping for geologic carbon sequestration, International

Mukhopadhyay, S.

2013-01-01T23:59:59.000Z

79

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

E-Print Network [OSTI]

CO 2 saturation at the Weyburn CO 2 EOR injection project inMonitoring CO 2 storage during EOR at the Weyburn-Midalean excellent example of a CO 2 EOR (enhanced oil recovery)

Lumley, D.

2010-01-01T23:59:59.000Z

80

A Review of Hazardous Chemical Species Associated with CO2 Capturefrom Coal-Fired Power Plants and Their Potential Fate in CO2 GeologicStorage  

SciTech Connect (OSTI)

Conventional coal-burning power plants are major contributors of excess CO2 to the atmospheric inventory. Because such plants are stationary, they are particularly amenable to CO2 capture and disposal by deep injection into confined geologic formations. However, the energy penalty for CO2 separation and compression is steep, and could lead to a 30-40 percent reduction in useable power output. Integrated gas combined cycle (IGCC) plants are thermodynamically more efficient, i.e.,produce less CO2 for a given power output, and are more suitable for CO2 capture. Therefore, if CO2 capture and deep subsurface disposal were to be considered seriously, the preferred approach would be to build replacement IGCC plants with integrated CO2 capture, rather than retrofit existing conventional plants. Coal contains minor quantities of sulfur and nitrogen compounds, which are of concern, as their release into the atmosphere leads to the formation of urban ozone and acid rain, the destruction of stratospheric ozone, and global warming. Coal also contains many trace elements that are potentially hazardous to human health and the environment. During CO2 separation and capture, these constituents could inadvertently contaminate the separated CO2 and be co-injected. The concentrations and speciation of the co-injected contaminants would differ markedly, depending on whether CO2 is captured during the operation of a conventional or an IGCC plant, and the specific nature of the plant design and CO2 separation technology. However, regardless of plant design or separation procedures, most of the hazardous constituents effectively partition into the solid waste residue. This would lead to an approximately two order of magnitude reduction in contaminant concentration compared with that present in the coal. Potential exceptions are Hg in conventional plants, and Hg and possibly Cd, Mo and Pb in IGCC plants. CO2 capture and injection disposal could afford an opportunity to deliberately capture environmental pollutants in the gaseous state and co-inject them with the CO2, in order to mitigate problems associated with solid waste disposal in surface impoundments. Under such conditions, the injected pollutant concentrations could be roughly equivalent to their concentrations in the coal feed. The fate of the injected contaminants can only be determined through further testing and geochemical modeling. However, the concentrations of inadvertent contaminants in the injected CO2 would probably be comparable to their ambient concentrations in confining shales of the injection zone. In general, the aqueous concentrations of hazardous constituents in distal parts of the injection zone, regardless of source, are likely to be limited by equilibrium with respect to coexisting solid phases under the acid conditions induced by the dissolved high pressure CO2, rather than by the initial concentrations of injected contaminants. Therefore, even if a deliberate policy of contaminant recovery and injection were to be pursued, water quality in USDWs would more likely depend on thermodynamic controls governing aqueous contaminant concentrations in the presence of high pressure CO2 rather than in the injected CO2. The conclusions reached in this report are preliminary, and should be confirmed through more comprehensive data evaluation and supporting geochemical modeling.

Apps, J.A.

2006-02-23T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

Design and Implementation of a CO(2) Flood Utilizing Advanced Reservoir Characterization and Horizontal Injection Wells in Shallow Shelf Carbonate Approaching Waterflood Depletion  

SciTech Connect (OSTI)

The work reported herein covers select tasks in Budget Phase 11. The principle Task in Budget Phase 11 included in this report is Field Demonstration. Completion of many of the Field Demonstration tasks during the last report period enabled an optimum carbon dioxide (CO{sub 2}) flood project to be designed, economically evaluated, and implemented in the field. Field implementation of the project commenced during late 1995, with actual C0{sub 2} injection commencing in mid-July, 1996. This report summarizes activities incurred following initial project start-up, towards the goal of optimizing project performance. The current project has focused on reducing initial investment cost by utilizing horizontal injection wells and concentrating the project in the best productivity area of the field. An innovative C0{sub 2} purchase agreement (no take-or-pay provisions, C0{sub 2} purchase price tied to West Texas Intermediate (WTI) crude oil price) and gas recycle agreement (expensing costs as opposed to a large upfront capital investment for compression) were negotiated to further improve the project economics. The Grayburg-San Andres section had previously been divided into multiple zones based on the core study and gamma ray markers that correlate wells within the Unit. Each zone was mapped as continuous across the field. Previous core studies concluded that the reservoir quality in the South Cowden Unit (SCU) is controlled primarily by the distribution of a bioturbated and diagenetically-altered rock type with a distinctive chaotic texture. The chaotic modifier is derived from the visual effect of pervasive, small-scale intermixing of tan oil-stained reservoir rock with tight gray non- reservoir rock. The chaotic reservoir rock extends from Zone C (4780`-4800`) to the lower part of Zone F (4640`-4680`). Zones D (4755`-4780`) and E (4680`-4755`) are considered the main floodable zones, though Zone F is also productive and Zone C is productive above the oil- water contact. During Budget Phase 1, the Stratamodel computer program was utilized as the primary tool to integrate the diverse geologic, petrophysical, and seismic data into a coherent three dimensional (3-D) model. The basic porosity model having been constructed, critiqued and modified based on field production and detailed cross-section displays, permeability data was imported into the model, and a 3-D interpolation of the permeability was completed.

NONE

1997-12-31T23:59:59.000Z

82

Development of a Stochastic Inversion Tool To Optimize Agreement Between The Observed And Predicted Seismic Response To CO2 Injection/Migration in the Weyburn-Midale Project  

SciTech Connect (OSTI)

During Phase 1 of the Weyburn Project (2000-2004), 4D reflection seismic data were used to map CO{sub 2} migration within the Midale reservoir, while an extensive fluid sampling program documented the geochemical evolution triggered by CO{sub 2}-brine-oil-mineral interactions. The aim of this task (3b.11) is to exploit these existing seismic and geochemical data sets, augmented by CO{sub 2}/H{sub 2}O injection and HC/H{sub 2}O production data toward optimizing the reservoir model and thereby improving site characterization and dependent predictions of long-term CO{sub 2} storage in the Weyburn-Midale reservoir. Our initial project activities have concentrated on developing a stochastic inversion method that will identify reservoir models that optimize agreement between the observed and predicted seismic response. This report describes the technical approach we have followed, the data that supports it, and associated implementation activities. The report fulfills deliverable D1 in the project's statement of work. Future deliverables will describe the development of the stochastic inversion tool that uses geochemical data to optimize the reservoir model.

Ramirez, A L; Hao, Y; White, D; Carle, S; Dyer, K; Yang, X; Mcnab, W; Foxall, W; Johnson, J

2009-12-02T23:59:59.000Z

83

CO2 sequestration | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CO2 sequestration CO2 sequestration Leads No leads are available at this time. Low-Temperature Carbon Monoxide Oxidation Catalysed by Regenerable Atomically Dispersed Palladium on...

84

CO2 Sequestration Modeling Using Pattern Recognition and Data Mining;  

E-Print Network [OSTI]

carbon dioxide (CO2) sequestration process is to ensure a sustained confinement of the injected CO2CO2 Sequestration Modeling Using Pattern Recognition and Data Mining; Case Study of SACROC field, USA Abstract Capturing carbon dioxide (CO2) from industrial and energy-related sources and depositing

Mohaghegh, Shahab

85

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

157 WELL INTEGRITY IN CO 2 ENVIRONMENTS: PERFORMANCE, RISK,of CO 2 injection, wells integrity and long term behavior ofcan compromise the well integrity and thus its functional

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

86

Summary Report on CO2 Geologic Sequestration & Water Resources Workshop  

E-Print Network [OSTI]

2 exposure in both CO 2 -EOR and natural CO 2 reservoirs (as enhanced oil recovery (EOR) and enhanced gas recovery (2 field injections for CCS-EOR, where the water quality of

Varadharajan, C.

2013-01-01T23:59:59.000Z

87

Carbon storage: the economic efficiency of storing CO2 in leaky reservoirs  

E-Print Network [OSTI]

industry routinely injects CO2 underground to enhance oil recovery (CO2-EOR). A bit more than two thousand kilometers of CO2 pipelines have been laid in Texas to provide for CO2- EOR. In these operations the goal must pay for the CO2. Yet at the end of an EOR operation a major fraction of CO2 purchased remains

Paris-Sud XI, Université de

88

Reactive transport modeling to study changes in water chemistry induced by CO2 injection at the Frio-I brine pilot  

SciTech Connect (OSTI)

To demonstrate the potential for geologic storage of CO{sub 2} in saline aquifers, the Frio-I Brine Pilot was conducted, during which 1600 tons of CO{sub 2} were injected into a high-permeability sandstone and the resulting subsurface plume of CO{sub 2} was monitored using a variety of hydrogeological, geophysical, and geochemical techniques. Fluid samples were obtained before CO{sub 2} injection for baseline geochemical characterization, during the CO{sub 2} injection to track its breakthrough at a nearby observation well, and after injection to investigate changes in fluid composition and potential leakage into an overlying zone. Following CO{sub 2} breakthrough at the observation well, brine samples showed sharp drops in pH, pronounced increases in HCO{sub 3}{sup -} and aqueous Fe, and significant shifts in the isotopic compositions of H{sub 2}O and dissolved inorganic carbon. Based on a calibrated 1-D radial flow model, reactive transport modeling was performed for the Frio-I Brine Pilot. A simple kinetic model of Fe release from the solid to aqueous phase was developed, which can reproduce the observed increases in aqueous Fe concentration. Brine samples collected after half a year had lower Fe concentrations due to carbonate precipitation, and this trend can be also captured by our modeling. The paper provides a method for estimating potential mobile Fe inventory, and its bounding concentration in the storage formation from limited observation data. Long-term simulations show that the CO{sub 2} plume gradually spreads outward due to capillary forces, and the gas saturation gradually decreases due to its dissolution and precipitation of carbonates. The gas phase is predicted to disappear after 500 years. Elevated aqueous CO{sub 2} concentrations remain for a longer time, but eventually decrease due to carbonate precipitation. For the Frio-I Brine Pilot, all injected CO{sub 2} could ultimately be sequestered as carbonate minerals.

Kharaka, Y.K; Doughty, C.; Freifeld, B.M.; Daley, T.M.; Xu, T.

2009-11-01T23:59:59.000Z

89

DESIGN AND IMPLEMENTATION OF A CO2 FLOOD UTILIZING ADVANCED RESERVOIR CHARACTERIZATION AND HORIZONTAL INJECTION WELLS IN A SHALLOW SHELF CARBONATE APPROACHING WATERFLOOD DEPLETION  

SciTech Connect (OSTI)

The purpose of this project was to economically design an optimum carbon dioxide (CO{sub 2}) flood for a mature waterflood nearing its economic abandonment. The original project utilized advanced reservoir characterization and CO{sub 2} horizontal injection wells as the primary methods to redevelop the South Cowden Unit (SCU). The development plans; project implementation and reservoir management techniques were to be transferred to the public domain to assist in preventing premature abandonment of similar fields. The Unit was a mature waterflood with water cut exceeding 95%. Oil must be mobilized through the use of a miscible or near-miscible fluid to recover significant additional reserves. Also, because the unit was relatively small, it did not have the benefit of economies of scale inherent in normal larger scale projects. Thus, new and innovative methods were required to reduce investment and operating costs. Two primary methods used to accomplish improved economics were use of reservoir characterization to restrict the flood to the higher quality rock in the unit and use of horizontal injection wells to cut investment and operating costs. The project consisted of two budget phases. Budget Phase I started in June 1994 and ended late June 1996. In this phase Reservoir Analysis, Characterization Tasks and Advanced Technology Definition Tasks were completed. Completion enabled the project to be designed, evaluated, and an Authority for Expenditure (AFE) for project implementation submitted to working interest owners for approval. Budget Phase II consisted of the implementation and execution of the project in the field. Phase II was completed in July 2001. Performance monitoring, during Phase II, by mid 1998 identified the majority of producing wells which under performed their anticipated withdrawal rates. Newly drilled and re-activated wells had lower offtake rates than originally forecasted. As a result of poor offtake, higher reservoir pressure was a concern for the project as it limited CO{sub 2} injectivity. To reduce voidage balance, and reservoir pressure, a disposal well was therefore drilled. Several injection surveys indicated the CO{sub 2} injection wells had severe conformance issues. After close monitoring of the project to the end of 1999, it was evident the project would not recover the anticipated tertiary reserves. The main reasons for under-performance were poor in zone CO{sub 2} injection into the upper San Andres layers, poorer offtake rates from newly drilled replacement wells and a higher than required reservoir pressure. After discussion internally within Phillips, externally with the Department of Energy (DOE) and SCU partners, a redevelopment of South Cowden was agreed upon to commence in year 2000. The redevelopment essentially abandoned the original development for Budget Phase II in favor of a revised approach. This involved conformance techniques to resolve out of zone CO{sub 2} injection and use of horizontal wells to improve in zone injectivity and productivity. A phased approach was used to ensure short radius lateral drilling could be implemented effectively at South Cowden. This involved monitoring drilling operations and then production response to determine if larger investments during the second phase were justified. Redevelopment Phase 1 was completed in May 2000. It was deemed a success in regard to finding suitable/cost-effective technology for drilling horizontal laterals and finding a technique that could sustain long-term productivity from the upper layers of the San Andres reservoir. Four existing vertical producing wells were isolated from their existing completions and sidetracked with horizontal laterals into the upper layers of the San Andres. Overall average offtake rates for the four wells increased by a factor of 12 during the first four months after completion of Phase 1. Phase 2 of the redevelopment focused on current CO{sub 2} vertical injection wells. Techniques were applied to resolve near well conformance concerns and then either single or dual laterals were dril

K.J. Harpole; Ed G. Durrett; Susan Snow; J.S. Bles; Carlon Robertson; C.D. Caldwell; D.J. Harms; R.L. King; B.A. Baldwin; D. Wegener; M. Navarrette

2002-09-01T23:59:59.000Z

90

CO2 flood tests on whole core samples of the Mt. Simon sandstone, Illinois Basin  

SciTech Connect (OSTI)

Geological sequestration of CO2, whether by enhanced oil recovery (EOR), coal-bed methane (CBM) recovery, or saline aquifer injection is a promising near-term sequestration methodology. While tremendous experience exists for EOR, and CBM recovery has been demonstrated in existing fields, saline aquifer injection studies have only recently been initiated. Studies evaluating the availability of saline aquifers suitable for CO2 injection show great potential, however, the long-term fate of the CO2 injected into these ancient aqueous systems is still uncertain. For the subject study, a series of laboratory-scale CO2 flood tests were conducted on whole core samples of the Mt. Simon sandstone from the Illinois Basin. By conducting these tests on whole core samples rather than crushed core, an evaluation of the impact of the CO2 flood on the rock mechanics properties as well as the geochemistry of the core and brine solution has been possible. This empirical data could provide a valuable resource for the validation of reservoir models under development for these engineered CO2 systems.

O'Connor, William K.; Rush, Gilbert E.

2005-09-01T23:59:59.000Z

91

Coupled reservoir-geomechanical analysis of the potential for tensile and shear failure associated with CO2 injection in multilayered reservoir-caprock systems  

E-Print Network [OSTI]

of high potential for hydraulic fracturing is also indicatedpressure for hydraulic fracturing at initial conditions (margins for onset of hydraulic fracturing (P fm ) and shear

Rutqvist, J.; Birkholzer, J.T.; Tsang, C.-F.

2008-01-01T23:59:59.000Z

92

Exploratory study of some potential environmental impacts of CO2 sequestration in unmineable coal seams  

SciTech Connect (OSTI)

An initial investigation into the potential environmental impacts of CO2 sequestration in unmineable coal seams has been conducted, focusing on changes in the produced water during enhanced coalbed methane (ECBM) production, using a CO2 injection process (CO2-ECBM). A high volatile bituminous coal, Pittsburgh No. 8, was reacted with synthetic produced water and gaseous carbon dioxide at 40°C and 50 bar to evaluate the potential for mobilisation of toxic metals during CO2-ECBM/sequestration. Microscopic and X-ray diffraction analysis of the post-reaction coal samples clearly show evidence of chemical reaction and chemical analysis of the synthetic produced water shows substantial changes in composition. These results suggest that changes to the produced water chemistry and the potential for mobilising toxic trace elements from coal beds are important factors to be considered when evaluating deep, unmineable coal seams for CO2 sequestration.

Hedges, S.W.; Soong, Y.; Jones, R.J.; Harrison, D.K.; Irdi, G.A.; Frommell, E.A.; Dilmore, R.M.; White, C.M.

2007-01-01T23:59:59.000Z

93

EA-1886: Big Sky Regional Carbon Sequestration Partnership- Phase III: Large Volume CO2 Injection-Site Characterization, Well Drilling, and Infrastructure Development, Injection, MVA, and Site Closure, Kevin Dome, Toole County, Montana  

Broader source: Energy.gov [DOE]

This EA will evaluate the environmental impacts of a proposal for the Big Sky Carbon Sequestration Regional Partnership to demonstrate the viability and safety of CO2 storage in a regionally significant subsurface formation in Toole County, Montana and to promote the commercialization of future anthropogenic carbon storage in this region.

94

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

EOR) and enhanced coalbed methane recovery (ECBMR) becauseand potential for coalbed methane. The Mannville coals areCO 2 injectivity and coalbed methane producibility. Thus,

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

95

CO2 Sequestration in Unmineable Coal Seams: Potential Environmental Impacts  

SciTech Connect (OSTI)

An initial investigation into the potential environmental impacts of CO2 sequestration in unmineable coal seams has been conducted, focusing on changes in the produced water during enhanced coalbed methane (ECBM) production using a CO2 injection process (CO2-ECBM). Two coals have been used in this study, the medium volatile bituminous Upper Freeport coal (APCS 1) of the Argonne Premium Coal Samples series, and an as-mined Pittsburgh #8 coal, which is a high volatile bituminous coal. Coal samples were reacted with either synthetic produced water or field collected produced water and gaseous carbon dioxide at 40 ?C and 50 bar to evaluate the potential for mobilizing toxic metals during CO2-ECBM/sequestration. Microscopic and x-ray diffraction analysis of the post-reaction coal samples clearly show evidence of chemical reaction, and chemical analysis of the produced water shows substantial changes in composition. These results suggest that changes to the produced water chemistry and the potential for mobilizing toxic trace elements from coalbeds are important factors to be considered when evaluating deep, unmineable coal seams for CO2 sequestration.

Hedges, S.W.; Soong, Yee; McCarthy Jones, J.R.; Harrison, D.K.; Irdi, G.A.; Frommell, E.A.; Dilmore, R.M.; Pique, P.J.; Brown, T.D

2005-09-01T23:59:59.000Z

96

DOI: 10.1002/cssc.201000032 The Immobility of CO2 in Marine Sediments Beneath 1500  

E-Print Network [OSTI]

to capture CO2 produced at indus- trial facilities and approaches to inject the CO2 into geologic of buoyant CO2 in terrestrial reservoirs that often contain fractures, faults, and abandoned wells and may

Schrag, Daniel

97

Investigation of feasibility of injecting power plant waste gases for enhanced coalbed methane recovery from low rank coals in Texas  

E-Print Network [OSTI]

such as power plants. CO2 emissions can be offset by sequestration of produced CO2 in natural reservoirs such as coal seams, which may initially contain methane. Production of coalbed methane can be enhanced through CO2 injection, providing an opportunity...

Saugier, Luke Duncan

2004-09-30T23:59:59.000Z

98

EMSL - CO2 sequestration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

co2-sequestration en Low-Temperature Carbon Monoxide Oxidation Catalysed by Regenerable Atomically Dispersed Palladium on Alumina. http:www.emsl.pnl.govemslwebpublications...

99

Spatio-temporal changes in CO2 emissions during the second ZERT...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Spatio-temporal changes in CO2 emissions during the second ZERT injection, August-September 2008. Spatio-temporal changes in CO2 emissions during the second ZERT injection,...

100

Mulitdimensional reactive transport modeling of CO2 minreal sequestration in basalts at the Helllisheidi geothermal field, Iceland  

E-Print Network [OSTI]

geothermal power plant. In simulations of the pilot CO 2simulation of a 10 year full-scale CO 2 injection from Hellisheidi power plant. (

Aradottir, E.S.P.

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

Co2 geological sequestration  

SciTech Connect (OSTI)

Human activities are increasingly altering the Earth's climate. A particular concern is that atmospheric concentrations of carbon dioxide (CO{sub 2}) may be rising fast because of increased industrialization. CO{sub 2} is a so-called ''greenhouse gas'' that traps infrared radiation and may contribute to global warming. Scientists project that greenhouse gases such as CO{sub 2} will make the arctic warmer, which would melt glaciers and raise sea levels. Evidence suggests that climate change may already have begun to affect ecosystems and wildlife around the world. Some animal species are moving from one habitat to another to adapt to warmer temperatures. Future warming is likely to exceed the ability of many species to migrate or adjust. Human production of CO{sub 2} from fossil fuels (such as at coal-fired power plants) is not likely to slow down soon. It is urgent to find somewhere besides the atmosphere to put these increased levels of CO{sub 2}. Sequestration in the ocean and in soils and forests are possibilities, but another option, sequestration in geological formations, may also be an important solution. Such formations could include depleted oil and gas reservoirs, unmineable coal seams, and deep saline aquifers. In many cases, injection of CO2 into a geological formation can enhance the recovery of hydrocarbons, providing value-added byproducts that can offset the cost of CO{sub 2} capture and sequestration. Before CO{sub 2} gas can be sequestered from power plants and other point sources, it must be captured. CO{sub 2} is also routinely separated and captured as a by-product from industrial processes such as synthetic ammonia production, H{sub 2} production, and limestone calcination. Then CO{sub 2} must be compressed into liquid form and transported to the geological sequestration site. Many power plants and other large emitters of CO{sub 2} are located near geological formations that are amenable to CO{sub 2} sequestration.

Xu, Tianfu

2004-11-18T23:59:59.000Z

102

High Resolution Simulation and Characterization of Density-Driven Flow in CO2 Storage in Saline Aquifers  

E-Print Network [OSTI]

are routinely used to study the process of carbon dioxide (CO2) sequestration in saline aquifers. In this paper TOUGH2-MP. 1. Introduction Geologic carbon dioxide (CO2) sequestration involves injecting CO2

103

Exsolution Enhanced Oil Recovery with Concurrent CO2 Sequestration  

SciTech Connect (OSTI)

A novel EOR method using carbonated water injection followed by depressurization is introduced. Results from micromodel experiments are presented to demonstrate the fundamental principles of this oil recovery method. A depressurization process (1 MPa/hr) was applied to a micromodel following carbonated water injection (Ca ? 10-5). The exsolved CO2 in water-filled pores blocked water flow in swiped portions and displaced water into oil-filled pores. Trapped oil after the carbonated water injection was mobilized by sequentially invading water. This method's self-distributed mobility control and local clogging was tested in a sandstone sample under reservoir conditions. A 10% incremental oil recovery was achieved by lowering the pressure 2 MPa below the CO2 liberation pressure. Additionally, exsolved CO2 resides in the pores of a reservoir as an immobile phase with a high residual saturation after oil production, exhibiting a potential synergy opportunity between CO2 EOR and CO2 sequestration

Zuo, Lin; Benson, Sally M.

2013-01-01T23:59:59.000Z

104

amine methanol, ether . Amine amine CO2  

E-Print Network [OSTI]

, . promoter . 1.2 CO2 HBGS process CO2 , CO2 . CO2 , IGCC (Integrated Gasification Combined Cycle) (fuel gas) CO2 . IGCC CO2 H2 . (gasification) CO H2 (water gas shift reaction) H2 CO CO2 . CO2 H2 turbine H2 . H2 , CO2 #12;. fuel gas CO2 40%, 60% H2 . fuel gas (gasification) HBGS process . CO2 CO2 . venture

Hong, Deog Ki

105

CO2-Driven Enhanced Gas Recovery and Storage in Depleted Shale Reservoir-A Numerical Simulation Study  

E-Print Network [OSTI]

injection into saline aquifer, CO2-EOR, CO2-ECBM, and so forth, have been studied to minimize the CO22-EOR, CO2-ECBM, and so forth, have been studied to minimize the CO2 release into the atmosphere1 CO2-Driven Enhanced Gas Recovery and Storage in Depleted Shale Reservoir- A Numerical Simulation

Mohaghegh, Shahab

106

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

carbon dioxide-enhanced oil recovery project as a prototypeCO 2 injection for enhanced oil recovery. Indeed, most near-as well as Enhanced Oil Recovery projects. REFERENCES

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

107

Improving CO2 Efficiency for Recovering Oil in Heterogeneous Reservoirs  

SciTech Connect (OSTI)

The work strived to improve industry understanding of CO2 flooding mechanisms with the ultimate goal of economically recovering more of the U.S. oil reserves. The principle interests are in the related fields of mobility control and injectivity.

Grigg, Reid B.; Svec, Robert K.

2003-03-10T23:59:59.000Z

108

CO2 interaction with aquifer and seal on geological timescales: the Miller oilfield, UK North Sea   

E-Print Network [OSTI]

Carbon Capture and Storage (CCS) has been identified as a feasible technology to reduce CO2 emissions whilst permitting the continued use of fossil fuels. Injected CO2 must remain efficiently isolated from the atmosphere ...

Lu, Jiemin

2008-01-01T23:59:59.000Z

109

Influence of Rock Types on Seismic Monitoring of CO2 Sequestration in Carbonate Reservoirs  

E-Print Network [OSTI]

) techniques such as high pressure CO2 injection may normally be required to recover oil in place in carbonate reservoirs. This study addresses how different rock types can influence the seismic monitoring of CO2 sequestration in carbonates. This research...

Mammadova, Elnara

2012-10-19T23:59:59.000Z

110

Comparative Assessment of Status and Opportunities for CO2 Capture and Storage and Radioactive Waste Disposal in North America  

E-Print Network [OSTI]

coal-fired power plants will require multiple injection wells Pipeline as liquid CO 2 , injection through wells Liquid or supercritical

Oldenburg, C.

2010-01-01T23:59:59.000Z

111

Constraining the density of CO2 within the Utsira formation using time-lapse gravity measurements  

E-Print Network [OSTI]

the Sleipner CO2 injection site in 2002 and 2005 on top of 30 concrete benchmarks on the seafloor in order is typically vented into the atmosphere, but at Sleipner the CO2 is compressed and injected into a porous and the water depth is about 80 m. Injection began in 1996 at a gradually increasing rate. Now, about 1 million

Nooner, Scott

112

Well Technologies for CO2 Geological Storage: CO2-Resistant Cement  

E-Print Network [OSTI]

Résumé — Technologies de puits pour le stockage géologique du CO2: ciment résistant au CO2 — Le stockage souterrain du CO2 est actuellement considéré comme la voie la plus efficace pour une séquestration sure et à faible coût. Cette nouvelle application exige une étanchéité du puits à très long terme. La rupture de la gaine de ciment dans l’intervalle entre le cuvelage et la formation géologique peut créer des chemins préférentiels favorisant la fuite du CO2 vers la surface avec des vitesses probablement supérieures à celles pouvant être provoquées par les fuites au travers des formations géologiques. Il en résultera une perte économique, une réduction de l’efficacité du stockage de CO2 et la remise en cause du champ pour le stockage de CO2. Ce risque potentiel de fuites soulève des questions quant à la bonne iso-lation du puits à long terme et à la durabilité du ciment hydraté utilisé pour isoler l’annulaire entre les intervalles de production et d’injection dans les puits de CO2. Nous proposons une nouvelle procédure expérimentale et une méthodologie pour étudier la réactivité des systèmes CO2-Eau-Ciment en simulant les interactions du ciment pris avec le CO2 injecté à l’état supercritique dans des conditions de fond de puits. Les conditions utilisées pour ces expériences sont de 90ºC et 280 bars. L’évolution des propriétés mécaniques et physico-chimiques du ciment Portland est mesurée dans le temps sur une période maxi-male de six mois. Les résultats sont comparés à ceux obtenus par une étude similaire sur un nouveau

V. Barlet-gouédard; G. Rimmelé; B. Goffé; O. Porcherie

113

CO2 displacement mechanisms: phase equilibria effects and carbon dioxide sequestration studies.  

E-Print Network [OSTI]

??Supercritical carbon dioxide is injected into underground formations to enhance oil recovery and for subsurface sequestration to minimize the impact of CO2 emissions due to… (more)

Pasala, Sangeetha M.

2010-01-01T23:59:59.000Z

114

Carbon storage: the economic efficiency of storing CO2 in leaky reservoirs Minh Ha-Duong, David W. Keith  

E-Print Network [OSTI]

: The upstream oil and gas industry routinely injects CO2 underground to enhance oil recovery (CO2- EOR). A bit more than 2,000 km of CO2 pipelines have been laid in Texas to provide for CO2-EOR. In these operations-used, since operators must pay for the CO2. Yet at the end of an EOR operation a major fraction of CO2

Paris-Sud XI, Université de

115

Hydrological and geochemical monitoring for a CO2 sequestration pilot in a brine formation  

SciTech Connect (OSTI)

Hydrological and geochemical monitoring are key components of site characterization and CO2 plume monitoring for a pilot test to inject CO2 into a brine-bearing sand of the fluvial-deltaic Frio formation in the upper Texas Gulf Coast. In situ, injected CO2 forms a supercritical phase that has gas-like properties (low density and viscosity) compared to the surrounding brine, while some CO2 dissolves in the brine. The pilot test employs one injection well and one monitor well, with continuous pressure and flow-rate monitoring in both wells, and continuous surface fluid sampling and periodic down-hole fluid sampling from the monitor well. Pre-injection site-characterization includes pump tests with pressure-transient analysis to estimate single-phase flow properties, establish hydraulic connectivity between the wells, determine appropriate boundary conditions, and analyze ambient phase conditions within the formation. Additionally, a pre-injection tracer test furnishes estimates of kinematic porosity and the geometry of flow paths between injection and monitor wells under single-phase conditions. Pre-injection geochemical sampling provides a baseline for subsequent geochemical monitoring and helps determine the optimal tracers to accompany CO2 injection. During CO2 injection, hydrological monitoring enables estimation of two-phase flow properties and helps track the movement of the injected CO2 plume, while geochemical sampling provides direct evidence of the arrival of CO2 and tracers at the monitor well. Furthermore, CO2-charged water acts as a weak acid, and reacts to some extent with the minerals in the aquifer, producing a distinct chemical signature in the water collected at the monitor well. Comparison of breakthrough curves for the single-phase tracer test and the CO2 (and its accompanying tracers) illuminates two-phase flow processes between the supercritical CO2 and native brine, an area of current uncertainty that must be better understood to effectively sequester CO2 in saline aquifers.

Doughty, Christine; Pruess, Karsten; Benson, Sally M.; Freifeld, Barry M.; Gunter, William D.

2004-05-17T23:59:59.000Z

116

Potential for CO2 Sequestration and Enhanced Coalbed Methane Production, Blue Creek Field, NW Black Warrior Basin, Alabama  

E-Print Network [OSTI]

Carbon dioxide (CO2) is a primary source of greenhouse gases. Injection of CO2 from power plants near coalbed reservoirs is a win-win method to reducing emissions of CO2 to the atmosphere. Limited studies have investigated CO2 sequestration...

He, Ting

2011-02-22T23:59:59.000Z

117

ADJOINT BASED OPTIMAL CONTROL OF PARTIALLY MISCIBLE TWO-PHASE FLOW IN POROUS MEDIA WITH APPLICATIONS TO CO2  

E-Print Network [OSTI]

WITH APPLICATIONS TO CO2 SEQUESTRATION IN UNDERGROUND RESERVOIRS MORITZ SIMON AND MICHAEL ULBRICH Abstract. With the target of optimizing CO2 sequestration in underground reservoirs, we investigate constrained optimal the amount of trapped CO2 in an underground reservoir after a fixed period of CO2 injection, while time

Ulbrich, Michael

118

ENVIRONMENTAL ASSESSMENT OF GEOLOGIC STORAGE OF CO2 Jason J. Heinrich, Howard J. Herzog, David M. Reiner  

E-Print Network [OSTI]

analogs: acid gas injection (AGI), enhanced oil recovery (EOR), natural gas storage, and CO2 transportENVIRONMENTAL ASSESSMENT OF GEOLOGIC STORAGE OF CO2 * Jason J. Heinrich, Howard J. Herzog, David M of reducing CO2 emissions. The storage of CO2 in underground geologic reservoirs is one such idea that employs

119

An Introduction to CO2 Separation and Capture Technologies Howard Herzog  

E-Print Network [OSTI]

recovery (EOR) operations where CO2 is injected into oil reservoirs to increase the mobility of the oil andAn Introduction to CO2 Separation and Capture Technologies Howard Herzog MIT Energy Laboratory August, 1999 In general, to economically sequester CO2 produced from power plants, one must first produce

120

Geologic controls influencing CO2 loss from a leaking well.  

SciTech Connect (OSTI)

Injection of CO2 into formations containing brine is proposed as a long-term sequestration solution. A significant obstacle to sequestration performance is the presence of existing wells providing a transport pathway out of the sequestration formation. To understand how heterogeneity impacts the leakage rate, we employ two dimensional models of the CO2 injection process into a sandstone aquifer with shale inclusions to examine the parameters controlling release through an existing well. This scenario is modeled as a constant-rate injection of super-critical CO2 into the existing formation where buoyancy effects, relative permeabilities, and capillary pressures are employed. Three geologic controls are considered: stratigraphic dip angle, shale inclusion size and shale fraction. In this study, we examine the impact of heterogeneity on the amount and timing of CO2 released through a leaky well. Sensitivity analysis is performed to classify how various geologic controls influence CO2 loss. A 'Design of Experiments' approach is used to identify the most important parameters and combinations of parameters to control CO2 migration while making efficient use of a limited number of computations. Results are used to construct a low-dimensional description of the transport scenario. The goal of this exploration is to develop a small set of parametric descriptors that can be generalized to similar scenarios. Results of this work will allow for estimation of the amount of CO2 that will be lost for a given scenario prior to commencing injection. Additionally, two-dimensional and three-dimensional simulations are compared to quantify the influence that surrounding geologic media has on the CO2 leakage rate.

Hopkins, Polly L.; Martinez, Mario J.; McKenna, Sean Andrew; Klise, Katherine A.

2010-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

CO2 Sequestration short course  

SciTech Connect (OSTI)

Given the public’s interest and concern over the impact of atmospheric greenhouse gases (GHGs) on global warming and related climate change patterns, the course is a timely discussion of the underlying geochemical and mineralogical processes associated with gas-water-mineral-interactions encountered during geological sequestration of CO2. The geochemical and mineralogical processes encountered in the subsurface during storage of CO2 will play an important role in facilitating the isolation of anthropogenic CO2 in the subsurface for thousands of years, thus moderating rapid increases in concentrations of atmospheric CO2 and mitigating global warming. Successful implementation of a variety of geological sequestration scenarios will be dependent on our ability to accurately predict, monitor and verify the behavior of CO2 in the subsurface. The course was proposed to and accepted by the Mineralogical Society of America (MSA) and The Geochemical Society (GS).

DePaolo, Donald J. [Lawrence Berkeley National Laboratory; Cole, David R [The Ohio State University; Navrotsky, Alexandra [University of California-Davis; Bourg, Ian C [Lawrence Berkeley National Laboratory

2014-12-08T23:59:59.000Z

122

CO2 Compression | netl.doe.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone6Energy, science, andAnalysis15 CNMS Userpulse injectionCO2

123

Continuous CO2 extractor and methods  

SciTech Connect (OSTI)

The purpose of this CRADA was to assist in technology transfer from Russia to the US and assist in development of the technology improvements and applications for use in the U.S. and worldwide. Over the period of this work, ORNL has facilitated design, development and demonstration of a low-pressure liquid extractor and development of initial design for high-pressure supercritical CO2 fluid extractor.

None listed

2010-06-15T23:59:59.000Z

124

Implementation of the El Mar (Delaware) Unit CO2 flood  

SciTech Connect (OSTI)

Union Royalty, Inc., Amoco Production Company, and Enron Liquids Pipeline Company recently announced that they have commenced operations of an innovative enhanced oil recovery project at the El Mar (Delaware) Unit in Loving County, Texas, about 100 miles west of Midland, Texas. The project will convert the unit`s existing oil recovery system from a secondary (waterflood) system to a tertiary (CO2 flood) system designed to use carbon dioxide and water to increase crude oil production from the unit. What makes this EOR project unique is the creative deal structured by the partners involved. Amoco, Union Royalty, and Enron have worked out an unprecedented arrangement whereby Amoco essentially trades CO2 for an interest in Union Royalty`s future oil production from the unit. By pioneering this innovative deal new production life has been restored to a field that otherwise might dry up. Enron is participating in the project by transporting CO2 to the unit via a 40-mile expansion of its Central Basin Pipeline system from the Dollarhide oil field in Andrews county, Texas. The project will be implemented in four phases. The first phase in operation today comprises seven CO2 injection wells which have begun to process the reservoir with CO2. Plans now call for more CO2 injectors to be installed during the next three to five years until a total of 65 CO2 injectors and an on-site CO2 compression facility serve the unit`s 70 production wells.

McKnight, T.N. Jr. [Union Royalty, Inc., Midland, TX (United States); Merchant, D.L.

1995-12-31T23:59:59.000Z

125

Capturing CO2 from Air Anca Timofte  

E-Print Network [OSTI]

Capturing CO2 from Air Anca Timofte Climeworks AG Birchstrasse 155, 8050 Zürich www.climeworks.com, contact@climeworks.com Carbon Mitigation Lecture, 27 October 2014 #12;Air Climeworks CO2 capture plant CO2-free air Pure CO2 #12;3 Climeworks Products Demonstrator · 1 ton CO2 per year · Online since 12

Fischlin, Andreas

126

Effect of flue gas impurities on the process of injection and storage of carbon dioxide in depleted gas reservoirs  

E-Print Network [OSTI]

, corefloods were conducted at 1,500 psig and 70??C, in which flue gas was injected into an Austin chalk core containing initially methane. Two types of flue gases were injected: dehydrated flue gas with 13.574 mole% CO2 (Gas A), and treated flue gas (N2, O2...

Nogueira de Mago, Marjorie Carolina

2005-11-01T23:59:59.000Z

127

Dewetting of silica surfaces upon reactions with supercritical CO2 and brine: Pore-scale studies in micromodels  

E-Print Network [OSTI]

CO 2 injected into depleted oil reservoirs may have faster2 sequestration in depleted oil and gas reservoirs - caprocksaline aquifers, depleted oil and gas reservoirs, unmineable

Kim, Y.

2013-01-01T23:59:59.000Z

128

Surface CO2 leakage during the first shallow subsurface CO2 release experiment  

E-Print Network [OSTI]

numbered 0-6. Plots of F CO2 measured along the surface wellin Figure 2. Figure 2. Log F CO2 maps for measurements madeof soil CO 2 flux (F CO2 ). The surface leakage onset,

Lewicki, J.L.; Oldenburg, C.; Dobeck, L.; Spangler, L.

2008-01-01T23:59:59.000Z

129

Initial Results in Power System Identification from Injected Probing Signals Using a Subspace Method  

SciTech Connect (OSTI)

In this paper, the authors use the Numerical algorithm for Subspace State Space System IDentification (N4SID) to extract dynamic parameters from phasor measurements collected on the western North American Power Grid. The data were obtained during tests on June 7, 2000, and they represent wide area response to several kinds of probing signals including Low-Level Pseudo-Random Noise (LLPRN) and Single-Mode Square Wave (SMSW) injected at the Celilo terminal of the Pacific HVDC In-tertie (PDCI). An identified model is validated using a cross vali-dation method. Also, the obtained electromechanical modes are compared with the results from Prony analysis of a ringdown and with signal analysis of ambient data measured under similar op-erating conditions. The consistent results show that methods in this class can be highly effective even when the probing signal is small.

Zhou, Ning; Pierre, John W.; Hauer, John F.

2006-08-01T23:59:59.000Z

130

Predicting CO2-water interfacial tension under pressure and temperature conditions of geologic CO2 storage  

E-Print Network [OSTI]

E EPM2- TIP4P2005 PPL- TIP4P2005 Predicted (f) a P ? CO2 2SE? CO2 2SE? CO2 2SE ? CO2 2SE ? CO2 2SE ? CO2 2SE a Surface excess CO

Nielsen, L.C.

2013-01-01T23:59:59.000Z

131

Weeks Island gravity stable CO2 pilot: Final report  

SciTech Connect (OSTI)

The Weeks Island ''S'' sand Reservoir B (''S'' RB) gravity-stable CO2 field test was completed during February 1988. Injection started in October 1978 and production began in January 1981 in this high-permeability, steeply-dipping sandstone reservoir. About 264,000 barrels of oil or 65 percent of the starting volume has been recovered. A 24-percent pore-volume slug of CO2 mixed with about six mole percent of natural gas (mostly methane) was injected at the start of the pilot. Since 1983, produced CO2 plus hydrocarbon gases have been recycled. CO2 usage statistics are 9.34 MCF/BO with recycle and 3.24 MCF/BO based on purchased CO2. Previous annual reports document the pilot design, implementation, and early results for the 1977 to June 1981 time period. This report is a review of early pilot history and a more detailed account of the post June 1981 results and overall interpretation. A reservoir-simulation history match of pilot performance plus core and log data from a 1983 swept-zone evaluation well are described in this report. A brief description of the production facility and an account of the corrosion control program are also included. 11 refs., 34 figs.

Johnston, J.R.; Perry, G.E.

1989-01-01T23:59:59.000Z

132

MODELING OF CO2 LEAKAGE UP THROUGH AN ABANDONED WELL FROM DEEP SALINE AQUIFER TO SHALLOW FRESH  

E-Print Network [OSTI]

1 MODELING OF CO2 LEAKAGE UP THROUGH AN ABANDONED WELL FROM DEEP SALINE AQUIFER TO SHALLOW FRESH restricted to: (i) supercritical CO2 injection and storage within the Dogger reservoir aquifer, (ii) CO2 the cement-rock formation interface in the abandoned well (iii) impacts on the Albian aquifer water quality

Paris-Sud XI, Université de

133

Assessment of Basin-Scale Hydrologic Impacts of CO2 Sequestration, Illinois Basin1 Mark Person*1  

E-Print Network [OSTI]

: Mount Simon, Illinois Basin, CO2, earthquakes, pressure, brine transport69 #12;Page | 3 1. IntroductionPage | 1 Assessment of Basin-Scale Hydrologic Impacts of CO2 Sequestration, Illinois Basin1 2 3 4 sharp-interface models of CO2 injection were constructed for the Illinois49 Basin in which porosity

Gable, Carl W.

134

8, 73737389, 2008 Scientists' CO2  

E-Print Network [OSTI]

ACPD 8, 7373­7389, 2008 Scientists' CO2 emissions A. Stohl Title Page Abstract Introduction substantial emissions of carbon dioxide (CO2). In this pa- per, the CO2 emissions of the employees working, the total annual per capita CO2 emissions are 4.5 t worldwide, 1.2 t for India, 3.8 t for China, 5

Paris-Sud XI, Université de

135

6, 1092910958, 2006 Regional scale CO2  

E-Print Network [OSTI]

ACPD 6, 10929­10958, 2006 Regional scale CO2 flux estimation using radon A. I. Hirsch Title Page Chemistry and Physics Discussions On using radon-222 and CO2 to calculate regional-scale CO2 fluxes A. I (Adam.Hirsch@noaa.gov) 10929 #12;ACPD 6, 10929­10958, 2006 Regional scale CO2 flux estimation using

Paris-Sud XI, Université de

136

Modeling long-term CO2 storage, sequestration and cycling  

SciTech Connect (OSTI)

The application of numerical and analytical models to the problem of storage, sequestration and migration of carbon dioxide in geologic formations is discussed. A review of numerical and analytical models that have been applied to CO2 sequestration are presented, as well as a description of frameworks for risk analysis. Application of models to various issues related to carbon sequestration are discussed, including trapping mechanisms, density convection mixing, impurities in the CO2 stream, changes in formation porosity and permeability, the risk of vertical leakage, and the impacts on groundwater resources if leakage does occur. A discussion of the development and application of site-specific models first addresses the estimation of model parameters and the use of natural analogues to inform the development of CO2 sequestration models, and then surveys modeling that has been done at two commercial-scale CO2 sequestration sites, Sleipner and In Salah, along with a pilot-scale injection sites used to study CO2 sequestration in saline aquifers (Frio) and an experimental site designed to test monitoring of CO2 leakage in the vadose zone (ZERT Release Facility).

Bacon, Diana H.

2013-11-11T23:59:59.000Z

137

Short communication Satellite-derived surface water pCO2 and airsea CO2 fluxes  

E-Print Network [OSTI]

Short communication Satellite-derived surface water pCO2 and air­sea CO2 fluxes in the northern for the estimation of the partial pressure of carbon dioxide (pCO2) and air­sea CO2 fluxes in the northern South), respectively, the monthly pCO2 fields were computed. The derived pCO2 was compared with the shipboard pCO2

138

Potential method for measurement of CO2 leakage from underground sequestration fields using radioactive tracers  

SciTech Connect (OSTI)

Reduction of anthropogenic carbon dioxide (CO2) release to the environment is a pressing challenge that should be addressed to avert the potential devastating effects of global warming. Within the United States, the most abundant sources of CO2 emissions are those generate from coal- or gas-fired power plants; one method to control CO2 emissions is to sequester it in deep underground geological formations. From integrated assessment models the overall leakage rates from these storage locations must be less than 0.1% of stored volume per year for long-term control. The ability to detect and characterize nascent leaks, in conjunction with subsequent remediation efforts, will significantly decrease the amount of CO2 released back into the environment. Because potential leakage pathways are not necessarily known a priori, onsite monitoring must be performed; the monitoring region in the vicinity of a CO2 injection well may be as large as 100 km2, which represents the estimated size of a supercritical CO2 bubble that would form under typical injection scenarios. By spiking the injected CO2 with a radiological or stable isotope tracer, it will be possible to detect ground leaks from the sequestered CO2 using fewer sampling stations, with greater accuracy than would be possible using simple CO2 sensors. The relative merits of various sorbent materials, radiological and stable isotope tracers, detection methods and potential interferences will be discussed.

Bachelor, Paula P.; McIntyre, Justin I.; Amonette, James E.; Hayes, James C.; Milbrath, Brian D.; Saripalli, Prasad

2008-07-01T23:59:59.000Z

139

EFFECTS OF CO2 LEAKAGES FROM STORAGE SITES ON THE QUALITY OF POTABLE GROUNDWATER  

E-Print Network [OSTI]

was packed into two fixed-bed PVC columns. In the one column, gas CO2 and water were co-injected while only gas effect due mainly to the combustion of fossil fuels and CO2 emissions in the atmosphere

140

MODELING AND CONTROL OF A O2/CO2 GAS TURBINE CYCLE FOR CO2 CAPTURE  

E-Print Network [OSTI]

MODELING AND CONTROL OF A O2/CO2 GAS TURBINE CYCLE FOR CO2 CAPTURE Lars Imsland Dagfinn Snarheim and control of a semi-closed O2/CO2 gas turbine cycle for CO2 capture. In the first part the process predictive control, Gas turbines, CO2 capture 1. INTRODUCTION Gas turbines are widely used for power

Foss, Bjarne A.

Note: This page contains sample records for the topic "initiates co2 injection" 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

Simulation assessment of CO2 sequestration potential and enhanced methane recovery in low-rank coalbeds of the Wilcox Group, east-central Texas  

E-Print Network [OSTI]

Carbon dioxide (CO2) from energy consumption is a primary source of greenhouse gases. Injection of CO2 from power plants in coalbed reservoirs is a plausible method for reducing atmospheric emissions, and it can have the additional benefit...

Hernandez Arciniegas, Gonzalo

2006-10-30T23:59:59.000Z

142

CO2 http://andrew.ucsd.edu/co2qc/ University of California, San Diego  

E-Print Network [OSTI]

cooled by liquid nitrogen. The water and CO2 are separated from one another by sublimation and the CO2 for oceanic CO2 analysis: A method for the certification of total alkalinity. Marine Chemistry 80, 185

143

Research project on CO2 geological storage and groundwaterresources: Large-scale hydrological evaluation and modeling of impact ongroundwater systems  

SciTech Connect (OSTI)

If carbon dioxide capture and storage (CCS) technologies areimplemented on a large scale, the amounts of CO2 injected and sequesteredunderground could be extremely large. The stored CO2 then replaces largevolumes of native brine, which can cause considerable pressureperturbation and brine migration in the deep saline formations. Ifhydraulically communicating, either directly via updipping formations orthrough interlayer pathways such as faults or imperfect seals, theseperturbations may impact shallow groundwater or even surface waterresources used for domestic or commercial water supply. Possibleenvironmental concerns include changes in pressure and water table,changes in discharge and recharge zones, as well as changes in waterquality. In compartmentalized formations, issues related to large-scalepressure buildup and brine displacement may also cause storage capacityproblems, because significant pressure buildup can be produced. Toaddress these issues, a three-year research project was initiated inOctober 2006, the first part of which is summarized in this annualreport.

Birkholzer, Jens; Zhou, Quanlin; Rutqvist, Jonny; Jordan,Preston; Zhang,K.; Tsang, Chin-Fu

2007-10-24T23:59:59.000Z

144

QGESS: CO2 Impurity Design Parameters  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

10. Shah, Minish. Capturing CO2 from Oxy-Fuel Combustion Flue Gas. Cottbus, Germany : Praxair Inc., 2005. 11. Spitznogle, Gary O. CO2 Impurity Specification at AEP Mountaineer....

145

ATMOSPHERIC CO2 A GLOBAL LIMITING RESOURCE  

E-Print Network [OSTI]

Carbondioxideatmosphericburden,PgC Land use Fossil CO2 from land use emissions ­ not fossil fuel combustion ­ was the dominant CO2 Comparison of CO2 mixing ratio from fossil fuel combustion and land use changes 400 380 360 340 cores 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Forcing,Wm -2 #12;ATMOSPHERIC CO2 EMISSIONS Time series 1700

Schwartz, Stephen E.

146

5, 33133340, 2005 SCIAMACHY CO2 and  

E-Print Network [OSTI]

ACPD 5, 3313­3340, 2005 SCIAMACHY CO2 and aerosols S. Houweling et al. Title Page Abstract Evidence of systematic errors in SCIAMACHY-observed CO2 due to aerosols S. Houweling 1,2 , W. Hartmann 1 Commons License. 3313 #12;ACPD 5, 3313­3340, 2005 SCIAMACHY CO2 and aerosols S. Houweling et al. Title

Paris-Sud XI, Université de

147

2, 711743, 2006 Glacial CO2  

E-Print Network [OSTI]

CPD 2, 711­743, 2006 Glacial CO2 sequestration L. C. Skinner Title Page Abstract Introduction CO2 change: a simple "hypsometric effect" on deep-ocean carbon sequestration? L. C. Skinner Godwin Scientist Award win- ners 2006 711 #12;CPD 2, 711­743, 2006 Glacial CO2 sequestration L. C. Skinner Title

Paris-Sud XI, Université de

148

CO2 Injection in the Subsurface Kjetil Haugen  

E-Print Network [OSTI]

of the global energy. The rate of increase is higher in countries like China and India where the economyEnergyConsumption(1015 BTU) Year Oil Coal Gas Hydro Nuclear Other Figure 1: World energy consumption by energy type be replaced by alternative, clean energy sources. However, this will not happen in the foreseeable future

Firoozabadi, Abbas

149

CO2 Injection in Kansas Oilfield Could Greatly Increase Production,  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchTheMarketing,Energy- Mixed HumidBingThis2, 2015SubpartJune 2012CNS

150

Samenvatting CO2 is het meest belangrijke broeikasgas. The concentratie van CO2 in de atmosfeer  

E-Print Network [OSTI]

Samenvatting CO2 is het meest belangrijke broeikasgas. The concentratie van CO2 in de atmosfeer brandstoffen en veranderingen in landgebruik. Toenemende concentraties van CO2 in de atmosfeer zullen naar toename van CO2 in de atmosfeer op de dynamiek van de microbiële gemeenschap in de directe omgeving van de

van den Brink, Jeroen

151

MAC-Kaust Project P1 CO2 Sequestration Modeling of CO2 sequestration including parameter  

E-Print Network [OSTI]

MAC-Kaust Project P1 ­ CO2 Sequestration Modeling of CO2 sequestration including parameter identification and numerical simulation M. Brokate, O. A. PykhteevHysteresis aspects of CO2 sequestration modeling K-H. Hoffmann, N. D. Botkin Objectives and methods of CO2 sequestration There is a popular belief

Turova, Varvara

152

Physical Constraints on Geologic CO2 Sequestration in Low-Volume Basalt Formations  

SciTech Connect (OSTI)

Deep basalt formations within large igneous provinces have been proposed as target reservoirs for carbon capture and sequestration on the basis of favorable CO2-water-rock reaction kinetics that suggest carbonate mineralization rates on the order of 102–103 d. Although these results are encouraging, there exists much uncertainty surrounding the influence of fracture-controlled reservoir heterogeneity on commercial-scale CO2 injections in basalt formations. This work investigates the physical response of a low-volume basalt reservoir to commercial-scale CO2 injections using a Monte Carlo numerical modeling experiment such that model variability is solely a function of spatially distributed reservoir heterogeneity. Fifty equally probable reservoirs are simulated using properties inferred from the deep eastern Snake River Plain aquifer in southeast Idaho, and CO2 injections are modeled within each reservoir for 20 yr at a constant mass rate of 21.6 kg s–1. Results from this work suggest that (1) formation injectivity is generally favorable, although injection pressures in excess of the fracture gradient were observed in 4% of the simulations; (2) for an extensional stress regime (as exists within the eastern Snake River Plain), shear failure is theoretically possible for optimally oriented fractures if Sh is less than or equal to 0.70SV; and (3) low-volume basalt reservoirs exhibit sufficient CO2 confinement potential over a 20 yr injection program to accommodate mineral trapping rates suggested in the literature.

Ryan M. Pollyea; Jerry P. Fairley; Robert K. Podgorney; Travis L. McLing

2014-03-01T23:59:59.000Z

153

Surface Ocean CO2 Atlas (SOCAT) gridded data products  

SciTech Connect (OSTI)

A well documented, publicly available, global data set for surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data from the global oceans and coastal seas, spanning four decades (1968 2007). The SOCAT gridded data is the second data product to come from the SOCAT project. Recognizing that some groups may have trouble working with millions of measurements, the SOCAT gridded product was generated to provide a robust regularly spaced fCO2 product with minimal spatial and temporal interpolation which should be easier to work with for many applications. Gridded SOCAT is rich with information that has not been fully explored yet, but also contains biases and limitations that the user needs to recognize and address.

Sabine, Christopher [NOAA Pacific Marine Environmental Laboratory; Hankin, S. [Pacific Northwest National Laboratory (PNNL); Koyuk, H [Joint Institute for the Study of the Atmosphere and Ocean, University of Washington; Bakker, D C E [School of Environmental Sciences, University of East Anglia, Norwich, UK; Pfeil, B [Geophysical Institute, University of Bergen; Uni Research AS, Bergen, Norway; Olsen, A [Bjerknes Centre for Climate Research, UNIFOB AS, Bergen, Norway; Metzl, N [Universite Pierre et Marie Curie, LOCEAN/IPSL, Paris, France; Kozyr, Alexander [ORNL; Fassbender, A [School of Oceanography, University of Washington, Seattle, WA; Manke, A [Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration; Malczyk, J [Jetz Laboratory, Department of Ecology and Evolutionary Biology, Yale University; Akl, J [CSIRO Wealth from Oceans Flagship, Hobart, Tasmania, Australia; Alin, S R [Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration; Bellerby, R G J [Geophysical Institute, University of Bergen, Bergen, Norway; Borges, A [University of Liege, Chemical Oceanography Unit, Institut de Physique, Liege, Belgium; Boutin, J [Universite Pierre et Marie Curie, LOCEAN/IPSL, Paris, France; Brown, P J [School of Environmental Sciences, University of East Anglia, Norwich, UK; Cai, W-J [Department of Marine Sciences, University of Georgia; Chavez, F P [Monterey Bay Aquarium Research Institute, Moss Landing, CA; Chen, A [Institute of Marine Geology and Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan; Cosa, C [Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration; Feely, R A [Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration; Gonzalez-Davila, M [Universidad de Las Palmas de Gran Canaria, Facultad de Ciencias del Mar, Las Palmas de Gran Canaria,; Goyet, C [Institut de Modélisation et d'Analyse en Géo-Environnement et Santé, Université de Perpignan; Hardman-Mountford, N [CSIRO, Marine and Atmospheric Research, Wembley, Western Australia, Australia; Heinze, C [Geophysical Institute, University of Bergen, Bergen, Norway; Hoppema, M [Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany; Hunt, C W [Ocean Process Analysis Lab, University of New Hampshire, Durham, New Hampshire; Hydes, D [National Oceanography Centre, Southampton, UK; Ishii, M [Japan Meteorological Agency, Meteorological Research Institute, Tsukuba, Japan; Johannessen, T [Geophysical Institute, University of Bergen, Bergen, Norway; Key, R M [Atmospheric and Oceanic Sciences, Princeton University, Princeton, New Jersey; Kortzinger, A [GEOMAR, Helmholtz Centre for Ocean Research, Kiel, Germany; Landschutzer, P [School of Environmental Sciences, University of East Anglia, Norwich, UK; Lauvset, S K [Geophysical Institute, University of Bergen, Bergen, Norway; Lefevre, N [Université Pierre et Marie Curie, LOCEAN/IPSL, Paris, France; Lenton, A [Centre for Australian Weather and Climate Research, Hobart, Tasmania, Australia; Lourantou, A [Université Pierre et Marie Curie, LOCEAN/IPSL, Paris, France; Merlivat, L [Université Pierre et Marie Curie, LOCEAN/IPSL, Paris, France; Midorikawa, T [Nagasaki Marine Observatory, Nagasaki, Japan; Mintrop, L [MARIANDA, Kiel, Germany; Miyazaki, C [Faculty of Environmental Earth Science, Hokkaido University, Hokkaido, Japan; Murata, A [Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan; Nakadate, A [Marine Division, Global Environment and Marine Department, Japan Meteorological Agency, Tokyo, Japan; Nakano, Y [Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan; Nakaoka, S [National Institute for Environmental Studies (NIES), Tsukuba, Japan; Nojiri, Y [National Institute for Environmental Studies, Tsukuba, Japan; et al.

2013-01-01T23:59:59.000Z

154

Molecular Dynamics Simulations of CO2 Formation in Interstellar Ices  

E-Print Network [OSTI]

CO2 ice is one of the most abundant components in ice-coated interstellar ices besides H2O and CO, but the most favorable path to CO2 ice is still unclear. Molecular dynamics calculations on the ultraviolet photodissociation of different kinds of CO-H2O ice systems have been performed at 10 K in order to demonstrate that the reaction between CO and an OH molecule resulting from H2O photodissociation through the first excited state is a possible route to form CO2 ice. However, our calculations, which take into account different ice surface models, suggest that there is another product with a higher formation probability ((3.00+-0.07)x10-2), which is the HOCO complex, whereas the formation of CO2 has a probability of only (3.6+-0.7)x10-4. The initial location of the CO is key to obtain reaction and form CO2: the CO needs to be located deep into the ice. The HOCO complex becomes trapped in the cold ice surface in the trans-HOCO minimum because it quickly loses its internal energy to the surrounding ice, preventi...

Arasa, Carina; van Dishoeck, Ewine F; Kroes, Geert-Jan

2013-01-01T23:59:59.000Z

155

The supply chain of CO2 emissions  

E-Print Network [OSTI]

emissions from traded fossil fuels; Top), production (F Pr )Regional, and National Fossil-Fuel CO 2 Emissions (Carbonfrom the burning of fossil fuels are conventionally

Davis, S. J; Peters, G. P; Caldeira, K.

2011-01-01T23:59:59.000Z

156

Modeling of CO2 storage in aquifers  

E-Print Network [OSTI]

Feb 6, 2011 ... atmosphere, increasing its temperature (greenhouse effect). To minimize climate change impacts, geological sequestration of CO2 is an ...

santos,,,

157

Modeling of Near-Surface Leakage and Seepage of CO2 for Risk Characterization  

SciTech Connect (OSTI)

The injection of carbon dioxide (CO2) into deep geologic carbon sequestration sites entails risk that CO2 will leak away from the primary storage formation and migrate upwards to the unsaturated zone from which it can seep out of the ground. We have developed a coupled modeling framework called T2CA for simulating CO2 leakage and seepage in the subsurface and in the atmospheric surface layer. The results of model simulations can be used to calculate the two key health, safety, and environmental (HSE) risk drivers, namely CO2 seepage flux and nearsurface CO2 concentrations. Sensitivity studies for a subsurface system with a thick unsaturated zone show limited leakage attenuation resulting in correspondingly large CO2 concentrations in the shallow subsurface. Large CO2 concentrations in the shallow subsurface present a risk to plant and tree roots, and to humans and other animals in subsurface structures such as basements or utility vaults. Whereas CO2 concentrations in the subsurface can be high, surfacelayer winds reduce CO2 concentrations to low levels for the fluxes investigated. We recommend more verification and case studies be carried out with T2CA, along with the development of extensions to handle additional scenarios such as calm conditions, topographic effects, and catastrophic surface-layer discharge events.

Oldenburg, Curtis M.; Unger, Andre A.J.

2004-02-18T23:59:59.000Z

158

New Strategies for Finding Abandoned Wells at Proposed Geologic Storage Sites for CO2  

SciTech Connect (OSTI)

Prior to the injection of CO2 into geological formations, either for enhanced oil recovery or for CO2 sequestration, it is necessary to locate wells that perforate the target formation and are within the radius of influence for planned injection wells. Locating and plugging wells is necessary because improperly plugged well bores provide the most rapid route for CO2 escape to the surface. This paper describes the implementation and evaluation of helicopter and ground-based well detection strategies at a 100+ year old oilfield in Wyoming where a CO2 flood is planned. This project was jointly funded by the U.S. Department of Energy’s National Energy Technology Laboratory and Fugro Airborne Surveys.

Hammack, R.W.; Veloski, G.A.

2007-09-01T23:59:59.000Z

159

4, 23852405, 2007 CO2 and climate  

E-Print Network [OSTI]

BGD 4, 2385­2405, 2007 CO2 and climate affect European carbon ballance R. Harrison and C. Jones Competing roles of rising CO2 and climate change in the contemporary European carbon balance R. Harrison and C. Jones Met Office, Hadley Centre for Climate Change, Exeter, EX1 3PB, UK Received: 13 April 2007

Paris-Sud XI, Université de

160

Capturing CO2 via reactions in nanopores.  

SciTech Connect (OSTI)

This one-year exploratory LDRD aims to provide fundamental understanding of the mechanism of CO2 scrubbing platforms that will reduce green house gas emission and mitigate the effect of climate change. The project builds on the team member's expertise developed in previous LDRD projects to study the capture or preferential retention of CO2 in nanoporous membranes and on metal oxide surfaces. We apply Density Functional Theory and ab initio molecular dynamics techniques to model the binding of CO2 on MgO and CaO (100) surfaces and inside water-filled, amine group functionalized silica nanopores. The results elucidate the mechanisms of CO2 trapping and clarify some confusion in the literature. Our work identifies key future calculations that will have the greatest impact on CO2 capture technologies, and provides guidance to science-based design of platforms that can separate the green house gas CO2 from power plant exhaust or even from the atmosphere. Experimentally, we modify commercial MFI zeolite membranes and find that they preferentially transmit H2 over CO2 by a factor of 34. Since zeolite has potential catalytic capability to crack hydrocarbons into CO2 and H2, this finding paves the way for zeolite membranes that can convert biofuel into H2 and separate the products all in one step.

Leung, Kevin; Nenoff, Tina Maria; Criscenti, Louise Jacqueline; Tang, Z [University of Cincinnati; Dong, J. H. [University of Cincinnati

2008-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

CO2 Capture with Enzyme Synthetic Analogue  

SciTech Connect (OSTI)

Project overview provides background on carbonic anhydrase transport mechanism for CO2 in the human body and proposed approach for ARPA-E project to create a synthetic enzyme analogue and utilize it in a membrane for CO2 capture from flue gas.

Harry Cordatos

2010-03-01T23:59:59.000Z

162

Balancing the global energy demand with a decrease in an-thropogenic CO2 emissions to mitigate climate change has  

E-Print Network [OSTI]

- and gas-burning power plants, compressed into a supercritical fluid and injected into 11 deep saline, they assumed that the rate of CO2 production from the power plants would increase linearly, reach a maxi- mum to evaluate the prospects of using CCS to store CO2 emissions that would be captured from the flue gas of coal

Entekhabi, Dara

163

A Computationally Efficient Approach to Applying the SAFT Equation for CO2 + H2O Phase Equilibrium  

E-Print Network [OSTI]

into oil (hydrocarbon) reservoirs is a recognized technology for enhancing oil production and CO2 injection into depleted oil and/or natural gas reservoirs is already underway to reduce CO2 emission to the atmosphere [4]. Predicting the sequestration potential and long term behavior of man-made geologic reservoirs requires

Patzek, Tadeusz W.

164

meters in CO2 euthanasia chambers. All CO2 euthanasia chambers in both  

E-Print Network [OSTI]

meters in CO2 euthanasia chambers. All CO2 euthanasia chambers in both the facilities and laboratories will need flow meters. ULAR is currently in the process of identifying a cost-effective, accurate, and durable flow meter to install in all of the CO2 chambers in all of the vivaria. When a specific model

Bushman, Frederic

165

Sustainable Carbon Sequestration: Increasing CO2-Storage Efficiency through a CO2-Brine Displacement Approach  

E-Print Network [OSTI]

CO2 sequestration is one of the proposed methods for reducing anthropogenic CO2 emissions to the atmosphere and therefore mitigating global climate change. Few studies on storing CO2 in an aquifer have been conducted on a regional scale. This study...

Akinnikawe, Oyewande

2012-10-19T23:59:59.000Z

166

Reactivity of iron-bearing minerals and CO2 sequestration: A multi-disciplinary experimental approach  

SciTech Connect (OSTI)

The reactivity of sandstones was studied under conditions relevant to the injection of supercritical carbon dioxide in the context of carbon geosequestration. The emphasis of the study was on the reactivity of iron-bearing minerals when exposed to supercritical CO2 (scCO2) and scCO2 with commingled aqueous solutions containing H2S and/or SO2. Flow through and batch experiments were conducted. Results indicate that sandstones, irrespective of their mineralogy, are not reactive when exposed to pure scCO2 or scCO2 with commingled aqueous solutions containing H2S and/or SO2 under conditions simulating the environment near the injection point (flow through experiments). However, sandstones are reactive under conditions simulating the edge of the injected CO2 plume or ahead of the plume (batch experiments). Sandstones containing hematite (red sandstone) are particularly reactive. The composition of the reaction products is strongly dependent on the composition of the aqueous phase. The presence of dissolved sulfide leads to the conversion of hematite into pyrite and siderite. The relative amount of the pyrite and siderite is influenced by the ionic strength of the solution. Little reactivity is observed when sulfite is present in the aqueous phase. Sandstones without hematite (grey sandstones) show little reactivity regardless of the solution composition.

Schoonen, Martin A. [Stony Brook University] (ORCID:0000000271331160)

2014-12-22T23:59:59.000Z

167

Semi-analytical Solution for Multiphase Fluid Flow Applied to CO2 Sequestration in Geologic Porous Media  

E-Print Network [OSTI]

atmospheric emissions of CO_(2). Feasibility assessments of proposed sequestration sites require realistic and computationally efficient models to simulate the subsurface pressure response and monitor the injection process, and quantify the risks of leakage...

Mohamed, Ahmed Mohamed Anwar Sayed

2013-08-01T23:59:59.000Z

168

Dewetting of silica surfaces upon reactions with supercritical CO2 and brine: Pore-scale studies in micromodels  

E-Print Network [OSTI]

of the Gas-Crude Oil-Reservoir Water System. J Chem Eng Datain Naturally Fractured Oil Reservoirs. Energ Fuel 2010, 24,CO 2 injected into depleted oil reservoirs may have faster

Kim, Y.

2013-01-01T23:59:59.000Z

169

IMPLEMENTING A NOVEL CYCLIC CO2 FLOOD IN PALEOZOIC REEFS  

SciTech Connect (OSTI)

Recycled CO2 is being used in this demonstration project to produce bypassed oil from the Silurian Dover 35 Niagaran pinnacle reef located in Otsego County, Michigan. CO2 injection in the Dover 35 field into the Salling-Hansen 4-35A well began on May 6, 2004. A second injection well, the Salling-Hansen 1-35, commenced injection in August 2004. Oil production in the Pomerzynski 5-35 producing well increased from 9 BOPD prior to operations to an average of 165 BOPD in December, 2004 and has produced at an average rate of 61 BOPD (Jan-Dec, 2005). The Salling-Hansen 4-35A also produced during this reporting period an average of 29 BOPD. These increases have occurred as a result of CO2 injection and the production rate appears to be stabilizing. CO2 injection volume has reached approximately 2.18 BCF. The CO2 injection phase of this project has been fully operational since December 2004 and most downhole mechanical issues have been solved and surface facility modifications have been completed. It is anticipated that filling operations will run for another 6-12 months from July 1, 2005. In most other aspects, the demonstration is going well and hydrocarbon production has been stabilized at an average rate of 57 BOPD (July-Dec, 2005). Our industry partners continue to experiment with injection rates and pressures, various downhole and surface facility mechanical configurations, and the huff-n-puff technique to develop best practices for these types of enhanced recovery projects. Subsurface characterization was completed using well log tomography and 3D visualizations to map facies distributions and reservoir properties in the Belle River Mills, Chester 18, Dover 35, and Dover 36 Fields. The Belle River Mills and Chester 18 fields are being used as type-fields because they have excellent log and/or core data coverage. Amplitude slicing of the log porosity, normalized gamma ray, core permeability, and core porosity curves are showing trends that indicate significant heterogeneity and compartmentalization in these reservoirs associated with the original depositional fabric and pore types of the carbonate reservoir rocks. Accumulated pressure data supports the hypothesis of extreme heterogeneity in the Dover 35. Some intervals now have pressure readings over 2345 psig (April 29, 2005) in the A-1 Carbonate while nearby Niagaran Brown intervals only show 1030 psig (March 7, 2005). This is a pressure differential over 1300 psig and suggests significant vertical barriers in the reef, consistent with the GR tomography modeling. Digital and hard copy data have been compiled for the Niagaran reefs in the Michigan Basin, including a detailed summary of 20 fields in the vicinity of the demonstration well. Technology transfer took place through technical presentations regarding visualization of the reservoir heterogeneity in these Niagaran reefs. Oral presentations were given at two Petroleum Technology Transfer Council workshops, a Michigan Oil and Gas Association Conference, a Michigan Basin Geological Society meeting, and the Eastern American Association of Petroleum Geologist's Annual meeting. In addition, we met with our industry partners several times during the first half of 2005 to communicate and discuss the reservoir characterization and field site aspects of the demonstration project. A technical paper was published in the April 2005 issue of the AAPG Bulletin on the characterization of the Belle River Mills Field.

James R. Wood; W. quinlan; A. Wylie

2006-06-01T23:59:59.000Z

170

Risk Assessment and Monitoring of Stored CO2 in Organic Rocks Under Non-Equilibrium Conditions  

SciTech Connect (OSTI)

The USA is embarking upon tackling the serious environmental challenges posed to the world by greenhouse gases, especially carbon dioxide (CO2). The dimension of the problem is daunting. In fact, according to the Energy Information Agency, nearly 6 billion metric tons of CO2 were produced in the USA in 2007 with coal-burning power plants contributing about 2 billion metric tons. To mitigate the concerns associated with CO2 emission, geological sequestration holds promise. Among the potential geological storage sites, unmineable coal seams and shale formations in particular show promise because of the probability of methane recovery while sequestering the CO2. However. the success of large-scale sequestration of CO2 in coal and shale would hinge on a thorough understanding of CO2's interactions with host reservoirs. An important parameter for successful storage of CO2 reservoirs would be whether the pressurized CO2 would remain invariant in coal and shale formations under reasonable internal and/or external perturbations. Recent research has brought to the fore the potential of induced seismicity, which may result in caprock compromise. Therefore, to evaluate the potential risks involved in sequestering CO2 in Illinois bituminous coal seams and shale, we studied: (i) the mechanical behavior of Murphysboro (Illinois) and Houchin Creek (Illinois) coals, (ii) thermodynamic behavior of Illinois bituminous coal at - 100oC ? T ? 300oC, (iii) how high pressure CO2 (up to 20.7 MPa) modifies the viscosity of the host, (iv) the rate of emission of CO2 from Illinois bituminous coal and shale cores if the cores, which were pressurized with high pressure (? 20.7 MPa) CO2, were exposed to an atmospheric pressure, simulating the development of leakage pathways, (v) whether there are any fractions of CO2 stored in these hosts which are resistance to emission by simply exposing the cores to atmospheric pressure, and (vi) how compressive shockwaves applied to the coal and shale cores, which were pressurized with high pressure CO2, determine the fate of sequestered CO2 in these cores. Our results suggested that Illinois bituminous coal in its unperturbed state, i.e., when not pressurized with CO2, showed large variations in the mechanical properties. Modulus varied from 0.7 GPa to 3.4 GPa even though samples were extracted from a single large chunk of coal. We did not observe any glass transition for Illinois bituminous coal at - 100oC ? T ? 300oC, however, when the coal was pressurized with CO2 at ambient ? P ? 20.7 MPa, the viscosity of the coal decreased and inversely scaled with the CO2 pressure. The decrease in viscosity as a function of pressure could pose CO2 injection problems for coal as lower viscosity would allow the solid coal to flow to plug the fractures, fissures, and cleats. Our experiments also showed a very small fraction of CO2 was absorbed in coal; and when CO2 pressurized coals were exposed to atmospheric conditions, the loss of CO2 from coals was massive. Half of the sequestered gas from the coal cores was lost in less than 20 minutes. Our shockwave experiments on Illinois bituminous coal, New Albany shale (Illinois), Devonian shale (Ohio), and Utica shale (Ohio) presented clear evidence that the significant emission of the sequestered CO2 from these formations cannot be discounted during seismic activity, especially if caprock is compromised. It is argued that additional shockwave studies, both compressive and transverse, would be required for successfully mapping the risks associated with sequestering high pressure CO2 in coal and shale formations.

Malhotra, Vivak

2014-06-30T23:59:59.000Z

171

Analysis of CO2 Separation from Flue Gas, Pipeline Transportation, and Sequestration in Coal  

SciTech Connect (OSTI)

This report was written to satisfy a milestone of the Enhanced Coal Bed Methane Recovery and CO2 Sequestration task of the Big Sky Carbon Sequestration project. The report begins to assess the costs associated with separating the CO2 from flue gas and then injecting it into an unminable coal seam. The technical challenges and costs associated with CO2 separation from flue gas and transportation of the separated CO2 from the point source to an appropriate sequestration target was analyzed. The report includes the selection of a specific coal-fired power plant for the application of CO2 separation technology. An appropriate CO2 separation technology was identified from existing commercial technologies. The report also includes a process design for the chosen technology tailored to the selected power plant that used to obtain accurate costs of separating the CO2 from the flue gas. In addition, an analysis of the costs for compression and transportation of the CO2 from the point-source to an appropriate coal bed sequestration site was included in the report.

Eric P. Robertson

2007-09-01T23:59:59.000Z

172

IMPLEMENTING A NOVEL CYCLIC CO2 FLOOD IN PALEOZOIC REEFS  

SciTech Connect (OSTI)

Recycled CO2 will be used in this demonstration project to produce bypassed oil from the Silurian Dover 35 pinnacle reef (Otsego County) in the Michigan Basin. Contract negotiations by our industry partner to gain access to the CO2 supply have been completed and the State of Michigan has issued an order to allow operation of the project. Injection of CO2 is scheduled to begin in February, 2004. Subsurface characterization is being completed using well log tomography animations and 3D visualizations to map facies distributions and reservoir properties in two reefs, the Belle River Mills and Chester 18 Fields. The Belle River Mills and Chester18 fields are being used as type-fields because they have excellent log and/or core data coverage. Amplitude slicing of the normalized gamma ray and core permeability and core porosity curves is showing trends that indicate significant heterogeneity and compartmentalization in these reservoirs associated with the original depositional fabric of the rocks. Digital and hard copy data continues to be compiled for the Niagaran reefs in the Michigan Basin. Technology transfer took place through technical presentations regarding visualization of the heterogeneity of the Niagaran reefs. An oral presentation was given at the AAPG Eastern Section Meeting and a booth at the same meeting was used to meet one-on-one with operators.

James R. Wood; W. Quinlan; A. Wylie

2004-01-01T23:59:59.000Z

173

Prospects for Subsurface CO2 Sequestration  

E-Print Network [OSTI]

to be around 28 Gigatons. For the last few centuries prior to the industrial revolution, the average atmospheric CO2 concentra- tion was about 280 ppm.2 Since the onset of the industrial rev- olution, there has

Firoozabadi, Abbas

174

Thermodynamic Data for Geochemical Modeling of Carbonate Reactions Associated with CO2 Sequestration – Literature Review  

SciTech Connect (OSTI)

Permanent storage of anthropogenic CO2 in deep geologic formations is being considered as a means to reduce the concentration of atmospheric CO2 and thus its contribution to global climate change. To ensure safe and effective geologic sequestration, numerous studies have been completed of the extent to which the CO2 migrates within geologic formations and what physical and geochemical changes occur in these formations when CO2 is injected. Sophisticated, computerized reservoir simulations are used as part of field site and laboratory CO2 sequestration studies. These simulations use coupled multiphase flow-reactive chemical transport models and/or standalone (i.e., no coupled fluid transport) geochemical models to calculate gas solubility, aqueous complexation, reduction/oxidation (redox), and/or mineral solubility reactions related to CO2 injection and sequestration. Thermodynamic data are critical inputs to modeling geochemical processes. The adequacy of thermodynamic data for carbonate compounds has been identified as an important data requirement for the successful application of these geochemical reaction models to CO2 sequestration. A review of thermodynamic data for CO2 gas and carbonate aqueous species and minerals present in published data compilations and databases used in geochemical reaction models was therefore completed. Published studies that describe mineralogical analyses from CO2 sequestration field and natural analogue sites and laboratory studies were also reviewed to identify specific carbonate minerals that are important to CO2 sequestration reactions and therefore require thermodynamic data. The results of the literature review indicated that an extensive thermodynamic database exists for CO2 and CH4 gases, carbonate aqueous species, and carbonate minerals. Values of ?fG298° and/or log Kr,298° are available for essentially all of these compounds. However, log Kr,T° or heat capacity values at temperatures above 298 K exist for less than approximately one-third of these compounds. Because the temperatures of host formations that will be used for CO2 injection and sequestration will be at tempera¬tures in the range of 50ºC to 100ºC or greater, the lack of high temperature thermodynamic values for key carbonate compounds especially minerals, will impact the accuracy of some modeling calculations.

Krupka, Kenneth M.; Cantrell, Kirk J.; McGrail, B. Peter

2010-09-28T23:59:59.000Z

175

Data Assimilation Tools for CO2 Reservoir Model Development – A Review of Key Data Types, Analyses, and Selected Software  

SciTech Connect (OSTI)

Pacific Northwest National Laboratory (PNNL) has embarked on an initiative to develop world-class capabilities for performing experimental and computational analyses associated with geologic sequestration of carbon dioxide. The ultimate goal of this initiative is to provide science-based solutions for helping to mitigate the adverse effects of greenhouse gas emissions. This Laboratory-Directed Research and Development (LDRD) initiative currently has two primary focus areas—advanced experimental methods and computational analysis. The experimental methods focus area involves the development of new experimental capabilities, supported in part by the U.S. Department of Energy’s (DOE) Environmental Molecular Science Laboratory (EMSL) housed at PNNL, for quantifying mineral reaction kinetics with CO2 under high temperature and pressure (supercritical) conditions. The computational analysis focus area involves numerical simulation of coupled, multi-scale processes associated with CO2 sequestration in geologic media, and the development of software to facilitate building and parameterizing conceptual and numerical models of subsurface reservoirs that represent geologic repositories for injected CO2. This report describes work in support of the computational analysis focus area. The computational analysis focus area currently consists of several collaborative research projects. These are all geared towards the development and application of conceptual and numerical models for geologic sequestration of CO2. The software being developed for this focus area is referred to as the Geologic Sequestration Software Suite or GS3. A wiki-based software framework is being developed to support GS3. This report summarizes work performed in FY09 on one of the LDRD projects in the computational analysis focus area. The title of this project is Data Assimilation Tools for CO2 Reservoir Model Development. Some key objectives of this project in FY09 were to assess the current state-of-the-art in reservoir model development, the data types and analyses that need to be performed in order to develop and parameterize credible and robust reservoir simulation models, and to review existing software that is applicable to these analyses. This report describes this effort and highlights areas in which additional software development, wiki application extensions, or related GS3 infrastructure development may be warranted.

Rockhold, Mark L.; Sullivan, E. C.; Murray, Christopher J.; Last, George V.; Black, Gary D.

2009-09-30T23:59:59.000Z

176

Uncertainty quantification for the impact of injection rate fluctuation on the geomechanical response of geological carbon sequestration  

SciTech Connect (OSTI)

We present an analysis of the geomechanical effects of injection rate fluctuations for geological sequestration of carbon dioxide (CO2). Initially, we present analytical solutions for the effects of injection rate fluctuations on CO2 fluid pressure spatial distribution and temporal evolution for a typical injection scenario. Numerical calculations are performed using a finite element method to investigate the effects of injection rate fluctuations on geomechanical deformation, stresses, and potential failure of the aquifer and caprock layers. The numerical method was first validated by the fluid pressure distribution’s good agreement with the analytical solution. It was shown that for any Gaussian fluctuations of injection rate Q with given mean Q ? and variance ?_Q, the coefficients of variance for fluid pressure (?_p=?_p?p ? ), deformation (?_u=?_u?u ? ), and stresses (?_?=?_??? ? ) increase linearly with the coefficient of variance for injection rate (?_Q=?_Q?Q ? ). The proportional constants are identified, and the fluctuations have the most pronounced effect on the geomechanical stresses, and, therefore, on the potential failure of the aquifer and caprock layers. Instead of expensive computational simulation, this study provides an efficient tool to estimate the geomechanical response variance to injection rate fluctuation. A failure analysis was presented based on the numerical results, where probability of failure was estimated for fluctuating injection rates with different mean and variance during the entire injection period. It was found that with increasing injection rate fluctuation, the failure probability increases significantly. Therefore, the risk associated with injection rate fluctuations should be carefully evaluated.?

Bao, Jie; Chu, Yanjun; Xu, Zhijie; Tartakovsky, Alexandre M.; Fang, Yilin

2014-02-02T23:59:59.000Z

177

International Collaboration on CO2 Sequestration  

SciTech Connect (OSTI)

On December 4, 1997, the US Department of Energy (USDOE), the New Energy and Industrial Technology Development Organization of Japan (NEDO), and the Norwegian Research Council (NRC) entered into a Project Agreement for International Collaboration on CO{sub 2} Ocean Sequestration. Government organizations from Japan, Canada, and Australia, and a Swiss/Swedish engineering firm later joined the agreement, which outlined a research strategy for ocean carbon sequestration via direct injection. The members agreed to an initial field experiment, with the hope that if the initial experiment was successful, there would be subsequent field evaluations of increasingly larger scale to evaluate environmental impacts of sequestration and the potential for commercialization. The evolution of the collaborative effort, the supporting research, and results for the International Collaboration on CO{sub 2} Ocean Sequestration were documented in almost 100 papers and reports, including 18 peer-reviewed journal articles, 46 papers, 28 reports, and 4 graduate theses. These efforts were summarized in our project report issued January 2005 and covering the period August 23, 1998-October 23, 2004. An accompanying CD contained electronic copies of all the papers and reports. This report focuses on results of a two-year sub-task to update an environmental assessment of acute marine impacts resulting from direct ocean sequestration. The approach is based on the work of Auerbach et al. [6] and Caulfield et al. [20] to assess mortality to zooplankton, but uses updated information concerning bioassays, an updated modeling approach and three modified injection scenarios: a point release of negatively buoyant solid CO{sub 2} hydrate particles from a moving ship; a long, bottom-mounted diffuser discharging buoyant liquid CO{sub 2} droplets; and a stationary point release of hydrate particles forming a sinking plume. Results suggest that in particular the first two discharge modes could be successfully designed to largely avoid zooplankton mortality. Sub-lethal and ecosystem effects are discussed qualitatively, but not analyzed quantitatively.

Peter H. Israelsson; E. Eric Adams

2007-06-30T23:59:59.000Z

178

Version 3.0 SOP 4 --p(CO2) October 12, 2007 (p(CO2))  

E-Print Network [OSTI]

Version 3.0 SOP 4 -- p(CO2) October 12, 2007 91 SOP 4 (p(CO2)) - 1. . microatmospheres . (20°C 250-2000 µatm) (mole fraction) . 2. CO2 (mole fraction) . 2 2(CO ) (CO( ) . . Frit . #12;October 12, 2007 SOP 4 -- p(CO2) Version 3.0 92 CO2 CO2 2 . p(CO2) (1) . 4. 3

179

Atmospheric CO2 concentrations during ancient greenhouse climates were similar  

E-Print Network [OSTI]

Atmospheric CO2 concentrations during ancient greenhouse climates were similar to those predicted atmospheric CO2 concentrations (½CO2atm) during Earth's ancient greenhouse episodes is essential for accurately predicting the response of future climate to elevated CO2 levels. Empirical estimates of ½CO2atm

Ahmad, Sajjad

180

Exploring the effects of data quality, data worth, and redundancy of CO2 gas pressure and saturation data on reservoir characterization through PEST Inversion  

SciTech Connect (OSTI)

This study examined the impacts of reservoir properties on CO2 migration after subsurface injection and evaluated the possibility of characterizing reservoir properties using CO2 monitoring data such as saturation distribution. The injection reservoir was assumed to be located 1400-1500 m below the ground surface such that CO2 remained in the supercritical state. The reservoir was assumed to contain layers with alternating conductive and resistive properties, which is analogous to actual geological formations such as the Mount Simon Sandstone unit. The CO2 injection simulation used a cylindrical grid setting in which the injection well was situated at the center of the domain, which extended up to 8000 m from the injection well. The CO2 migration was simulated using the PNNL-developed simulator STOMP-CO2e (the water-salt-CO2 module). We adopted a nonlinear parameter estimation and optimization modeling software package, PEST, for automated reservoir parameter estimation. We explored the effects of data quality, data worth, and data redundancy on the detectability of reservoir parameters using CO2 saturation monitoring data, by comparing PEST inversion results using data with different levels of noises, various numbers of monitoring wells and locations, and different data collection spacing and temporal sampling intervals. This study yielded insight into the use of CO2 saturation monitoring data for reservoir characterization and how to design the monitoring system to optimize data worth and reduce data redundancy.

Fang, Zhufeng; Hou, Zhangshuan; Lin, Guang; Engel, David W.; Fang, Yilin; Eslinger, Paul W.

2014-04-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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181

Near-Surface CO2 Monitoring And Analysis To Detect Hidden Geothermal Systems  

SciTech Connect (OSTI)

''Hidden'' geothermal systems are systems devoid of obvious surface hydrothermal manifestations. Emissions of moderate-to-low solubility gases may be one of the primary near-surface signals from these systems. We investigate the potential for CO2 detection and monitoring below and above ground in the near-surface environment as an approach to exploration targeting hidden geothermal systems. We focus on CO2 because it is the dominant noncondensible gas species in most geothermal systems and has moderate solubility in water. We carried out numerical simulations of a CO2 migration scenario to calculate the magnitude of expected fluxes and concentrations. Our results show that CO2 concentrations can reach high levels in the shallow subsurface even for relatively low geothermal source CO2 fluxes. However, once CO2 seeps out of the ground into the atmospheric surface layer, winds are effective at dispersing CO2 seepage. In natural ecological systems in the absence of geothermal gas emissions, near-surface CO2 fluxes and concentrations are predominantly controlled by CO2 uptake by photosynthesis, production by root respiration, microbial decomposition of soil/subsoil organic matter, groundwater degassing, and exchange with the atmosphere. Available technologies for monitoring CO2 in the near-surface environment include the infrared gas analyzer, the accumulation chamber method, the eddy covariance method, hyperspectral imaging, and light detection and ranging. To meet the challenge of detecting potentially small-magnitude geothermal CO2 emissions within the natural background variability of CO2, we propose an approach that integrates available detection and monitoring techniques with statistical analysis and modeling strategies. The proposed monitoring plan initially focuses on rapid, economical, reliable measurements of CO2 subsurface concentrations and surface fluxes and statistical analysis of the collected data. Based on this analysis, are as with a high probability of containing geothermal CO2 anomalies can be further sampled and analyzed using more expensive chemical and isotopic methods. Integrated analysis of all measurements will determine definitively if CO2 derived from a deep geothermal source is present, and if so, the spatial extent of the anomaly. The suitability of further geophysical measurements, installation of deep wells, and geochemical analyses of deep fluids can then be determined based on the results of the near surface CO2 monitoring program.

Lewicki, Jennifer L.; Oldenburg, Curtis M.

2005-01-19T23:59:59.000Z

182

Growth, CO2 Consumption, and H2 Production of Anabaena variabilis ATCC 29413-U under Different Irradiances and CO2 Concentrations  

E-Print Network [OSTI]

Phase Medium Irradiance ? H2 ? CO2 Maximum Reported Ratesa) Specific CO 2 uptake rate, ? CO2 (kg CO 2 /kg dry cell/h)

Berberoglu, Halil; Barra, Natasha; Pilon, Laurent; Jay, Jenny

2008-01-01T23:59:59.000Z

183

INTERNATIONAL COLLABORATION ON CO2 SEQUESTRATION  

SciTech Connect (OSTI)

On December 4, 1997, the US Department of Energy (DOE), the New Energy and Industrial Technology Development Organization of Japan (NEDO), and the Norwegian Research Council (NRC) entered into a ''Project Agreement for International Collaboration on CO{sub 2} Ocean Sequestration''. Government organizations from Japan, Canada, and Australia, and a Swiss/Swedish engineering firm later joined the agreement, which outlined a research strategy for ocean carbon sequestration via direct injection. The members agreed to an initial field experiment, with the hope that if the initial experiment was successful, there would be subsequent field evaluations of increasingly larger scale to evaluate environmental impacts of sequestration and the potential for commercialization. This report is a summary of the evolution of the collaborative effort, the supporting research, and results for the International Collaboration on CO{sub 2} Ocean Sequestration. Almost 100 papers and reports resulted from this collaboration, including 18 peer reviewed journal articles, 46 papers, 28 reports, and 4 graduate theses. A full listing of these publications is in the reference section.

Howard J. Herzog; E. Eric Adams

2005-04-01T23:59:59.000Z

184

MEMBRANE PROCESS TO SEQUESTER CO2 FROM POWER PLANT FLUE GAS  

SciTech Connect (OSTI)

The objective of this project was to assess the feasibility of using a membrane process to capture CO2 from coal-fired power plant flue gas. During this program, MTR developed a novel membrane (Polaris™) with a CO2 permeance tenfold higher than commercial CO2-selective membranes used in natural gas treatment. The Polaris™ membrane, combined with a process design that uses a portion of combustion air as a sweep stream to generate driving force for CO2 permeation, meets DOE post-combustion CO2 capture targets. Initial studies indicate a CO2 separation and liquefaction cost of $20 - $30/ton CO2 using about 15% of the plant energy at 90% CO2 capture from a coal-fired power plant. Production of the Polaris™ CO2 capture membrane was scaled up with MTR’s commercial casting and coating equipment. Parametric tests of cross-flow and countercurrent/sweep modules prepared from this membrane confirm their near-ideal performance under expected flue gas operating conditions. Commercial-scale, 8-inch diameter modules also show stable performance in field tests treating raw natural gas. These findings suggest that membranes are a viable option for flue gas CO2 capture. The next step will be to conduct a field demonstration treating a realworld power plant flue gas stream. The first such MTR field test will capture 1 ton CO2/day at Arizona Public Service’s Cholla coal-fired power plant, as part of a new DOE NETL funded program.

Tim Merkel; Karl Amo; Richard Baker; Ramin Daniels; Bilgen Friat; Zhenjie He; Haiqing Lin; Adrian Serbanescu

2009-03-31T23:59:59.000Z

185

Effect of Dissolved CO2 on a Shallow Groundwater System: A Controlled Release Field Experiment  

E-Print Network [OSTI]

major ions. Brine contamination associated with oil and natural gas operations is well documented their respective maximum contaminant levels throughout the experiment. INTRODUCTION Injecting CO2 emissions deep underground in depleted oil and natural gas reservoirs, or rock formations containing brine too salty to drink

Hubbard, Susan

186

DOE Targets Rural Indiana Geologic Formation for CO2 Storage Field Test  

Broader source: Energy.gov [DOE]

A U.S. Department of Energy team of regional partners has begun injecting 8,000 tons of carbon dioxide (CO2) to evaluate the carbon storage potential and test the enhanced oil recovery (EOR) potential of the Mississippian-aged Clore Formation in Posey County, Ind.

187

Active Management of Integrated Geothermal-CO2 Storage Reservoirs in Sedimentary Formations  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The purpose of phase 1 is to determine the feasibility of integrating geologic CO2 storage (GCS) with geothermal energy production. Phase 1 includes reservoir analyses to determine injector/producer well schemes that balance the generation of economically useful flow rates at the producers with the need to manage reservoir overpressure to reduce the risks associated with overpressure, such as induced seismicity and CO2 leakage to overlying aquifers. Based on a range of well schemes, techno-economic analyses of the levelized cost of electricity (LCOE) are conducted to determine the economic benefits of integrating GCS with geothermal energy production. In addition to considering CO2 injection, reservoir analyses are conducted for nitrogen (N2) injection to investigate the potential benefits of incorporating N2 injection with integrated geothermal-GCS, as well as the use of N2 injection as a potential pressure-support and working-fluid option. Phase 1 includes preliminary environmental risk assessments of integrated geothermal-GCS, with the focus on managing reservoir overpressure. Phase 1 also includes an economic survey of pipeline costs, which will be applied in Phase 2 to the analysis of CO2 conveyance costs for techno-economics analyses of integrated geothermal-GCS reservoir sites. Phase 1 also includes a geospatial GIS survey of potential integrated geothermal-GCS reservoir sites, which will be used in Phase 2 to conduct sweet-spot analyses that determine where promising geothermal resources are co-located in sedimentary settings conducive to safe CO2 storage, as well as being in adequate proximity to large stationary CO2 sources.

Buscheck, Thomas A.

188

10 MW Supercritical CO2 Turbine Test  

SciTech Connect (OSTI)

The Supercritical CO2 Turbine Test project was to demonstrate the inherent efficiencies of a supercritical carbon dioxide (s-CO2) power turbine and associated turbomachinery under conditions and at a scale relevant to commercial concentrating solar power (CSP) projects, thereby accelerating the commercial deployment of this new power generation technology. The project involved eight partnering organizations: NREL, Sandia National Laboratories, Echogen Power Systems, Abengoa Solar, University of Wisconsin at Madison, Electric Power Research Institute, Barber-Nichols, and the CSP Program of the U.S. Department of Energy. The multi-year project planned to design, fabricate, and validate an s-CO2 power turbine of nominally 10 MWe that is capable of operation at up to 700°C and operates in a dry-cooled test loop. The project plan consisted of three phases: (1) system design and modeling, (2) fabrication, and (3) testing. The major accomplishments of Phase 1 included: Design of a multistage, axial-flow, s-CO2 power turbine; Design modifications to an existing turbocompressor to provide s-CO2 flow for the test system; Updated equipment and installation costs for the turbomachinery and associated support infrastructure; Development of simulation tools for the test loop itself and for more efficient cycle designs that are of greater commercial interest; Simulation of s-CO2 power cycle integration into molten-nitrate-salt CSP systems indicating a cost benefit of up to 8% in levelized cost of energy; Identification of recuperator cost as a key economic parameter; Corrosion data for multiple alloys at temperatures up to 650ºC in high-pressure CO2 and recommendations for materials-of-construction; and Revised test plan and preliminary operating conditions based on the ongoing tests of related equipment. Phase 1 established that the cost of the facility needed to test the power turbine at its full power and temperature would exceed the planned funding for Phases 2 and 3. Late in Phase 1 an opportunity arose to collaborate with another turbine-development team to construct a shared s-CO2 test facility. The synergy of the combined effort would result in greater facility capabilities than either separate project could produce and would allow for testing of both turbine designs within the combined budgets of the two projects. The project team requested a no-cost extension to Phase 1 to modify the subsequent work based on this collaborative approach. DOE authorized a brief extension, but ultimately opted not to pursue the collaborative facility and terminated the project.

Turchi, Craig

2014-01-29T23:59:59.000Z

189

Micromodel Investigations of CO2 Exsolution from Carbonated Water...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Micromodel Investigations of CO2 Exsolution from Carbonated Water in Sedimentary Rocks. Micromodel Investigations of CO2 Exsolution from Carbonated Water in Sedimentary Rocks....

190

Cryogenic CO2 Formation on Oxidized Gold Clusters Synthesized...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cryogenic CO2 Formation on Oxidized Gold Clusters Synthesized via Reactive Layer Assisted Deposition. Cryogenic CO2 Formation on Oxidized Gold Clusters Synthesized via Reactive...

191

Exsolution Enhanced Oil Recovery with Concurrent CO2 Sequestration...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Exsolution Enhanced Oil Recovery with Concurrent CO2 Sequestration. Exsolution Enhanced Oil Recovery with Concurrent CO2 Sequestration. Abstract: A novel EOR method using...

192

Reaction of Water-Saturated Supercritical CO2 with Forsterite...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Water-Saturated Supercritical CO2 with Forsterite: Evidence for Magnesite Formation at Low Temperatures. Reaction of Water-Saturated Supercritical CO2 with Forsterite: Evidence for...

193

Summary Report on CO2 Geologic Sequestration & Water Resources Workshop  

E-Print Network [OSTI]

F Monitoring studies above EOR-CO2 fields Weyburn-MidaleTexas •? Over 30 years of CO2-EOR •? Sampled outside of

Varadharajan, C.

2013-01-01T23:59:59.000Z

194

Aquifer Management for CO2 Sequestration  

E-Print Network [OSTI]

Storage of carbon dioxide is being actively considered for the reduction of green house gases. To make an impact on the environment CO2 should be put away on the scale of gigatonnes per annum. The storage capacity of deep saline aquifers...

Anchliya, Abhishek

2010-07-14T23:59:59.000Z

195

Porous Hexacyanometalates for CO2 capture applications  

SciTech Connect (OSTI)

Prussian blue analogues of M3[Fe(CN)6]2 x H2O (where M=Fe, Mn and Ni) were synthesized, characterized and tested for their gas sorption capabilities. The sorption studies reveal that, these Prussian blue materials preferentially sorb CO2 over N2 and CH4 at low pressure (1bar).

Motkuri, Radha K.; Thallapally, Praveen K.; McGrail, B. Peter

2013-07-30T23:59:59.000Z

196

Projecting human development and CO2 emissions  

E-Print Network [OSTI]

We estimate cumulative CO2 emissions during the period 2000 to 2050 from developed and developing countries based on the empirical relationship between CO2 per capita emissions (due to fossil fuel combustion and cement production) and corresponding HDI. In order to project per capita emissions of individual countries we make three assumptions which are detailed below. First, we use logistic regressions to fit and extrapolate the HDI on a country level as a function of time. This is mainly motivated by the fact that the HDI is bounded between 0 and 1 and that it decelerates as it approaches 1. Second, we employ for individual countries the correlations between CO2 per capita emissions and HDI in order to extrapolate their emissions. This is an ergodic assumption. Third, we let countries with incomplete data records evolve similarly as their close neighbors (in the emissions-HDI plane, see Fig. 1 in the main text) with complete time series of CO2 per capita emissions and HDI. Country-based emissions estimates a...

Costa, Luís; Kropp, Jürgen P

2012-01-01T23:59:59.000Z

197

Northern California CO2 Reduction Project  

SciTech Connect (OSTI)

C6 Resources LLC, a wholly owned subsidiary of Shell Oil Company, worked with the US Department of Energy (DOE) under a Cooperative Agreement to develop the Northern California CO2 Reduction Project. The objective of the Project is to demonstrate the viability of using Carbon Capture and Sequestration (CCS) to reduce existing greenhouse gas emissions from industrial sources on a large-scale. The Project will capture more than 700,000 metric tonnes of CO2 per year, which is currently being vented to the atmosphere from the Shell Martinez Refinery in Contra Costa County. The CO2 will be compressed and dehydrated at the refinery and then transported via pipeline to a sequestration site in a rural area in neighboring Solano County. The CO2 will be sequestered into a deep saline formation (more than two miles underground) and will be monitored to assure secure, long-term containment. The pipeline will be designed to carry as much as 1,400,000 metric tonnes of CO2 per year, so additional capacity will be available to accommodate CO2 captured from other industrial sources. The Project is expected to begin operation in 2015. The Project has two distinct phases. The overall objective of Phase 1 was to develop a fully definitive design basis for the Project. The Cooperative Agreement with the DOE provided cost sharing for Phase 1 and the opportunity to apply for additional DOE cost sharing for Phase 2, comprising the design, construction and operation of the Project. Phase 1 has been completed. DOE co-funding is provided by the American Recovery and Reinvestment Act (ARRA) of 2009. As prescribed by ARRA, the Project will stimulate the local economy by creating manufacturing, transportation, construction, operations, and management jobs while addressing the need to reduce greenhouse gas emissions at an accelerated pace. The Project, which will also assist in meeting the CO2 reduction requirements set forth in California?s Climate Change law, presents a major opportunity for both the environment as well as the region. C6 Resources is conducting the Project in collaboration with federally-funded research centers, such as Lawrence Berkeley National Lab and Lawrence Livermore National Lab. C6 Resources and Shell have identified CCS as one of the critical pathways toward a worldwide goal of providing cleaner energy. C6 Resources, in conjunction with the West Coast Regional Carbon Sequestration Partnership (WESTCARB), has conducted an extensive and ongoing public outreach and CCS education program for local, regional and state-wide stakeholders. As part of a long term relationship, C6 Resources will continue to engage directly with community leaders and residents to ensure public input and transparency. This topical report summarizes the technical work from Phase 1 of the Project in the following areas: ? Surface Facility Preliminary Engineering: summarizes the preliminary engineering work performed for CO2 capture, CO2 compression and dehydration at the refinery, and surface facilities at the sequestration site ? Pipeline Preliminary Engineering: summarizes the pipeline routing study and preliminary engineering design ? Geologic Sequestration: summarizes the work to characterize, model and evaluate the sequestration site ? Monitoring, Verification and Accounting (MVA): summarizes the MVA plan to assure long-term containment of the sequestered CO2

Hymes, Edward

2010-06-16T23:59:59.000Z

198

Simulation of Coupled Processes of Flow, Transport, and Storage of CO2 in Saline Aquifers  

SciTech Connect (OSTI)

This report is the final scientific one for the award DE- FE0000988 entitled “Simulation of Coupled Processes of Flow, Transport, and Storage of CO2 in Saline Aquifers.” The work has been divided into six tasks. In task, “Development of a Three-Phase Non-Isothermal CO2 Flow Module,” we developed a fluid property module for brine-CO2 mixtures designed to handle all possible phase combinations of aqueous phase, sub-critical liquid and gaseous CO2, supercritical CO2, and solid salt. The thermodynamic and thermophysical properties of brine-CO2 mixtures (density, viscosity, and specific enthalpy of fluid phases; partitioning of mass components among the different phases) use the same correlations as an earlier fluid property module that does not distinguish between gaseous and liquid CO2-rich phases. We verified the fluid property module using two leakage scenarios, one that involves CO2 migration up a blind fault and subsequent accumulation in a secondary “parasitic” reservoir at shallower depth, and another investigating leakage of CO2 from a deep storage reservoir along a vertical fault zone. In task, “Development of a Rock Mechanical Module,” we developed a massively parallel reservoir simulator for modeling THM processes in porous media brine aquifers. We derived, from the fundamental equations describing deformation of porous elastic media, a momentum conservation equation relating mean stress, pressure, and temperature, and incorporated it alongside the mass and energy conservation equations from the TOUGH2 formulation, the starting point for the simulator. In addition, rock properties, namely permeability and porosity, are functions of effective stress and other variables that are obtained from the literature. We verified the simulator formulation and numerical implementation using analytical solutions and example problems from the literature. For the former, we matched a one-dimensional consolidation problem and a two-dimensional simulation of the Mandel-Cryer effect. For the latter, we obtained a good match of temperature and gas saturation profiles, and surface uplift, after injection of hot fluid into a model of a caldera structure. In task, “Incorporation of Geochemical Reactions of Selected Important Species,” we developed a novel mathematical model of THMC processes in porous and fractured saline aquifers, simulating geo-chemical reactions associated with CO2 sequestration in saline aquifers. Two computational frameworks, sequentially coupled and fully coupled, were used to simulate the reactions and transport. We verified capabilities of the THMC model to treat complex THMC processes during CO2 sequestration by analytical solutions and we constructed reactive transport models to analyze the THMC process quantitatively. Three of these are 1D reactive transport under chemical equilibrium, a batch reaction model with equilibrium chemical reactions, and a THMC model with CO2 dissolution. In task “Study of Instability in CO2 Dissolution-Diffusion-Convection Processes,” We reviewed literature related to the study of density driven convective flows and on the instability of CO2 dissolution-diffusion-convection processes. We ran simulations that model the density-driven flow instability that would occur during CO2 sequestration. CO2 diffused through the top of the system and dissolved in the aqueous phase there, increasing its density. Density fingers formed along the top boundary, and coalesced into a few prominent ones, causing convective flow that forced the fluid to the system bottom. These simulations were in two and three dimensions. We ran additional simulations of convective mixing with density contrast caused by variable dissolved CO2 concentration in saline water, modeled after laboratory experiments in which supercritical CO2 was circulated in the headspace above a brine saturated packed sand in a pressure vessel. As CO2 dissolved into the upper part of the saturated sand, liquid phase density increases causing instability and setting off convective mixing. We obtained good agreement

Wu, Yu-Shu; Chen, Zizhong; Kazemi, Hossein; Yin, Xiaolong; Pruess, Karsten; Oldenburg, Curt; Winterfeld, Philip; Zhang, Ronglei

2014-09-30T23:59:59.000Z

199

Root-derived CO2 efflux via xylem stream rivals soil CO2 efflux.  

SciTech Connect (OSTI)

• Respiration consumes a large portion of annual gross primary productivity in forest ecosystems and is dominated by belowground metabolism. Here, we present evidence of a previously unaccounted for internal CO2 flux of large magnitude from tree roots through stems. If this pattern is shown to persist over time and in other forests, it suggests that belowground respiration has been grossly underestimated. • Using an experimental Populus deltoides plantation as a model system, we tested the hypothesis that a substantial portion of the CO2 released from belowground autotrophic respiration remains within tree root systems and is transported aboveground through the xylem stream rather than diffusing into the soil atmosphere. • On a daily basis, the amount of CO2 that moved upward from the root system into the stem via the xylem stream (0.26 mol CO2 m?2 d?1) rivalled that which diffused from the soil surface to the atmosphere (0.27 mol CO2 m?2 d?1). We estimated that twice the amount of CO2 derived from belowground autotrophic respiration entered the xylem stream as diffused into the soil environment. • Our observations indicate that belowground autotrophic respiration consumes substantially more carbohydrates than previously recognized and challenge the paradigm that all root-respired CO2 diffuses into the soil atmosphere.

Aubrey, Doug, P.; Teskey, Robert, O.

2009-07-01T23:59:59.000Z

200

IMPLEMENTING A NOVEL CYCLIC CO2 FLOOD IN PALEOZOIC REEFS  

SciTech Connect (OSTI)

Recycled CO2 will be used in this demonstration project to produce bypassed oil from the Silurian Dover 35 pinnacle reef (Otsego County) in the Michigan Basin. We began injecting CO2 in the Dover 35 field into the Salling-Hansen 4-35A well on May 6, 2004. Subsurface characterization is being completed using well log tomography animations and 3D visualizations to map facies distributions and reservoir properties in three reefs, the Belle River Mills, Chester 18, and Dover 35 Fields. The Belle River Mills and Chester 18 fields are being used as type-fields because they have excellent log and/or core data coverage. Amplitude slicing of the log porosity, normalized gamma ray, core permeability, and core porosity curves is showing trends that indicate significant heterogeneity and compartmentalization in these reservoirs associated with the original depositional fabric of the rocks. Digital and hard copy data continues to be compiled for the Niagaran reefs in the Michigan Basin. Technology transfer took place through technical presentations regarding visualization of the heterogeneity of the Niagaran reefs. Oral presentations were given at the Petroleum Technology Transfer Council workshop, Michigan Oil and Gas Association Conference, and Michigan Basin Geological Society meeting. A technical paper was submitted to the Bulletin of the American Association of Petroleum Geologists on the characterization of the Belle River Mills Field.

James R. Wood; W. Quinlan; A. Wylie

2004-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

Synthesis, characterization and performance of single-component CO2-binding organic liquids (CO2BOL) for post combustion CO2 capture  

SciTech Connect (OSTI)

Carbon dioxide (CO2) emission to the atmosphere will increase significantly with the shift to coal powered plants for energy generation. This increase in CO2 emission will contribute to climate change. There is need to capture and sequester large amounts of CO2 emitted from these coal power plants in order to mitigate the environmental effects. Here we report the synthesis, characterization and system performance of multiple third generation CO2 binding organic liquids (CO2BOLs) as a solvent system for post combustion gas capture. Alkanolguanidines and alkanolamidines are single component CO2BOLs that reversibly bind CO2 chemically as liquid zwitterionic amidinium / guanidinium alkylcarbonates. Three different alkanolguanidines and alkanolamidines were synthesized and studied for CO2 capacity and binding energetics. Solvent performance of these three CO2BOLs was evaluated by batch-wise CO2 uptake and release over multiple cycles. Synthesis of CO2BOLs, characterization, CO2 uptake, selectivity towards CO2 as well as solvent tolerance to water will be discussed.

Koech, Phillip K.; Heldebrant, David J.; Rainbolt, James E.; Zheng, Feng; Smurthwaite, Tricia D.

2010-03-31T23:59:59.000Z

202

In Situ Spectrophotometric Determination of pH under Geologic CO2 Sequestration Conditions: Method Development and Application  

SciTech Connect (OSTI)

Injecting massive amounts of CO2 into deep geologic formations will cause a range of coupled thermal, hydrodynamic, mechanical, and chemical changes. A significant perturbation in water-saturated formations is the pH drop in the reservoir fluids due to CO2 dissolution. Knowing the pH under geological CO2 sequestration conditions is important for a better understanding of the short- and long-term risks associated with geological CO2 sequestration and will help in the design of sustainable sequestration projects. Most previous studies on CO2-rock-brine interactions have utilized thermodynamic modeling to estimate the pH. In this work, a spectrophotometric method was developed to determine the in-situ pH in CO2-H2O-NaCl systems in the presence and absence of reservoir rock by observing the spectra of a pH indicator, bromophenol blue, with a UV-visible spectrophotometer. Effects of temperature, pressure, and ionic strength on the pH measurement were evaluated. Measured pH values in CO2-H2O-NaCl systems were compared with several thermodynamic models. Results indicate that bromophenol blue can be used to accurately determine the pH of brine in contact with supercritical CO2 under geologic CO2 sequestration conditions.

Shao, Hongbo; Thompson, Christopher J.; Qafoku, Odeta; Cantrell, Kirk J.

2013-02-25T23:59:59.000Z

203

CO2 as a raw material for chemistry : an  

E-Print Network [OSTI]

intermediates from biomass · CO2 accelerates production of biomass · Ex microalgae biofuel, chemicals, .. · Ex

Canet, Léonie

204

CO2 enrichment increases carbon and nitrogen input from  

E-Print Network [OSTI]

CO2 enrichment increases carbon and nitrogen input from fine roots in a deciduous forest Colleen2 Ecological Society of America, 2008 #12;#12;#12;#12;#12;+ [CO2] #12;+ Net primary production + [CO2] #12;+ Net primary production + [CO2] + C and N storage in biomass #12;+ Net primary production

205

Original article Limitation of photosynthetic activity by CO2  

E-Print Network [OSTI]

Original article Limitation of photosynthetic activity by CO2 availability in the chloroplasts to resistances opposing the CO2 fluxes in the mesophyll of tree leaves. To validate this assertion, values of CO2 CO2 assimilation and respiration rate measurement, and using the known electron requirements (four

Paris-Sud XI, Université de

206

Cost Assessment of CO2 Sequestration by Mineral Carbonation  

E-Print Network [OSTI]

Cost Assessment of CO2 Sequestration by Mineral Carbonation Frank E. Yeboah Tuncel M. Yegulalp Harmohindar Singh Research Associate Professor Professor Center for Energy Research... them carbon dioxide (CO 2 ). This paper assesses the cost of sequestering CO 2 produced by a ZEC power plant using solid sequestration process. INTRODUCTION CO 2 is produced when electrical energy is generated using conventional fossil...

Yeboah, F. E.; Yegulalp, T. M.; Singh, H.

2006-01-01T23:59:59.000Z

207

Natural and industrial analogues for leakage of CO2 from storagereservoirs: identification of features, events, and processes and lessonslearned  

SciTech Connect (OSTI)

The injection and storage of anthropogenic CO2 in deepgeologic formations is a potentially feasible strategy to reduce CO2emissions and atmospheric concentrations. While the purpose of geologiccarbon storage is to trap CO2 underground, CO2 could migrate away fromthe storage site into the shallow subsurface and atmosphere if permeablepathways such as well bores or faults are present. Large-magnitudereleases of CO2 have occurred naturally from geologic reservoirs innumerous volcanic, geothermal, and sedimentary basin settings. Carbondioxide and natural gas have also been released from geologic CO2reservoirs and natural gas storage facilities, respectively, due toinfluences such as well defects and injection/withdrawal processes. Thesesystems serve as natural and industrial analogues for the potentialrelease of CO2 from geologic storage reservoirs and provide importantinformation about the key features, events, and processes (FEPs) that areassociated with releases, as well as the health, safety, andenvironmental consequences of releases and mitigation efforts that can beapplied. We describe a range of natural releases of CO2 and industrialreleases of CO2 and natural gas in the context of these characteristics.Based on this analysis, several key conclusions can be drawn, and lessonscan be learned for geologic carbon storage. First, CO2 can bothaccumulate beneath, and be released from, primary and secondaryreservoirs with capping units located at a wide range of depths. Bothprimary and secondary reservoir entrapments for CO2 should therefore bewell characterized at storage sites. Second, many natural releases of CO2have been correlated with a specific event that triggered the release,such as magmatic fluid intrusion or seismic activity. The potential forprocesses that could cause geomechanical damage to sealing cap rocks andtrigger the release of CO2 from a storage reservoir should be evaluated.Third, unsealed fault and fracture zones may act as fast and directconduits for CO2 flow from depth to the surface. Risk assessment shouldtherefore emphasize determining the potential for and nature of CO2migration along these structures. Fourth, wells that are structurallyunsound have the potential to rapidly release large quantities of CO2 tothe atmosphere. Risk assessment should therefore be focused on thepotential for both active and abandoned wells at storage sites totransport CO2 to the surface, particularly at sites with depleted oil orgas reservoirs where wellsare abundant. Fifth, the style of CO2 releaseat the surface varies widely between and within different leakage sites.In rare circumstances, the release of CO2 can be a self-enhancing and/oreruptive process; this possibility should be assessed in the case of CO2leakage from storage reservoirs. Sixth, the hazard to human health hasbeen small in most cases of large surface releases of CO2. This could bedue to implementation of public education and CO2 monitoring programs;these programs should therefore be employed to minimize potential health,safety, and environmental effects associated with CO2 leakage. Finally,while changes in groundwater chemistry were related to CO2 leakage due toacidification and interaction with host rocks along flow paths, watersremained potable in most cases. Groundwaters should be monitored forchanges that may be associated with storage reservoirleakage.

Lewicki, Jennifer L.; Birkholzer, Jens; Tsang, Chin-Fu

2006-02-28T23:59:59.000Z

208

Long-time evolution of sequestered CO$_2$ in porous media  

E-Print Network [OSTI]

CO$_2$ sequestration in subsurface reservoirs is important for limiting atmospheric CO$_2$ concentrations. However, a complete physical picture able to predict the structure developing within the porous medium is lacking. We investigate theoretically reactive transport in the long-time evolution of carbon in the brine-rock environment. As CO$_2$ is injected into a brine-rock environment, a carbonate-rich region is created amid brine. Within the carbonate-rich region minerals dissolve and migrate from regions of high concentration to low concentration, along with other dissolved carbonate species. This causes mineral precipitation at the interface between the two regions. We argue that precipitation in a small layer reduces diffusivity, and eventually causes mechanical trapping of the CO$_2$. Consequently, only a small fraction of the CO$_2$ is converted to solid mineral; the remainder either dissolves in water or is trapped in its original form. We also study the case of a pure CO$_2$ bubble surrounded by bri...

Cohen, Yossi

2014-01-01T23:59:59.000Z

209

Advanced Technologies for Monitoring CO2 Saturation and Pore Pressure in Geologic Formations: Linking the Chemical and Physical Effects to Elastic and Transport Properties  

SciTech Connect (OSTI)

Ultrasonic P- and S-wave velocities were measured over a range of confining pressures while injecting CO2 and brine into the samples. Pore fluid pressure was also varied and monitored together with porosity during injection. Effective medium models were developed to understand the mechanisms and impact of observed changes and to provide the means for implementation of the interpretation methodologies in the field. Ultrasonic P- and S-wave velocities in carbonate rocks show as much as 20-50% decrease after injection of the reactive CO2-brine mixture; the changes were caused by permanent changes to the rock elastic frame associated with dissolution of mineral. Velocity decreases were observed under both dry and fluid-saturated conditions, and the amount of change was correlated with the initial pore fabrics. Scanning Electron Microscope images of carbonate rock microstructures were taken before and after injection of CO2-rich water. The images reveal enlargement of the pores, dissolution of micrite (micron-scale calcite crystals), and pitting of grain surfaces caused by the fluid- solid chemical reactivity. The magnitude of the changes correlates with the rock microtexture – tight, high surface area samples showed the largest changes in permeability and smallest changes in porosity and elastic stiffness compared to those in rocks with looser texture and larger intergranular pore space. Changes to the pore space also occurred from flow of fine particles with the injected fluid. Carbonates with grain-coating materials, such as residual oil, experienced very little permanent change during injection. In the tight micrite/spar cement component, dissolution is controlled by diffusion: the mass transfer of products and reactants is thus slow and the fluid is expected to be close to thermodynamical equilibrium with the calcite, leading to very little dissolution, or even precipitation. In the microporous rounded micrite and macropores, dissolution is controlled by advection: because of an efficient mass transfer of reactants and products, the fluid remains acidic, far from thermodynamical equilibrium and the dissolution of calcite is important. These conclusions are consistent with the lab observations. Sandstones from the Tuscaloosa formation in Mississippi were also subjected to injection under representative in situ stress and pore pressure conditions. Again, both P- and S-wave velocities decreased with injection. Time-lapse SEM images indicated permanent changes induced in the sandstone microstructure by chamosite dissolution upon injection of CO2-rich brine. After injection, the sandstone showed an overall cleaner microstructure. Two main changes are involved: (a) clay dissolution between grains and at the grain contact and (b) rearrangement of grains due to compaction under pressure Theoretical and empirical models were developed to quantify the elastic changes associated with injection. Permanent changes to the rock frame resulted in seismic velocity-porosity trends that mimic natural diagenetic changes. Hence, when laboratory measurments are not available for a candidate site, these trends can be estimated from depth trends in well logs. New theoretical equations were developed to predict the changes in elastic moduli upon substitution of pore-filling material. These equations reduce to Gassmann’s equations for the case of constant frame properties, low seismic frequencies, and fluid changes in the pore space. The new models also predict the change dissolution or precipitation of mineral, which cannot be described with the conventional Gassmann theory.

Mavko, G.; Vanorio, T.; Vialle, S.; Saxena, N.

2014-03-31T23:59:59.000Z

210

CO2 http://andrew.ucsd.edu/co2qc/ University of California, San Diego  

E-Print Network [OSTI]

by sublimation and the CO2 is transferred into an electronic constant-volume manometer [ECM]. There its pressure of total alkalinity. Marine Chemistry 80, 185­197). Nutrients Nutrient levels were determined using

211

Tagging CO2 to Enable Quantitative Inventories of Geological Carbon Storage  

SciTech Connect (OSTI)

In the wake of concerns about the long term integrity and containment of sub-surface CO2 sequestration reservoirs, many efforts have been made to improve the monitoring, verification, and accounting methods for geo-sequestered CO2. Our project aimed to demonstrate the feasibility of a system designed to tag CO2 with carbon isotope 14C immediately prior to sequestration to a level that is normal on the surface (one part per trillion). Because carbon found at depth is naturally free of 14C, this tag would easily differentiate pre-existing carbon from anthropogenic injected carbon and provide an excellent handle for monitoring its whereabouts in the subsurface. It also creates an excellent handle for adding up anthropogenic carbon inventories. Future inventories in effect count 14C atoms. Accordingly, we have developed a 14C tagging system suitable for use at the part-per-trillion level. This system consists of a gas-exchange apparatus to make disposable cartridges ready for controlled injection into a fast flowing stream of pressurized CO2. We built a high-pressure injection and tagging system, and a 14C detection system. The disposable cartridge and injection system have been successfully demonstrated in the lab with a high-pressure flow reactor, as well as in the field at the CarbFix CO2 sequestration site in Iceland. The laser-based 14C detection system originally conceived has been shown to possess inadequate sensitivity for ambient levels. Alternative methods for detecting 14C, such as saturated cavity absorption ringdown spectroscopy and scintillation counting, may still be suitable. KEYWORDS

Lackner, Klaus; Matter, Juerg; Park, Ah-Hyung; Stute, Martin; Carson, Cantwell; Ji, Yinghuang

2014-06-30T23:59:59.000Z

212

The response of soil CO2 ux to changes in atmospheric CO2, nitrogen supply and plant diversity  

E-Print Network [OSTI]

three major anthropogenic global changes: atmos- pheric carbon dioxide (CO2) concentration, nitrogen (N atmospheric carbon dioxide (CO2) concentra- tions, increasing rates of nitrogen (N) deposition, and decliningThe response of soil CO2 ¯ux to changes in atmospheric CO2, nitrogen supply and plant diversity J O

Minnesota, University of

213

Study of CO2 Mobility Control Using Cross-linked Gel Conformance Control and CO2 Viscosifiers in Heterogeneous Media  

E-Print Network [OSTI]

result, early gas breakthrough has been a very common problem in CO2-related projects, reducing the overall sweep efficiency of CO2 flooding. This research aims at improving the CO2 flood efficiency using cross-linked gel conformance control and CO2...

Cai, Shuzong

2011-10-21T23:59:59.000Z

214

An estimate of monthly global emissions of anthropogenic CO2: Impact on the seasonal cycle of atmospheric CO2  

E-Print Network [OSTI]

An estimate of monthly global emissions of anthropogenic CO2: Impact on the seasonal cycle of anthropogenic CO2 are presented. Approximating the seasonal CO2 emission cycle using a 2-harmonic Fourier series with regions of strong anthropogenic CO2 emissions. Citation: Erickson, D. J., III, R. T. Mills, J. Gregg, T. J

Hoffman, Forrest M.

215

10-MW Supercritical-CO2 Turbine  

Broader source: Energy.gov [DOE]

This fact sheet describes a 10-megawatt supercritical carbon dioxide turbine project, awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The research team, led by NREL, intends to showcase the turbomachinery for a new cycle—the supercritical carbon dioxide (s-CO2) Brayton cycle. The cycle is being optimized and tested at conditions representing dry cooling in desert environments, thereby accurately simulating real-world concentrating solar power system operating conditions.

216

CO2 gas/oil ratio prediction in a multi-component reservoir bycombined seismic and electromagnetic imaging  

SciTech Connect (OSTI)

Crosswell seismic and electromagnetic data sets taken before and during CO2 flooding of an oil reservoir are inverted to produce crosswell images of the change in compressional velocity, shear velocity and electrical conductivity during a CO2 injection pilot study. A rock properties model is developed using measured log porosity, fluid saturations, pressure, temperature, bulk density, sonic velocity and electrical conductivity. The parameters of the rock properties model are found by an L1-norm simplex minimization of predicted and observed compressional velocity and density. A separate minimization using Archie's law provides parameters for modeling the relations between water saturation, porosity and the electrical conductivity. The rock properties model is used to generate relationships between changes in geophysical parameters and changes in reservoir parameters. The electrical conductivity changes are directly mapped to changes in water saturation. The estimated changes in water saturation are used with the observed changes in shear wave velocity to predict changes in reservoir pressure. The estimation of the spatial extent and amount of CO2 relies on first removing the effects of the water saturation and pressure changes from the observed compressional velocity changes, producing a residual compressional velocity change. The residual compressional velocity change is then interpreted in terms of increases in the CO2 /oil ratio. Resulting images of CO2/oil ratio show CO2 rich zones that are well correlated with the location of injection perforations with the size of these zones also correlating to the amount of injected CO2. The images produced by this process are better correlated to the location and amount of injected CO2 than are any of the individual images of change in geophysical parameters.

Hoversten, G.M.; Gritto, Roland; Washbourne, John; Daley, Tom

2002-08-28T23:59:59.000Z

217

CO2 Storage and Enhanced Oil Recovery: Bald Unit Test Site, Mumford Hills Oil Field, Posey County, Indiana  

SciTech Connect (OSTI)

The Midwest Geological Sequestration Consortium (MGSC) carried out a small-scale carbon dioxide (CO2) injection test in a sandstone within the Clore Formation (Mississippian System, Chesterian Series) in order to gauge the large-scale CO2 storage that might be realized from enhanced oil recovery (EOR) of mature Illinois Basin oil fields via miscible liquid CO2 flooding. As part of the MGSC�������¢����������������s Validation Phase (Phase II) studies, the small injection pilot test was conducted at the Bald Unit site within the Mumford Hills Field in Posey County, southwestern Indiana, which was chosen for the project on the basis of site infrastructure and reservoir conditions. Geologic data on the target formation were extensive. Core analyses, porosity and permeability data, and geophysical logs from 40 wells were used to construct cross sections and structure contour and isopach maps in order to characterize and define the reservoir architecture of the target formation. A geocellular model of the reservoir was constructed to improve understanding of CO2 behavior in the subsurface. At the time of site selection, the Field was under secondary recovery through edge-water injection, but the wells selected for the pilot in the Bald Unit had been temporarily shut-in for several years. The most recently shut-in production well, which was surrounded by four nearby shut-in production wells in a five-spot pattern, was converted to CO2 injection for this pilot. Two additional wells outside the immediate five-spot pattern, one of which was an active producer, were instrumented to measure surface temperature and pressure. The CO2 injection period lasted from September 3, 2009, through December 14, 2010, with one three-month interruption caused by cessation of CO2 deliveries due to winter weather. Water was injected into the CO2 injection well during this period. A total of 6,300 tonnes (6,950 tons) of CO2 were injected into the reservoir at rates that generally ranged from 18 to 32 tonnes (20 to 35 tons) per day. The CO2 injection bottomhole pressure generally remained at 8.3 to 9.0 MPag (1,200 to 1,300 psig). The CO2 injection was followed by continued monitoring for nine months during post-CO2 water injection. A monitoring, verification, and accounting (MVA) program was designed to determine the fate of injected CO2. Extensive periodic sampling and analysis of brine, groundwater, and produced gases began before CO2 injection and continued through the monitored waterflood periods. Samples were gathered from production wells and three newly installed groundwater monitoring wells. Samples underwent geochemical and isotopic analyses to reveal any CO2-related changes. Groundwater and kinetic modeling and mineralogical analysis were also employed to better understand the long-term dynamics of CO2 in the reservoir. No CO2 leakage into groundwater was detected, and analysis of brine and gas chemistry made it possible to track the path of plume migration and infer geochemical reactions and trapping of CO2. Cased-hole logging did not detect any CO2 in the near-wellbore region. An increase in CO2 concentration was first detected in February 2010 from the gas present in the carboy during brine sampling; however, there was no appreciable gas volume associated with the detection of CO2. The first indication of elevated gas rates from the commingled gas of the pilot�������¢����������������s production wells occurred in July 2010 and reached a maximum of 0.36 tonnes/day (0.41 tons/day) in September 2010. An estimated 27 tonnes (30 tons) of CO2 were produced at the surface from the gas separator at the tank battery from September 3, 2009, through September 11, 2011, representing 0.5% of the injected CO2. Consequently, 99.5%

Frailey, Scott M.; Krapac, Ivan G.; Damico, James R.; Okwen, Roland T.; McKaskle, Ray W.

2012-03-30T23:59:59.000Z

218

SUBTASK 2.19 – OPERATIONAL FLEXIBILITY OF CO2 TRANSPORT AND STORAGE  

SciTech Connect (OSTI)

Carbon dioxide (CO2) is produced in large quantities during electricity generation and by industrial processes. These CO2 streams vary in terms of both composition and mass flow rate, sometimes substantially. The impact of a varying CO2 stream on pipeline and storage operation is not fully understood in terms of either operability or infrastructure robustness. This study was performed to summarize basic background from the literature on the topic of operational flexibility of CO2 transport and storage, but the primary focus was on compiling real-world lessons learned about flexible operation of CO2 pipelines and storage from both large-scale field demonstrations and commercial operating experience. Modeling and pilot-scale results of research in this area were included to illustrate some of the questions that exist relative to operation of carbon capture and storage (CCS) projects with variable CO2 streams. It is hoped that this report’s real-world findings provide readers with useful information on the topic of transport and storage of variable CO2 streams. The real-world results were obtained from two sources. The first source consisted of five full-scale, commercial transport–storage projects: Sleipner, Snøhvit, In Salah, Weyburn, and Illinois Basin–Decatur. These scenarios were reviewed to determine the information that is available about CO2 stream variability/intermittency on these demonstration-scale projects. The five projects all experienced mass flow variability or an interruption in flow. In each case, pipeline and/or injection engineers were able to accommodate any issues that arose. Significant variability in composition has not been an issue at these five sites. The second source of real- world results was telephone interviews conducted with experts in CO2 pipeline transport, injection, and storage during which commercial anecdotal information was acquired to augment that found during the literature search of the five full-scale projects. The experts represented a range of disciplines and hailed from North America and Europe. Major findings of the study are that compression and transport of CO2 for enhanced oil recovery (EOR) purposes in the United States has shown that impurities are not likely to cause transport problems if CO2 stream composition standards are maintained and pressures are kept at 10.3 MPa or higher. Cyclic, or otherwise intermittent, CO2 supplies historically have not impacted in-field distribution pipeline networks, wellbore integrity, or reservoir conditions. The U.S. EOR industry has demonstrated that it is possible to adapt to variability and intermittency in CO2 supply through flexible operation of the pipeline and geologic storage facility. This CO2 transport and injection experience represents knowledge that can be applied in future CCS projects. A number of gaps in knowledge were identified that may benefit from future research and development, further enhancing the possibility for widespread application of CCS. This project was funded through the Energy & Environmental Research Center–U.S. Department of Energy Joint Program on Research and Development for Fossil Energy-Related Resources Cooperative Agreement No. DE-FC26-08NT43291. Nonfederal funding was provided by the IEA Greenhouse Gas R&D Programme.

Jensen, Melanie; Schlasner, Steven; Sorensen, James; Hamling, John

2014-12-31T23:59:59.000Z

219

Uncertainty analyses of CO2 plume expansion subsequent to wellbore CO2 leakage into aquifers  

SciTech Connect (OSTI)

In this study, we apply an uncertainty quantification (UQ) framework to CO2 sequestration problems. In one scenario, we look at the risk of wellbore leakage of CO2 into a shallow unconfined aquifer in an urban area; in another scenario, we study the effects of reservoir heterogeneity on CO2 migration. We combine various sampling approaches (quasi-Monte Carlo, probabilistic collocation, and adaptive sampling) in order to reduce the number of forward calculations while trying to fully explore the input parameter space and quantify the input uncertainty. The CO2 migration is simulated using the PNNL-developed simulator STOMP-CO2e (the water-salt-CO2 module). For computationally demanding simulations with 3D heterogeneity fields, we combined the framework with a scalable version module, eSTOMP, as the forward modeling simulator. We built response curves and response surfaces of model outputs with respect to input parameters, to look at the individual and combined effects, and identify and rank the significance of the input parameters.

Hou, Zhangshuan; Bacon, Diana H.; Engel, David W.; Lin, Guang; Fang, Yilin; Ren, Huiying; Fang, Zhufeng

2014-08-01T23:59:59.000Z

220

Gulf of Mexico Miocene CO2 Site Characterization Mega Transect  

SciTech Connect (OSTI)

This project characterized the Miocene-age sub-seafloor stratigraphy in the near-offshore portion of the Gulf of Mexico adjacent to the Texas coast. The large number of industrial sources of carbon dioxide (CO2) in coastal counties and the high density of onshore urbanization and environmentally sensitive areas make this offshore region extremely attractive for long-term storage of carbon dioxide emissions from industrial sources (CCS). The study leverages dense existing geologic data from decades of hydrocarbon exploration in and around the study area to characterize the regional geology for suitability and storage capacity. Primary products of the study include: regional static storage capacity estimates, sequestration “leads” and prospects with associated dynamic capacity estimates, experimental studies of CO2-brine-rock interaction, best practices for site characterization, a large-format ‘Atlas’ of sequestration for the study area, and characterization of potential fluid migration pathways for reducing storage risks utilizing novel high-resolution 3D (HR3D) seismic surveys. In addition, three subcontracted studies address source-to-sink matching optimization, offshore well bore management and environmental aspects. The various geologic data and interpretations are integrated and summarized in a series of cross-sections and maps, which represent a primary resource for any near-term commercial deployment of CCS in the area. The regional study characterized and mapped important geologic features (e.g., Clemente-Tomas fault zone, the regionally extensive Marginulina A and Amphistegina B confining systems, etc.) that provided an important context for regional static capacity estimates and specific sequestration prospects of the study. A static capacity estimate of the majority of the Study area (14,467 mi2) was estimated at 86 metric Gigatonnes. While local capacity estimates are likely to be lower due to reservoir-scale characteristics, the offshore Miocene interval is a storage resource of National interest for providing CO2 storage as an atmospheric emissions abatement strategy. The natural petroleum system was used as an analog to infer seal quality and predict possible migration pathways of fluids in an engineered system of anthropogenic CO2 injection and storage. The regional structural features (e.g., Clemente-Tomas fault zone) that exert primary control on the trapping and distribution of Miocene hydrocarbons are expected to perform similarly for CCS. Industrial?scale CCS will require storage capacity utilizing well?documented Miocene hydrocarbon (dominantly depleted gas) fields and their larger structural closures, as well as barren (unproductive, brine?filled) closures. No assessment was made of potential for CO2 utilization for enhanced oil and gas recovery. The use of 3D numerical fluid flow simulations have been used in the study to greatly assist in characterizing the potential storage capacity of a specific reservoir. Due to the complexity of geologic systems (stratigraphic heterogeneity) and inherent limitations on producing a 3D geologic model, these simulations are typically simplified scenarios that explore the influence of model property variability (sensitivity study). A specific site offshore San Luis Pass (southern Galveston Island) was undertaken successfully, indicating stacked storage potential. Downscaling regional capacity estimates to the local scale (and the inverse) has proven challenging, and remains an outstanding gap in capacity assessments. In order to characterize regional seal performance and identify potential brine and CO2 leakage pathways, results from three high-resolution 3D (HR3D) seismic datasets acquired by the study using novel HR3D (P-Cable) acquisition system showed steady and significant improvements in data quality because of improved acquisition and processing technique. Finely detailed faults and stratigraphy in the shallowest 1000 milliseconds (~800 m) of data allowed for the identification and mapping of unconformable surfaces including what is probably

Meckel, Timothy; Trevino, Ramon

2014-09-30T23:59:59.000Z

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221

Effects of elevated CH4 and CO2 on the mobility of metals in near-surface sediments Hingst, M. 1  

E-Print Network [OSTI]

, and injecting it into deep, geologic reservoirs for enhanced hydrocarbon recovery and storage. One concern pathways such as fractures and/or improperly plugged and abandoned wells. We hypothesize that CO2 migration the surface and oxidizes to CO2 (34%) in the vadose zone near a plugged and abandoned well. Four sediment

Texas at Austin, University of

222

A Mechanistic Model for CO2 Sequestration in Tiffany Coal Bed Methane Field  

SciTech Connect (OSTI)

The objective of this project is to develop mechanistic models specific to CO2 sequestration in BP’s Tiffany coal bed methane (CBM) field. In this study, the original field model was modified to match the field performance of a 5-spot pattern in the northern part of the Tiffany Field where BP plans to perform a micro-pilot test. The modified model consists of one high-permeability fast layer sandwiched between two low-permeability slow layers. In this mechanistic model, the fast layer represents well-cleated and fractured coal from all geological layers while the slow layers represent coal with little or no fracture development from the same geological layers. The model successfully matched the performance of the 5-spot pattern during the enhanced recovery period (N2 injection). However, in order to match nitrogen breakthrough times and nitrogen cut the vertical transmissibility between layers had to be set to zero. During gas injection, nitrogen was allowed to enter all three layers, not just the high-permeability fast layer. However, because the permeabilities of the slow layers were low and there is no communication between the fast and the slow layers, most of the injected nitrogen entered the high-permeability fast layer. This suggests that the future gas injection and CO2 sequestration may be restricted to only one third of the total available pay. For future gas injections, the modified model predicted early CO2 breakthrough with high CO2 cut. This suggests that the actual CO2 sequestration capability of the Tiffany Field might not be as high as originally expected. This is a direct consequence of the reduced available pay in the modified model. The modified model also predicted early inert gas (N2 plus CO2) breakthrough and high inert gas cut during future gas injections. If this is confirmed in the pilot test, the high volume of inert gas produced could overwhelm the reprocessing capability resulting in early termination of the project.

Jenn-Tai Liang; Kevin T. Raterman; Eric P. Robertson

2003-05-01T23:59:59.000Z

223

Conversion of CO2 into Commercial Materials Using Carbon Feedstocks  

SciTech Connect (OSTI)

In this project, our research focused on developing reaction chemistry that would support using carbon as a reductant for CO2 utilization that would permit CO2 consumption on a scale that would match or exceed anthropomorphic CO2 generation for energy production from fossil fuels. Armed with the knowledge that reactions attempting to produce compounds with an energy content greater than CO2 would be thermodynamically challenged and/or require significant amounts of energy, we developed a potential process that utilized a solid carbon source and recycled the carbon to effectively provide infinite time for the carbon to react. During testing of different carbon sources, we found a wide range of reaction rates. Biomass-derived samples had the most reactivity and coals and petcoke had the lowest. Because we had anticipated this challenge, we recognized that a catalyst would be necessary to improve reaction rates and conversion. From the data analysis of carbon samples, we recognized that alkali metals improved the reaction rate. Through parametric testing of catalyst formulations we were able to increase the reaction rate with petcoke by a factor of >70. Our efforts to identify the reaction mechanism to assist in improving the catalyst formulation demonstrated that the catalyst was catalyzing the extraction of oxygen from CO2 and using this extracted oxygen to oxidize carbon. This was a significant discovery in that if we could modify the catalyst formulation to permit controlled the oxidation, we would have a very power selective oxidation process. With selective oxidation, CO2 utilization could be effective used as one of the process steps in making many of the large volume commodity chemicals that support our modern lifestyles. The key challenges for incorporating these functionalities into the catalyst formulation were to make the oxidation selective and lower the temperature required for catalytic activity. We identified four catalyst families that had the potential to meet these challenges. Initial screening of the catalyst families did show that the reduction/oxidation activity did occur at lower temperatures and that these catalysts were able to cause carbon chain growth as well as C—C cleavage. A preliminary techno-economic feasibility of using petcoke/catalyst to produce a CO-rich syngas product was completed and showed significant economic promise. Testing of the different catalyst families demonstrated that Catalyst A was able to stably produce 5 sccm of ethylene/gram of catalyst at 900°C for one hour. For dry methane reforming, our Catalyst 4 was able to achieve production rates of > 10 sccm of CO and > 3 sccm of H2 per gram of catalyst at 600°C and 350 psig. Based on these developments, the potential for CO2 utilization in the production of large volume commodity chemicals is very promising.

Shen, Jian-Ping; Peters, Jonathan; Lail, Marty; Mobley, Paul; Turk, Brian

2014-05-31T23:59:59.000Z

224

Numerical Modeling Studies of The Dissolution-Diffusion-Convection ProcessDuring CO2 Storage in Saline Aquifers  

SciTech Connect (OSTI)

For purposes of geologic storage, CO2 would be injected into saline formations at supercritical temperature and pressure conditions, and would form a separate phase that is immiscible with the aqueous phase (brine). At typical subsurface temperature and pressure conditions, supercritical CO2 (scCO2) has lower density than the aqueous phase and would experience an upward buoyancy force. Accordingly, the CO2 is expected to accumulate beneath the caprock at the top of the permeable interval, and could escape from the storage formation wherever (sub-)vertical pathways are available, such as fractures or faults through the caprock, or improperly abandoned wells. Over time, an increasing fraction of CO2 may dissolve in the aqueous phase, and eventually some of the aqueous CO2 may react with rock minerals to form poorly soluble carbonates. Dissolution into the aqueous phase and eventual sequestration as carbonates are highly desirable processes as they would increase permanence and security of storage. Dissolution of CO2 will establish phase equilibrium locally between the overlying CO2 plume and the aqueous phase beneath. If the aqueous phase were immobile, CO2 dissolution would be limited by the rate at which molecular diffusion can remove dissolved CO2 from the interface between CO2-rich and aqueous phases. This is a slow process. However, dissolution of CO2 is accompanied by a small increase in the density of the aqueous phase, creating a negative buoyancy force that can give rise to downward convection of CO2-rich brine, which in turn can greatly accelerate CO2 dissolution. This study explores the process of dissolution-diffusion-convection (DDC), using high-resolution numerical simulation. We find that geometric features of convection patterns are very sensitive to small changes in problem specifications, reflecting self-enhancing feedbacks and the chaotic nature of the process. Total CO2 dissolution rates on the other hand are found to be quite robust against modest changes in problem parameters, and are essentially constant as long as no dissolved CO2 reaches the lower boundary of the system.

Pruess, Karsten; Zhang, Keni

2008-11-17T23:59:59.000Z

225

PLAINS CO2 REDUCTION (PCOR) PARTNERSHIP  

SciTech Connect (OSTI)

During the period of October 1, 2003, through September 30, 2005, the Plains CO2 Reduction (PCOR) Partnership, identified geologic and terrestrial candidates for near-term practical and environmentally sound carbon dioxide (CO2) sequestration demonstrations in the heartland of North America. The PCOR Partnership region covered nine states and three Canadian provinces. The validation test candidates were further vetted to ensure that they represented projects with (1) commercial potential and (2) a mix that would support future projects both dependent and independent of CO2 monetization. This report uses the findings contained in the PCOR Partnership's two dozen topical reports and half-dozen fact sheets as well as the capabilities of its geographic information system-based Decision Support System to provide a concise picture of the sequestration potential for both terrestrial and geologic sequestration in the PCOR Partnership region based on assessments of sources, sinks, regulations, deployment issues, transportation, and capture and separation. The report also includes concise action plans for deployment and public education and outreach as well as a brief overview of the structure, development, and capabilities of the PCOR Partnership. The PCOR Partnership is one of seven regional partnerships under Phase I of the U.S. Department of Energy National Energy Technology Laboratory's Regional Carbon Sequestration Partnership program. The PCOR Partnership, comprising 49 public and private sector members, is led by the Energy & Environmental Research Center at the University of North Dakota. The international PCOR Partnership region includes the Canadian provinces of Alberta, Saskatchewan, and Manitoba and the states of Montana (part), Wyoming (part), North Dakota, South Dakota, Nebraska, Missouri, Iowa, Minnesota, and Wisconsin.

Edward N. Steadman; Daniel J. Daly; Lynette L. de Silva; John A. Harju; Melanie D. Jensen; Erin M. O'Leary; Wesley D. Peck; Steven A. Smith; James A. Sorensen

2006-01-01T23:59:59.000Z

226

CO2-Based Glue - Energy Innovation Portal  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites Proposed Route BTRIC CNMSMethanol Steam Reforming.modelCO2

227

co2 capture | netl.doe.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered energy consumption byAbout SRNL HomeYoungClean Energy Projects SolicitationscivilCO2

228

Sandia National Laboratories: lower CO2 emission  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1developmentturbine blade manufacturinglife-cycleionlow-temperature dieselCO2

229

CO2 Conference Presentation | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 2015 <Ones |Laboratory, June 2011TO0CNG and3, 2015CO2

230

CO2 Heat Pump Water Heater  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 2015 <Ones |Laboratory, June 2011TO0CNG and3, 2015CO2CO

231

Sandia National Laboratories: S-CO2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -theErik SpoerkeSolarCybernetics: DynamicCybernetics: WeighBlade SensorsRozaS-CO2

232

Developing a Comprehensive Risk Assessment Framework for Geological Storage CO2  

SciTech Connect (OSTI)

The operational risks for CCS projects include: risks of capturing, compressing, transporting and injecting CO?; risks of well blowouts; risk that CO? will leak into shallow aquifers and contaminate potable water; and risk that sequestered CO? will leak into the atmosphere. This report examines these risks by using information on the risks associated with analogue activities such as CO2 based enhanced oil recovery (CO2-EOR), natural gas storage and acid gas disposal. We have developed a new analysis of pipeline risk based on Bayesian statistical analysis. Bayesian theory probabilities may describe states of partial knowledge, even perhaps those related to non-repeatable events. The Bayesian approach enables both utilizing existing data and at the same time having the capability to adsorb new information thus to lower uncertainty in our understanding of complex systems. Incident rates for both natural gas and CO2 pipelines have been widely used in papers and reports on risk of CO2 pipelines as proxies for the individual risk created by such pipelines. Published risk studies of CO2 pipelines suggest that the individual risk associated with CO2 pipelines is between 10-3 and 10-4, which reflects risk levels approaching those of mountain climbing, which many would find unacceptably high. This report concludes, based on a careful analysis of natural gas pipeline failures, suggests that the individual risk of CO2 pipelines is likely in the range of 10-6 to 10-7, a risk range considered in the acceptable to negligible range in most countries. If, as is commonly thought, pipelines represent the highest risk component of CCS outside of the capture plant, then this conclusion suggests that most (if not all) previous quantitative- risk assessments of components of CCS may be orders of magnitude to high. The potential lethality of unexpected CO2 releases from pipelines or wells are arguably the highest risk aspects of CO2 enhanced oil recovery (CO2-EOR), carbon capture, and storage (CCS). Assertions in the CCS literature, that CO2 levels of 10% for ten minutes, or 20 to 30% for a few minutes are lethal to humans, are not supported by the available evidence. The results of published experiments with animals exposed to CO2, from mice to monkeys, at both normal and depleted oxygen levels, suggest that lethal levels of CO2 toxicity are in the range 50 to 60%. These experiments demonstrate that CO2 does not kill by asphyxia, but rather is toxic at high concentrations. It is concluded that quantitative risk assessments of CCS have overestimated the risk of fatalities by using values of lethality a factor two to six lower than the values estimated in this paper. In many dispersion models of CO2 releases from pipelines, no fatalities would be predicted if appropriate levels of lethality for CO2 had been used in the analysis.

Duncan, Ian

2014-08-31T23:59:59.000Z

233

CO2 capture processes in power plants - Le captage du CO2 dans les centrales thermiques  

E-Print Network [OSTI]

This review is devoted to assess and compare various processes aiming at recover CO2 from power plants fed with natural gas (NGCC) and pulverized coal (PC). These processes are post combustion CO2 capture using chemical solvents, natural gas reforming for pre-combustion capture and oxy-fuel combustion with cryogenic recovery of CO2. These processes were evaluated to give some clues for choosing the best option for each type of power plant. The comparison of these various concepts suggests that, in the short and medium term, chemical absorption is the most interesting process for NGCC power plants. For CP power plants, oxy-combustion can be a very interesting option, as well as post-combustion capture by chemical solvents.

Chakib Bouallou

2010-08-12T23:59:59.000Z

234

Summary Report on CO2 Geologic Sequestration & Water Resources Workshop  

E-Print Network [OSTI]

projects based CO 2 enhanced oil recovery in the US. Energydeveloped for CO 2 -enhanced oil recovery. In: 16th SPE/DOEpurposes such as enhanced oil recovery (EOR) and enhanced

Varadharajan, C.

2013-01-01T23:59:59.000Z

235

Chemical Impact of Elevated CO2on Geothermal Energy Production...  

Broader source: Energy.gov (indexed) [DOE]

Chemical Impact of Elevated CO2on Geothermal Energy Production Chemical Impact of Elevated CO2on Geothermal Energy Production This is a two phase project to assess the geochemical...

236

Formation Damage due to CO2 Sequestration in Saline Aquifers  

E-Print Network [OSTI]

Carbon dioxide (CO2) sequestration is defined as the removal of gas that would be emitted into the atmosphere and its subsequent storage in a safe, sound place. CO2 sequestration in underground formations is currently being considered to reduce...

Mohamed, Ibrahim Mohamed 1984-

2012-10-25T23:59:59.000Z

237

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate First Quarterly Report 2007 Quarterly Progress of this work is to improve the process for CO2 capture by alkanolamine absorption/stripping by developing

Rochelle, Gary T.

238

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate Fourth Quarterly Report 2006 Quarterly Progress of this work is to improve the process for CO2 capture by alkanolamine absorption/stripping by developing

Rochelle, Gary T.

239

Insights into Silicate Carbonation Processes in Water-Bearing Supercritical CO2 Fluids  

SciTech Connect (OSTI)

Long-term geologic storage of carbon dioxide (CO2) is considered an integral part to moderating CO2 concentrations in the atmosphere and subsequently minimizing effects of global climate change. Although subsurface injection of CO2 is common place in certain industries, deployment at the scale required for emission reduction is unprecedented and therefore requires a high degree of predictability. Accurately modeling geochemical processes in the subsurface requires experimental derived data for mineral reactions occurring between the CO2, water, and rocks. Most work in this area has focused on aqueous-dominated systems in which dissolved CO2 reacts to form crystalline carbonate minerals. Comparatively little laboratory research has been conducted on reactions occurring between minerals in the host rock and the wet supercritical fluid phase. In this work, we studied the carbonation of wollastonite [CaSiO3] exposed to variably hydrated supercritical CO2 (scCO2) at a range of temperatures (50, 55 and 70 °C) and pressures (90,120 and 160 bar) that simulate conditions in geologic repositories. Mineral transformation reactions were followed by three novel in situ high pressure techniques, including x-ray diffraction that tracked the rate and extents of wollastonite conversion to calcite. Increased dissolved water concentrations in the supercritical CO2 resulted in increased silicate carbonation approaching ~50 wt. %. Development of thin water films on the mineral surface were directly observed with infrared spectroscopy and determined to be critical for facilitating carbonation processes. Even in extreme low water conditions, magic angle spinning nuclear magnetic resonance detected formation of Q3 [Si(OSi)3OH] and Q4 [Si(OSi)4] amorphous silica species. Unlike the thick (<10 ?m) passivating silica layers observed in the fully water saturated scCO2 experiments, images obtained from a focused ion beam sectioned sample indicted these coatings were chemically wollastonite but structurally amorphous. In addition, evidence of an intermediate hydrated amorphous calcium carbonate forming under these conditions further emphasize the importance of understanding geochemical processes occurring in water bearing scCO2 fluids.

Miller, Quin RS; Thompson, Christopher J.; Loring, John S.; Windisch, Charles F.; Bowden, Mark E.; Hoyt, David W.; Hu, Jian Z.; Arey, Bruce W.; Rosso, Kevin M.; Schaef, Herbert T.

2013-07-01T23:59:59.000Z

240

CHARACTERIZATION OF MIXED CO2-TBPB HYDRATE FOR REFRIGERATION APPLICATIONS  

E-Print Network [OSTI]

in a dynamic loop and an Ostwald-de Waele model was obtained. Keywords: CO2, TBPB, mixed hydrates, solubility

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "initiates co2 injection" 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

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

Marchetti, C. , On geoengineering and the CO2 prob- lem.to the location of geoengineering activities seems to be

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

242

CO2 stabilization, climate change and the terrestrial carbon sink  

E-Print Network [OSTI]

CO2 stabilization, climate change and the terrestrial carbon sink A N D R E W W H I T E , * M E L V, Hybrid v4.1, with a subdaily timestep, was driven by increasing CO2 and transient climate output from scenarios were used: (i) IS92a, giving 790 ppm CO2 by 2100, (ii) CO2 stabilization at 750 ppm by 2225

White, Andrew

243

Gravity monitoring of CO2 movement during sequestration: Model studies  

E-Print Network [OSTI]

combined CO 2 enhanced oil recovery (EOR) and sequestrationMODEL The enhanced oil recovery (EOR)/sequestration

Gasperikova, E.

2008-01-01T23:59:59.000Z

244

electroseismic monitoring of co2 sequestration: a finite element ...  

E-Print Network [OSTI]

Keywords: Electroseismic Modeling, Poroelasticity, CO2 sequestration, Finite element methods. 2000 AMS ... carbon dioxide emissisons into the atmosphere.

Fabio Zyserman

245

Simulation of CO2 Sequestration and Enhanced Coalbed Methane Production in Multiple Appalachian Basin Coal Seams  

SciTech Connect (OSTI)

A DOE-funded field injection of carbon dioxide is to be performed in an Appalachian Basin coal seam by CONSOL Energy and CNX Gas later this year. A preliminary analysis of the migration of CO2 within the Upper Freeport coal seam and the resulting ground movements has been performed on the basis of assumed material and geometric parameters. Preliminary results show that ground movements at the field site may be in a range that are measurable by tiltmeter technology.

Bromhal, G.S.; Siriwardane, H.J.; Gondle, R.K.

2007-11-01T23:59:59.000Z

246

CO2 levels during the greenhouse of the Paleocene  

E-Print Network [OSTI]

to reconstruct CO2 concentrations during this period of global warming 56 million years ago. 56 million year oldCO2 levels during the greenhouse of the Paleocene Eocene Thermal Maximum (PETM) Francesca A. Mc, Boulder #12;Estimating paleopCO2 0 5 10 15 20 25 30 0 500 1000 1500 2000 2500 3000 Meter Level, start

Shull, Kenneth R.

247

results and benefits... Birmingham Cutting your CO2  

E-Print Network [OSTI]

results and benefits... Birmingham Cutting your CO2 Birmingham City Council July 2007 c a s e s t u of the BirminghamCutting CO2 campaign, news items, display materials etc. · Advising on pledge gathering materials system was launched in July 2007 as part of the `Birmingham Cutting Your CO2' campaign. By the end

Everest, Graham R

248

Central serotonin neurons are required for arousal to CO2  

E-Print Network [OSTI]

Central serotonin neurons are required for arousal to CO2 Gordon F. Buchanana,b,1 and George B neurons are stimulated by CO2, and sero- tonin activates thalamocortical networks, we hypothesized any arousal response to inhalation of 10% CO2 (with 21% O2 in balance N2) but had normal arousal

249

A Numerical Investigation of Wettability Alteration during Immiscible CO2  

E-Print Network [OSTI]

A Numerical Investigation of Wettability Alteration during Immiscible CO2 Flooding Process, April 2012 #12;2 Table of Contest Abstract 3 Introduction 3 Literature Review 5 CO2 Flooding 7 New alteration during CO2 flooding. However, limited research on numerical and/or analytical modeling

Hossain, M. Enamul

250

Original article Interactive effects of elevated CO2, O3,  

E-Print Network [OSTI]

Original article Interactive effects of elevated CO2, O3, and soil water deficit on spring wheat of elevated carbon dioxide (CO2), ozone (O3), and soil water deficit on spring wheat (Triticum aestivum L. cv consisting of two O3levels (ambient and 1.5-times ambient) in combination with two CO2levels (ambient

Paris-Sud XI, Université de

251

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate First Quarterly Report 2006 Quarterly Progress the process for CO2 capture by alkanolamine absorption/stripping by developing an alternative solvent, aqueous.................................................................................................................................... 8 Task 1 ­ Modeling Performance of Absorption/Stripping of CO2 with Aqueous K2CO3 Promoted

Rochelle, Gary T.

252

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate Third Quarterly Report 2006 Quarterly Progress of this work is to improve the process for CO2 capture by alkanolamine absorption/stripping by developing...................................................................................................................................11 Task 1 ­ Modeling Performance of Absorption/Stripping of CO2 with Aqueous K2CO3 Promoted

Rochelle, Gary T.

253

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate Second Quarterly Report 2006 Quarterly Progress of this work is to improve the process for CO2 capture by alkanolamine absorption/stripping by developing.................................................................................................................................. 10 Task 1 ­ Modeling Performance of Absorption/Stripping of CO2 with Aqueous K2CO3 Promoted

Rochelle, Gary T.

254

CO2 Emissions Mitigation and Technological Advance: An  

E-Print Network [OSTI]

PNNL-18075 CO2 Emissions Mitigation and Technological Advance: An Updated Analysis of Advanced/2003) #12;PNNL-18075 CO2 Emissions Mitigation and Technological Advance: An Analysis of Advanced Technology of atmospheric CO2 concentrations at 450 parts per million by volume (ppmv) and 550 ppmv in MiniCAM. Each

255

Reduction of CO2 emissions and utilization of slag  

E-Print Network [OSTI]

Reduction of CO2 emissions and utilization of slag products by producing calcium-based products-free calcium-based ma- terial, such as steelmaking slags, significant re- ductions in CO2 emissions may of the CO2 emissions reduction achieved. However, the pu- rity and crystal structure of the PCC produced

Zevenhoven, Ron

256

Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in India's Cement Industry  

E-Print Network [OSTI]

Model Inputs Emissions Factors CO2 Emission factor for grid tonne CO2/MWh)  CO2 Emission factor for fuel  (tonne CO2/TJ)Improvements and CO2 Emission Reduction Potentials in the

Morrow III, William R.

2014-01-01T23:59:59.000Z

257

Directed Technical Change and the Adoption of CO2 Abatement Technology: The Case of CO2 Capture and Storage  

E-Print Network [OSTI]

This paper studies the cost effectiveness of combining traditional environmental policy, such as CO2 trading schemes, and technology policy that has aims of reducing the cost and speeding the adoption of CO2 abatement ...

Otto, Vincent M.

258

Rate Determination of the CO2* Chemiluminescence Reaction CO + O + M = CO2* + M  

E-Print Network [OSTI]

flame characteristics, such as fuel consumption rate, heat release rate, and H-atom concentration. In 2002, Kim et al. [2] made detailed spectral measurements in SI, HCCI, and SCCI engines from various excited state species and determined that CO2...

Kopp, Madeleine Marissa, 1987-

2012-10-15T23:59:59.000Z

259

Predicting CO2-water interfacial tension under pressure and temperature conditions of geologic CO2 storage  

E-Print Network [OSTI]

within ± 15% of nominal P. EPM2-SPC/E DZ- SPC/E PPL-SPC/EEPM2- TIP4P2005 PPL- TIP4P2005 Predicted (f) a P ? CO2 2SE ?to C and O atoms (Table 1). The PPL model (In Het Panhuis et

Nielsen, L.C.

2013-01-01T23:59:59.000Z

260

How secure is CO2 storage? Leakage mechanisms of natural CO2 reservoirs  

E-Print Network [OSTI]

technology available to reduce greenhouse gas emissions from large point sources such as power plants and the burial of organic rich rocks such as coal seams.2 We have compiled the first global dataset on natural CO ­ but not necessarily leaking. Figure 4: Diagram showing the state of CO2 in the studied reservoirs. Supercritical

Note: This page contains sample records for the topic "initiates co2 injection" 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

Research Project on CO2 Geological Storage and Groundwater Resources: Water Quality Effects Caused by CO2 Intrusion into Shallow Groundwater  

E-Print Network [OSTI]

Changes in Response to CO2 Leakage from Deep Geologicalstudy mineral trapping for CO2 disposal in deep arenaceousconstituents as function of P(CO2)? function of P(CO2)? – –

Birkholzer, Jens

2008-01-01T23:59:59.000Z

262

Monitoring CO 2 sequestration into deep saline aquifer and associated salt intrusion using coupled multiphase flow modeling and time lapse electrical resistivity tomography  

SciTech Connect (OSTI)

Successful geological storage and sequestration of carbon dioxide (CO2) require efficient monitoring of the migration of CO2 plume during and after large-scale injection in order to verify the containment of the injected CO2 within the target formation and to evaluate potential leakage risk. Field studies have shown that surface and cross-borehole electrical resistivity tomography (ERT) can be a useful tool in imaging and characterizing solute transport in heterogeneous subsurface. In this synthetic study, we have coupled a 3-D multiphase flow model with a parallel 3-D time-lapse ERT inversion code to explore the feasibility of using time-lapse ERT for simultaneously monitoring the migration of CO2 plume in deep saline formation and potential brine intrusion into shallow fresh water aquifer. Direct comparisons of the inverted CO2 plumes resulting from ERT with multiphase flow simulation results indicate the ERT could be used to delineate the migration of CO2 plume. Detailed comparisons on the locations, sizes and shapes of CO2 plume and intruded brine plumes suggest that ERT inversion tends to underestimate the area review of the CO2 plume, but overestimate the thickness and total volume of the CO2 plume. The total volume of intruded brine plumes is overestimated as well. However, all discrepancies remain within reasonable ranges. Our study suggests that time-lapse ERT is a useful monitoring tool in characterizing the movement of injected CO2 into deep saline aquifer and detecting potential brine intrusion under large-scale field injection conditions.

Chuan Lu; CHI Zhang; Hai Hanag; Timothy C. Johnson

2014-04-01T23:59:59.000Z

263

Selection of coals of different maturities for CO2 Storage by modelling of CH4 and CO2 adsorption isotherms  

E-Print Network [OSTI]

of this study is to compare and model pure gas sorption isotherms (CO2 and CH4) for well-characterised coals of different maturities to determine the most suitable coal for CO2 storage. Carbon dioxide and methane; Coals; Methane and carbon dioxide adsorption; Modelling isotherms 1. Introduction CO2 is a greenhouse

Paris-Sud XI, Université de

264

Visualizing the Surface Infrastructure Used to Move 2 MtCO2/year from the Dakota Gasification Company to the Weyburn CO2 Enhanced Oil Recovery Project: Version of July 1, 2009  

SciTech Connect (OSTI)

Google Earth Pro has been employed to create an interactive flyover of the world’s largest operational carbon dioxide capture and storage project. The visualization focuses on the transport and storage of 2 MtCO2/year which is captured from the Dakota Gasification Facility (Beula, North Dakota) and transported 205 miles and injected into the Weyburn oil field in Southeastern Saskatchewan.

Dooley, James J.

2009-07-09T23:59:59.000Z

265

Evaluating impacts of CO2 gas intrusion into a confined sandstone aquifer: Experimental results  

SciTech Connect (OSTI)

Deep subsurface storage and sequestration of CO2 has been identified as a potential mitigation technique for rising atmospheric CO2 concentrations. Sequestered CO2 represents a potential risk to overlying aquifers if the CO2 leaks from the deep storage reservoir. Experimental and modeling work is required to evaluate potential risks to groundwater quality and develop a systematic understanding of how CO2 leakage may cause important changes in aquifer chemistry and mineralogy by promoting dissolution/precipitation, adsorption/desorption, and redox reactions. Sediments from the High Plains aquifer in Kansas, United States, were used in this investigation, which is part of the National Risk Assessment Partnership Program sponsored by the US Department of Energy. This aquifer was selected to be representative of consolidated sand and gravel/sandstone aquifers overlying potential CO2 sequestration repositories within the continental US. In this paper, we present results from batch experiments conducted at room temperature and atmospheric pressure with four High Plains aquifer sediments. Batch experiments simulate sudden, fast, and short-lived releases of the CO2 gas as would occur in the case of well failure during injection. Time-dependent release of major, minor, and trace elements were determined by analyzing the contacting solutions. Characterization studies demonstrated that the High Plains aquifer sediments were abundant in quartz and feldspars, and contained about 15 to 20 wt% montmorillonite and up to 5 wt% micas. Some of the High Plains aquifer sediments contained no calcite, while others had up to about 7 wt% calcite. The strong acid extraction tests confirmed that in addition to the usual elements present in most soils, rocks, and sediments, the High Plains aquifer sediments had appreciable amounts of As, Cd, Pb, Cu, and occasionally Zn, which potentially may be mobilized from the solid to the aqueous phase during or after exposure to CO2. However, the results from the batch experiments showed that the High Plains sediments mobilized only low concentrations of trace elements (potential contaminants), which were detected occasionally in the aqueous phase during these experiments. Importantly, these occurrences were more frequent in the calcite-free sediment. Results from these investigations provide useful information to support site selection, risk assessment, and public education efforts associated with geological CO2 storage and sequestration.

Qafoku, Nikolla; Lawter, Amanda R.; Shao, Hongbo; Wang, Guohui; Brown, Christopher F.

2014-12-31T23:59:59.000Z

266

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

SciTech Connect (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

267

MANAGING THE RISKS IN THE VADOSE ZONE ASSOCIATED WITH THE LEAKAGE OF CO2 FROM A DEEP GEOLOGICAL STORAGE  

E-Print Network [OSTI]

-term storage (depleted natural gas and oil fields, deep aquifers and unmineable coal seams). CO2 is injected correspond to a storage reservoir depth of about 800 m (Law et al., 1996). Since the 1990's, the CCS" in case of "abnormal behaviour" of the reservoir has been outlined by the European directive on geological

Paris-Sud XI, Université de

268

Characterization and Simulation of ECBM: History Matching of Forecasting CO2 Sequestration in Marshal County, West Virginia.  

E-Print Network [OSTI]

. Bromhal, National Energy Technology Laboratory Copyright 2010, Society of Petroleum Engineers This paper injection. Introduction Sustain economic growth by providing sufficient energy and controlling the CO2 emissions as byproduct of producing Energy from fossil fuels is one of the most challenging tasks

Mohaghegh, Shahab

269

IMPROVING CO2 EFFICIENCY FOR RECOVERING OIL IN HETEROGENEOUS RESERVOIRS  

SciTech Connect (OSTI)

A three-year contract for the project, DOE Contract No. DE-FG26-01BC15364, ''Improving CO{sub 2} Efficiency for Recovering Oil in Heterogeneous Reservoirs,'' was awarded and started on September 28, 2001. This project examines three major areas in which CO2 flooding can be improved: fluid and matrix interactions, conformance control/sweep efficiency, and reservoir simulation for improved oil recovery. This report discusses the activity during the six-month period covering October 1, 2002 through March 31, 2003 that covers the first and second fiscal quarters of the project's second year. During these two quarters of the project we have been working in several areas: reservoir fluid/rock interactions and their relationships to changing injectivity, and surfactant adsorption on quarried core and pure component granules, foam stability, and high flow rate effects. We also had a very productive project review in Midland, Texas. A paper on CO{sub 2}-brine-reservoir rock interaction was presented and included in the proceedings of the SPE International Symposium on Oilfield Chemistry, Houston, 5-8 February, 2003. Papers have been accepted for the Second Annual Conference on Carbon Sequestration in Alexandria, VA in May, the Society of Core Analysis meeting in Pau, France in September, and two papers for the SPE Annual Meeting in Denver, CO in October.

Reid B. Grigg; Robert K. Svec; Zheng-Wen Zeng; Liu Yi; Baojun Bai

2003-05-01T23:59:59.000Z

270

Supersonic Technology for CO2 Capture: A High Efficiency Inertial CO2 Extraction System  

SciTech Connect (OSTI)

IMPACCT Project: Researchers at ATK and ACENT Laboratories are developing a device that relies on aerospace wind-tunnel technologies to turn CO2 into a condensed solid for collection and capture. ATK’s design incorporates a special nozzle that converges and diverges to expand flue gas, thereby cooling it off and turning the CO2 into solid particles which are removed from the system by a cyclonic separator. This technology is mechanically simple, contains no moving parts and generates no chemical waste, making it inexpensive to construct and operate, readily scalable, and easily integrated into existing facilities. The increase in the cost to coal-fired power plants associated with introduction of this system would be 50% less than current technologies.

None

2010-07-01T23:59:59.000Z

271

Improved Efficiency of Miscible CO2 Floods and Enhanced Prospects for CO2 Flooding Heterogeneous Reservoirs  

SciTech Connect (OSTI)

The goal of this project is to improve the efficiency of miscible CO2 floods and enhance the prospects for flooding heterogeneous reservoirs. This report provides results of the second year of the three-year project that will be exploring three principles: (1) Fluid and matrix interactions (understanding the problems). (2) Conformance control/sweep efficiency (solving the problems. 3) Reservoir simulation for improved oil recovery (predicting results).

Grigg, Reid B.; Schechter, David S.

1999-10-15T23:59:59.000Z

272

Estimation of CO2 Emissions from China's Cement Production: Methodologies and Uncertainties  

E-Print Network [OSTI]

L. , 2006. Discussion of CO2 emission reduction in ChineseFurther discussion of CO2 emission reduction in Chinesecalculation method of CO2 emissions of cement production.

Ke, Jing

2014-01-01T23:59:59.000Z

273

Cimpor inventa nova frmula para reduzir pegada de CO2  

E-Print Network [OSTI]

Cimpor inventa nova fórmula para reduzir pegada de CO2 CIMENTO. A Cimpor descobriu uma nova fórmula para produzir ci- mento que lhe permitirá reduzir a pegada de CO 2 em 25%. Segundo as contas da as fábricas do grupo, seriam emitidos menos quatro milhões de toneladas de CO 2 por ano, o que permitiria uma

Instituto de Sistemas e Robotica

274

Aquatic primary production in a high-CO2 world  

E-Print Network [OSTI]

Aquatic primary production in a high-CO2 world Etienne Low-De´carie, Gregor F. Fussmann, and Graham-Penfield, Montreal, QC, H3A 1B1, Canada Here, we provide a review of the direct effect of increas- ing CO2 on aquatic: the assessment of theories about limitation of productivity and the integration of CO2 into the co

Fussman, Gregor

275

The Power to Reduce CO2 Emissions: the Full Portfolio  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

energy- efficient CO 2 capture for pulverized coal and integrated gasification combined cycle plants. Both nuclear and advanced coal with CCS technologies are...

276

R & D Supercritiacl CO2/ Rock Chemicals Interactions  

Broader source: Energy.gov (indexed) [DOE]

model that couples chemical reactions of mineral dissolution precipitation with spatial and temporal flow variations in CO 2 brinerock systems Principal Investigator:...

277

Enhanced Geothermal Systems (EGS) with CO2as Heat Transmission...  

Broader source: Energy.gov (indexed) [DOE]

Program eere.energy.gov * The project started in FY10 * Collaboration between LBNL (Pruess) and INL (Redden) - Berkeley leads modeling, CO 2 -brine flow and heat...

278

co2-use-reuse | netl.doe.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in addition to their conventional energy balances and life cycles. Read more about Carbon Use and Reuse research. Recent studies of current and potential CO2 use...

279

Consumption-based accounting of CO2 emissions  

E-Print Network [OSTI]

Soviet Union (Ukraine, Kazakhstan, Belarus, and Russia),kg CO 2 /$GDP FSS Ukraine Kazakhstan Iran East Asia BelarusAsia China South Africa Kazakhstan Malaysia Russia Thailand

Davis, S. J; Caldeira, K.

2010-01-01T23:59:59.000Z

280

Novel Processes for Power Plant with CO2 Capture.  

E-Print Network [OSTI]

?? The purpose of this thesis was to examine different technologies, which enhances the CO2 partial pressure in the flue gas from the natural gas… (more)

Ekre, Kjetil Vinjerui

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

Enhanced Geothermal Systems (EGS) with CO2 as Heat Transmission...  

Open Energy Info (EERE)

Targets Milestones - Test crucial predictions from theoretical models about the heat transfer and fluid flow properties of CO2; - Obtain essential data to be incorporated...

282

The geomechanics of CO2 storage in deep sedimentary formations  

E-Print Network [OSTI]

strain and microseismicity, well integrity, caprock sealingstrain and microseismicity, well integrity, caprock sealingactions. 7 WELLBORE INTEGRITY The well design of a deep CO 2

Rutqvist, J.

2013-01-01T23:59:59.000Z

283

Gravity monitoring of CO2 movement during sequestration: Model studies  

E-Print Network [OSTI]

CO 2 enhanced oil recovery (EOR) and sequestration in afor a coalbed methane formation. EOR/sequestration petroleumbut shallow compared to either EOR or brine formations. The

Gasperikova, E.

2008-01-01T23:59:59.000Z

284

Enhanced Geothermal Systems (EGS) with CO2as Heat Transmission...  

Broader source: Energy.gov (indexed) [DOE]

precipitation with spatial and temporal flow variations in CO2brinerock systems Tracer Methods for Characterizing Fracture Stimulation in Engineered Geothermal Systems (EGS)...

285

Summary Report on CO2 Geologic Sequestration & Water Resources Workshop  

E-Print Network [OSTI]

CO 2 Geological Storage and Ground Water Resources U.S.and Ground Water Protection Council (GWPC) State and Federal Statutes Storage,

Varadharajan, C.

2013-01-01T23:59:59.000Z

286

Chemical Impact of Elevated CO2on Geothermal Energy Production  

Broader source: Energy.gov (indexed) [DOE]

Chemical Impact of Elevated CO 2 on Geothermal Energy Production Principal Investigator Susan Carroll Lawrence Livermore National Lab Track Name May 18-20, 2010 This presentation...

287

Quantum Alloys Offer Prospects for CO2 Management Technologies...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

radical new catalysts capable of converting CO2 emissions into fuels, chemicals, and plastics. Their unique discovery involves shrinking gold into a system consisting of just 25...

288

Influence of capillary pressure on CO2 storage and monitoring  

E-Print Network [OSTI]

solutions to mitigate the greenhouse effect. We are interested in analyzing the influence of capillary pressure on CO2 in- jection, storage and monitoring in saline ...

gabriela

289

Advanced Post-Combustion CO2 Capture Prepared for the  

E-Print Network [OSTI]

Advanced Post-Combustion CO2 Capture Prepared for the Clean Air Task Force under a grant from...................................................................................... 3 2. Current Status of Post-Combustion Capture

290

accelerating co2 emissions: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

based on the empirical relationship between CO2 per capita emissions (due to fossil fuel combustion and cement production) and corresponding HDI. In order to project per capita...

291

CO2 exposure at pressure impacts metabolism and stress responses...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in the model sulfate-reducing bacterium Desulfovibrio vulgaris Abstract: Geologic carbon dioxide (CO2) sequestration drives physical and geochemical changes in deep...

292

atmospheric co2 content: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Of Physics Version 4 Gerlich and Ralf D. Tscheuschner Abstract The atmospheric greenhouse effect, an idea that many authors Of The Atmospheric CO2 Greenhouse Effects . . . 3...

293

atmospheric co2 concentrations: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Of Physics Version 4 Gerlich and Ralf D. Tscheuschner Abstract The atmospheric greenhouse effect, an idea that many authors Of The Atmospheric CO2 Greenhouse Effects . . . 3...

294

atmospheric co2 concentration: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Of Physics Version 4 Gerlich and Ralf D. Tscheuschner Abstract The atmospheric greenhouse effect, an idea that many authors Of The Atmospheric CO2 Greenhouse Effects . . . 3...

295

atmospheric co2 measurements: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Of Physics Version 4 Gerlich and Ralf D. Tscheuschner Abstract The atmospheric greenhouse effect, an idea that many authors Of The Atmospheric CO2 Greenhouse Effects . . . 3...

296

atmospheric co2 variations: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Of Physics Version 4 Gerlich and Ralf D. Tscheuschner Abstract The atmospheric greenhouse effect, an idea that many authors Of The Atmospheric CO2 Greenhouse Effects . . . 3...

297

atmospheric co2 mixing: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Of Physics Version 4 Gerlich and Ralf D. Tscheuschner Abstract The atmospheric greenhouse effect, an idea that many authors Of The Atmospheric CO2 Greenhouse Effects . . . 3...

298

Silurian "Clinton" Sandstone Reservoir Characterization for Evaluation of CO2-EOR Potential in the East Canton Oil Field, Ohio  

SciTech Connect (OSTI)

The purpose of this study was to evaluate the efficacy of using CO2-enhanced oil recovery (EOR) in the East Canton oil field (ECOF). Discovered in 1947, the ECOF in northeastern Ohio has produced approximately 95 million barrels (MMbbl) of oil from the Silurian “Clinton” sandstone. The original oil-in-place (OOIP) for this field was approximately 1.5 billion bbl and this study estimates by modeling known reservoir parameters, that between 76 and 279 MMbbl of additional oil could be produced through secondary recovery in this field, depending on the fluid and formation response to CO2 injection. A CO2 cyclic test (“Huff-n-Puff”) was conducted on a well in Stark County to test the injectivity in a “Clinton”-producing oil well in the ECOF and estimate the dispersion or potential breakthrough of the CO2 to surrounding wells. Eighty-one tons of CO2 (1.39 MMCF) were injected over a 20-hour period, after which the well was shut in for a 32-day “soak” period before production was resumed. Results demonstrated injection rates of 1.67 MMCF of gas per day, which was much higher than anticipated and no CO2 was detected in gas samples taken from eight immediately offsetting observation wells. All data collected during this test was analyzed, interpreted, and incorporated into the reservoir characterization study and used to develop the geologic model. The geologic model was used as input into a reservoir simulation performed by Fekete Associates, Inc., to estimate the behavior of reservoir fluids when large quantities of CO2 are injected into the “Clinton” sandstone. Results strongly suggest that the majority of the injected CO2 entered the matrix porosity of the reservoir pay zones, where it diffused into the oil. Evidence includes: (A) the volume of injected CO2 greatly exceeded the estimated capacity of the hydraulic fracture and natural fractures; (B) there was a gradual injection and pressure rate build-up during the test; (C) there was a subsequent, gradual flashout of the CO2 within the reservoir during the ensuing monitored production period; and (D) a large amount of CO2 continually off-gassed from wellhead oil samples collected as late as 3½ months after injection. After the test well was returned to production, it produced 174 bbl of oil during a 60-day period (September 22 to November 21, 2008), which represents an estimated 58 percent increase in incremental oil production over preinjection estimates of production under normal, conditions. The geologic model was used in a reservoir simulation model for a 700-acre model area and to design a pilot to test the model. The model was designed to achieve a 1-year response time and a five-year simulation period. The reservoir simulation modeling indicated that the injection wells could enhance oil production and lead to an additional 20 percent recovery in the pilot area over a five-year period. The base case estimated that by injecting 500 MCF per day of CO2 into each of the four corner wells, 26,000 STBO would be produced by the central producer over the five-year period. This would compare to 3,000 STBO if a new well were drilled without the benefit of CO2 injection. This study has added significant knowledge to the reservoir characterization of the “Clinton” in the ECOF and succeeded in identifying a range on CO2-EOR potential. However, additional data on fluid properties (PVT and swelling test), fractures (oriented core and microseis), and reservoir characteristics (relative permeability, capillary pressure, and wet ability) are needed to further narrow the uncertainties and refine the reservoir model and simulation. After collection of this data and refinement of the model and simulation, it is recommended that a larger scale cyclic- CO2 injection test be conducted to better determine the efficacy of CO2-EOR in the “Clinton” reservoir in the ECOF.

Riley, Ronald; Wicks, John; Perry, Christopher

2009-12-30T23:59:59.000Z

299

Hybrid Membrane/Absorption Process for Post-combustion CO2 Capture  

SciTech Connect (OSTI)

This report summarizes scientific/technical progress made for bench-scale membrane contactor technology for post-combustion CO2 capture from DOE Contract No. DE-FE-0004787. Budget Period 1 (BP1) membrane absorber, Budget Period 2 (BP2) membrane desorber and Budget Period 3 (BP3) integrated system and field testing studies have been completed successfully and met or exceeded the technical targets (? 90% CO2 removal and CO2 purity of 97% in one membrane stage). Significant breakthroughs are summarized below: BP1 research: The feasibility of utilizing the poly (ether ether ketone), PEEK, based hollow fiber contractor (HFC) in combination with chemical solvents to separate and capture at least 90% of the CO2 from simulated flue gases has been successfully established. Excellent progress has been made as we have achieved the BP1 goal: ? 1,000 membrane intrinsic CO2 permeance, ? 90% CO2 removal in one stage, ? 2 psi gas side pressure drop, and ? 1 (sec)-1 mass transfer coefficient. Initial test results also show that the CO2 capture performance, using activated Methyl Diethanol Amine (aMDEA) solvent, was not affected by flue gas contaminants O2 (~3%), NO2 (66 ppmv), and SO2 (145 ppmv). BP2 research: The feasibility of utilizing the PEEK HFC for CO2-loaded solvent regeneration has been successfully established High CO2 stripping flux, one order of magnitude higher than CO2 absorption flux, have been achieved. Refined economic evaluation based on BP1 membrane absorber and BP2 membrane desorber laboratory test data indicate that the CO2 capture costs are 36% lower than DOE’s benchmark amine absorption technology. BP3 research: A bench-scale system utilizing a membrane absorber and desorber was integrated into a continuous CO2 capture process using contactors containing 10 to 20 ft2 of membrane area. The integrated process operation was stable through a 100-hour laboratory test, utilizing a simulated flue gas stream. Greater than 90% CO2 capture combined with 97% CO2 product purity was achieved throughout the test. Membrane contactor modules have been scaled from bench scale 2-inch diameter by 12-inch long (20 ft2 membrane surface area) modules to 4-inch diameter by 60-inch long pilot scale modules (165 ft2 membrane surface area). Pilot scale modules were tested in an integrated absorption/regeneration system for CO2 capture field tests at a coal-fired power plant (Midwest Generation’s Will County Station located in Romeoville, IL). Absorption and regeneration contactors were constructed utilizing high performance super-hydrophobic, nano-porous PEEK membranes with CO2 gas permeance of 2,000 GPU and a 1,000 GPU, respectively. Field tests using aMDEA solvent achieved greater than 90% CO2 removal in a single stage. The absorption mass transfer coefficient was 1.2 (sec)-1, exceeding the initial target of 1.0 (sec)-1. This mass transfer coefficient is over one order of magnitude greater than that of conventional gas/liquid contacting equipment. The economic evaluation based on field tests data indicates that the CO2 capture cost associated with membrane contactor technology is $54.69 (Yr 2011$)/tonne of CO2 captured when using aMDEA as a solvent. It is projected that the DOE’s 2025 cost goal of $40 (Yr 2011$)/tonne of CO2 captured can be met by decreasing membrane module cost and by utilizing advanced CO2 capture solvents. In the second stage of the field test, an advanced solvent, Hitachi’s H3-1 was utilized. The use of H3-1 solvent increased mass transfer coefficient by 17% as compared to aMDEA solvent. The high mass transfer coefficient of H3-1 solvent combined with much more favorable solvent regeneration requirements, indicate that the projected savings achievable with membrane contactor process can be further improved. H3-1 solvent will be used in the next pilot-scale development phase. The integrated absorption/regeneration process design and high performance membrane contactors developed in the current bench-scale program will be used as the base technology for future pilot-scale development.

Li, Shiguang; Shou, S.; Pyrzynski, Travis; Makkuni, Ajay; Meyer, Howard

2013-12-31T23:59:59.000Z

300

Inducinga CO2 leak into ashallow aquifer (CO2FieldLab EUROGIA+ project): Monitoring the CO2 plume in groundwaters.  

E-Print Network [OSTI]

(saline aquifer, depleted oil/gas reservoir), aquifers are ubiquitousin the overlying sedimentary pile in case of unwanted CO2leakages from a storage site. Independently from the nature of the reservoir

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "initiates co2 injection" 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

TheU-Tube: A Novel System for Acquiring Borehole Fluid Samplesfrom a Deep Geologic CO2 Sequestration Experiment  

SciTech Connect (OSTI)

A novel system has been deployed to obtain geochemical samples of water and gas, at in situ pressure, during a geologic CO2 sequestration experiment conducted in the Frio brine aquifer in Liberty County, Texas. Project goals required high-frequency recovery of representative and uncontaminated aliquots of a rapidly changing two-phase (supercritical CO2-brine) fluid from 1.5 km depth. The datasets collected, using both the liquid and gas portions of the downhole samples, provide insights into the coupled hydro-geochemical issues affecting CO2 sequestration in brine-filled formations. While the basic premise underlying the U-Tube sampler is not new, the system is unique because careful consideration was given to the processing of the recovered two-phase fluids. In particular, strain gauges mounted beneath the high-pressure surface sample cylinders measured the ratio of recovered brine to supercritical CO2. A quadrupole mass spectrometer provided real-time gas analysis for perfluorocarbon and noble gas tracers that were injected along with the CO2. The U-Tube successfully acquired frequent samples, facilitating accurate delineation of the arrival of the CO2 plume, and on-site analysis revealed rapid changes in geochemical conditions.

Freifeld, Barry M.; Trautz, Robert C.; Kharaka, Yousif K.; Phelps, Tommy J.; Myer, Larry R.; Hovorka, Susan D.; Collins, Daniel J.

2005-03-17T23:59:59.000Z

302

Leakage and Sepage of CO2 from Geologic Carbon Sequestration Sites: CO2 Migration into Surface Water  

E-Print Network [OSTI]

from geologic carbon sequestration sites: unsaturated zoneCO 2 from Geologic Carbon Sequestration Sites, Vadose Zoneseepage from geologic carbon sequestration sites may occur.

Oldenburg, Curt M.; Lewicki, Jennifer L.

2005-01-01T23:59:59.000Z

303

5, 641659, 2008 CO2 perturabtions in  

E-Print Network [OSTI]

shown both adverse effects, including those on calcium carbon- ate production in calcifying organisms, and stimulating effects, such as on carbon and nitrogen fixation rates of some of the photoautotrophic organisms and positive feed-25 back loops, initial effects may be dampened or amplified, leading to gradual or catas

Boyer, Edmond

304

Single photon ionization of van der Waals clusters with a soft x-ray laser: ,,CO2...n and ,,CO2...n,,H2O...m  

E-Print Network [OSTI]

Single photon ionization of van der Waals clusters with a soft x-ray laser: ,,CO2...n and ,,CO2...n 2006; published online 20 October 2006 Pure neutral CO2 n clusters and mixed CO2 n H2O m clustersV. The distribution of pure CO2 n clusters decreases roughly exponentially with increasing cluster size. During

Rocca, Jorge J.

305

Chemical Impact of Elevated CO2on Geothermal Energy Production  

Broader source: Energy.gov [DOE]

This is a two phase project to assess the geochemical impact of CO2on geothermal energy production by: analyzing the geochemistry of existing geothermal fields with elevated natural CO2; measuring realistic rock-water rates for geothermal systems using laboratory and field-based experiments to simulate production scale impacts.

306

THERMOCATALYTIC CO2-FREE PRODUCTION OF HYDROGEN FROM HYDROCARBON FUELS  

E-Print Network [OSTI]

THERMOCATALYTIC CO2- FREE PRODUCTION OF HYDROGEN FROM HYDROCARBON FUELS N. Muradov Florida Solar Energy Center 1679 Clearlake Road, Cocoa, Florida 32922 tel. 321-638-1448, fax. 321-638-1010, muradov (except for the start-up operation). This results in the following advantages: (1) no CO/CO2 byproducts

307

Distribution of anthropogenic CO2 in the Pacific Ocean  

E-Print Network [OSTI]

Distribution of anthropogenic CO2 in the Pacific Ocean C. L. Sabine,1 R. A. Feely,2 R. M. Key,3 J] This work presents an estimate of anthropogenic CO2 in the Pacific Ocean based on measurements from the WOCE tracers; 9355 Information Related to Geographic Region: Pacific Ocean; KEYWORDS: Pacific Ocean

308

Comprehensive Monitoring of CO2 Sequestration in Subalpine Forest Ecosystems  

E-Print Network [OSTI]

, carbon sequestration, ecosystem, multi-tier, multi-modal, multi-scale, self organized, sensor array to comprehensively monitor ecosystem carbon sequestration. The network consists of CO2, Weather (pressureComprehensive Monitoring of CO2 Sequestration in Subalpine Forest Ecosystems and Its Relation

Han, Richard Y.

309

Oxidation in Environments with Elevated CO2 Levels  

SciTech Connect (OSTI)

Efforts to reduce greenhouse gas emissions from fossil energy power productions focus primarily on either pre- or post-combustion removal of CO2. The research presented here examines corrosion and oxidation issues associated with two types of post-combustion CO2 removal processes—oxyfuel combustion in refit boilers and oxyfuel turbines.

Gordon H. Holcomb

2009-05-01T23:59:59.000Z

310

Energy solutions for CO2 emission peak and subsequent decline  

E-Print Network [OSTI]

Energy solutions for CO2 emission peak and subsequent decline Edited by Leif Sønderberg Petersen and Hans Larsen Risø-R-1712(EN) September 2009 Proceedings Risø International Energy Conference 2009 #12;Editors: Leif Sønderberg Petersen and Hans Larsen Title: Energy solutions for CO2 emission peak

311

Using CO2 & Algae to Treat Wastewater and  

E-Print Network [OSTI]

Using CO2 & Algae to Treat Wastewater and Produce Biofuel Feedstock Tryg Lundquist Cal Poly State School, UCSB March 23, 2007 #12;CO2 and Wastewater Treatment · WW Treatment Technologies · Scale Actinastrum sp. #12;Major Wastewater Treatment Technologies in U.S. Activated Sludge 6,800 Facilities 25

Keller, Arturo A.

312

Original article Responses to elevated atmospheric CO2 concentration  

E-Print Network [OSTI]

Original article Responses to elevated atmospheric CO2 concentration and nitrogen supply of Quercus* School of Forest Resources and Conservation, University of Florida, 326 Newins-Ziegler Hall, Gainesville. Elevated [CO2] increased biomass production only in the high-N treatment. Fine root/foliage mass ratio

Paris-Sud XI, Université de

313

HYDROMECHANICAL CHARACTERIZATION FOR SITE SELECTION IN CO2 PERMANENT  

E-Print Network [OSTI]

-BarcelonaTech), Barcelona, Spain 3 Energy City Foundation (CIUDEN), Spanish Government CO2 Geological Storage Programme (Vilarrasa et al., 2011, Energy Procedia) Trees killed by CO2 leakage in Mammoth Mountains (Farrar et al EQUATIONS Mass conservation equation Darcy's law Momentum balance Effective stress Hooke's law (linear

Politècnica de Catalunya, Universitat

314

Falsification Of The Atmospheric CO2 Greenhouse Effects  

E-Print Network [OSTI]

Falsification Of The Atmospheric CO2 Greenhouse Effects Within The Frame Of Physics Version 4 Gerlich and Ralf D. Tscheuschner Abstract The atmospheric greenhouse effect, an idea that many authors Of The Atmospheric CO2 Greenhouse Effects . . . 3 Contents Abstract 2 1 Introduction 6 1.1 Problem background

Learned, John

315

Ex post evaluations of CO2 based taxes: a survey  

E-Print Network [OSTI]

of fossil fuels, and which are introduced with the explicit intention of abating CO2 emissions. This paper and, especially, subsidies, has been called into question. Secondly, the CO2-based taxes themselves and subsidies), it is unlikely that they have been cost-effective (in the sense of attaining their environmental

Watson, Andrew

316

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate Third Quarterly Report 2005 Quarterly Progress absorption/stripping by developing an alternative solvent, aqueous K2CO3 promoted by piperazine. Modeling.................................................................................................................................. 11 Task 1 ­ Modeling Performance of Absorption/Stripping of CO2 with Aqueous K2CO3 Promoted

Rochelle, Gary T.

317

CO2 Capture by Absorption with Potassium Carbonate  

E-Print Network [OSTI]

CO2 Capture by Absorption with Potassium Carbonate Fourth Quarterly Report 2005 Quarterly Progress absorption/stripping by developing an alternative solvent, aqueous K2CO3 promoted by piperazine. In Campaign.................................................................................................................................... 9 Task 1 ­ Modeling Performance of Absorption/Stripping of CO2 with Aqueous K2CO3 Promoted

Rochelle, Gary T.

318

European and Global Perspectives for CO2 Capture and Storage  

E-Print Network [OSTI]

plants. Therefore, it is recommended to employ mixes of the different CO2 emission reduction options are compared in order to address the question how to achieve significant CO2 emission reductions through2 emission reductions through the application of CCS technologies. The analysis shows that CCS can

319

Intercomparison of simulation models for CO2 disposal in underground storage reservoirs  

E-Print Network [OSTI]

oil recovery (EOR) using CO2 requires an understanding ofexperience with using CO2 for EOR projects (SPE, 1999), and

Pruess, Karsten; Tsang, Chin-Fu; Law, David; Oldenburg, Curt

2001-01-01T23:59:59.000Z

320

Quantifying Regional Economic Impacts of CO2 Intensity Targets in China  

E-Print Network [OSTI]

To address rising energy use and CO2 emissions, China’s leadership has enacted energy and CO2 intensity

Zhang, Da

2012-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

International Symposium on Site Characterization for CO2Geological Storage  

SciTech Connect (OSTI)

Several technological options have been proposed to stabilize atmospheric concentrations of CO{sub 2}. One proposed remedy is to separate and capture CO{sub 2} from fossil-fuel power plants and other stationary industrial sources and to inject the CO{sub 2} into deep subsurface formations for long-term storage and sequestration. Characterization of geologic formations for sequestration of large quantities of CO{sub 2} needs to be carefully considered to ensure that sites are suitable for long-term storage and that there will be no adverse impacts to human health or the environment. The Intergovernmental Panel on Climate Change (IPCC) Special Report on Carbon Dioxide Capture and Storage (Final Draft, October 2005) states that ''Site characterization, selection and performance prediction are crucial for successful geological storage. Before selecting a site, the geological setting must be characterized to determine if the overlying cap rock will provide an effective seal, if there is a sufficiently voluminous and permeable storage formation, and whether any abandoned or active wells will compromise the integrity of the seal. Moreover, the availability of good site characterization data is critical for the reliability of models''. This International Symposium on Site Characterization for CO{sub 2} Geological Storage (CO2SC) addresses the particular issue of site characterization and site selection related to the geologic storage of carbon dioxide. Presentations and discussions cover the various aspects associated with characterization and selection of potential CO{sub 2} storage sites, with emphasis on advances in process understanding, development of measurement methods, identification of key site features and parameters, site characterization strategies, and case studies.

Tsang, Chin-Fu

2006-02-23T23:59:59.000Z

322

Analysis of Potential Energy Saving and CO2 Emission Reduction of Home Appliances and Commercial Equipments in China  

E-Print Network [OSTI]

Others* Air Conditioner Frozen Scenario Total CO2 EmissionsCO2 Emissions (million tonnes CO2)Improvement Scenario Total CO2 Emissions *Others include:

Zhou, Nan

2011-01-01T23:59:59.000Z

323

Inverse modeling of CO2 sources and sinks using satellite observations of CO2 from TES and surface flask measurements  

SciTech Connect (OSTI)

We infer CO2 surface fluxes using satellite observations of mid-tropospheric CO2 from the Tropospheric Emission Spectrometer (TES) and measurements of CO2 from surface flasks in a time-independent inversion analysis based on the GEOS-Chem model. Using TES CO2 observations over oceans, spanning 40 S 40 N, we find that the horizontal and vertical coverage of the TES and flask data are complementary. This complementarity is demonstrated by combining the datasets in a joint inversion, which provides better constraints than from either dataset alone, when a posteriori CO2 distributions are evaluated against independent ship and aircraft CO2 data. In particular, the joint inversion offers improved constraints in the tropics where surface measurements are sparse, such as the tropical forests of South America. Aggregating the annual surface-to-atmosphere fluxes from the joint inversion for the year 2006 yields 1.13 0.21 PgC for the global ocean, 2.77 0.20 PgC for the global land biosphere and 3.90 0.29 PgC for the total global natural flux (defined as the sum of all biospheric, oceanic, and biomass burning contributions but excluding CO2 emissions from fossil fuel combustion). These global ocean and global land fluxes are shown to be near the median of the broad range of values from other inversion results for 2006. To achieve these results, a bias in TES CO2 in the Southern Hemisphere was assessed and corrected using aircraft flask data, and we demonstrate that our results have low sensitivity to variations in the bias correction approach. Overall, this analysis suggests that future carbon data assimilation systems can benefit by integrating in situ and satellite observations of CO2 and that the vertical information provided by satellite observations of mid-tropospheric CO2 combined with measurements of surface CO2, provides an important additional constraint for flux inversions.

Nassar, Ray [University of Toronto; Jones, DBA [University of Toronto; Kulawik, SS [Jet Propulsion Laboratory, Pasadena, CA; Worden, JR [Jet Propulsion Laboratory, Pasadena, CA; Bowman, K [Jet Propulsion Laboratory, Pasadena, CA; Andres, Robert Joseph [ORNL; Suntharalingam, P [University of East Anglia, Norwich, United Kingdom; Chen, j. [University of Toronto; Brenninkmeijer, CAM [Max Planck Institut fur Chemie, Mainz; Schuck, TJ [Max Planck Institut fur Chemie, Mainz; Conway, T.J. [NOAA, Boulder, CO; Worthy, DE [Environment Canada

2011-01-01T23:59:59.000Z

324

A Mechanistic Model for CO2 Sequestration in Tiffany Coal Bed Methane Field  

SciTech Connect (OSTI)

The objective of this project is to develop mechanistic models specific to CO2 sequestration in BP's Tiffany coal bed methane (CBM) field. In this study, the original field model was modified to match the field performance of a 5-spot pattern in the northern part of the Tiffany Field where BP plans to perform a micro-pilot test. The modified model consists of one high-permeability fast layer sandwiched between two low-permeability slow layers. In this mechanistic model, the fast layer represents well-cleated and fractured coal from all geological layers while the slow layers represent coal with little or no fracture development from the same geological layers. The model successfully matched the performance of the 5-spot pattern during the enhanced recovery period. However, in order to match nitrogen breakthrough times and nitrogen cut the vertical transmissibility between layers had to be set to zero. During gas injection, nitrogen was allowed to enter all three layers, not just the high-permeability fast layer. However, because the permeabilities of the slow layers were low and there is no communication between the fast and the slow layers, most of the injected nitrogen entered the high-permeability fast layer. This suggests that the future gas injection and CO2 sequestration may be restricted to only one third of the total available pay.

Liang, J.; Raterman, K.T.; Robertson, E.P.

2003-05-01T23:59:59.000Z

325

ELECTRONIC FUEL INJECTION DIESEL LOCOMOTIVES  

E-Print Network [OSTI]

ELECTRONIC FUEL INJECTION FOR DIESEL LOCOMOTIVES 13 August, 2011 Diesel Loco Modernisation Works, Patiala #12;ELECTRONIC FUEL INJECTION FOR DIESEL LOCOMOTIVES A Milestone in Green Initiatives by Indian Diesel Locomotive equipped with "Electronic Fuel Injection (EFI)" was turned out by the Diesel Loco

Jagannatham, Aditya K.

326

An integrated experimental and numerical study: Developing a reaction transport model that couples chemical reactions of mineral dissolution/precipitation with spatial and temporal flow variations in CO2/brine/rock systems  

Broader source: Energy.gov [DOE]

Project objectives: Generate and characterize mineral dissolution/precipitation reactions in supercritical CO2/brine/rock systems under pressure-temperature-chemistry conditions resembling CO2injection into EGS. Characterize three-dimensional spatial and temporal distributions of rock structures subject to mineral dissolution/precipitation processes by X-ray tomography, SEM imaging, and Microprobe analysis.

327

Free Air CO2 Enrichment (FACE) Data Management System  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The DOE Biological and Environmental Research Program (BER) is responsible for four "core" FACE sites and projects. These are known as Aspen FACE, Duke FACE, ORNL FACE, and Nevada Deseret FACE. Brookhaven provides operational support to some of these sites, while The FACE Data Management System at ORNL and CDIAC serves as a data repository. In addition, DOE supports OTC experiments in conjunction with the Smithsonian Environmental Research Center (SERC) in Maryland and Florida. There are also FACE experiments ongoing in other countries. [Quoted from the home page of the FACE Data Management System and other pages within the web site.] The FACE Data Management System at ORNL provides links to all the FACE and SERC sites and to the data (both the data archived at CDIAC and data still residing on site-specific pages). Users are also given in-depth information on the concept, provided with a full, linked list of international projects, and guided to related research. The FACE projects were part of the CO2 research network fostered by the Global Change and Terrestrial Ecosystems core project of the International Geosphere-Biosphere Programme. Results from the experiment contribute to the Terrestrial Ecosystem Response to Atmospheric and Climatic Change (TERACC) project, a 5-year initiative integrating experimental data and global change modeling.

328

Predicting PVT data for CO2brine mixtures for black-oil simulation of CO2 geological storage  

E-Print Network [OSTI]

Predicting PVT data for CO2­brine mixtures for black-oil simulation of CO2 geological storage efficiency of the black-oil approach promote application of black-oil simulation for large-scale geological into geological formations has been considered as a potential method to mitigate climate change. Accurate

Santos, Juan

329

Odors that Modify CO2 Receptor Activity in Insects and Their Effect on Innate CO2-Mediated Behavior and Neuronal Plasticity  

E-Print Network [OSTI]

Intermediates in Insect CO2 Sensory Systems. Science Certel,2007). The molecular basis of CO2 reception in Drosophila.J. (2004). Floral CO2 Reveals Flower Profitability to Moths.

Turner, Stephanie

2010-01-01T23:59:59.000Z

330

Enhanced geothermal systems (EGS) with CO2 as heat transmission fluid--A scheme for combining recovery of renewable energy with geologic storage of CO2  

E-Print Network [OSTI]

Could Sequestration of CO2 be Combined with the DevelopmentTOUGH2 Code for Studies of CO2 Storage in Saline Aquifers,and J. Ennis- King. CO2-H2O Mixtures in the Geological

Pruess, K.

2010-01-01T23:59:59.000Z

331

EIS-0473: W.A. Parish Post-Combustion CO2 Capture and Sequestration Project (PCCS), Fort Bend County, TX  

Broader source: Energy.gov [DOE]

This EIS evaluates the environmental impacts of a proposal to provide financial assistance for a project proposed by NRG Energy, Inc (NRG). DOE selected NRG’s proposed W.A. Parish Post-Combustion CO2 Capture and Sequestration Project for a financial assistance award through a competitive process under the Clean Coal Power Initiative Program. NRG would design, construct and operate a commercial-scale carbon dioxide (CO2) capture facility at its existing W.A. Parish Generating Station in Fort Bend County, Texas; deliver the CO2 via a new pipeline to the existing West Ranch oil field in Jackson County, Texas, for use in enhanced oil recovery operations; and demonstrate monitoring techniques to verify the permanence of geologic CO2 storage.

332

CO2 Capture with Liquid-to-Solid Absorbents: CO2 Capture Process Using Phase-Changing Absorbents  

SciTech Connect (OSTI)

IMPACCT Project: GE and the University of Pittsburgh are developing a unique CO2 capture process in which a liquid absorbent, upon contact with CO2, changes into a solid phase. Once in solid form, the material can be separated and the CO2 can be released for storage by heating. Upon heating, the absorbent returns to its liquid form, where it can be reused to capture more CO2. The approach is more efficient than other solventbased processes because it avoids the heating of extraneous solvents such as water. This ultimately leads to a lower cost of CO2 capture and will lower the additional cost to produce electricity for coal-fired power plants that retrofit their facilities to include this technology.

None

2010-10-01T23:59:59.000Z

333

Combustion-Assisted CO2 Capture Using MECC Membranes  

SciTech Connect (OSTI)

Mixed Electron and Carbonate ion Conductor (MECC) membranes have been proposed as a means to separate CO2 from power plant flue gas. Here a modified MECC CO2 capture process is analyzed that supplements retentate pressurization and permeate evacuation as a means to create a CO2 driving force with a process assisted by the catalytic combustion of syngas on the permeate side of the membrane. The combustion reactions consume transported oxygen, making it unavailable for the backwards transport reaction. With this change, the MECC capture system becomes exothermic, and steam for electricity production may be generated from the waste heat. Greater than 90% of the CO2 in the flue gas may be captured, and a compressed CO2 product stream is produced. A fossil-fueled power plant using this process would consume 14% more fuel per unit electricity produced than a power plant with no CO2 capture system, and has the potential to meet U.S. DOE s goal that deployment of a CO2 capture system at a fossil-fueled power plant should not increase the cost of electricity from the combined facility by more than 30%.

Sherman, Steven R [ORNL; Gray, Dr. Joshua R. [Savannah River National Laboratory (SRNL), Aiken, S.C.; Brinkman, Dr. Kyle S. [Savannah River National Laboratory (SRNL), Aiken, S.C.; Huang, Dr. Kevin [University of South Carolina, Columbia

2012-01-01T23:59:59.000Z

334

Methanogenic Conversion of CO2 Into CH4  

SciTech Connect (OSTI)

This SBIR project evaluated the potential to remediate geologic CO2 sequestration sites into useful methane gas fields by application of methanogenic bacteria. Such methanogens are present in a wide variety of natural environments, converting CO2 into CH4 under natural conditions. We conclude that the process is generally feasible to apply within many of the proposed CO2 storage reservoir settings. However, extensive further basic R&D still is needed to define the precise species, environments, nutrient growth accelerants, and economics of the methanogenic process. Consequently, the study team does not recommend Phase III commercial application of the technology at this early phase.

Stevens, S.H., Ferry, J.G., Schoell, M.

2012-05-06T23:59:59.000Z

335

Et notat til "det elektriske CO2 projekt". Med udgangspunkt i de studerendes CO2 tips analyseres CO2 emissionen i de forskellige belysningssituationer. De forskellige tips ses p projektets hjemmeside  

E-Print Network [OSTI]

1 Et notat til "det elektriske CO2 projekt". Med udgangspunkt i de studerendes CO2 tips analyseres CO2 emissionen i de forskellige belysningssituationer. De forskellige tips ses på projektets hjemmeside www.co2tips.dk Indholdsfortegnelse EL-FORBRUG TIL BELYSNING I HUSHOLDNINGER

336

Enhanced Practical Photosynthetic CO2 Mitigation  

SciTech Connect (OSTI)

This quarterly report documents significant achievements in the Enhanced Practical Photosynthetic CO{sub 2} Mitigation project during the period from 4/2/2003 through 7/01/2003. As indicated in the list of accomplishments below we have completed some long-term model scale bioreactor tests and are prepared to begin pilot scale bioreactor testing. Specific results and accomplishments for the second quarter of 2003 include: (1) Bioreactor support systems and test facilities: (a) Qualitative long-term survivability tests for S.C.1.2(2) on Omnisil have been successfully completed and results demonstrate a growth rate that appears to be acceptable. (b) Quantitative tests of long-term growth productivity for S.C.1.2(2) on Omnisil have been completed and initial results are promising. Initial results show that the mass of organisms doubled (from 54.9 grams to 109.8 grams) in about 5 weeks. Full results will be available as soon as all membranes and filters are completely dried. The growth rate should increase significantly with the initiation of weekly harvesting during the long term tests. (c) The phase 1 construction of the pilot scale bioreactor has been completed, including the solar collector and light distribution system. We are now in the phase of system improvement as we wait for CRF-2 results in order to be able to finalize the design and construction of the pilot scale system. (d) A mass transfer experimental setup was constructed in order to measure the mass transfer rate from the gas to the liquid film flowing over a membrane and to study the hydrodynamics of the liquid film flowing over a membrane in the bioreactor. Results were reported for mass transfer coefficient, film thickness, and fluid velocity over an Omnisil membrane with a ''drilled hole'' header pipe design. (2) Organisms and Growth Surfaces: (a) A selectivity approach was used to obtain a cyanobacterial culture with elevated resistance to acid pH. Microlonies of ''3.2.2 S.C.1 Positive'' migrated towards light along a light gradient, and against acid gradient, in whole. Nonetheless, some microcolonies were able to generate ''secondary'' microcolonies with increased ability to move towards acid area. These microcolonies with elevated resistance to acidity have been isolated and inoculated in BG-11 with pH 6. They are still under incubation. (b) We have continued our work on the genotyping of unialgal cyanobacterial cultures isolated in YNP. Because partial sequence of 16S rRNA gene of the isolate 5.2 S.C.1 did not appear to be more than 93% identical to published cyanobacterial sequences, we carried out entire sequence of this gene using the combination of different primers. It appears that we have found a representative of putative new genus. We expect to publish all sequences. (c) The new species (even probably new genus) of cyanobacteria, 5.2 s. c. 1 that was isolated from La Duke Spring in Great Yellowstone Basin demonstrate an elevated resistance to some compounds of iron. This might be very important for our project, because plant gases may have elevated amount of iron. Our study of the effect of different concentration of FeCl3 6H2O on the growth of 5.2 S.C.1 isolate showed that iron additions stimulated rather then inhibited the growth of 5.2. S.C.1 isolate. Because of this we would recommend this isolate for further experiments.

Gregory Kremer; David J. Bayless; Morgan Vis; Michael Prudich; Keith Cooksey; Jeff Muhs

2003-07-22T23:59:59.000Z

337

Recovery Act: Innovative CO2 Sequestration from Flue Gas Using Industrial Sources and Innovative Concept for Beneficial CO2 Use  

SciTech Connect (OSTI)

field testing of a biomimetic in-duct scrubbing system for the capture of gaseous CO2 coupled with sequestration of captured carbon by carbonation of alkaline industrial wastes. The Phase 2 project, reported on here, combined efforts in enzyme development, scrubber optimization, and sequestrant evaluations to perform an economic feasibility study of technology deployment. The optimization of carbonic anhydrase (CA) enzyme reactivity and stability are critical steps in deployment of this technology. A variety of CA enzyme variants were evaluated for reactivity and stability in both bench scale and in laboratory pilot scale testing to determine current limits in enzyme performance. Optimization of scrubber design allowed for improved process economics while maintaining desired capture efficiencies. A range of configurations, materials, and operating conditions were examined at the Alcoa Technical Center on a pilot scale scrubber. This work indicated that a cross current flow utilizing a specialized gas-liquid contactor offered the lowest system operating energy. Various industrial waste materials were evaluated as sources of alkalinity for the scrubber feed solution and as sources of calcium for precipitation of carbonate. Solids were mixed with a simulated sodium bicarbonate scrubber blowdown to comparatively examine reactivity. Supernatant solutions and post-test solids were analyzed to quantify and model the sequestration reactions. The best performing solids were found to sequester between 2.3 and 2.9 moles of CO2 per kg of dry solid in 1-4 hours of reaction time. These best performing solids were cement kiln dust, circulating dry scrubber ash, and spray dryer absorber ash. A techno-economic analysis was performed to evaluate the commercial viability of the proposed carbon capture and sequestration process in full-scale at an aluminum smelter and a refinery location. For both cases the in-duct scrubber technology was compared to traditional amine- based capture. Incorporation of the laboratory results showed that for the application at the aluminum smelter, the in-duct scrubber system is more economical than traditional methods. However, the reverse is true for the refinery case, where the bauxite residue is not effective enough as a sequestrant, combined with challenges related to contaminants in the bauxite residue accumulating in and fouling the scrubber absorbent. Sensitivity analyses showed that the critical variables by which process economics could be improved are enzyme concentration, efficiency, and half-life. At the end of the first part of the Phase 2 project, a gate review (DOE Decision Zero Gate Point) was conducted to decide on the next stages of the project. The original plan was to follow the pre-testing phase with a detailed design for the field testing. Unfavorable process economics, however, resulted in a decision to conclude the project before moving to field testing. It is noted that CO2 Solutions proposed an initial solution to reduce process costs through more advanced enzyme management, however, DOE program requirements restricting any technology development extending beyond 2014 as commercial deployment timeline did not allow this solution to be undertaken.

Dando, Neal; Gershenzon, Mike; Ghosh, Rajat

2012-07-31T23:59:59.000Z

338

System-level modeling for geological storage of CO2  

E-Print Network [OSTI]

CO 2 escapes the reservoir through the abandoned well. Theof the abandoned well and the gas reservoir is calculated by4 reservoir 1.e-12 1.e-14 8.4e-4 Fracture or abandoned well

Zhang, Yingqi; Oldenburg, Curtis M.; Finsterle, Stefan; Bodvarsson, Gudmundur S.

2006-01-01T23:59:59.000Z

339

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

in depleted or abandoned oil and gas reservoirs; how- ever,abandoned wells represent a potentially direct route from reservoirabandoned in the 1930s with no barrier installed after it encountered a natural CO 2 reservoir

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

340

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

in depleted or abandoned oil and gas reservoirs; how- ever,oil well abandoned in the 1930s with no barrier installed after it encountered a natural CO 2 reservoir

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

The geomechanics of CO2 storage in deep sedimentary formations  

E-Print Network [OSTI]

such as depleted oil and gas reservoirs, unminable coaltakes place in depleted oil or gas reservoirs (IAE, 2003).of CO 2 in depleted oil and gas reservoirs. J Can Pet

Rutqvist, J.

2013-01-01T23:59:59.000Z

342

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

IN DEPLETED AND NEAR- DEPLETED OIL RESERVOIRS V. A. KuuskraaDEPLETED AND NEAR-DEPLETED OIL RESERVOIRS Vello A. Kuuskraaof CO 2 in a depleted oil reservoir: an overview,

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

343

Novel CO2-Thickeners for Improved Mobility Control  

SciTech Connect (OSTI)

The objective of this contract was to design, synthesize, and characterize thickening agents for dense carbon dioxide and to evaluate their solubility and viscosity-enhancing potential in CO2.

Enick, Dr. Robert M.; Beckman, Dr. Eric J.; Hamilton, Dr. Andrew

2002-01-15T23:59:59.000Z

344

CO2 MONITORING FOR DEMAND CONTROLLED VENTILATION IN COMMERCIAL BUILDINGS  

E-Print Network [OSTI]

Transactions 105(2). Emmerich, S. J. and A. K. Persily (Fisk and de Almeida 1998; Emmerich and Persily 2001), CO 2Fisk and de Almeida 1998; Emmerich and Persily 2001; Apte

Fisk, William J.

2010-01-01T23:59:59.000Z

345

Bees, Balloons, Pollen Used as Novel CO2 Monitoring Approach  

Broader source: Energy.gov [DOE]

Researchers at the Office of Fossil Energy's National Energy Technology Laboratory have discovered an innovative way to use bees, pollen, and helium-filled balloons to verify that no carbon dioxide (CO2) leaks from carbon sequestration sites.

346

Canada’s Bitumen Industry Under CO2 Constraints  

E-Print Network [OSTI]

We investigate the effects of implementing CO2 emissions reduction policies on Canada’s oil sands industry, the largest of its kind in the world. The production of petroleum products from oils sands involves extraction of ...

Chen, Y.-H. Henry

347

International Symposium on Site Characterization for CO2 Geological Storage  

E-Print Network [OSTI]

FEASIBILITY: TEAPOT DOME EOR PILOT L. Chiaramonte, M.TO IDENTIFY OPTIMAL CO 2 EOR STORAGE SITES V. Núñez Lopez,from a carbon dioxide EOR/sequestration project. Energy

Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

348

From CO2 to Methanol via Novel Nanocatalysts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Here, Graciani et al. report on a new nanocatalyst that can do just that for CO2- in producing methanol, a key industrial chemical commonly used to make other chemicals and...

349

Quantum Chemistry of CO2 Interaction with Swelling Clays | netl...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Quantum Chemistry of CO2 Interaction with Swelling Clays Sep 2014 Aug 2014 Jul 2014 June 2014 May 2014 Apr 2014 Mar 2014 Feb 2014 Jan 2014 Dec 2013 Nov 2013 Oct 2013 Sep 2013 Aug...

350

Implications of "peak oil" for atmospheric CO2 and climate  

E-Print Network [OSTI]

Peaking of global oil production may have a large effect on future atmospheric CO2 amount and climate change, depending upon choices made for subsequent energy sources. We suggest that, if estimates of oil and gas reserves by the Energy Information Administration are realistic, it is feasible to keep atmospheric CO2 from exceeding approximately 450 ppm, provided that future exploitation of the huge reservoirs of coal and unconventional fossil fuels incorporates carbon capture and sequestration. Existing coal-fired power plants, without sequestration, must be phased out before mid-century to achieve this limit on atmospheric CO2. We also suggest that it is important to "stretch" oil reserves via energy efficiency, thus avoiding the need to extract liquid fuels from coal or unconventional fossil fuels. We argue that a rising price on carbon emissions is probably needed to keep CO2 beneath the 450 ppm ceiling.

Kharecha, P A

2007-01-01T23:59:59.000Z

351

Electron Transfer Dynamics in Photocatalytic CO2 Conversion ...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electron Transfer Dynamics in Photocatalytic CO2 Conversion Sep 2014 Aug 2014 Jul 2014 June 2014 May 2014 Apr 2014 Mar 2014 Feb 2014 Jan 2014 Dec 2013 Nov 2013 Oct 2013 Sep 2013...

352

DOE Manual Studies 11 Major CO2 Geologic Storage Formations  

Broader source: Energy.gov [DOE]

A comprehensive study of 11 geologic formations suitable for permanent underground carbon dioxide (CO2) storage is contained in a new manual issued by the U.S. Department of Energy.

353

Geochemical Impacts of Leaking CO2 from Subsurface Storage Reservoirs to Unconfined and Confined Aquifers  

SciTech Connect (OSTI)

Experimental research work has been conducted and is undergoing at Pacific Northwest National Laboratory (PNNL) to address a variety of scientific issues related with the potential leaks of the carbon dioxide (CO2) gas from deep storage reservoirs. The main objectives of this work are as follows: • Develop a systematic understanding of how CO2 leakage is likely to influence pertinent geochemical processes (e.g., dissolution/precipitation, sorption/desorption and redox reactions) in the aquifer sediments. • Identify prevailing environmental conditions that would dictate one geochemical outcome over another. • Gather useful information to support site selection, risk assessment, policy-making, and public education efforts associated with geological carbon sequestration. In this report, we present results from experiments conducted at PNNL to address research issues related to the main objectives of this effort. A series of batch and column experiments and solid phase characterization studies (quantitative x-ray diffraction and wet chemical extractions with a concentrated acid) were conducted with representative rocks and sediments from an unconfined, oxidizing carbonate aquifer, i.e., Edwards aquifer in Texas, and a confined aquifer, i.e., the High Plains aquifer in Kansas. These materials were exposed to a CO2 gas stream simulating CO2 gas leaking scenarios, and changes in aqueous phase pH and chemical composition were measured in liquid and effluent samples collected at pre-determined experimental times. Additional research to be conducted during the current fiscal year will further validate these results and will address other important remaining issues. Results from these experimental efforts will provide valuable insights for the development of site-specific, generation III reduced order models. In addition, results will initially serve as input parameters during model calibration runs and, ultimately, will be used to test model predictive capability and competency. The results from these investigations will provide useful information to support site selection, risk assessment, and public education efforts associated with geological, deep subsurface CO2 storage and sequestration.

Qafoku, Nikolla; Brown, Christopher F.; Wang, Guohui; Sullivan, E. C.; Lawter, Amanda R.; Harvey, Omar R.; Bowden, Mark

2013-04-15T23:59:59.000Z

354

Inventory of Carbon Dioxide (CO2) Emissions at Pacific Northwest National Laboratory  

SciTech Connect (OSTI)

The Carbon Management Strategic Initiative (CMSI) is a lab-wide initiative to position the Pacific Northwest National Laboratory (PNNL) as a leader in science, technology and policy analysis required to understand, mitigate and adapt to global climate change as a nation. As part of an effort to walk the talk in the field of carbon management, PNNL conducted its first carbon dioxide (CO2) emissions inventory for the 2007 calendar year. The goal of this preliminary inventory is to provide PNNL staff and management with a sense for the relative impact different activities at PNNL have on the lab’s total carbon footprint.

Judd, Kathleen S.; Kora, Angela R.; Shankle, Steve A.; Fowler, Kimberly M.

2009-06-29T23:59:59.000Z

355

Evaluating the impact of aquifer layer properties on geomechanical response during CO2 geological sequestration  

SciTech Connect (OSTI)

Numerical models play an essential role in understanding the facts of carbon dioxide (CO2) geological sequestration in the life cycle of a storage reservoir. We present a series of test cases that reflect a broad and realistic range of aquifer reservoir properties to systematically evaluate and compare the impacts on the geomechanical response to CO2 injection. In this study, a coupled hydro-mechanical model was introduced to simulate the sequestration process, and a quasi-Monte Carlo sampling method was introduced to efficiently sample the value of aquifer properties and geometry parameters. Aquifer permeability was found to be of significant importance to the geomechanical response to the injection. To study the influence of uncertainty of the permeability distribution in the aquifer, an additional series of tests is presented, based on a default permeability distribution site sample with various distribution deviations generated by the Monte Carlo sampling method. The results of the test series show that different permeability distributions significantly affect the displacement and possible failure zone.

Bao, Jie; Xu, Zhijie; Lin, Guang; Fang, Yilin

2013-04-01T23:59:59.000Z

356

Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in India's Iron and Steel Industry  

E-Print Network [OSTI]

Improvement and CO2 Emission Reduction Potentials in theUS $/GJ- saved) CO2 Emissions Reduction (Mt CO 2 ) CCF RankUS$/GJ- saved) CO2 Emissions Reduction (Mt CO 2 ) * The

Morrow III, William R.

2014-01-01T23:59:59.000Z

357

Experimental assessment of CO2-mineral-toxic ion interactions in a1 simplified freshwater aquifer: Implications for CO2 leakage from deep2  

E-Print Network [OSTI]

ton CO2/year),2 caused mainly by fossil fuel combustion, have led to concerns about global warming. To,version1-21Jun2013 #12;5 Introduction1 Unregulated CO2 emissions into the Earth's atmosphere (about 22x1093 maintain the atmospheric CO2 level below 500 ppm, CO2 emissions will have to be stabilized4

Paris-Sud XI, Université de

358

Experimental Assessment of CO2Mineral-Toxic Ion Interactions in a Simplified Freshwater Aquifer: Implications for CO2 Leakage from  

E-Print Network [OSTI]

by fossil fuel combustion, have led to concerns about global warming. To maintain the atmospheric CO2 level. INTRODUCTION Unregulated CO2 emissions into the Earth's atmosphere (about 22 Ã? 109 ton CO2/year), caused mainly below 500 ppm, CO2 emissions will have to be stabilized at current levels, although they are forecast

359

CO2 leakage up from a geological storage site to shallow fresh groundwater: CO2-water-rock interaction assessment and  

E-Print Network [OSTI]

CO2 leakage up from a geological storage site to shallow fresh groundwater: CO2-water repository requires the investigation of the potential CO2 leakage back into fresh groundwater, particularly sensitive monitoring techniques in order to detect potential CO2 leaks and their magnitude as well

Paris-Sud XI, Université de

360

Carbon Dioxide Transport and Sorption Behavior in Confined Coal Cores for Enhanced Coalbed Methane and CO2 Sequestration  

SciTech Connect (OSTI)

Measurements of sorption isotherms and transport properties of CO2 in coal cores are important for designing enhanced coalbed methane/CO2 sequestration field projects. Sorption isotherms measured in the lab can provide the upper limit on the amount of CO2 that might be sorbed in these projects. Because sequestration sites will most likely be in unmineable coals, many of the coals will be deep and under considerable lithostatic and hydrostatic pressures. These lithostatic pressures may significantly reduce the sorption capacities and/or transport rates. Consequently, we have studied apparent sorption and diffusion in a coal core under confining pressure. A core from the important bituminous coal Pittsburgh #8 was kept under a constant, three-dimensional external stress; the sample was scanned by X-ray computer tomography (CT) before, then while it sorbed, CO2. Increases in sample density due to sorption were calculated from the CT images. Moreover, density distributions for small volume elements inside the core were calculated and analyzed. Qualitatively, the computerized tomography showed that gas sorption advanced at different rates in different regions of the core, and that diffusion and sorption progressed slowly. The amounts of CO2 sorbed were plotted vs. position (at fixed times) and vs. time (for various locations in the sample). The resulting sorption isotherms were compared to isotherms obtained from powdered coal from the same Pittsburgh #8 extended sample. The results showed that for this single coal at specified times, the apparent sorption isotherms were dependent on position of the volume element in the core and the distance from the CO2 source. Also, the calculated isotherms showed that less CO2 was sorbed than by a powdered (and unconfined) sample of the coal. Changes in density distributions during the experiment were also observed. After desorption, the density distribution of calculated volume elements differed from the initial distribution, suggesting hysteresis and a possible rearrangement of coal structure due to CO2 sorption.

Jikich, S.A.; McLendon, T.R.; Seshadri, K.S.; Irdi, G.A.; Smith, D.H.

2007-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

Generation of a Doubly Bridging CO2 Ligand and Deoxygenation of CO2 by an (NHC)Ni(0) Complex  

E-Print Network [OSTI]

for CO2, µ-2,2-CO2, at a dinickel core. The reaction of [(IPr)Ni(µ-Cl)]2 18 (IPr ) 1,3-bis(2,6-diisopro, (IPr)- Ni(6-C6D6). We note that this symmetric pattern for the backbone protons is observed in reacted isolation of the product as a solid. Reaction of [(IPr)Ni(µ-Cl)]2 with Li(HBEt3) or with NaOt-Bu followed

Müller, Peter

362

Intracranial Pressure Variation Associated with Changes in End-Tidal CO2  

E-Print Network [OSTI]

Intracranial Pressure Variation Associated with Changes in End-Tidal CO2 Sunghan Kim, James Mc that the partial pressure of arterial CO2 (PaCO2) can affect cerebral blood flow, cerebral blood volume, and therefore ICP. The end-tidal CO2 (ETCO2) is usually monitored by clinicians as a proxy for PaCO2. We show

363

Modeling Hydrogeological and Geomenchanical Processes Related to CO2 Injection in a Faulted Multilayer System  

E-Print Network [OSTI]

that could induce hydraulic fracturing or (2) the criticalpressure for onset of hydraulic fracturing of shear slip,

Rutqvist, Jonny; Birkholzer, Jens; Tsang, Chin-Fu

2006-01-01T23:59:59.000Z

364

9,355,469 Metric Tons of CO2 Injected as of January 29, 2015...  

Energy Savers [EERE]

Unit of the Anadarko Basin. Learn more about the DOE's RCSP Program. Major Demonstrations Air Products.jpg Air Products and Chemicals, Inc.: Air Products and Chemicals, Inc., is...

365

Carbon Storage Partner Completes First Year of CO2 Injection Operations in  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehiclesTankless orA BRIEFAprilBudgetAbout5 CalendarCarbonIllinois |

366

Illinois CO2 Injection Project Moves Another Step Forward | Department of  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietipDepartment of Energy MediaRequirements of NEPA41Energy

367

Ancient Lava Flows Trap CO2 for Long-Term Storage in Big Sky Injection |  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchThe OfficeUtility Fed.9-0s) AllMarch/April 2015LaboratoryMSEand its1.

368

Spatio-temporal changes in CO2 emissions during the second ZERT injection,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administrationcontroller systemsBiSiteNeutron Scattering Facilities »SouthernSynechococcus

369

Time-lapse crosswell seismic and VSP monitoring of injected CO2 in a brine aquifer  

E-Print Network [OSTI]

reservoirs. In the case of oil reservoirs the interpretationas well as in oil and gas reservoirs (Arts et al. 2002;

Daley, Thomas M.; Myer, Larry R.; Peterson, J.E.; Majer, E.L.; Hoversten, G.M.

2006-01-01T23:59:59.000Z

370

INVESTIGATION OF EFFICIENCY IMPROVEMENTS DURING CO2 INJECTION IN HYDRAULICALLY AND NATURALLY FRACTURED RESERVOIRS  

SciTech Connect (OSTI)

The objective of this project is to perform unique laboratory experiments with artificial fractured cores (AFCs) and X-ray CT to examine the physical mechanisms of bypassing in HFR and NFR that eventually result in less efficient CO{sub 2} flooding in heterogeneous or fracture-dominated reservoirs. This report provides results of the second semi-annual technical progress report that consists of three different topics. In the first topic, laboratory experiments were performed on a Berea core to investigate the changes in rock properties and fluid flow under different stress-state conditions. A comparative study of different stress conditions was also conducted to analyze the effect of the various loading systems. The experimental results show that fracture permeability reduces significantly as the stress increases compared to matrix permeability. The hydrostatic and triaxial stresses have greater impacts on permeability reduction compared to applying stress in the uniaxial stress condition. Fracture flow dominates when the applied stress is less, however, the matrix flow rate increases as applied stress increases and dominates at high stress even if the fracture does not heal completely. In the second topic, the preliminary results of static imbibition experiments are presented as a precursor to image the saturation profiles using X-Ray CT scanner. The static and dynamic imbibition experiments have been done previously (Schechter et al, 2002). The imaging of imbibition experiment is underway to track the saturation profiles using X-ray CT scanner. Hence, no more conclusions are drawn from this study at this time. In the last topic, the modeling of fluid flow through a single fracture incorporating the effect of surface roughness is conducted. Fracture permeability is usually estimated by a cubic law that is based on the theory of hydrodynamics for the laminar flow between flat plates. However, the cubic law is too simple to estimate the fracture permeability correctly, because the surface of real fracture is much more complicated and rougher than the surface of flat plate. Several researchers have shown that the flow characteristics of an actual fracture surface would be quite different due to the effect of tortuosity, impact of surface roughness and contact areas. Nonetheless, to date, these efforts have not converged to form a unified definition on the fracture aperture needed in the cubic law. In this study, therefore, we show that the cubic law could still be used to model small-scale and field-scale data as long as it is modeled effectively, accounting for the effect of surface roughness associated with the fracture surface. The goal of this research is to examine the effect of surface roughness for flow through fractures and to effectively incorporate them into simulations with the aid of geostatistics. Since the research has been supported with experimental results, the consistency of the results enabled us to define a methodology for single fracture simulation. This methodology successfully modeled the slow rate and pressure drop from fractured core experiments, which were earlier not possible through parallel plate approach. Observations suggest that the fracture aperture needs to be distributed to accurately model the experimental results. The effect of friction and tortuosity due to surface roughness needs to be taken into account while modeling.

David S. Schechter

2002-10-30T23:59:59.000Z

371

Abstract Atmospheric CO2 partial pressure (pCO2) was as low as 18 Pa during the Pleistocene and is projected to  

E-Print Network [OSTI]

Abstract Atmospheric CO2 partial pressure (pCO2) was as low as 18 Pa during the Pleistocene and is projected to increase from 36 to 70 Pa CO2 before the end of the 21st century. High pCO2 often increases the growth and repro- duction of C3 annuals, whereas low pCO2 decreases growth and may reduce or prevent

Antonovics, Janis

372

Origin of the patchy emission pattern at the ZERT CO2 Release Test  

SciTech Connect (OSTI)

A numerical experiment was carried out to test whether the patchy CO{sub 2} emission patterns observed at the ZERT release facility are caused by the presence of packers that divide the horizontal injection well into six CO2-injection zones. A three-dimensional model of the horizontal well and cobble-soil system was developed and simulations using TOUGH2/EOS7CA were carried out. Simulation results show patchy emissions for the seven-packer (six-injection-zone) configuration of the field test. Numerical experiments were then conducted for the cases of 24 packers (23 injection zones) and an effectively infinite number of packers. The time to surface breakthrough and the number of patches increased as the number of packers increased suggesting that packers and associated along pipe flow are the origin of the patchy emissions. In addition, it was observed that early breakthrough occurs at locations where the horizontal well pipe is shallow and installed mostly in soil rather than the deeper cobble. In the cases where the pipe is installed at shallow depths and directly in the soil, higher pipe gas saturations occur than where the pipe is installed slightly deeper in the cobble. It is believed this is an effect mostly relevant to the model rather than the field system and arises through the influence of capillarity, permeability, and pipe elevation of the soil compared to the cobble adjacent to the pipe.

Lewicki, J.L.; Pan, L.; Dobeck, L.; Spangler, L.; Oldenburg, C.M.

2009-10-15T23:59:59.000Z

373

CO2-selective, Hybrid Membranes by Silation of Alumina  

SciTech Connect (OSTI)

Hybrid membranes are feasible candidates for the separation of CO2 from gas produced in coal-based power generation since they have the potential to combine the high selectivity of polymer membranes and the high permeability of inorganic membranes. An interesting method for producing hybrid membranes is the silation of an inorganic membrane. In this method, trichloro- or alkoxy-silanes interact with hydroxyl groups on the surface of ?-AlO3 or TiO2, binding organic groups to that surface. By varying the length of these organic groups on the organosilane, it should be possible to tailor the effective pore size of the membrane. Similarly, the addition of “CO2-phillic” groups to the silating agent allows for the careful control of surface affinity and the enhancement of surface diffusion mechanisms. This method of producing hybrid membranes selective to CO2 was first attempted by Hyun [1] who silated TiO2 with phenyltriethoxysilane. Later, Way [2] silated ?-AlO3 with octadecyltrichlorosilane. Both researchers were successful in producing membranes with improved selectivity toward CO2, but permeability was not maintained at a commercially applicable level. XPS data indicated that the silating agent did not penetrate into the membrane pores and separation actually occurred in a thin “polymer-like” surface layer. The present study attempts to overcome the mass transfer problems associated with this technique by producing the desired monolayer coverage of silane, and thus develop a highly-permeable CO2-selective hybrid membrane.

Luebke, D.R.; Pennline, H.W.

2007-09-01T23:59:59.000Z

374

E-Print Network 3.0 - af co2 fra Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

co2 fra Search Powered by Explorit Topic List Advanced Search Sample search results for: af co2 fra Page: << < 1 2 3 4 5 > >> 1 En femtedel af verdens CO2-udslip stammer fra...

375

EIS-0429: Proposed IG CO2 Pipeline Route | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Proposed IG CO2 Pipeline Route EIS-0429: Proposed IG CO2 Pipeline Route Map of Proposed CO2 Pipeline Route More Documents & Publications EIS-0429: Amended Notice of Intent To...

376

E-Print Network 3.0 - abiotic co2 flows Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

co2 flows Search Powered by Explorit Topic List Advanced Search Sample search results for: abiotic co2 flows Page: << < 1 2 3 4 5 > >> 1 Preindustrial Air-Sea CO2 Flux: Sensitivity...

377

Enhancement of CO2/N2 selectivity in a metal-organic framework by cavity modification  

E-Print Network [OSTI]

electricity is a major source of CO2 in the atmosphere, but the capture and sequestration of CO2 from flue gas two-thirds), CO2, water vapor, oxygen, and minor components such as carbon monoxide, nitrogen oxides

378

Regulation, Allocation, and Leakage in Cap-and-Trade Markets for CO2  

E-Print Network [OSTI]

and Philippe Quirion. Co2 abatement, competitiveness andDaniel Kahn. Allocation of co2 emissions al- lowances in theA short-run case analysis of co2 leakage and nox and so2

Bushnell, Jim B; Chen, Yihsu

2009-01-01T23:59:59.000Z

379

On CO2 Behavior in the Subsurface, Following Leakage from a Geologic Storage Reservoir  

E-Print Network [OSTI]

1 - 16, 1987. Skinner, L. CO2 Blowouts: An Emerging Problem,Assessment for Underground CO2 Storage, paper 234, presentedReservoir Performance Risk in CO2 Storage Projects, paper

Pruess, Karsten

2006-01-01T23:59:59.000Z

380

Leakage of CO2 from geologic storage: Role of secondary accumulation at shallow depth  

E-Print Network [OSTI]

Large Releases from CO2 Storage Reservoirs: Analogs,S.T. Nelson. Natural Leaking CO2-charged Systems as AnalogsY. Sano, and H.U. Schmincke. CO2-rich Gases from Lakes Nyos

Pruess, K.

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

Inventory of China's Energy-Related CO2 Emissions in 2008  

E-Print Network [OSTI]

China’s 2008 Thermal Electricity Sector CO 2 Emissions byheat. Share of thermal electricity sector’s CO 2 emissionsheat. Share of thermal electricity sector’s CO 2 emissions

Fridley, David

2011-01-01T23:59:59.000Z

382

Inventory of China's Energy-Related CO2 Emissions in 2008  

E-Print Network [OSTI]

China's 2008 Total CO 2 Emissions from Energy Consumption:10. China's 2008 Total CO 2 Emissions from Energy: Sectoral16 Table 11. China's 2008 CO 2 Emissions from Energy:

Fridley, David

2011-01-01T23:59:59.000Z

383

Automobile Fuel; Economy and CO2 Emissions in Industrialized Countries: Troubling Trends through 2005/6  

E-Print Network [OSTI]

Energy Savings and CO2 Emissions Implications. J. ofcommitment to reduce CO2 emissions from new passenger carsACEA’s Commitment on CO2 Emission Reductions from Passenger

Schipper, Lee

2008-01-01T23:59:59.000Z

384

Regulation, Allocation, and Leakage in Cap-and-Trade Markets for CO2  

E-Print Network [OSTI]

Daniel Kahn. Allocation of co2 emissions al- lowances in theRasmussen. Allocation of co2 emissions permits: A generalthe aggregate annual CO2 emissions for each of the key

Bushnell, Jim B; Chen, Yihsu

2009-01-01T23:59:59.000Z

385

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

E-Print Network [OSTI]

2050 China Energy and CO2 Emissions Report. Science Press,Energy Savings and CO2 Emissions Reduction of China’s CementEnergy Savings and CO2 Emissions Reduction of China’s Cement

Ke, Jing

2013-01-01T23:59:59.000Z

386

Inventory of China's Energy-Related CO2 Emissions in 2008  

E-Print Network [OSTI]

of unadjusted energy-related CO2 emissions is attributed toEMISSIONS- T C EMISSIONS -T CO2 TOTAL Energy EmissionsEMISSIONS- T C EMISSIONS -T CO2 Coal Coke and Other

Fridley, David

2011-01-01T23:59:59.000Z

387

What Can China Do? China's Best Alternative Outcome for Energy Efficiency and CO2 Emissions  

E-Print Network [OSTI]

China Energy and CO2 Emissions Report (CEACER). Beijing:Oil consumption and CO2 emissions in China’s road transport:Growth, Oil Demand and CO2 Emissions through 2050. Report

G. Fridley, David

2010-01-01T23:59:59.000Z

388

Challenges and opportunities in accounting for non-energy use CO2 emissions: an editorial comment  

E-Print Network [OSTI]

carbon dioxide (NEU-CO2) emissions, represent a signi?cantSimply described, NEU-CO2 emissions are generated via twoData permitting, NEU-CO2 emissions arising from energy

Masanet, Eric; Sathaye, Jayant

2009-01-01T23:59:59.000Z

389

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

E-Print Network [OSTI]

Energy Savings and CO2 Emissions Reduction of China’s CementEnergy Savings and CO2 Emissions Reduction of China’s Cementenergy savings and CO2 emission reduction potentials are

Ke, Jing

2013-01-01T23:59:59.000Z

390

Regulation for Underground Storage of CO2 Passed by U.S. States  

E-Print Network [OSTI]

generation. Its use, therefore, is necessary in order to achieve the CO2 emission reduction targetRegulation for Underground Storage of CO2 Passed by U.S. States Holly Javedan Massachusetts................................................................................................... 8 2.4 CO2 Ownership

391

Thermal desorption of CH4 retained in CO2 ice  

E-Print Network [OSTI]

CO2 ices are known to exist in different astrophysical environments. In spite of this, its physical properties (structure, density, refractive index) have not been as widely studied as those of water ice. It would be of great value to study the adsorption properties of this ice in conditions related to astrophysical environments. In this paper, we explore the possibility that CO2 traps relevant molecules in astrophysical environments at temperatures higher than expected from their characteristic sublimation point. To fulfil this aim we have carried out desorption experiments under High Vacuum conditions based on a Quartz Crystal Microbalance and additionally monitored with a Quadrupole Mass Spectrometer. From our results, the presence of CH4 in the solid phase above the sublimation temperature in some astrophysical scenarios could be explained by the presence of several retaining mechanisms related to the structure of CO2 ice.

R. Luna; C. Millan; M. Domingo; M. A. Satorre

2008-01-21T23:59:59.000Z

392

E-Print Network 3.0 - availability co2-quadrupling experiment...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

co2-quadrupling experiment Search Powered by Explorit Topic List Advanced Search Sample search results for: availability co2-quadrupling experiment Page: << < 1 2 3 4 5 > >> 1...

393

Diesel Passenger Car Technology for Low Emissions and CO2 Compliance...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Passenger Car Technology for Low Emissions and CO2 Compliance Diesel Passenger Car Technology for Low Emissions and CO2 Compliance Cost effective reduction of legislated emissions...

394

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

E-Print Network [OSTI]

dioxide (CO2) emissions from fossil fuel combustion, as wellCO2 emissions (including cement process and fossil fuel combustion

Ke, Jing

2013-01-01T23:59:59.000Z

395

A Feasibility Study of Non-Seismic Geophysical Methods for Monitoring Geologic CO2 Sequestration  

E-Print Network [OSTI]

CO 2 enhanced oil recovery (EOR) and sequestration in athe measurement configuration. EOR/sequestration projects inshow that a CO 2 –based EOR could increase oil recovery by

Gasperikova, Erika; Hoversten, G. Michael

2006-01-01T23:59:59.000Z

396

The Influence of a CO2 Pricing Scheme on Distributed Energy Resources in California's Commercial Buildings  

E-Print Network [OSTI]

The Influence of a CO2 Pricing Scheme on Distributed Energy5. Regional Results for the CO2 Pricing Scheme no-invest

Stadler, Michael

2010-01-01T23:59:59.000Z

397

Use of experience curves to estimate the future cost of power plants with CO2 capture  

E-Print Network [OSTI]

2004. Experience curves for power plant emission controlassessments of fossil fuel power plants with CO 2 capturethe future cost of power plants with CO 2 capture Edward S.

Rubin, Edward S.; Yeh, Sonia; Antes, Matt; Berkenpas, Michael; Davison, John

2007-01-01T23:59:59.000Z

398

Leakage of CO2 from geologic storage: Role of secondary accumulation at shallow depth  

E-Print Network [OSTI]

adiabatic (= no external heat supply) expansion of CO 2 toCO 2 without external heat supply will cause temperatures toenables more sustained heat supply from the surroundings,

Pruess, K.

2008-01-01T23:59:59.000Z

399

Automobile Fuel; Economy and CO2 Emissions in Industrialized Countries: Troubling Trends through 2005/6  

E-Print Network [OSTI]

s Commitment on CO2 Emission Reductions from Passenger Cars.is a small extra reduction in CO2 emissions per km due to a

Schipper, Lee

2008-01-01T23:59:59.000Z

400

Matrix Shrinkage and Swelling Effects on Economics of Enhanced Coalbed Methane Production and CO2 Sequestration in Coal  

SciTech Connect (OSTI)

Increases in CO2 levels in the atmosphere and their contributions to global climate change have been a major concern. It has been shown that CO2 injection can enhance the methane recovery from coal. Accordingly, sequestration costs can be partially offset by the value added product. Indeed, coal seam sequestration may be profitable, particularly with the introduction of incentives for CO2 sequestration. Hence, carbon dioxide sequestration in unmineable coals is a very attractive option, not only for environmental reasons, but also for possible economic benefits. Darcy flow through cleats is an important transport mechanism in coal. Cleat compression and permeability changes due to gas sorption desorption, changes of effective stress, and matrix swelling and shrinkage introduce a high level of complexity into the feasibility of a coal sequestration project. The economic effects of carbon dioxide-induced swelling on permeabilities and injectivities has received little (if any) detailed attention. Carbon dioxide and methane have different swelling effects on coal. In this work, the Palmer-Mansoori model for coal shrinkage and permeability increases during primary methane production was re-written to also account for coal swelling caused by carbon dioxide sorption. The generalized model was added to PSU-COALCOMP, a dual porosity reservoir simulator for primary and enhanced coalbed methane production. A standard five-spot of vertical wells and representative coal properties for Appalachian coals were used.[1] Simulations and sensitivity analyses were performed with the modified simulator for nine different parameters, including coal seam and operational parameters and economic criteria. The coal properties and operating parameters that were varied included Young’s modulus, Poisson’s ratio, the cleat porosity, and the injection pressure. The economic variables included CH4 price, CO2 cost, CO2 credit, water disposal cost, and interest rate. Net present value analyses of the simulation results included profits due to methane production, and potential incentives for CO2 sequestered. This work shows that for some coal-property values, the compressibility and cleat porosity of coal may be more important than more purely economic criteria.

Gorucu, F.B.; Jikich, S.A.; Bromhal, G.S.; Sams, W.N.; Ertekin, T.; Smith, D.H.

2005-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "initiates co2 injection" 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

SecuestrodeCO2enestructurasgeolgicas Modelacin numrica de  

E-Print Network [OSTI]

Kioto Responsables del 55% de las emisiones se comprometen reducir en 5% el total de emisiones respecto forma diferente A España le corresponde no aumentar en mas de 15% sus emisiones respecto a 1990 En 2006enestructurasgeológicas Una forma de disminuir emisiones: Almacenamiento de CO2 en estructuras geológicas Yacimientos de

Politècnica de Catalunya, Universitat

402

Center for By-Products Utilization CO2 SEQUESTRATION  

E-Print Network [OSTI]

Center for By-Products Utilization CO2 SEQUESTRATION IN NON-AIR ENTRAINED CONCRETE By Tarun R. Naik. Maximize environmental benefits: resource conservation, clean water, and clean air. #12;Center for By-Products, Italy, June 30, 2010. #12;Center for By-Products Utilization UWM Center for By-Products Utilization

Saldin, Dilano

403

UPDATE ON THE INTERNATIONAL EXPERIMENT ON CO2 OCEAN SEQUESTRATION  

E-Print Network [OSTI]

in the deep ocean, forming a buoyant plume. Sea water will be entrained into the rising droplet plume Center, Bergen, Norway 4 Norwegian Institute for Water Research (NIVA), Bergen, Norway 5 University objective of our project on CO2 ocean sequestration is to investigate its technical feasibility

404

ORIGINAL ARTICLE Navajo SandstonebrineCO2 interaction: implications  

E-Print Network [OSTI]

in the western US (Loope and Rowe 2003), and is thus potentially sig- nificant with respect to carbonORIGINAL ARTICLE Navajo Sandstone­brine­CO2 interaction: implications for geological carbon a source of carbon for the precipitation of carbonate minerals. Mineral trapping through the precipitation

Zhu, Chen

405

The contribution of CO2 capture and storage  

E-Print Network [OSTI]

The contribution of CO2 capture and storage to a sustainable energy system Policy brief of Energy Models for INtegrated Technology Systems' is partially funded by the EU under the Scientific.html. The following partners are involved in Part 2 of the CASCADE MINTS project: · Energy research Centre

406

The Energy and CO2 Emissions Impact of  

E-Print Network [OSTI]

centers at MIT: the Center for Global Change Science (CGCS) and the Center for Energy and Environmental reduction target of 40­45% relative to 2005 and a non-fossil primary energy target of 15% by 2020. DuringThe Energy and CO2 Emissions Impact of Renewable Energy Development in China Xiliang Zhang, Tianyu

407

CO2-avskiljning med syrgasfrbrnning -nya tekniska mjligheter  

E-Print Network [OSTI]

with power and industrial sectors #12;Air-Fuel Combustion Air Fuel Flue gas CO2: 10-20 % N2: 60-70% Combustion Process #12;Oxy-Fuel vs. Air-Fuel Combustion - principle changes Principle changes: · Feed gas composition · Concentration of N2 · Recycle of flue gas · Concentration of combustion products · Residence

Lemurell, Stefan

408

Carbonation: An Efficient and Economical Process for CO2 Sequestration  

E-Print Network [OSTI]

Carbonation: An Efficient and Economical Process for CO2 Sequestration Tarun R Naik1 and Rakesh sequestration. Most of the studies related to the carbonation are limited to its effects on corrosion. The possibility of using carbonation process as a direct means for carbon dioxide sequestration is yet

Wisconsin-Milwaukee, University of

409

Chemical Looping Combustion for inherent CO2 capture in a  

E-Print Network [OSTI]

HRSG Stack Steam TurbineFuel Compr. Air Flue gas H2O CO2 to compression Depleted air HP Steam not possible with Ni/NiO 6 CLC in a combined cycle power plant Fuel Reactor Air Reactor Gas Turbine Gas Turbine) ­ adiabatic, 20 bar Stoichiometric MeO Air-fuel ratio Stoichiometric ­ 3*Stoicihometric Gas turbine

410

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

E-Print Network [OSTI]

efficiency and CO2 Emission-reduction Technologies forefficiency and CO2 Emission- reduction Technologies forefficiency and CO2 Emission-reduction Technologies The

Hasanbeigi, Ali

2014-01-01T23:59:59.000Z

411

ACID GASES IN CO2-RICH SUBSURFACE GEOLOGIC ENVIRONMENTS  

SciTech Connect (OSTI)

The analysis of species behavior involving dilute fluid environments has been crucial for the advance of modern solvation thermodynamics through molecular-based formalisms to guide the development of macroscopic regression tools in the description of fluid behavior and correlation of experimental data (Chialvo 2013). Dilute fluid environments involving geologic formations are of great theoretical and practical relevance regardless of the thermodynamic state conditions. The most challenging systems are those involving highly compressible and reactive confined environments, i.e., where small perturbations of pressure and/or temperature can trigger considerable density changes. This in turn can alter significantly the species solvation, their preferential solvation, and consequently, their reactivity with one another and with the surrounding mineral surfaces whose outcome is the modification of the substrate porosity and permeability, and ultimately, the integrity of the mineral substrates. Considering that changes in porosity and permeability resulting from dissolution and precipitation phenomena in confined environments are at the core of the aqueous CO2-mineral interactions, and that caprock integrity (e.g., sealing capacity) depends on these key parameters, it is imperative to gain fundamental understanding of the mineral-fluid interfacial phenomena and fluid-fluid equilibria under mineral confinement at subsurface conditions. In order to undertand the potential effects of acid gases as contaminants of supercritical CO2 streams, in the next section we will discuss the thermodynamic behavior of CO2 fluid systems by addressing two crucial issues in the context of carbon capture, utilization and sequestration (CCUS) technologies: (i) Why should we consider (acid gas) CO2 impurities? and (ii) Why are CO2 fluid - mineral interactions of paramount relevance?

Chialvo, Ariel A [ORNL] [ORNL; Vlcek, Lukas [ORNL] [ORNL; Cole, David [Ohio State University] [Ohio State University

2013-01-01T23:59:59.000Z

412

High Fidelity Computational Analysis of CO2 Trapping at Pore Scales  

SciTech Connect (OSTI)

With an alarming rise in carbon dioxide (CO2) emission from anthropogenic sources, CO2 sequestration has become an attractive choice to mitigate the emission. Some popular storage media for CO{sub 2} are oil reservoirs, deep coal-bed, and deep oceanic-beds. These have been used for the long term CO{sub 2} storage. Due to special lowering viscosity and surface tension property of CO{sub 2}, it has been widely used for enhanced oil recovery. The sites for CO{sub 2} sequestration or enhanced oil recovery mostly consist of porous rocks. Lack of knowledge of molecular mobility under confinement and molecule-surface interactions between CO2 and natural porous media results in generally governed by unpredictable absorption kinetics and total absorption capacity for injected fluids, and therefore, constitutes barriers to the deployment of this technology. Therefore, it is important to understand the flow dynamics of CO{sub 2} through the porous microstructures at the finest scale (pore-scale) to accurately predict the storage potential and long-term dynamics of the sequestered CO{sub 2}. This report discusses about pore-network flow modeling approach using variational method and analyzes simulated results this method simulations at pore-scales for idealized network and using Berea Sandstone CT scanned images. Variational method provides a promising way to study the kinetic behavior and storage potential at the pore scale in the presence of other phases. The current study validates variational solutions for single and two-phase Newtonian and single phase non-Newtonian flow through angular pores for special geometries whose analytical and/or empirical solutions are known. The hydraulic conductance for single phase flow through a triangular duct was also validated against empirical results derived from lubricant theory.

Kumar, Vinod

2013-07-13T23:59:59.000Z

413

Developing a monitoring and verification plan with reference to the Australian Otway CO2 pilot project  

SciTech Connect (OSTI)

The Australian Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) is currently injecting 100,000 tons of CO{sub 2} in a large-scale test of storage technology in a pilot project in southeastern Australia called the CO2CRC Otway Project. The Otway Basin, with its natural CO{sub 2} accumulations and many depleted gas fields, offers an appropriate site for such a pilot project. An 80% CO{sub 2} stream is produced from a well (Buttress) near the depleted gas reservoir (Naylor) used for storage (Figure 1). The goal of this project is to demonstrate that CO{sub 2} can be safely transported, stored underground, and its behavior tracked and monitored. The monitoring and verification framework has been developed to monitor for the presence and behavior of CO{sub 2} in the subsurface reservoir, near surface, and atmosphere. This monitoring framework addresses areas, identified by a rigorous risk assessment, to verify conformance to clearly identifiable performance criteria. These criteria have been agreed with the regulatory authorities to manage the project through all phases addressing responsibilities, liabilities, and to assure the public of safe storage.

Dodds, K.; Daley, T.; Freifeld, B.; Urosevic, M.; Kepic, A.; Sharma, S.

2009-05-01T23:59:59.000Z

414

Ris Energy Report 6 CO2 capture and storage 2 6.1 What is CO2 capture and storage?  

E-Print Network [OSTI]

be burned in an engine or fuel cell, and a CO2 stream for storage (see chapters 7.3 and 7.6 for further2 Gas, oil Air O2 H2 Raw material Gas, ammonia, steel Air/O2 Steam Figure 15: the three main

415

A Review of Hazardous Chemical Species Associated with CO2 Capture from Coal-Fired Power Plants and Their Potential Fate in CO2 Geologic Storage  

E-Print Network [OSTI]

capture of CO 2 from gasifier process producing electricalPlaquemine, Louisiana. The gasifier is a proprietary designGasifier .

Apps, J.A.

2006-01-01T23:59:59.000Z

416

Mathematical models as tools for probing long-term safety of CO2 storage  

E-Print Network [OSTI]

reservoirs, with large capacity for CO 2 storage (Bradshaw and Dance, 2004; Bachu, 2008). Improperly abandoned

Pruess, Karsten

2010-01-01T23:59:59.000Z

417

The Anthropogenic Perturbation of Atmospheric CO2 and the Climate System  

E-Print Network [OSTI]

of carbon dioxide (CO2), a powerful greenhouse gas (GHG), are redistributed within the climate system

Fortunat, Joos

418

Constraint of the CO2 rise by new atmospheric carbon isotopic measurements during the last deglaciation  

E-Print Network [OSTI]

Click Here for Full Article Constraint of the CO2 rise by new atmospheric carbon isotopic increase of atmospheric carbon dioxide (CO2) during the last glacialinterglacial climatic transition remain debated. We analyzed the parallel evolution of CO2 and its stable carbon isotopic ratio (d13 CO2

Chappellaz, Jérôme

419

CO2 efflux from Amazonian headwater streams represents a significant fate for deep soil respiration  

E-Print Network [OSTI]

CO2 efflux from Amazonian headwater streams represents a significant fate for deep soil respiration amounts of CO2 to the atmosphere, while the magnitude of CO2 degassing from small streams remains a major was as terrestrially-respired CO2 dissolved within soils, over 90% of which evaded to the atmosphere within headwater

Lehmann, Johannes

420

Large CO2 disequilibria in tropical lakes Humberto Marotta,1,2  

E-Print Network [OSTI]

Large CO2 disequilibria in tropical lakes Humberto Marotta,1,2 Carlos M. Duarte,2 Sebastian Sobek,3 November 2009. [1] On the basis of a broad compilation of data on pCO2 in surface waters, we show tropical lakes to be, on average, far more supersaturated and variable in CO2 (geometric mean ± SE pCO2 = 1804

Wehrli, Bernhard

Note: This page contains sample records for the topic "initiates co2 injection" 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

Observations and simulations of synoptic, regional, and local variations in atmospheric CO2  

E-Print Network [OSTI]

Observations and simulations of synoptic, regional, and local variations in atmospheric CO2 Jih] Synoptic events may play an important role in determining the CO2 spatial distribution and temporal 2001, which had the most significant CO2 concentration variation in our case pool. The CO2

Collett Jr., Jeffrey L.

422

Physical controls on the isotopic composition of soil-respired CO2  

E-Print Network [OSTI]

Physical controls on the isotopic composition of soil-respired CO2 Nick Nickerson1 and Dave Risk1] Measurement of the isotopic composition of soil and soil-respired CO2 (d13 CO2) has become an invaluable tool in understanding the effects of diffusive transport on soil CO2 isotopic composition, it is crucial

423

Edinburgh Research Explorer Can seasonal and interannual variation in landscape CO2 fluxes  

E-Print Network [OSTI]

Edinburgh Research Explorer Can seasonal and interannual variation in landscape CO2 fluxes be detected by atmospheric observations of CO2 concentrations made at a tall tower? Citation for published in landscape CO2 fluxes be detected by atmospheric observations of CO2 concentrations made at a tall tower

Millar, Andrew J.

424

Extracting CO2 from seawater: Climate change mitigation and renewable liquid fuel  

E-Print Network [OSTI]

Extracting CO2 from seawater: Climate change mitigation and renewable liquid fuel Matthew Eisaman and their impact · Technology: Extracting CO2 from seawater · Application: Renewable liquid fuel #12;Outline: Renewable liquid fuel #12;The data on atmospheric CO2 2000 years ago http://cdiac.ornl.gov/trends/co2

Homes, Christopher C.

425

CO2 Capture and Utilization for Enhanced Oil Poul Jacob Vilhelmsen1  

E-Print Network [OSTI]

for Enhanced Oil Recovery (EOR). CO2 capture is to some extent a know technology but has not yet been optimised and commercialised for power plant utilisation. Correspondingly CO2 utilisation for EOR is a known method in other and utilisation of CO2. DONG E&P within DONG Energy has started work on the utilisation of CO2 for EOR

426

Wavelength dependence of prepulse laser beams on EUV emission from CO2 reheated Sn plasma  

E-Print Network [OSTI]

Wavelength dependence of prepulse laser beams on EUV emission from CO2 reheated Sn plasma J. R. The expanding plume was then reheated by a 35 ns CO2 laser operating at 10.6 m. The role of prepulse wavelength, Tanaka et al.11 demonstrated the advantages of using a CO2 laser for generating higher CE. The CO2 LPP

Harilal, S. S.

427

Carbonation of alkaline paper mill waste to reduce CO2 greenhouse gas emissions into the atmosphere  

E-Print Network [OSTI]

Carbonation of alkaline paper mill waste to reduce CO2 greenhouse gas emissions into the atmosphere of anthropogenic emission of greenhouse gases into the atmosphere such as CO2, CH4, N2O and CFCs. The CO2 emissions to reflect, adsorb and emit the solar energy. However, the continuous emissions of CO2 into the atmosphere

Montes-Hernandez, German

428

Stomatal proxy record of CO2 concentrations from the last termination suggests an important role for CO2 at climate change transitions  

E-Print Network [OSTI]

Stomatal proxy record of CO2 concentrations from the last termination suggests an important role for CO2 at climate change transitions Margret Steinthorsdottir a,*, Barbara Wohlfarth a , Malin E2 reconstruction Betula nana Sweden a b s t r a c t A new stomatal proxy-based record of CO2

Wohlfarth, Barbara

429

1M. Panahi, S. Skogestad ' Optimal Operation of a CO2 Capturing Plant for a Wide Range of Disturbances' Optimal Operation of a CO2 Capturing  

E-Print Network [OSTI]

1M. Panahi, S. Skogestad ' Optimal Operation of a CO2 Capturing Plant for a Wide Range of Disturbances' Optimal Operation of a CO2 Capturing Plant for a Wide Range of Disturbances Mehdi Panahi Sigurd Skogestad 18.10.2011 AIChE Annual Meeting #12;2M. Panahi, S. Skogestad ' Optimal Operation of a CO2

Skogestad, Sigurd

430

ULTimateCO2 : A FP7 European Project dedicated to the understanding of the long term fate of geologically stored CO2  

E-Print Network [OSTI]

ULTimateCO2 : A FP7 European Project dedicated to the understanding of the long term fate of geologically stored CO2 Audigane, P.1 , Brown, S.2 , Dimier A.3 , Frykman P.4 , Gherardi F.5 , Le Gallo Y.6 Recherches Géologiques et minières - France 2 CO2SENSE limited, United Kingdom 3 EIFER, EIFER europaisches

Paris-Sud XI, Université de

431

In Situ Study of CO2 and H2O Partitioning Between Na-Montmorillonite and Variably Wet Supercritical Carbon Dioxide  

SciTech Connect (OSTI)

Shale formations play fundamental roles in large-scale geologic carbon sequestration (GCS) aimed primarily to mitigate climate change, and in smaller-scale GCS targeted mainly for CO2-enhanced gas recovery operations. In both technologies, CO2 is injected underground as a supercritical fluid (scCO2), where interactions with shale minerals could influence successful GCS implementation. Reactive components of shales include expandable clays, such as montmorillonites and mixed-layer illite/smectite clays. In this work, we used in situ X-ray diffraction (XRD) and in situ infrared (IR) spectroscopy to investigate the swelling/shrinkage and water/CO2 sorption of a pure montmorillonite, Na-SWy-2, when the clay is exposed to variably hydrated scCO2 at 50 °C and 90 bar. Measured interlayer spacings and sorbed water concentrations at varying levels of scCO2 hydration are similar to previously reported values measured in air at ambient pressure over a range of relative humidities. IR spectra show evidence of both water and CO2 intercalation, and variations in peak shapes and positions suggest multiple sorbed types with distinct chemical environments. Based on the intensity of the asymmetric CO stretching band of the CO2 associated with the Na-SWy-2, we observed a significant increase in sorbed CO2 as the clay expands from a 0W to a 1W state, suggesting that water props open the interlayer so that CO2 can enter. However, as the clay transitions from a 1W to a 2W state, CO2 desorbs sharply. These observations were placed in the context of two conceptual models concerning hydration mechanisms for expandable clays and were also discussed in light of recent theoretical studies on CO2-H2O-clay interactions. The swelling/shrinkage of expandable clays could affect solid volume, porosity, and permeability of shales. Consequently, the results from this work could aid predictions of shale caprock integrity in large-scale GCS, as well as methane transmissivity in enhanced gas recovery operations.

Loring, John S.; Ilton, Eugene S.; Chen, Jeffrey; Thompson, Christopher J.; Martin, Paul F.; Benezeth, Pascale; Rosso, Kevin M.; Felmy, Andrew R.; Schaef, Herbert T.

2014-06-03T23:59:59.000Z

432

Summary Report on CO2 Geologic Sequestration & Water Resources Workshop  

E-Print Network [OSTI]

noise logging for injection well integrity. Technical Reportto what level of well-integrity and monitoring requirementsdeep) for testing of well integrity and has been used in the

Varadharajan, C.

2013-01-01T23:59:59.000Z

433

Evaluation of the environmental viability of direct injection schemes for ocean carbon sequestration  

E-Print Network [OSTI]

This thesis evaluates the expected impact of several promising schemes for ocean carbon sequestration by direct injection of CO2, and serves as an update to the assessment by Auerbach et al. (1997) and Caulfield et al. ...

Israelsson, Peter H. (Peter Hampus), 1973-

2008-01-01T23:59:59.000Z

434

Assessment of Energy Efficiency Improvement and CO2 Emission Reduction Potentials in India's Iron and Steel Industry  

E-Print Network [OSTI]

Efficiency Improvement and CO2 Emission Reduction PotentialsModel Inputs Emissions Factors CO2 Emission factor for grid electricity (tonne CO2/MWh)  CO2 Emission factor for fuel (

Morrow III, William R.

2014-01-01T23:59:59.000Z

435

Incorporating the Effect of Price Changes on CO2-Equivalent Emissions From Alternative-Fuel Lifecycles: Scoping the Issues  

E-Print Network [OSTI]

function of CO2 taxes (or CO2 emission limits) 10 . b) Taxesrefinery process areas CO2 emissions from the control of COfertilizer use. CH4 and CO2 emissions from soil (parameters

Delucchi, Mark

2005-01-01T23:59:59.000Z

436

Identification of Fragile Microscopic Structures during Mineral Transformations in Wet Supercritical CO2  

SciTech Connect (OSTI)

In this study we examine the nature of highly fragile reaction products that form in low water content super critical carbon dioxide (scCO2) using a combination of scanning electron microscopy/focus ion beam (SEM/FIB), confocal Raman spectroscopy, helium ion microscopy (HeIM), and transmission electron microscopy (TEM). HeIM images show these precipitates to be fragile rosettes that can readily decompose even under slight heating from an electron beam. Using the TEM revealed details on the interfacial structure between the newly formed surface precipitates and the underlying initial solid phases. The detailed microscopic analysis revealed that the growth of the precipitates either followed a tip growth mechanism with precipitates forming directly on the forsterite surface if the initial solid was non-porous (natural forsterite) or growth from the surface of the precipitates where fluid was conducted through the porous (nanoforsterite) agglomerates to the growth center. The mechanism of formation of the hydrated/hydroxylated magnesium carbonate compound (HHMC) phases offers insight into the possible mechanisms of carbonate mineral formation from scCO2 solutions which has recently received a great deal of attention as the result of the potential for CO2 to act as an atmospheric greenhouse gas and impact overall global warming. The techniques used here to examine these fragile structures an also be used to examine a wide range of fragile material surfaces. SEM and FIB technologies have now been brought together in a single instrument, which represents a powerful combination for the studies in biological, geological and materials science.

Arey, Bruce W.; Kovarik, Libor; Qafoku, Odeta; Wang, Zheming; Hess, Nancy J.; Felmy, Andrew R.

2013-04-01T23:59:59.000Z

437

Up-Scaling Geochemical Reaction Rates for Carbon Dioxide (CO2) in Deep Saline Aquifers  

SciTech Connect (OSTI)

Geochemical reactions in deep subsurface environments are complicated by the consolidated nature and mineralogical complexity of sedimentary rocks. Understanding the kinetics of these reactions is critical to our ability to make long-term predictions about subsurface processes such as pH buffering, alteration in rock structure, permeability changes, and formation of secondary precipitates. In this project, we used a combination of experiments and numerical simulation to bridge the gap between our knowledge of these reactions at the lab scale and rates that are meaningful for modeling reactive transport at core scales. The focus is on acid-driven mineral dissolution, which is specifically relevant in the context of CO2-water-rock interactions in geological sequestration of carbon dioxide. The project led to major findings in three areas. First, we modeled reactive transport in pore-network systems to investigate scaling effects in geochemical reaction rates. We found significant scaling effects when CO2 concentrations are high and reaction rates are fast. These findings indicate that the increased acidity associated with geological sequestration can generate conditions for which proper scaling tools are yet to be developed. Second, we used mathematical modeling to investigate the extent to which SO2, if co-injected with CO2, would acidify formation brines. We found that there exist realistic conditions in which the impact on brine acidity will be limited due to diffusion rate-limited SO2 dissolution from the CO2 phase, and the subsequent pH shift may also be limited by the lack of availability of oxidants to produce sulfuric acid. Third, for three Viking sandstones (Alberta sedimentary basin, Canada), we employed backscattered electron microscopy and energy dispersive X-ray spectroscopy to statistically characterize mineral contact with pore space. We determined that for reactive minerals in sedimentary consolidated rocks, abundance alone is not a good predictor of mineral accessible surface area, and should not be used in reactive transport modeling. Our work showed that reaction rates would be overestimated by three to five times.

Peters, Catherine A

2013-02-28T23:59:59.000Z

438

Separation of CO2 from flue gas using electrochemical cells  

SciTech Connect (OSTI)

ABSTRACT Past research with high temperature molten carbonate electrochemical cells has shown that carbon dioxide can be separated from flue gas streams produced by pulverized coal combustion for power generation, However, the presence of trace contaminants, i.e" sulfur dioxide and nitric oxides, will impact the electrolyte within the cell. If a lower temperature cell could be devised that would utilize the benefits of commercially-available, upstream desulfurization and denitrification in the power plant, then this CO2 separation technique can approach more viability in the carbon sequestration area, Recent work has led to the assembly and successful operation of a low temperature electrochemical cell. In the proof-of-concept testing with this cell, an anion exchange membrane was sandwiched between gas-diffusion electrodes consisting of nickel-based anode electrocatalysts on carbon paper. When a potential was applied across the cell and a mixture of oxygen and carbon dioxide was flowed over the wetted electrolyte on the cathode side, a stream of CO2 to O2 was produced on the anode side, suggesting that carbonate/ bicarbonate ions are the CO2 carrier in the membrane. Since a mixture of CO 2 and 02 is produced, the possibility exists to use this stream in oxy-firing of additional fuel. From this research, a novel concept for efficiently producing a carbon dioxide rich effiuent from combustion of a fossil fuel was proposed. Carbon dioxide and oxygen are captured from the flue gas of a fossilfuel combustor by one or more electrochemical cells or cell stacks. The separated stream is then transferred to an oxy-fired combustor which uses the gas stream for ancillary combustion, ultimately resulting in an effluent rich in carbon dioxide, A portion of the resulting flow produced by the oxy-fired combustor may be continuously recycled back into the oxy-fired combustor for temperature control and an optimal carbon dioxide rich effluent.

Pennline, H.W; Granite, E.J.; Luebke, D.R; Kitchin, J.R; Landon, J.; Weiland, L.M.

2010-06-01T23:59:59.000Z

439

Photodesorption of ices I: CO, N2 and CO2  

E-Print Network [OSTI]

A longstanding problem in astrochemistry is how molecules can be maintained in the gas phase in dense inter- and circumstellar regions. Photodesorption is a non-thermal desorption mechanism, which may explain the small amounts of observed cold gas in cloud cores and disk mid-planes. This paper aims to determine the UV photodesorption yields and to constrain the photodesorption mechanisms of three astrochemically relevant ices: CO, N2 and CO2. In addition, the possibility of co-desorption in mixed and layered CO:N2 ices is explored. The ice photodesorption is studied experimentally under ultra high vacuum conditions and at 15-60 K using a hydrogen discharge lamp (7-10.5 eV). The ice desorption during irradiation is monitored by reflection absorption infrared spectroscopy of the ice and simultaneous mass spectrometry of the desorbed molecules. Both the UV photodesorption yields per incident photon and the photodesorption mechanisms are molecule specific. CO photodesorbs without dissociation from the surface layer of the ice. N2, which lacks an electronic transition in this wavelength range, has a photodesorption yield that is more than an order of magnitude lower. This yield increases significantly due to co-desorption when N2 is mixed in with or layered on top of CO ice. CO2 photodesorbs through dissociation and subsequent recombination from the top 10 layers of the ice. At low temperatures (15-18 K) the derived photodesorption yields are 2.7x10^-3 and CO2 photodesorption yield is 1.2x10^-3x(1-e^(-X/2.9)) + 1.1x10^-3x(1-e^(-X/4.6)) molecules photon-1, where X is the ice thickness in monolayers and the two parts of the expression represent a CO2 and CO photodesorption pathway.

Karin I. Oberg; Ewine F. van Dishoeck; Harold Linnartz

2009-01-23T23:59:59.000Z

440

Meeting the CO2 Challenge DEER 2002 | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department of EnergyDevelopmentTechnologies | DepartmentADVISORYFinal Report onthe CO2

Note: This page contains sample records for the topic "initiates co2 injection" 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

Grangemouth Advanced CO2 Capture Project GRACE | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio: Energy ResourcesGordon, Alabama:5812144°Grangemouth Advanced CO2

442

Economically Efficient Operation of CO2 Capturing Process Part I: Self-optimizing Procedure for Selecting the Best Controlled Variables  

E-Print Network [OSTI]

the greenhouse gas CO2 that causes global warming. Due to the effect of CO2 emissions on global warming

Skogestad, Sigurd

443

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

E-Print Network [OSTI]

Improvement and CO2 Emission Reduction Potentials in theElectricity Saving and CO2 Emission Reduction in the Iron

Hasanbeigi, Ali

2013-01-01T23:59:59.000Z

444

CO2-Brine Surface Dissolution and Injection: CO2 Storage Enhancement Paul Emeka Eke, SPE, Mark Naylor, Stuart Haszeldine and Andrew Curtis, Scottish Centre for Carbon Storage,  

E-Print Network [OSTI]

are population increase, per capita GDP (also known as ``affluence level''), the energy intensity of the economy by the gross domestic product, GDP), energy production, E, carbon-based fuels used for energy production, C (E/GDP) and the carbon intensity of the energy system (C/E). The term E/GDP reflects the sectorial

445

Adsorption and Strain: The CO2-Induced Swelling of Coal  

E-Print Network [OSTI]

.07.014 #12;Abstract Enhanced coal bed methane recovery (ECBM) consists in injecting carbon dioxide in coal bed methane reservoirs in order to facilitate the recovery of the methane. The injected carbon dioxide as Coal Bed Methane (CBM)- has amounted in 2008 to about 10% of the total natural gas production

Paris-Sud XI, Université de

446

Laboratory Experiments to Stimulate CO(2) Ocean Disposal  

SciTech Connect (OSTI)

This Technical Progress Report summarizes activities conducted over the period 8/16/96-2/15/97 as part of this project. This investigation responds to the possibility that restrictions on greenhouse gas emissions may be imposed in the future to comply with the Framework Convention on Climate Change. The primary objective of the investigation is to obtain experimental data that can be applied to assess the technical feasibility and environmental impacts of oceanic containment strategies to limit release of carbon dioxide (CO{sub 2}) from coal and other fossil fuel combustion systems into the atmosphere. Critical technical uncertainties of ocean disposal of CO{sub 2} will be addressed by performing experiments that: (1) characterize size spectra and velocities of a dispersed CO{sub 2} phase in the near-field of a discharge jet; and (2) estimate rates of mass transfer from dissolving droplets of liquid CO{sub 2} encased in a thin hydrate shell. Experiments will be conducted in a laboratory facility that can reproduce conditions in the ocean to depths of 600 m (1,969 ft). Between 8/16/96 and 2/15/97, activities focused on modifications to the experimental apparatus and the testing of diagnostics. Following completion of these tasks, experiments will be initiated and will continue through the end of the 36 month period of performance. Major accomplishments of this reporting period were: (1) delivery, set-up, and testing of the PDPA (Phase Doppler Particle Analyzer), which will be the principal diagnostic of the continuous CO{sub 2} jet injection tests; (2) presentation of research papers and posters at the 212th American Chemical Society National Meeting and the Third International Conference on Carbon Dioxide Removal; (3) participation in the 4th Expert Workshop on Ocean Storage of Carbon Dioxide; (4) execution of an Agreement with ABB Management, Ltd. to support and extend the activities of this grant; and (5) initiation of research collaborations with Dr. P.M. Haugen of the University of Bergen, Norway, and Dr. A. Yamasaki of the National Institute of Materials and Chemical Research, Japan.

Masutani, S.M.

1997-03-12T23:59:59.000Z

447

CO2 Sequestration Potential of Texas Low-Rank Coals  

SciTech Connect (OSTI)

The objectives of this project are to evaluate the feasibility of carbon dioxide (CO{sub 2}) sequestration in Texas low-rank coals and to determine the potential for enhanced coalbed methane (ECBM) recovery as an added benefit of sequestration. The main objectives for this reporting period were to perform reservoir simulation and economic sensitivity studies to (1) determine the effects of injection gas composition, (2) determine the effects of injection rate, and (3) determine the effects of coal dewatering prior to CO{sub 2} injection on CO{sub 2} sequestration in the Lower Calvert Bluff Formation (LCB) of the Wilcox Group coals in east-central Texas. To predict CO{sub 2} sequestration and ECBM in LCB coal beds for these three sensitivity studies, we constructed a 5-spot pattern reservoir simulation model and selected reservoir parameters representative of a typical depth, approximately 6,200-ft, of potential LCB coalbed reservoirs in the focus area of East-Central Texas. Simulation results of flue gas injection (13% CO{sub 2} - 87% N{sub 2}) in an 80-acre 5-spot pattern (40-ac well spacing) indicate that LCB coals with average net thickness of 20 ft can store a median value of 0.46 Bcf of CO{sub 2} at depths of 6,200 ft, with a median ECBM recovery of 0.94 Bcf and median CO{sub 2} breakthrough time of 4,270 days (11.7 years). Simulation of 100% CO{sub 2} injection in an 80-acre 5-spot pattern indicated that these same coals with average net thickness of 20 ft can store a median value of 1.75 Bcf of CO{sub 2} at depths of 6,200 ft with a median ECBM recovery of 0.67 Bcf and median CO{sub 2} breakthrough time of 1,650 days (4.5 years). Breakthrough was defined as the point when CO{sub 2} comprised 5% of the production stream for all cases. The injection rate sensitivity study for pure CO{sub 2} injection in an 80-acre 5-spot pattern at 6,200-ft depth shows that total volumes of CO{sub 2} sequestered and methane produced do not have significant sensitivity to injection rate. The main difference is in timing, with longer breakthrough times resulting as injection rate decreases. Breakthrough times for 80-acre patterns (40-acre well spacing) ranged from 670 days (1.8 years) to 7,240 days (19.8 years) for the reservoir parameters and well operating conditions investigated. The dewatering sensitivity study for pure CO{sub 2} injection in an 80-acre 5-spot pattern at 6,200-ft depth shows that total volumes of CO{sub 2} sequestered and methane produced do not have significant sensitivity to dewatering prior to CO{sub 2} injection. As time to start CO{sub 2} injection increases, the time to reach breakthrough also increases. Breakthrough times for 80-acre patterns (40-acre well spacing) ranged from 850 days (2.3 years) to 5,380 days (14.7 years) for the reservoir parameters and well injection/production schedules investigated. Preliminary economic modeling results using a gas price of $7-$8 per Mscf and CO{sub 2} credits of $1.33 per ton CO{sub 2} indicate that injection of flue gas (87% N{sub 2}-13% CO{sub 2}) and 50% N{sub 2}-50% CO{sub 2} are more economically viable than injecting 100% CO{sub 2}. Results also indicate that injection rate and duration and timing of dewatering prior to CO{sub 2} injection have no significant effect on the economic viability of the project(s).

Duane A. McVay; Walter B. Ayers Jr; Jerry L. Jensen

2005-10-01T23:59:59.000Z

448

STOMP Subsurface Transport Over Multiple Phases: STOMP-CO2 and STOMP-CO2e Guide: Version 1.0  

SciTech Connect (OSTI)

This STOMP (Subsurface Transport Over Multiple Phases) guide document describes the theory, use, and application of the STOMP-CO2 and STOMP-CO2e operational modes. These operational modes of the STOMP simulator are configured to solve problems involving the sequestration of CO2 in geologic saline reservoirs. STOMP-CO2 is the isothermal version and STOMP-CO2e is the nonisothermal version. These core operational modes solve the governing conservation equations for component flow and transport through geologic media; where, the STOMP-CO2 components are water, CO2 and salt and the STOMP-CO2e operational mode also includes an energy conservation equation. Geochemistry can be included in the problem solution via the ECKEChem (Equilibrium-Conservation-Kinetic-Equation Chemistry) module, and geomechanics via the EPRMech (Elastic-Plastic-Rock Mechanics) module. This addendum is designed to provide the new user with a full guide for the core capabilities of the STOMP-CO2 and -CO2e simulators, and to provide the experienced user with a quick reference on implementing features. Several benchmark problems are provided in this addendum, which serve as starting points for developing inputs for more complex problems and as demonstrations of the simulator’s capabilities.

White, Mark D.; Bacon, Diana H.; McGrail, B. Peter; Watson, David J.; White, Signe K.; Zhang, Z. F.

2012-04-03T23:59:59.000Z

449

Effects of CO2 on H2O band profiles and band strengths in mixed H2O:CO2 ices  

E-Print Network [OSTI]

H2O is the most abundant component of astrophysical ices. In most lines of sight it is not possible to fit both the H2O 3 um stretching, the 6 um bending and the 13 um libration band intensities with a single pure H2O spectrum. Recent Spitzer observations have revealed CO2 ice in high abundances and it has been suggested that CO2 mixed into H2O ice can affect relative strengths of the 3 um and 6 um bands. We used laboratory infrared transmission spectroscopy of H2O:CO2 ice mixtures to investigate the effects of CO2 on H2O ice spectral features at 15-135 K. We find that the H2O peak profiles and band strengths are significantly different in H2O:CO2 ice mixtures compared to pure H2O ice. In all H2O:CO2 mixtures, a strong free-OH stretching band appears around 2.73 um, which can be used to put an upper limit on the CO2 concentration in the H2O ice. The H2O bending mode profile also changes drastically with CO2 concentration; the broad pure H2O band gives way to two narrow bands as the CO2 concentration is increased. This makes it crucial to constrain the environment of H2O ice to enable correct assignments of other species contributing to the interstellar 6 um absorption band. The amount of CO2 present in the H2O ice of B5:IRS1 is estimated by simultaneously comparing the H2O stretching and bending regions and the CO2 bending mode to laboratory spectra of H2O, CO2, H2O:CO2 and HCOOH.

Karin I. Oberg; Helen J. Fraser; A. C. Adwin Boogert; Suzanne E. Bisschop; Guido W. Fuchs; Ewine F. van Dishoeck; Harold Linnartz

2006-10-25T23:59:59.000Z

450

Pre-Combustion CO2 Control | netl.doe.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar Home Design PassivePostdoctoralKanareykin,U DPre-Combustion CO2 Control

451

CO2e Capital Limited | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis a city in ChittendenPartners LLC JumpCO2e Capital Limited

452

Direct s-CO2 Reciever Development | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergy CooperationRequirements Matrix U.S. DepartmentBaseload OperationDirect s-CO2 Reciever

453

From CO2 to Methanol via Novel Nanocatalysts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibilityFieldMinds"OfficeTour theFrom CO2 to Methanol via

454

From CO2 to Methanol via Novel Nanocatalysts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibilityFieldMinds"OfficeTour theFrom CO2 to Methanol

455

From CO2 to Methanol via Novel Nanocatalysts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibilityFieldMinds"OfficeTour theFrom CO2 to MethanolFrom

456

Exsolution Enhanced Oil Recovery with Concurrent CO2 Sequestration. | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicy andExsolution Enhanced Oil Recovery with Concurrent CO2

457

From CO2 to Methanol via Novel Nanocatalysts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr Flickr Editor's note: SincePlantFreedomofFrom CO2 to Methanol via

458

From CO2 to Methanol via Novel Nanocatalysts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr Flickr Editor's note: SincePlantFreedomofFrom CO2 to Methanol

459

From CO2 to Methanol via Novel Nanocatalysts  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr Flickr Editor's note: SincePlantFreedomofFrom CO2 to MethanolFrom

460

Geologic CO2 sequestration inhibits microbial growth | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr Flickr Editor'sshort version)Unveils High-TechNaturalGeologic CO2

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461

co2 capture meeting | netl.doe.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched5 Industrial Carbon Capture and Storage CleanDiscovery of θ1cmarquardt2013 NETL CO2

462

Semi-analytical model of brine and CO2 leakage through an abandoned plugged well. Applications for determining an Area of Review and CO2 leakage rate  

E-Print Network [OSTI]

Semi-analytical model of brine and CO2 leakage through an abandoned plugged well. Applications for determining an Area of Review and CO2 leakage rate Arnaud Réveillère, Jérémy Rohmer, Frédéric Wertz / contact the leak, and of CO2,g as a first approach. Compared to the state of the art, it adds the possibility

Paris-Sud XI, Université de

463

IMPLEMENTING A NOVEL CYCLIC CO2 FLOOD IN PALEOZOIC REEFS  

SciTech Connect (OSTI)

Recycled CO2 will be used in this demonstration project to produce bypassed oil from the Silurian Charlton 6 pinnacle reef (Otsego County) in the Michigan Basin. Contract negotiations by our industry partner to gain access to this CO2 that would otherwise be vented to the atmosphere are near completion. A new method of subsurface characterization, log curve amplitude slicing, is being used to map facies distributions and reservoir properties in two reefs, the Belle River Mills and Chester 18 Fields. The Belle River Mills and Chester18 fields are being used as typefields because they have excellent log-curve and core data coverage. Amplitude slicing of the normalized gamma ray curves is showing trends that may indicate significant heterogeneity and compartmentalization in these reservoirs. Digital and hard copy data continues to be compiled for the Niagaran reefs in the Michigan Basin. Technology transfer took place through technical presentations regarding the log curve amplitude slicing technique and a booth at the Midwest PTTC meeting.

James R. Wood; W. Quinlan; A. Wylie

2003-07-01T23:59:59.000Z

464

CHEMICAL FIXATION OF CO2 IN COAL COMBUSTION PRODUCTS AND RECYCLING THROUGH BIOSYSTEMS  

SciTech Connect (OSTI)

This Annual Technical Progress Report presents the principle results in enhanced growth of algae using coal combustion products as a catalyst to increase bicarbonate levels in solution. A co-current reactor is present that increases the gas phase to bicarbonate transfer rate by a factor of five to nine. The bicarbonate concentration at a given pH is approximately double that obtained using a control column of similar construction. Algae growth experiments were performed under laboratory conditions to obtain baseline production rates and to perfect experimental methods. The final product of this initial phase in algae production is presented. Algal growth can be limited by several factors, including the level of bicarbonate available for photosynthesis, the pH of the growth solution, nutrient levels, and the size of the cell population, which determines the available space for additional growth. In order to supply additional CO2 to increase photosynthesis and algal biomass production, fly ash reactor has been demonstrated to increase the available CO2 in solution above the limits that are achievable with dissolved gas alone. The amount of dissolved CO2 can be used to control pH for optimum growth. Periodic harvesting of algae can be used to maintain algae in the exponential, rapid growth phase. An 800 liter scale up demonstrated that larger scale production is possible. The larger experiment demonstrated that indirect addition of CO2 is feasible and produces significantly less stress on the algal system. With better harvesting methods, nutrient management, and carbon dioxide management, an annual biomass harvest of about 9,000 metric tons per square kilometer (36 MT per acre) appears to be feasible. To sequester carbon, the algal biomass needs to be placed in a permanent location. If drying is undesirable, the biomass will eventually begin to aerobically decompose. It was demonstrated that algal biomass is a suitable feed to an anaerobic digester to produce methane. The remaining carbonaceous material is essentially bio-inactive and is permanently sequestered. The feasibility of using algae to convert carbon dioxide to a biomass has been demonstrated. This biomass provides a sustainable means to produce methane, ethanol, and/or bio diesel. The first application of concept demonstrated by the project could be to use algal biomass production to capture carbon dioxide associated with ethanol production.

C. Henry Copeland; Paul Pier; Samantha Whitehead; Paul Enlow; Richard Strickland; David Behel

2003-12-15T23:59:59.000Z

465

& MetalOrganic Frameworks Enhancing CO2 Separation Ability of a MetalOrganic Framework  

E-Print Network [OSTI]

that it is a promising material for sequestering CO2 from landfill gas. Introduction Metal­organic frameworks have been considered as promising materials for separating CO2 from landfill gas and industrial flue gas due

Paik Suh, Myunghyun

466

E-Print Network 3.0 - air co2 enrichment Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Free Air CO2-Enrichment Experiment Summary: Litterfall 15N Abundance Indicates Declining Soil N Availability in a Free Air CO2-Enrichment... in different treatment rings at the...

467

Methanol Synthesis from CO2 Hydrogenation over a Pd4/In2O3 Model...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Methanol Synthesis from CO2 Hydrogenation over a Pd4In2O3 Model Catalyst: A Combined DFT and Kinetic Study. Methanol Synthesis from CO2 Hydrogenation over a Pd4In2O3 Model...

468

CO2 Reduction on Supported Ru/Al2O3 Catalysts: Cluster Size Dependence...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CO2 Reduction on Supported RuAl2O3 Catalysts: Cluster Size Dependence of Product Selectivity. CO2 Reduction on Supported RuAl2O3 Catalysts: Cluster Size Dependence of Product...

469

Effects of Hydration and Oxygen Vacancy on CO2 Adsorption and...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hydration and Oxygen Vacancy on CO2 Adsorption and Activation on ?-Ga2O3(100). Effects of Hydration and Oxygen Vacancy on