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Note: This page contains sample records for the topic "wells drilled successful" from the National Library of EnergyBeta (NLEBeta).
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1

Well drilling apparatus and method  

DOE Patents (OSTI)

Well drilling rates may be increased by impelling projectiles to fracture rock formations and drilling with rock drill bits through the projectile fractured rock.

Alvis, Robert L. (Albuquerque, NM); Newsom, Melvin M. (Albuquerque, NM)

1977-01-01T23:59:59.000Z

2

Method for drilling directional wells  

Science Conference Proceedings (OSTI)

A method is described of locating a substantially horizontal bed of interest in a formation and maintaining a drill string therein during the drilling operation, said drill string including a measurement-while-drilling (MWD) electromagnetic propagation resistivity sensor, comprising the steps of: drilling a substantially vertical offset well in a formation having at least one selected substantially horizontal bed therein; measuring resistivity in the formation at the offset well to provide a first resistivity log as a function of depth; modeling the substantially horizontal bed to provide a modeled resistivity log indicative of the resistivity taken along the substantially horizontal bed, said modeling being based on said first resistivity log; drilling a directional well in said formation near said offset well, a portion of said directional well being disposed in said substantially horizontal bed; measuring resistivity in said directional well using the MWD electromagnetic propagation resistivity sensor to provide a second log of resistivity taken substantially horizontally; comparing said second log to said modeled log to determine the location of said directional well; and adjusting the directional drilling operation so as to maintain said drill string within said substantially horizontal bed during the drilling of said directional well in response to said comparing step.

Wu, Jianwu; Wisler, M.M.

1993-07-27T23:59:59.000Z

3

Field results document underbalanced drilling success  

Science Conference Proceedings (OSTI)

Many different techniques are used to maintain underbalanced conditions at the toolface. Whether the operator is trying to avoid drilling problems or prevent formation damage, the key to a safe, successful operation is a reliable method of sealing around the tubulars at the surface for continuous well control. Globally, underbalanced drilling (UBD) is emerging as an important technology to improve production and solve drilling problems with success in many applications with different reservoirs. Improvements in initial flow rates using UBD are being supported by longer term production. UBD techniques and processes are improving through experience and implementation. UBD is becoming a more economical means to optimize reservoir management than conventional overbalanced operations. UBD operations are proving to be safer than conventional overbalanced drilling.

Vozniak, J.; Cuthbertson, R.L.

1997-04-01T23:59:59.000Z

4

Well descriptions for geothermal drilling  

DOE Green Energy (OSTI)

Generic well models have been constructed for eight major geothermal resource areas. The models define representative times and costs associated with the individual operations that can be expected during drilling and completion of geothermal wells. They were made for and have been used to evaluate the impacts of potential new technologies. Their nature, their construction, and their validation are discussed.

Carson, C.C.; Livesay, B.J.

1981-01-01T23:59:59.000Z

5

Downhole Temperature Prediction for Drilling Geothermal Wells  

DOE Green Energy (OSTI)

Unusually high temperatures are encountered during drilling of a geothermal well. These temperatures affect every aspect of drilling, from drilling fluid properties to cement formulations. Clearly, good estimates of downhole temperatures during drilling would be helpful in preparing geothermal well completion designs, well drilling plans, drilling fluid requirements, and cement formulations. The thermal simulations in this report were conducted using GEOTEMP, a computer code developed under Sandia National Laboratories contract and available through Sandia. Input variables such as drilling fluid inlet temperatures and circulation rates, rates of penetration, and shut-in intervals were obtained from the Imperial Valley East Mesa Field and the Los Alamos Hot Dry Rock Project. The results of several thermal simulations are presented, with discussion of their impact on drilling fluids, cements, casing design, and drilling practices.

Mitchell, R. F.

1981-01-01T23:59:59.000Z

6

Salt Wells Geothermal Exploratory Drilling Program EA  

Open Energy Info (EERE)

Salt Wells Geothermal Exploratory Drilling Program EA Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) Abstract No abstract available. Author Bureau of Land Management Published U.S. Department of the Interior- Bureau of Land Management, Carson City Field Office, Nevada, 09/14/2009 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) Citation Bureau of Land Management. Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-0006-EA) [Internet]. 09/14/2009. Carson City, NV. U.S. Department of the Interior- Bureau of Land Management,

7

Geothermal Drilling Success at Blue Mountain, Nevada | Open Energy  

Open Energy Info (EERE)

Drilling Success at Blue Mountain, Nevada Drilling Success at Blue Mountain, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Geothermal Drilling Success at Blue Mountain, Nevada Abstract Exploration in a blind prospect has led to the confirmation of a geothermal resource at Blue Mt.Nevada. The latest results include drilling of three production wells into Piedmont faults. These wells produce from a 185 to 190°C dilute benign brine reservoir. Short flow tests have shown prolific flow rates and indications of reservoir continuity.Well entries have shown that system permeability is fault-dominated. This is confirmed by the results of seismic reflection imaging. Young faulting in the area includes intersecting range front faults that strike NW, NS, and NE. Exposure of

8

Directional Drilling and Equipment for Hot Granite Wells  

DOE Green Energy (OSTI)

Directional drilling technology was extended and modified to drill the first well of a subsurface geothermal energy extraction system at the Fenton Hill, New Mexico, hot dry rock (HDR) experimental site. Borehole geometries, extremely hard and abrasive granite rock, and high formation temperatures combined to provide a challenging environment for directional drilling tools and instrumentation. Completing the first of the two-wellbore HDR system resulted in the definition of operation limitations of -many conventional directional drilling tools, instrumentation, and techniques. The successful completion of the first wellbore, Energy Extraction Well No. 2 (EE-21), to a measured depth of 4.7 km (15,300 ft) in granite reservoir rock with a bottomhole temperature of 320 C (610 F) required the development of a new high-temperature downhole motor and modification of existing wireline-conveyed steering tool systems. Conventional rotary-driven directional assemblies were successfully modified to accommodate the very hard and abrasive rock encountered while drilling nearly 2.6 km (8,500 ft) of directional hole to a final inclination of 35{sup o} from the vertical at the controlled azimuthal orientation. Data were collected to optimize the drilling procedures far the programmed directional drilling of well EE-3 parallel to, and 370 metres (1,200 ft) above, Drilling equipment and techniques used in drilling wellbores for extraction of geothermal energy from hot granite were generally similar to those that are standard and common to hydrocarbon drilling practices. However, it was necessary to design some new equipment for this program: some equipment was modified especially for this program and some was operated beyond normal ratings. These tools and procedures met with various degrees of success. Two types of shock subs were developed and tested during this project. However, downhole time was limited, and formations were so varied that analysis of the capabilities of these items is not conclusive. Temperature limits of the tools were exceeded. EE-2. Commercial drilling and fishing jars were improved during the drilling program. Three-cone, tungsten-carbide insert bit performance with downhole motors was limited by rapid gauge wear. Rotary drilling was optimized for wells EE-2 and EE-3 using softer (IADS 635 code) bits and provided a balance between gauge,. cutting structure, and bearing life. Problems of extreme drill string drag, drill string twist-off, and corrosion control are discussed.

Williams, R. E.; Neudecker, J. W.; Rowley, J.C.; Brittenham, T. L.

1981-01-01T23:59:59.000Z

9

Drilling and operating geothermal wells in California  

SciTech Connect

The following procedural points for geothermal well drilling and operation are presented: geothermal operators, definitions, geothermal unit, agent, notice of intention, fees, report on proposed operations, bonds, well name and number, well and property sale on transfer, well records, and other agencies. (MHR)

1979-01-01T23:59:59.000Z

10

Geothermal wells: a forecast of drilling activity  

DOE Green Energy (OSTI)

Numbers and problems for geothermal wells expected to be drilled in the United States between 1981 and 2000 AD are forecasted. The 3800 wells forecasted for major electric power projects (totaling 6 GWe of capacity) are categorized by type (production, etc.), and by location (The Geysers, etc.). 6000 wells are forecasted for direct heat projects (totaling 0.02 Quads per year). Equations are developed for forecasting the number of wells, and data is presented. Drilling and completion problems in The Geysers, The Imperial Valley, Roosevelt Hot Springs, the Valles Caldera, northern Nevada, Klamath Falls, Reno, Alaska, and Pagosa Springs are discussed. Likely areas for near term direct heat projects are identified.

Brown, G.L.; Mansure, A.J.; Miewald, J.N.

1981-07-01T23:59:59.000Z

11

Water Wells and Drilled or Mined Shafts (Texas) | Department...  

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

Water Wells and Drilled or Mined Shafts (Texas) Water Wells and Drilled or Mined Shafts (Texas) Eligibility Utility Fed. Government Commercial Investor-Owned Utility Industrial...

12

Solicitation - Geothermal Drilling Development and Well Maintenance Projects  

DOE Green Energy (OSTI)

Energy (DOE)-industry research and development (R and D) organization, sponsors near-term technology development projects for reducing geothermal drilling and well maintenance costs. Sandia National Laboratories (Albuquerque, NM) administers DOE funds for GDO cost-shared projects and provides technical support. The GDO serves a very important function in fostering geothermal development. It encourages commercialization of emerging, cost-reducing drilling technologies, while fostering a spirit of cooperation among various segments of the geothermal industry. For Sandia, the GDO also serves as a means of identifying the geothermal industry's drilling fuel/or well maintenance problems, and provides an important forum for technology transfer. Successfully completed GDO projects include: the development of a high-temperature borehole televiewer, high-temperature rotating head rubbers, a retrievable whipstock, and a high-temperature/high-pressure valve-changing tool. Ongoing GDO projects include technology for stemming lost circulation; foam cement integrity log interpretation, insulated drill pipe, percussive mud hammers for geothermal drilling, a high-temperature/ high-pressure valve changing tool assembly (adding a milling capability), deformed casing remediation, high- temperature steering tools, diagnostic instrumentation for casing in geothermal wells, and elastomeric casing protectors.

Sattler, A.R.

1999-07-07T23:59:59.000Z

13

Directional drilling equipment and techniques for deep hot granite wells  

DOE Green Energy (OSTI)

Conventional directional drilling technology has been extended and modified to drill the first well of a subsurface geothermal energy extraction system at the Fenton Hill, New Mexico, Hot dry Rock (HDR) experimental site. Completing the first of a two-wellbore HDR system has resulted in the definition of operational limitations of many conventional directional drilling tools, instrumentation and techniques. The successful completion of the first wellbore, Energy Extraction Well No. 2 (EE-2), to a measured depth of 15,300 ft (4.7 km) in granite reservoir rock with a bottomhole temperature of 530/sup 0/F (275/sup 0/C) required the development of a new high temperature downhole motor and modification of existing wireline-conveyed steering tool systems. Conventional rotary-driven directional assemblies were successfully modified to accommodate the very hard and abrasive rock encountered while drilling nearly 8500 ft (2.6 km) of directional hole to a final inclination of 35/sup 0/ from the vertical at a controlled azimuthal orientation.

Brittenham, T.L.; Sursen, G.; Neudecker, J.W.; Rowley, J.C.; Williams, R.E.

1980-01-01T23:59:59.000Z

14

Laser Oil & Gas Well Drilling [Laser Applications Laboratory...  

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

benefit in reducing the high costs of operating a drill rig. Today, a typical land-based oil or gas well costs around 400,000 to drill, while costs for an offshore well average...

15

Oil and Gas Well Drilling | Open Energy Information  

Open Energy Info (EERE)

Oil and Gas Well Drilling Jump to: navigation, search OpenEI Reference LibraryAdd to library General: Oil and Gas Well Drilling Author Jeff Tester Published NA, 2011 DOI Not...

16

Surface control bent sub for directional drilling of petroleum wells  

DOE Patents (OSTI)

Directional drilling apparatus for incorporation in a drill string, wherein a lower apparatus section is angularly deviated from vertical by cam action and wherein rotational displacement of the angularly deviated apparatus section is overcome by additional cam action, the apparatus being operated by successive increases and decreases of internal drill string pressure.

Russell, Larry R. (6025 Edgemoor, Suite C, Houston, TX 77081)

1986-01-01T23:59:59.000Z

17

An Intelligent System for Petroleum Well Drilling Cutting Analysis  

Science Conference Proceedings (OSTI)

Cutting analysis is a important and crucial task task to detect and prevent problems during the petroleum well drilling process. Several studies have been developed for drilling inspection, but none of them takes care about analysing the generated cutting ... Keywords: Cutting analysis, petroleum well drilling monitoring, optimum-path forest

Aparecido N. Marana; Giovani Chiachia; Ivan R. Guilherme; João P. Papa

2009-09-01T23:59:59.000Z

18

Horizontal flow drilling requires focus on well control  

Science Conference Proceedings (OSTI)

Horizontal wells drilled underbalanced or while flowing must have surface equipment and a blow-out preventer stack specially designed for circulating operations. Functional well control methods for drilling horizontal wells have been developed in specific regions worldwide. Special safety equipment and procedures, however, are still required in most horizontal development applications. The challenge for horizontal drilling development and underbalanced drilling is to overcome the obstacles of government regulation, reduce pollution dangers, and improve personnel and equipment safety. Well control techniques tailored to the demands of each field can help overcome these challenges. Several well control elements must be addressed carefully on each horizontal well: drilling fluid requirements, well control procedures and equipment, and surface equipment and special considerations for handling hydrocarbons produced while drilling. The paper discusses each of these elements for underbalanced horizontal drilling.

Tangedahl, M.J. (RBOP Oil Tools International Inc., Houston, TX (United States))

1994-06-13T23:59:59.000Z

19

Interpretation of drill cuttings from geothermal wells  

DOE Green Energy (OSTI)

Problems in interpreting drill cuttings, as opposed to drill cores, and methods to solve these problems are outlined. The following are covered: identification of lithology; recognition of faults and fractures; interpretation of hydrothermal alteration; geochemistry; sample collection; sample preparple examination; and sample storage. (MHR)

Hulen, J.B.; Sibbett, B.S.

1981-06-01T23:59:59.000Z

20

Site selection, drilling, and completion of two horizontal wells in the Devonian Shales of West Virginia  

Science Conference Proceedings (OSTI)

This report presents a summary of the geologic site selection studies, planning, drilling, completing, stimulating, and testing of two horizontal wells drilled in the Devonian Shales of the Appalachian Basin in West Virginia. Each horizontal well was designed and managed by BDM as the prime contractor to the Department of Energy. The first well was drilled with industry partner Cabot Oil and Gas Corporation in Putnam County, West Virginia. The second well was drilled with Consolidated Natural Gas Company in Calhoun County, West Virginia. This report summarizes four reports prepared by BDM which detail the site selection rationale and the drilling and completion operations of each well. Each horizontal well is currently producing commercial quantities of hydrocarbons. The successful application of horizontal well technology represent continued development of the technology for application to tight and unconventional natural gas resources of the United States. Continued technology development is expected to ultimately result in commercial horizontal well drilling activity by industry in the Appalachian Basin.

Overbey, W.K. Jr.; Carden, R.S.; Locke, C.D.; Salamy, S.P.; Reeves, T.K.; Johnson, H.R.

1992-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Geothermal: Sponsored by OSTI -- Chapter 6. Drilling and Well...  

Office of Scientific and Technical Information (OSTI)

Chapter 6. Drilling and Well Construction Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About Publications Advanced...

22

Drilling Sideways -- A Review of Horizontal Well Technology and ...  

U.S. Energy Information Administration (EIA)

DOE/EIA-TR-0565 Distribution Category UC-950 Drilling Sideways -- A Review of Horizontal Well Technology and Its Domestic Application April 1993 Energy Information ...

23

Drilling Operations Plan for the Magma Energy Exploratory Well  

DOE Green Energy (OSTI)

This paper is a summary of the proposed drilling plan for the first phase (to 2500 feet depth) of the Magma Energy Exploratory Well. The drilling program comprises four phases, spaced approximately one year apart, which culminate in a large-diameter well to a total depth near 20,000 feet. Included here are descriptions of the well design, predictions of potential drilling problems, a list of restrictions imposed by regulatory agencies, an outline of Sandia's management structure, and an explanation of how the magma energy technology will benefit from this drilling.

Finger, John T.; Livesay, Bill J.; Ash, Don

1989-03-21T23:59:59.000Z

24

Resonant acoustic transducer system for a well drilling string  

DOE Patents (OSTI)

For use in transmitting acoustic waves propated along a well drilling string, a piezoelectric transducer is provided operating in the relatively low loss acoustic propagation range of the well drilling string. The efficiently coupled transmitting transducer incorporates a mass-spring-piezoelectric transmitter combination permitting a resonant operation in the desired low frequency range.

Nardi, Anthony P. (Burlington, MA)

1981-01-01T23:59:59.000Z

25

Resonant acoustic transducer system for a well drilling string  

DOE Patents (OSTI)

For use in transmitting acoustic waves propagated along a well drilling string, a piezoelectric transducer is provided operating in the relatively low loss acoustic propagation range of the well drilling string. The efficiently coupled transmitting transducer incorporates a mass-spring-piezoelectric transmitter combination permitting resonant operation in the desired low frequency range.

Kent, William H. (Westford, MA); Mitchell, Peter G. (Concord, MA)

1981-01-01T23:59:59.000Z

26

Drilling, Completing, and Maintaining Geothermal Wells in Baca, New Mexico  

DOE Green Energy (OSTI)

A 55-MWe power plant is planned for development in the Baca location in the Jemez Mountains of New Mexico. Union Geothermal has contracted to provide the steam for the power plant. This paper uses Baca Well No. 13 as a case history to describe the drilling methods, casing program, cementing program, and completion methods used by Union. The discussion includes aerated-water drilling and the methods of solving corrosion problems in aerated water. lost circulation control in mud drilling and its effect on the subsequent casing cementing program are discussed. The paper also includes a case history of scale removal methods used in Baca Well No. 11, including drilling the scale out with a turbo-drill and attempts at chemical inhibition.

Pye, S.

1981-01-01T23:59:59.000Z

27

EM Telemetry Tool for Deep Well Drilling Applications  

Science Conference Proceedings (OSTI)

This final report discusses the successful development and testing of a deep operational electromagnetic (EM) telemetry system, produced under a cooperative agreement with the United States Department of Energy's National Energy Technology Laboratory. This new electromagnetic telemetry system provides a wireless communication link between sensors deployed deep within oil and gas wells and data acquisition equipment located on the earth's surface. EM based wireless telemetry is a highly appropriate technology for oil and gas exploration in that it avoids the need for thousands of feet of wired connections. In order to achieve the project performance objectives, significant improvements over existing EM telemetry systems were made. These improvements included the development of new technologies that have improved the reliability of the communications link while extending operational depth. A key element of the new design is the incorporation of a data-fusion methodology which enhances the communication receiver's ability to extract very weak signals from large amounts of ambient environmental noise. This innovative data-fusion receiver based system adapts advanced technologies, not normally associated with low-frequency communications, and makes them work within the harsh drilling environments associated with the energy exploration market. Every element of a traditional EM telemetry system design, from power efficiency to reliability, has been addressed. The data fusion based EM telemetry system developed during this project is anticipated to provide an EM tool capability that will impact both onshore and offshore oil and gas exploration operations, for conventional and underbalanced drilling applications.

Jeffrey M. Gabelmann

2005-11-15T23:59:59.000Z

28

Horizontal underbalanced drilling of gas wells with coiled tubing  

Science Conference Proceedings (OSTI)

Coiled tubing drilling technology is gaining popularity and momentum as a significant and reliable method of drilling horizontal underbalanced wells. It is quickly moving into new frontiers. To this point, most efforts in the Western Canadian Basin have been focused towards sweet oil reservoirs in the 900--1300 m true vertical depth (TVD) range, however there is an ever-increasing interest in deeper and gas-producing formations. Significant design challenges on both conventional and coiled tubing drilling operations are imposed when attempting to drill these formations underbalanced. Coiled tubing is an ideal technology for underbalanced drilling due to its absence of drillstring connections resulting in continuous underbalanced capabilities. This also makes it suitable for sour well drilling and live well intervention without the risk of surface releases of reservoir gas. Through the use of pressure deployment procedures it is possible to complete the drilling operation without need to kill the well, thereby maintaining underbalanced conditions right through to the production phase. The use of coiled tubing also provides a means for continuous wireline communication with downhole steering, logging and pressure recording devices.

Cox, R.J.; Li, J.; Lupick, G.S.

1999-03-01T23:59:59.000Z

29

Salt Wells Geothermal Exploratory Drilling Program EA(DOI-BLM...  

Open Energy Info (EERE)

09142009 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for Salt Wells Geothermal Exploratory Drilling Program EA (DOI-BLM-NV-C010-2009-...

30

Laser Spallation of Rocks for Oil Well Drilling  

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

LASER SPALLATION OF ROCKS FOR OIL WELL DRILLING Zhiyue Xu 1 , Claude B. Reed 1 , Richard Parker 2 , Ramona Graves 3 1 Argonne National Laboratory, Argonne, IL 60439, USA 2 Parker...

31

Rigs Drilling Gas Wells Are At  

U.S. Energy Information Administration (EIA)

The increasing number of resulting gas well completions have been expanding production in major producing States, such as Texas. For the year 2000, ...

32

Drilling and Completion of the Urach III HDR Test Well  

DOE Green Energy (OSTI)

The hot dry rock (HDR) test well, urach III, was drilled and completed in 1979. The borehole is located in Southwest Germany in the geothermal anomaly of Urach. The purpose of project Urach was to study drilling and completion problems of HDR wells and to provide a test site for a HDR research program. The Urach III borehole was drilled to a total depth of 3,334 meters (10,939 feet), penetrating 1,700 meters (5,578 feet) into the granitic basement. Extensive coring was required to provide samples for geophysical and geochemical studies. Positive displacement downhole motors were used for coring and normal drilling operations. It was found that these motors in combination with the proper bits gave better results than conventional rotary drilling. Loss of circulation was encountered not only in sedimentary rocks but also in the granite. After drilling and completion of the borehole, a number of hydraulic fracturing experiments were performed in the open hole as well as in the cased section of Urach III. A circulation loop was established by using the single-borehole concept. It is not yet clear whether new fractures have actually been generated or preexisting joints and fissures have been reactivated. Evaluation of the results of this first step is almost completed and the planning of Phase II of the Urach project is under way.

Meier, U.; Ernst, P. L.

1981-01-01T23:59:59.000Z

33

Demonstration of a utility industry horizontal drilling system: Horizontal well AMH-5 installation report  

SciTech Connect

The Department of Energy`s Office of Technology Development initiated an integrated demonstration of innovative technologies and systems for cleanup of VOCs in soils and groundwater at the Savannah River Site (SRS) in 1989. The overall goal of the program is demonstration of multiple technologies and systems in the fields of drilling, characterization, monitoring, and remediation at a single test bed. Innovative technologies are compared to one another and to baseline technologies in terms of technical performance and cost effectiveness. Transfer of successfully demonstrated technologies and systems to DOE environmental restoration organizations, to other government agencies, and to industry is a critical part of the program. Directional drilling has been shown to be a successful technique for enhancing access to the subsurface, thus improving remediation systems, especially remediation systems which perform in situ. Demonstration of an innovative directional drilling system at the Integrated Demonstration Site at the SRS, was initiated in June of 1992. The directional drilling system was designed to install an in situ remediation system. The drilling system is an experimental compaction/dry drilling technique developed by Charles Machine Works (Ditch Witch{reg_sign}) of Perry, Oklahoma. A horizontal well was installed in the M Area of the SRS below and parallel to an abandoned tile process sewer line. The installation of the horizontal well was a two-part process. Part one consisted of drilling the borehole, and part two was the horizontal well completion.

Not Available

1992-12-31T23:59:59.000Z

34

Improved Efficiency of Oil Well Drilling through Case Based Reasoning  

E-Print Network (OSTI)

A system that applies a method of knowledge-intensive case-based reasoning, for repair and prevention of unwanted events in the domain of offshore oil well drilling, has been developed in cooperation with an oil company. From several reoccurring problems during oil well drilling the problem of "lost circulation", i.e. loss of circulating drilling fluid into the geological formation, was picked out as a pilot problem. An extensive general knowledge model was developed for the domain of oil well drilling. About fifty different cases were created on the basis of information from one North Sea operator. When the completed CBR-system was tested against a new case, five cases with descending similarity were selected by the tool. In an informal evaluation, the two best fitting cases proved to give the operator valuable advise on how to go about solving the new case. Introduction Drilling of oil wells is an expensive operation, costing around 150 000 US $ pr. day, and any loss of time caused...

Paal Skalle; Jostein Sveen; Agnar Aamodt

2000-01-01T23:59:59.000Z

35

Laser Oil and Gas Well Drilling Demonstration Videos  

DOE Data Explorer (OSTI)

ANL's Laser Applications Laboratory and collaborators are examining the feasibility of adapting high-power laser technology to drilling for gas and oil. The initial phase is designed to establish a scientific basis for developing a commercial laser drilling system and determine the level of gas industry interest in pursuing future research. Using lasers to bore a hole offers an entirely new approach to mechanical drilling. The novel drilling system would transfer light energy from lasers on the surface, down a borehole by a fiber optic bundle, to a series of lenses that would direct the laser light to the rock face. Researchers believe that state-of-the-art lasers have the potential to penetrate rock many times faster than conventional boring technologies - a huge benefit in reducing the high costs of operating a drill rig. Because the laser head does not contact the rock, there is no need to stop drilling to replace a mechanical bit. Moreover, researchers believe that lasers have the ability to melt the rock in a way that creates a ceramic sheath in the wellbore, eliminating the expense of buying and setting steel well casing. A laser system could also contain a variety of downhole sensors, including visual imaging systems that could communicate with the surface through the fiber optic cabling. Earlier studies have been promising, but there is still much to learn. One of the primary objectives of the new study will be to obtain much more precise measurements of the energy requirements needed to transmit light from surface lasers down a borehole with enough power to bore through rocks as much as 20,000 feet or more below the surface. Another objective will be to determine if sending the laser light in sharp pulses, rather than as a continuous stream, could further increase the rate of rock penetration. A third aspect will be to determine if lasers can be used in the presence of drilling fluids. In most wells, thick fluids called "drilling muds" are injected into the borehole to wash out rock cuttings and keep water and other fluids from the underground formations from seeping into the well. The technical challenge will be to determine whether too much laser energy is expended to clear away the fluid where the drilling is occurring. (Copied with editing from http://www.ne.anl.gov/facilities/lal/laser_drilling.html). The demonstration videos, provided here in QuickTime format, are accompanied by patent documents and PDF reports that, together, provide an overall picture of this fascinating project.

36

Site selection, drilling, and completion of two horizontal wells in the Devonian Shales of West Virginia. Final report  

Science Conference Proceedings (OSTI)

This report presents a summary of the geologic site selection studies, planning, drilling, completing, stimulating, and testing of two horizontal wells drilled in the Devonian Shales of the Appalachian Basin in West Virginia. Each horizontal well was designed and managed by BDM as the prime contractor to the Department of Energy. The first well was drilled with industry partner Cabot Oil and Gas Corporation in Putnam County, West Virginia. The second well was drilled with Consolidated Natural Gas Company in Calhoun County, West Virginia. This report summarizes four reports prepared by BDM which detail the site selection rationale and the drilling and completion operations of each well. Each horizontal well is currently producing commercial quantities of hydrocarbons. The successful application of horizontal well technology represent continued development of the technology for application to tight and unconventional natural gas resources of the United States. Continued technology development is expected to ultimately result in commercial horizontal well drilling activity by industry in the Appalachian Basin.

Overbey, W.K. Jr.; Carden, R.S.; Locke, C.D.; Salamy, S.P.; Reeves, T.K.; Johnson, H.R.

1992-03-01T23:59:59.000Z

37

Directional drilling and equipment for hot granite wells  

DOE Green Energy (OSTI)

The following drilling equipment and experience gained in drilling to date are discussed: positive displacement motors, turbodrills, motor performance experience, rotary-build and rotary-hold results, steering devices and surveying tools, shock absorbers, drilling and fishing jars, drilling bits, control of drill string drag, and control of drill string degradation. (MHR)

Williams, R.E.; Neudecker, J.W.; Rowley, J.C.; Brittenham, T.L.

1981-01-01T23:59:59.000Z

38

Casing pull tests for directionally drilled environmental wells  

SciTech Connect

A series of tests to evaluate several types of environmental well casings have been conducted by Sandia National Laboratories (SNL) and it`s industrial partner, The Charles Machine Works, Inc. (CMW). A test bed was constructed at the CMW test range to model a typical shallow, horizontal, directionally drilled wellbore. Four different types of casings were pulled through this test bed. The loads required to pull the casings through the test bed and the condition of the casing material were documented during the pulling operations. An additional test was conducted to make a comparison of test bed vs actual wellbore casing pull loads. A directionally drilled well was emplaced by CMW to closely match the test bed. An instrumented casing was installed in the well and the pull loads recorded. The completed tests are reviewed and the results reported.

Staller, G.E.; Wemple, R.P. [Sandia National Labs., Albuquerque, NM (United States); Layne, R.R. [Charles Machine Works, Inc., Perry, OK (United States)

1994-11-01T23:59:59.000Z

39

What Is Well Yield? Private wells are frequently drilled in rural areas to  

E-Print Network (OSTI)

1 What Is Well Yield? Private wells are frequently drilled in rural areas to supply water to individual homes or farms. The maximum rate in gallons per minute (GPM) that a well can be pumped without lowering the water level in the borehole below the pump intake is called the well yield. Low-yielding wells

Keinan, Alon

40

Petroleum well drilling monitoring through cutting image analysis and artificial intelligence techniques  

Science Conference Proceedings (OSTI)

Petroleum well drilling monitoring has become an important tool for detecting and preventing problems during the well drilling process. In this paper, we propose to assist the drilling process by analyzing the cutting images at the vibrating shake shaker, ... Keywords: Applied artificial intelligence, Artificial Neural Networks, Optimum-path forest, Petroleum well drilling, Support vector machines

Ivan R. Guilherme; Aparecido N. Marana; João P. Papa; Giovani Chiachia; Luis C. S. Afonso; Kazuo Miura; Marcus V. D. Ferreira; Francisco Torres

2011-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

U.S. Average Depth of Dry Holes Developmental Wells Drilled ...  

Gasoline and Diesel Fuel Update (EIA)

Developmental Wells Drilled (Feet per Well) U.S. Average Depth of Dry Holes Developmental Wells Drilled (Feet per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

42

U.S. Average Depth of Natural Gas Exploratory Wells Drilled ...  

Annual Energy Outlook 2012 (EIA)

Wells Drilled (Feet per Well) U.S. Average Depth of Natural Gas Exploratory Wells Drilled (Feet per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

43

U.S. Average Depth of Natural Gas Developmental Wells Drilled...  

Annual Energy Outlook 2012 (EIA)

Developmental Wells Drilled (Feet per Well) U.S. Average Depth of Natural Gas Developmental Wells Drilled (Feet per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

44

U.S. Average Depth of Dry Holes Exploratory Wells Drilled (Feet...  

Annual Energy Outlook 2012 (EIA)

Exploratory Wells Drilled (Feet per Well) U.S. Average Depth of Dry Holes Exploratory Wells Drilled (Feet per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

45

U.S. Real Cost per Crude Oil, Natural Gas, and Dry Well Drilled...  

Gasoline and Diesel Fuel Update (EIA)

Crude Oil, Natural Gas, and Dry Well Drilled (Thousand Dollars per Well) U.S. Real Cost per Crude Oil, Natural Gas, and Dry Well Drilled (Thousand Dollars per Well) Decade Year-0...

46

U.S. Nominal Cost per Natural Gas Well Drilled (Thousand Dollars...  

Annual Energy Outlook 2012 (EIA)

Natural Gas Well Drilled (Thousand Dollars per Well) U.S. Nominal Cost per Natural Gas Well Drilled (Thousand Dollars per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

47

U.S. Nominal Cost per Crude Oil Well Drilled (Thousand Dollars...  

Annual Energy Outlook 2012 (EIA)

Oil Well Drilled (Thousand Dollars per Well) U.S. Nominal Cost per Crude Oil Well Drilled (Thousand Dollars per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

48

U.S. Nominal Cost per Crude Oil, Natural Gas, and Dry Well Drilled...  

Annual Energy Outlook 2012 (EIA)

Oil, Natural Gas, and Dry Well Drilled (Thousand Dollars per Well) U.S. Nominal Cost per Crude Oil, Natural Gas, and Dry Well Drilled (Thousand Dollars per Well) Decade Year-0...

49

U.S. Nominal Cost per Dry Well Drilled (Thousand Dollars per...  

Annual Energy Outlook 2012 (EIA)

Dry Well Drilled (Thousand Dollars per Well) U.S. Nominal Cost per Dry Well Drilled (Thousand Dollars per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

50

U.S. Average Depth of Crude Oil Developmental Wells Drilled ...  

Gasoline and Diesel Fuel Update (EIA)

Developmental Wells Drilled (Feet per Well) U.S. Average Depth of Crude Oil Developmental Wells Drilled (Feet per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

51

Sampling and Interpretation of Drill Cuttings from Geothermal Wells  

DOE Green Energy (OSTI)

Drill cuttings from geothermal and mineral exploration boreholes, by contrast with those from most petroleum wells, commonly are derived highly fractured and faulted, hydrothermally altered igneous and metamorphic rock sequences, and are likely to be severely contaminated. Characterization of a subsurface resource from cuttings thus requires not only especially careful sample collection, preparation, storage and examination, but also a thorough knowledge of drilling technology, local geology and the full range of potential borehole contaminants. Accurate identification of lithology from cuttings is critical for recognition and correlation of rock types likely to selectively host the desired commodity. However, many of the rocks encountered in geothermal and mineral exploration boreholes (such as gneisses and granitic rocks) can resemble one another closely as cuttings even though dissimilar in outcrop or core. In such cases, the actual rock type(s) in a cuttings sample generally can be determined by comparison with simulated cuttings of representative surface rocks, and with various geophysical and other well logs. Many other clues in cuttings, such as diagnostic metamorphic mineralogy, or sedimentary rounding and sorting, may help identify subsurface lithologies. Faults and fractures commonly are the dominant physical controls on geothermal and mineral resources. Faults occasionally can be recognized directly in cuttings by the presence of slickensiding, gouge, or other crushed material. More commonly, however, the ''gouge'' observed in cuttings actually is pseudo-gouge created beneath a bit during drilling. Since most faults and all fractures produce no direct evidence apparent in cuttings, they are best recognized indirectly, either by commonly associated hydrothermal alteration, or by responses on appropriate geophysical well logs. Hydrothermal alteration, useful for locating and defining a geothermal or mineral resource, is far more difficult to recognize and interpret in cuttings than in core or outcrop. Alteration textures and paragenetic relationships can be obscured or obliterated as cuttings are produced. Less resistant alteration (and rock-forming) minerals can be disaggregated during drilling and lost from cuttings during sampling or washing. Relict and contemporary alteration can be indistinguishable, and a wide variety of borehole contaminants can closely resemble natural alteration products encountered during drilling. These contaminants also can produce confusing geochemical signatures.

Hulen, Jeffrey B.; Sibbett, Bruce S.

1981-01-01T23:59:59.000Z

52

Footage Drilled for Crude Oil and Natural Gas Wells  

Gasoline and Diesel Fuel Update (EIA)

Footage Drilled for Crude Oil and Natural Gas Wells Footage Drilled for Crude Oil and Natural Gas Wells (Thousand Feet) Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2003 2004 2005 2006 2007 2008 View History Exploratory and Development Wells 176,867 203,997 240,969 285,398 308,210 331,740 1949-2008 Crude Oil 38,495 42,032 51,511 63,649 66,527 88,382 1949-2008 Natural Gas 115,833 138,503 164,353 193,595 212,753 212,079 1949-2008 Dry Holes 22,539 23,462 25,104 28,154 28,931 31,280 1949-2008 Exploratory Wells 17,785 22,382 25,955 29,630 36,534 35,585 1949-2008 Crude Oil 2,453 3,141 4,262 4,998 6,271 7,389 1949-2008 Natural Gas 6,569 9,998 12,347 14,945 19,982 17,066 1949-2008 Dry Holes

53

Costs of Crude Oil and Natural Gas Wells Drilled  

Gasoline and Diesel Fuel Update (EIA)

Costs of Crude Oil and Natural Gas Wells Drilled Costs of Crude Oil and Natural Gas Wells Drilled Period: Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes 2002 2003 2004 2005 2006 2007 View History Thousand Dollars per Well All (Real*) 1,011.9 1,127.4 1,528.5 1,522.3 1,801.3 3,481.8 1960-2007 All (Nominal) 1,054.2 1,199.5 1,673.1 1,720.7 2,101.7 4,171.7 1960-2007 Crude Oil (Nominal) 882.8 1,037.3 1,441.8 1,920.4 2,238.6 4,000.4 1960-2007 Natural Gas (Nominal) 991.9 1,106.0 1,716.4 1,497.6 1,936.2 3,906.9 1960-2007 Dry Holes (Nominal) 1,673.4 2,065.1 1,977.3 2,392.9 2,664.6 6,131.2 1960-2007 Dollars per Foot All (Real*) 187.46 203.25 267.28 271.16 324.00 574.46 1960-2007 All (Nominal) 195.31 216.27 292.57 306.50 378.03 688.30 1960-2007

54

Automatic detection and diagnosis of problems in drilling geothermal wells  

DOE Green Energy (OSTI)

Sandia National Laboratories and Tracor Applied Sciences have developed a proof-of-concept Expert System for the automatic detection and diagnosis of several important problems in geothermal drilling. The system is designed to detect loss of circulation, influx, loss of pump efficiency, and sensor problems. Data from flow sensors (including the rolling float meter), the pump stroke counter and other sensors are processed and examined for deviations from expected patterns. The deviations from expected patterns. The deviations are transformed into evidence for a Bayesian Network (a probabilistic reasoning tool), which estimates the probability of each fault. The results are displayed by a Graphical User Interface, which also allows the user to see data related to a specific fault. The prototype was tested on real data, and successfully detected and diagnosed faults.

Harmse, J.E.; Wallace, R.D.; Mansure, A.J.; Glowka, D.A.

1997-11-01T23:59:59.000Z

55

USE OF SLIMHOLE DRILLING TO REDUCE WELL COSTS 30-50%: ARNIM PROSPECT  

SciTech Connect

This report highlights the drilling of two shallow oil wells in Fayette County, Texas. The operator of these two wells was Stanton Mineral Development, Inc. The aim of this project was to successfully complete the two (2) wells, emphasizing tight oversight of the technological aspects, neglect of which are the primary causes of failure in this mature producing region as well as unnecessarily expensive wells. Discussions contained here within are not limited to just the execution of the project itself, but a historical and technical analysis which forms a basis for the decisions made both during drilling and completion. Additionally, there is substantial dialogue covering the financial benefits associated with the findings of this project.

WM. Stanton McDonald; Christopher M. Long

2002-06-13T23:59:59.000Z

56

U.S. Nominal Cost per Foot of Natural Gas Wells Drilled (Dollars...  

Annual Energy Outlook 2012 (EIA)

Natural Gas Wells Drilled (Dollars per Foot) U.S. Nominal Cost per Foot of Natural Gas Wells Drilled (Dollars per Foot) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

57

U.S. Nominal Cost per Foot of Crude Oil Wells Drilled (Dollars...  

Gasoline and Diesel Fuel Update (EIA)

Oil Wells Drilled (Dollars per Foot) U.S. Nominal Cost per Foot of Crude Oil Wells Drilled (Dollars per Foot) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

58

PREDICTION OF CUTTINGS BED HEIGHT WITH COMPUTATIONAL FLUID DYNAMICS IN DRILLING HORIZONTAL AND HIGHLY DEVIATED WELLS  

E-Print Network (OSTI)

AND HIGHLY DEVIATED WELLS Doguhan Yilmaz, Mayang Tyagi Craft & Hawkins Department of Petroleum Engineering Louisiana State University Abstract In oil well drilling, the efficient transport of drilled cuttings from the well bottom to the surface is an important process affecting the overall drilling performance

Ullmer, Brygg

59

Geopressured-geothermal well report. Volume I. Drilling and completion  

DOE Green Energy (OSTI)

Gladys McCall site activities are covered through the completion of the test well and salt water disposal well. The test well was drilled to a total depth of 16,510 feet, then plugged back to 15,831 feet. Three 4'' diameter diamond cores were taken for analysis. An existing well on site, the Getty-Butts Gladys McCall No. 1, was reentered and completed to a depth of 3514 feet as a salt water disposal well. The geologic interpretation of the Gladys McCall site indicated target sands for testing at 15,080 feet through 15, 831 feet. Reservoir fluid temperature at this depth is estimated to be approximately 313/sup 0/F and pressure is estimated to be +-12,800 psi. The preliminary reservoir volume estimate is 3.6 billion barrels of brine. The design wells program includes environmental monitoring of the Gladys McCall site by Louisiana State University. Field stations are set up to monitor surface and ground water quality, subsidence, land loss and shoreline erosion, and seismicity. As of December 31, 1981 the study shows no significant impact on the environment by site operations.

Not Available

1982-01-01T23:59:59.000Z

60

Corrosion Resistant Metallic Materials for Ultra-deep Well Drilling ...  

Science Conference Proceedings (OSTI)

... corrosion fatigue, etc., can be a primary cause of catastrophic degradation of tubular components during ultra-deep drilling of oil and natural gas shale.

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


61

Case history: Underbalance drilling the midway and Navarro formations successfully in Hallettsville, TX  

Science Conference Proceedings (OSTI)

Underbalanced drilling proves to be a sound and economical procedure with an average of $500 M being saved per well. An average reduction of 19 days to total depth has also been experienced with this method of drilling. The major advantages of drilling underbalanced are lower cost, reduced drilling days, and reduced trouble time (i.e., differential sticking and hole drag due to thick mud cake across shallow depleted Wilcox sands).

Louison, R.F.; Andrews, J.P.; Reese, R.T.

1984-09-01T23:59:59.000Z

62

The Temperature Prediction in Deepwater Drilling of Vertical Well  

E-Print Network (OSTI)

The extreme operating conditions in deepwater drilling lead to serious relative problems. The knowledge of subsea temperatures is of prime interest to petroleum engineers and geo-technologists alike. Petroleum engineers are interested in subsea temperatures to better understand geo-mechanisms; such as diagenesis of sediments, formation of hydrocarbons, genesis and emplacement of magmatic formation of mineral deposits, and crustal deformations. Petroleum engineers are interested in studies of subsurface heat flows. The knowledge of subsurface temperature to properly design the drilling and completion programs and to facilitate accurate log interpretation is necessary. For petroleum engineers, this knowledge is valuable in the proper exploitation of hydrocarbon resources. This research analyzed the thermal process in drilling or completion process. The research presented two analytical methods to determine temperature profile for onshore drilling and numerical methods for offshore drilling during circulating fluid down the drillstring and for the annulus. Finite difference discretization was also introduced to predict the temperature for steady-state in conventional riser drilling and riserless drilling. This research provided a powerful tool for the thermal analysis of wellbore and rheology design of fluid with Visual Basic and Matlab simulators.

Feng, Ming

2011-05-01T23:59:59.000Z

63

Resonant acoustic transducer and driver system for a well drilling string communication system  

DOE Patents (OSTI)

The acoustic data communication system includes an acoustic transmitter and receiver wherein low frequency acoustic waves, propagating in relatively loss free manner in well drilling string piping, are efficiently coupled to the drill string and propagate at levels competitive with the levels of noise generated by drilling machinery also present in the drill string. The transmitting transducer incorporates a mass-spring piezoelectric transmitter and amplifier combination that permits self-oscillating resonant operation in the desired low frequency range.

Chanson, Gary J. (Weston, MA); Nicolson, Alexander M. (Concord, MA)

1981-01-01T23:59:59.000Z

64

Simulation of air and mist drilling for geothermal wells  

SciTech Connect

An improved method for calculating downhole temperatures, pressures, fluid densities and velocities during air drilling has been developed. The basic equations of fluid flow for a gas with cuttings and mist are presented along with a numerical method for their solution. Several applications of this calculational method are given, showing the effect of flow rate and standpipe pressures in typical air and mist drilling situations. 8 refs.

Mitchell, R.F.

1981-01-01T23:59:59.000Z

65

Simulation of air and mist drilling for geothermal wells  

SciTech Connect

An air drilling model has been developed that accounts for cuttings and mist. Comparison of the model results with previous work shows this model to be more conservative. The equations developed are simple enough to be used in hand calculations, but the full capability of the model is more easily obtained with a computer program. Studies with the model show that volume requirements and standpipe pressures are significantly different for mist drilling compared with air drilling. An improved method for calculating downhole temperatures, pressures, fluid densities, and velocities during air drilling has been developed. Improvements on previous methods include the following. A fully transient thermal analysis of the wellbore and formation is used to determine the flowing temperatures. The effects of flow acceleration are included explicitly in the calculation. The slip velocity between the gas and the cuttings is determined by the use of a separate momentum equation for the cuttings. The possibility of critical flow in the wellbore is tested and appropriate changes in the volume flow rate and standpipe pressure are made automatically. The standpipe and flowing pressures are predicted. The analysis is conservative. The effect of the cuttings on the wellbore flow will tend to overpredict the required volume flow rates. In this paper, the basic equations of fluid flow for a gas with cuttings and mist are presented along with a numerical method for their solution. Several applications of this calculational method are given, showing the effect of flow rate and standpipe pressure in typical air and mist drilling situations.

Mitchell, R.F.

1983-11-01T23:59:59.000Z

66

U.S. Geothermal Drills Another Prolific Well at Neal Hot Springs Completes  

Open Energy Info (EERE)

Geothermal Drills Another Prolific Well at Neal Hot Springs Completes Geothermal Drills Another Prolific Well at Neal Hot Springs Completes Production Wells Needed for Project Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: U.S. Geothermal Drills Another Prolific Well at Neal Hot Springs Completes Production Wells Needed for Project Abstract N/A Author U.S. Geothermal Inc. Published Publisher Not Provided, 2010 Report Number N/A DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for U.S. Geothermal Drills Another Prolific Well at Neal Hot Springs Completes Production Wells Needed for Project Citation U.S. Geothermal Inc.. 2010. U.S. Geothermal Drills Another Prolific Well at Neal Hot Springs Completes Production Wells Needed for Project. Boise Idaho: (!) . Report No.: N/A.

67

GRR/Section 5-NV-a - Drilling Well Development | Open Energy Information  

Open Energy Info (EERE)

5-NV-a - Drilling Well Development 5-NV-a - Drilling Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-NV-a - Drilling Well Development 05NVADrillingWellDevelopment.pdf Click to View Fullscreen Contact Agencies Nevada Division of Minerals Nevada Division of Water Resources Regulations & Policies Nevada Revised Statutes (NRS) Nevada Administrative Code (NAC) Triggers None specified Click "Edit With Form" above to add content 05NVADrillingWellDevelopment.pdf 05NVADrillingWellDevelopment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative A person may not drill or operate a geothermal well or drill an exploratory well without obtaining a permit from the Administrator of the Nevada

68

U.S. Nominal Cost per Foot of Dry Wells Drilled (Dollars per...  

Annual Energy Outlook 2012 (EIA)

Dry Wells Drilled (Dollars per Foot) U.S. Nominal Cost per Foot of Dry Wells Drilled (Dollars per Foot) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

69

Private Water Well Testing in Areas Impacted by Marcellus Shale Gas Drilling  

E-Print Network (OSTI)

Private Water Well Testing in Areas Impacted by Marcellus Shale Gas Drilling (Updated November 15th in the absence of shale-gas drilling, well owners are strongly encouraged to evaluate their water on a regular testing in order to more specifically document potential impacts of Marcellus Shale gas development

Manning, Sturt

70

GRR/Section 5-TX-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-TX-a - Drilling and Well Development GRR/Section 5-TX-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-TX-a - Drilling and Well Development 05TXADrillingAndWellDevelopment.pdf Click to View Fullscreen Contact Agencies Railroad Commission of Texas Texas Water Development Board Regulations & Policies 16 TAC 3.5: Application To Drill, Deepen, Reenter, or Plug Back 16 TAC 3.78: Fees and Financial Security Requirements 16 TAC 3.37: Statewide Spacing Rule 16 TAC 3.38: Well Densities 16 TAC 3.39: Proration and Drilling Units: Contiguity of Acreage and Exception 16 TAC 3.33: Geothermal Resource Production Test Forms Required Triggers None specified Click "Edit With Form" above to add content

71

GRR/Section 5-CA-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

5-CA-a - Drilling and Well Development 5-CA-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-CA-a - Drilling and Well Development 05CAADrillingApplicationProcess (1).pdf Click to View Fullscreen Contact Agencies California Department of Conservation, Division of Oil, Gas, and Geothermal Resources Triggers None specified Click "Edit With Form" above to add content 05CAADrillingApplicationProcess (1).pdf 05CAADrillingApplicationProcess (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative The California Department of Conservation, Division of Oil and Gas (DOGGR) administers geothermal well drilling activities (permitting, drilling,

72

Technical and economic evaluation of selected compact drill rigs for drilling 10,000 foot geothermal production wells  

DOE Green Energy (OSTI)

This report summarizes the investigation and evaluation of several {open_quotes}compact{close_quotes} drill rigs which could be used for drilling geothermal production wells. Use of these smaller rigs would save money by reducing mobilization costs, fuel consumption, crew sizes, and environmental impact. Advantages and disadvantages of currently-manufactured rigs are identified, and desirable characteristics for the {open_quotes}ideal{close_quotes} compact rig are defined. The report includes a detailed cost estimate of a specific rig, and an evaluation of the cost/benefit ratio of using this rig. Industry contacts for further information are given.

Huttrer, G.W. [Geothermal Management Company, Inc., Frisco, CO (United States)

1997-11-01T23:59:59.000Z

73

Drilled, driven or bored wells are best disinfected by a well or pump contractor, because it is difficult  

E-Print Network (OSTI)

Drilled, driven or bored wells are best disinfected by a well or pump contractor, because it is difficult for the private owner to thoroughly disinfect these wells. If you suspect that your well may advice on disinfecting your well. The suggestions below are intended to supplement flood precautions

Tullos, Desiree

74

U.S. Footage Drilled for Crude Oil Exploratory Wells (Thousand...  

Annual Energy Outlook 2012 (EIA)

Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's...

75

U.S. Footage Drilled for Natural Gas Exploratory Wells (Thousand...  

Gasoline and Diesel Fuel Update (EIA)

Wells (Thousand Feet) U.S. Footage Drilled for Natural Gas Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's...

76

U.S. Footage Drilled for Natural Gas Developmental Wells (Thousand...  

Annual Energy Outlook 2012 (EIA)

Developmental Wells (Thousand Feet) U.S. Footage Drilled for Natural Gas Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

77

U.S. Footage Drilled for Dry Exploratory Wells (Thousand Feet...  

Gasoline and Diesel Fuel Update (EIA)

Wells (Thousand Feet) U.S. Footage Drilled for Dry Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's 26,439...

78

U.S. Footage Drilled for Dry Exploratory and Developmental Wells...  

Gasoline and Diesel Fuel Update (EIA)

and Developmental Wells (Thousand Feet) U.S. Footage Drilled for Dry Exploratory and Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

79

U.S. Footage Drilled for Dry Developmental Wells (Thousand Feet...  

Gasoline and Diesel Fuel Update (EIA)

Developmental Wells (Thousand Feet) U.S. Footage Drilled for Dry Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9...

80

U.S. Footage Drilled for Crude Oil Developmental Wells (Thousand...  

Annual Energy Outlook 2012 (EIA)

Developmental Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8...

Note: This page contains sample records for the topic "wells drilled successful" 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

U.S. Geothermal Drills Another Prolific Well at Neal Hot Springs...  

Open Energy Info (EERE)

U.S. Geothermal Drills Another Prolific Well at Neal Hot Springs Completes Production Wells Needed for Project Jump to: navigation, search OpenEI Reference LibraryAdd to library...

82

U.S. Average Depth of Crude Oil Exploratory Wells Drilled (Feet ...  

U.S. Energy Information Administration (EIA)

U.S. Average Depth of Crude Oil Exploratory Wells Drilled (Feet per Well) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9; 1940's: 4,232 ...

83

GRR/Section 5-AK-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-AK-a - Drilling and Well Development GRR/Section 5-AK-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-AK-a - Drilling and Well Development 05AKADrillingWellDevelopment.pdf Click to View Fullscreen Contact Agencies Alaska Oil and Gas Conservation Commission Alaska Department of Natural Resources Regulations & Policies Alaska Statutes Alaska Administrative Code Triggers None specified Click "Edit With Form" above to add content 05AKADrillingWellDevelopment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative All wells drilled in search or in support of the recovery of geothermal

84

GRR/Section 5-WA-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-WA-a - Drilling and Well Development GRR/Section 5-WA-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-WA-a - Drilling and Well Development 5-WA-a.pdf Click to View Fullscreen Contact Agencies Washington State Department of Natural Resources Regulations & Policies Geothermal Act 78.60 RCW Geothermal Rules 332-17 WAC Triggers None specified In Washington geothermal drilling and well development are regulated by the Washington State Department of Natural Resources (WSDNR). Geothermal production wells and core holes deeper than 750ft require the developer go through the whole WSDNR permitting process (which requires a public hearing) and require that the developer complete the State Environmental

85

Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing  

Open Energy Info (EERE)

Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling And Testing Details Activities (6) Areas (1) Regions (0) Abstract: This report covers the drilling and testing of the slim well 56-4 at the Reese River Geothermal Project in Lander County, Nevada. This well was partially funded through a GRED III Cooperative Funding Agreement # DE-FC36-04GO14344, from USDOE. Author(s): William R. Henkle, Joel Ronne Published: Geothermal Technologies Legacy Collection, 2008 Document Number: Unavailable DOI: Unavailable Source: View Original Report Compound and Elemental Analysis At Reese River Area (Henkle & Ronne, 2008)

86

Geothermal Well Costs and their Sensitivities to Changes in Drilling and Completion Operations  

SciTech Connect

This paper presents a detailed analysis of the costs of drilling and completing geothermal wells. The basis for much of the analysis is a computer-simulation-based model which calculates and accrues operational costs involved in drilling and completing a well. Geothermal well costs are discussed in general, with special emphasis on variations among different geothermal areas in the United States, effects of escalation and inflation over the past few years, and comparisons of geothermal drilling costs with those for oil and gas wells. Cost differences between wells for direct use of geothermal energy and those for electric generation, are also indicated. In addition, a breakdown of total well cost into its components is presented. This provides an understanding of the relative contributions of different operations in drilling and completions. A major portion of the cost in many geothermal wells is from encountered troubles, such as lost circulation, cementing difficulties, and fishing. These trouble costs are considered through both specific examples and statistical treatment of drilling and completions problems. The sensitivities of well costs to variations in several drilling and completion parameters are presented. The mode1 makes it possible to easily vary parameters such as rates of penetration; bit lifetimes; bit rental, or rig costs; delay times; number of cement plugs; etc. are compared.

Carson, C. C.; Lin, Y.T.

1981-01-01T23:59:59.000Z

87

Drilling for geothermal resources: rules and regulations and minimum well construction standards  

DOE Green Energy (OSTI)

The following geothermal rules and regulations are presented: authority; policy; definitions; drilling; records; blow out prevention; injection wells; abandonment; maintenance; hearings; notice procedures; hearings on refused, limited, or conditioned permit; appeals; penalties; and forms;

Not Available

1978-06-01T23:59:59.000Z

88

U.S. Crude Oil Developmental Wells Drilled (Number of Elements)  

U.S. Energy Information Administration (EIA)

U.S. Crude Oil Developmental Wells Drilled (Number of Elements) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov ... Crude Oil and Natural Gas Exploratory and ...

89

Carbon Sequestration Partner Initiates Drilling of CO2 Injection Well in  

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

Sequestration Partner Initiates Drilling of CO2 Injection Sequestration Partner Initiates Drilling of CO2 Injection Well in Illinois Basin Carbon Sequestration Partner Initiates Drilling of CO2 Injection Well in Illinois Basin February 17, 2009 - 12:00pm Addthis Washington, D.C. -- The Midwest Geological Sequestration Consortium (MGSC), one of seven regional partnerships created by the U.S. Department of Energy (DOE) to advance carbon sequestration technologies nationwide, has begun drilling the injection well for their large-scale carbon dioxide (CO2) injection test in Decatur, Illinois. The test is part of the development phase of the Regional Carbon Sequestration Partnerships program, an Office of Fossil Energy initiative launched in 2003 to determine the best approaches for capturing and permanently storing gases that can contribute

90

Rigs Drilling Gas Wells Are At - Energy Information Administration  

U.S. Energy Information Administration (EIA)

The increasing number of resulting gas well completions have been expanding production in major producing States, such as Texas. For the year 2000, ...

91

Phase 2 drilling operations at the Long Valley Exploratory Well (LVF 51--20)  

DOE Green Energy (OSTI)

This report describes the second drilling phase, completed to a depth of 7588 feet in November 1991, of the Long Valley Exploratory Well near Mammoth Lakes, California. The well in Long Valley Caldera is planned to reach an ultimate depth of 20,000 feet or a bottomhole temperature of 500{degrees}C (whichever comes first). There will be four drilling phases, at least a year apart with scientific experiments in the wellbore between active drilling periods. Phase 1 drilling in 1989 was completed with 20 in. casing from surface to a depth of 2558 ft., and a 3.8 in. core hole was drilled below the shoe to a depth of 2754 in. Phase 2 included a 17-{1/2} in. hole out of the 20 in. shoe, with 13-3/8 in. casing to 6825 ft., and continuous wireline coring below that to 7588 ft. This document comprises a narrative log of the daily activities, the daily drilling reports, mud logger's reports, summary of drilling fluids used, and other miscellaneous records.

Finger, J.T.; Jacobson, R.D.

1992-06-01T23:59:59.000Z

92

Phase 2 drilling operations at the Long Valley Exploratory Well (LVF 51--20)  

SciTech Connect

This report describes the second drilling phase, completed to a depth of 7588 feet in November 1991, of the Long Valley Exploratory Well near Mammoth Lakes, California. The well in Long Valley Caldera is planned to reach an ultimate depth of 20,000 feet or a bottomhole temperature of 500{degrees}C (whichever comes first). There will be four drilling phases, at least a year apart with scientific experiments in the wellbore between active drilling periods. Phase 1 drilling in 1989 was completed with 20 in. casing from surface to a depth of 2558 ft., and a 3.8 in. core hole was drilled below the shoe to a depth of 2754 in. Phase 2 included a 17-{1/2} in. hole out of the 20 in. shoe, with 13-3/8 in. casing to 6825 ft., and continuous wireline coring below that to 7588 ft. This document comprises a narrative log of the daily activities, the daily drilling reports, mud logger's reports, summary of drilling fluids used, and other miscellaneous records.

Finger, J.T.; Jacobson, R.D.

1992-06-01T23:59:59.000Z

93

Geological aspects of drilling horizontal wells in steam flood reservoirs, west side, southern San Joaquin Valley, California  

Science Conference Proceedings (OSTI)

Shell Western E P Inc. has drilled 11 horizontal wells in four mature steam floods in the Coalinga, South Belridge, and Midway-Sunset fields. Two medium radius wells are producing from the Pliocene Etchegoin Formation in Coalinga. One medium radius well is producing from the Pleistocene Tulare Formation in South Belridge field. Three short radius and five medium radius wells are producing from the upper Miocene, Sub-Hoyt and Potter sands in Midway-Sunset field. Horizontal wells at the base of these reservoirs and/or structurally downdip near the oil-water contact are ideally suited to take advantage of the gravity drainage production mechanism. Reservoir studies and production experience have shown these horizontal wells should increase reserves, improve recovery efficiency, improve the oil-steam ratio, and improve project profitability. Geological considerations of targeting the wells vary between fields because of the different depositional environments and resulting reservoir characteristics. The thin sands and semicontinuous shales in the Tulare Formation and the Etchegoin Formation require strict structural control on the top and base of the target sand. In the Sub-Hoyt and Potter sands, irregularities of the oil-water contact and sand and shale discontinuities must be understood. Logging and measurement while drilling provide geosteering capability in medium radius wells. Teamwork between all engineering disciplines and drilling and producing operations has been critical to horizontal well success.

Crough, D.D.; Holman, M.L.; Sande, J.J. (Shell Western E P Inc., Bakersfield, CA (United States))

1994-04-01T23:59:59.000Z

94

GRR/Section 5-UT-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-UT-a - Drilling and Well Development GRR/Section 5-UT-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-UT-a - Drilling and Well Development 05UTADrillingAndWellDevelopment.pdf Click to View Fullscreen Contact Agencies Utah Division of Water Rights Regulations & Policies Utah Geothermal Resource Conservation Act Utah Administrative Code Section R655-1 Triggers None specified Click "Edit With Form" above to add content 05UTADrillingAndWellDevelopment.pdf 05UTADrillingAndWellDevelopment.pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Flowchart Narrative Although not regulated under the Administrative Rules for Water Wells,

95

GRR/Section 5-CO-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

CO-a - Drilling and Well Development CO-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-CO-a - Drilling and Well Development 05COADrillingAndWellDevelopment (1).pdf Click to View Fullscreen Contact Agencies Colorado Division of Water Resources Colorado Oil and Gas Conservation Commission Regulations & Policies Rules and Regulations for Permitting the Development and Appropriation of Geothermal Resources Through the Use of Wells CRS 37-90.5-107 Triggers None specified Click "Edit With Form" above to add content 05COADrillingAndWellDevelopment (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

96

GRR/Section 5-MT-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-MT-a - Drilling and Well Development GRR/Section 5-MT-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-MT-a - Drilling and Well Development 05MTADrillingAndWellDevelopment (1).pdf Click to View Fullscreen Contact Agencies Montana Department of Natural Resources & Conservation Montana Department of Environmental Quality Regulations & Policies MCA 37-43-104: Monitoring Wells MCA 37-43-302: License Requirements MCA 37-43-306: Bonding Requirements Triggers None specified Click "Edit With Form" above to add content 05MTADrillingAndWellDevelopment (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

97

Success of Geothermal Wells: A Global Study | Open Energy Information  

Open Energy Info (EERE)

Success of Geothermal Wells: A Global Study Success of Geothermal Wells: A Global Study Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Success of Geothermal Wells: A Global Study Author International Finance Corporation Organization International Finance Corporation Published International Finance Corporation World Bank Group, 2013 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Success of Geothermal Wells: A Global Study Citation International Finance Corporation (International Finance Corporation). 2013. Success of Geothermal Wells: A Global Study. Washington, D.C.: International Finance Corporation World Bank Group. Retrieved from "http://en.openei.org/w/index.php?title=Success_of_Geothermal_Wells:_A_Global_Study&oldid=687100

98

GRR/Section 5-OR-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

5-OR-a - Drilling and Well Development 5-OR-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-OR-a - Drilling and Well Development 05ORADrillingAndWellDevelopment.pdf Click to View Fullscreen Contact Agencies Oregon Department of Geology and Mineral Industries Oregon Water Resources Department Oregon Department of Fish and Wildlife Oregon Department of Environmental Quality Oregon Department of Land Conservation and Development Oregon Department of State Lands Oregon Department of Energy Oregon Parks and Recreation Department Regulations & Policies ORS 522.005(11) ORS 522.025 ORS 522.115 ORS 522.125 ORS 522.135 Triggers None specified Click "Edit With Form" above to add content 05ORADrillingAndWellDevelopment.pdf

99

GRR/Section 5-ID-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

ID-a - Drilling and Well Development ID-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-ID-a - Drilling and Well Development 05IDADrillingWellDevelopment.pdf Click to View Fullscreen Contact Agencies Idaho Department of Water Resources Regulations & Policies IC §42-233: Appropriation of Water, Geothermal IC §42-4003: Permits IC §42-4004: Processing Applications IC §42-4011: Name of Owner Triggers None specified Click "Edit With Form" above to add content Best Practices Community outreach Talk to the local county Potential Roadblocks Incomplete applications result in longer approval times by IDWR 05IDADrillingWellDevelopment.pdf Error creating thumbnail: Page number not in range.

100

GRR/Section 5-HI-a - Drilling and Well Development | Open Energy  

Open Energy Info (EERE)

GRR/Section 5-HI-a - Drilling and Well Development GRR/Section 5-HI-a - Drilling and Well Development < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 5-HI-a - Drilling and Well Development 05HIADrillingAndModificationOfWellsForInjectionUsePermit (1).pdf Click to View Fullscreen Contact Agencies Hawaii Department of Land and Natural Resources Engineering Division Regulations & Policies Hawaii Administrative Code §13-183-65 Draft Rules Triggers None specified Click "Edit With Form" above to add content 05HIADrillingAndModificationOfWellsForInjectionUsePermit (1).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

Note: This page contains sample records for the topic "wells drilled successful" 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

Horizontal well success spurs more Devonian work in Michigan  

Science Conference Proceedings (OSTI)

The principal objective of this DOE-sponsored project was to drill a horizontal demonstration well in order to test the viability of using horizontal wells to recover bypassed oil from the Dundee reservoir in Crystal field. In addition, a modern log suite through the entire Dundee formation and a conventional core through the productive interval, the oil/water contact, and the upper part of the water leg were to be obtained. During the early years of Dundee development in central Michigan, it was common practice to drill only a short distance below the cap limestone into the top of the Dundee porosity zone before completing a well in order to prevent lost circulation and blowouts in vuggy and fractured dolomites and to avoid penetration of the oil/water contact and minimize water coning. As a result, the characteristics of the Dundee reservoir in central Michigan are poorly known and the decision to attempt an improved recovery program in Crystal field had to be based on field volumetrics, individual well productivities, and well development/abandonment histories. The new core and log data from the demonstration well will provide an important anchor point for regional Dundee reservoir characterization studies.

Wood, J.R.; Allan, J.R.; Huntoon, J.E.; Pennington, W.D. [Michigan Technological Univ., Houghton, MI (United States); Harrison, W.B. III [Western Michigan Univ., Kalamazoo, MI (United States); Taylor, E.; Tester, C.J. [Cronus Development Corp., Traverse City, MI (United States)

1996-10-28T23:59:59.000Z

102

Underbalanced coiled-tubing-drilled horizontal well in the North Sea  

Science Conference Proceedings (OSTI)

Maersk Olie and Gas A/S (Maersk Oil) has drilled a 3,309-ft-long near-horizontal drainhole with coiled tubing to a total measured depth (MD) of 11,000 ft in the Danish sector of the North Sea. The well was completed in may 1994 as a 3{1/2}-in. openhole producer in the Gorm field chalk reservoir. Part of the well was drilled at underbalanced conditions, and oil production rates of up to 1,100 STB/D were reached during drilling. Conventional well-test equipment was used for handling returns. A nearby process facilities platform supplied lift gas and received the produced hydrocarbons during the drilling phase. Worth noting are the penetration of several chert layers, the fairly long reach, and the application of geosteering. Indications were that the well productivity was significantly improved compared with that of a conventionally drilled well, but problems were experienced with borehole stability in a fractured region.

Wodka, P.; Tirsgaard, H.; Damgaard, A.P. [Maersk Oil, Copenhagen (Denmark); Adamsen, C.J. [Maersk Oil, Esbjerg (Denmark)

1996-05-01T23:59:59.000Z

103

Phase III Drilling Operations at the Long Valley Exploratory Well (LVF 51-20)  

DOE Green Energy (OSTI)

During July-September, 1998, a jointly funded drilling operation deepened the Long Valley Exploratory Well from 7178 feet to 9832 feet. This was the third major drilling phase of a project that began in 1989, but had sporadic progress because of discontinuities in tiding. Support for Phase III came from the California Energy Commission (CEC), the International Continental Drilling Program (ICDP), the US Geological Survey (USGS), and DOE. Each of these agencies had a somewhat different agenda: the CEC wants to evaluate the energy potential (specifically energy extraction from magma) of Long Valley Caldera; the ICDP is studying the evolution and other characteristics of young, silicic calderas; the USGS will use this hole as an observatory in their Volcano Hazards program; and the DOE, through Sandia, has an opportunity to test new geothermal tools and techniques in a realistic field environment. This report gives a description of the equipment used in drilling and testing; a narrative of the drilling operations; compiled daily drilling reports; cost information on the project; and a brief summary of engineering results related to equipment performance and energy potential. Detailed description of the scientific results will appear in publications by the USGS and other researchers.

Finger, J.T.; Jacobson, R.D.

1999-06-01T23:59:59.000Z

104

Phase 2 Reese River Geothermal Project Slim Well 56-4 Drilling and Testing  

DOE Green Energy (OSTI)

This report covers the drilling and testing of the slim well 56-4 at the Reese River Geothermal Project in Lander County, Nevada. This well was partially funded through a GRED III Cooperative Funding Agreement # DE-FC36-04GO14344, from USDOE.

Henkle, William R.; Ronne, Joel

2008-06-15T23:59:59.000Z

105

Unique aspects of drilling and completing hot-dry-rock geothermal wells  

DOE Green Energy (OSTI)

Drilling operations at the Fenton Hill Hot Dry Rock (HDR) Geothermal Test Site have led to numerous developments needed to solve the problems caused by a very harsh downhole environment. A pair of deep wells were drilled to approximately 15,000 ft (4.6 km); formation temperatures were in excess of 600/sup 0/F (300/sup 0/C). The wells were directionally drilled, inclined at 35/sup 0/, one above the other, in a direction orthogonal to the least principal stress field. The well site is near the flank of a young silicic composite volcano in the Jemez Mountains of northern New Mexico. The completion of this pair of wells is unique in reservoir development. The lower well was planned as a cold water injector which will be cooled by the introduced water from the static geothermal gradient to about 80/sup 0/F (25/sup 0/C). The upper well will be heated during production to over 500/sup 0/F (250/sup 0/C). The well pair is designed to perform as a closed loop heat-extraction system connected by hydraulic fractures with a vertical spacing of 1200 ft between the wells. These conditions strongly constrain the drilling technique, casing design, cement formulation, and cementing operations.

Carden, R.S.; Nicholson, R.W.; Pettitt, R.A.; Rowley, J.C.

1983-01-01T23:59:59.000Z

106

Phase 1 drilling operations at the Magma Energy Exploratory Well (LVF 51-20)  

DOE Green Energy (OSTI)

This report describes the Phase 1 drilling operations for the Magma Energy Exploratory Well near Mammoth Lakes, California. An important part of the Department of Energy's Magma Energy Program, this well is designed to reach an ultimate depth of 20,000 feet or a bottomhole temperature of 500{degree}C, whichever comes first. There will be four drilling phases, at least a year apart, with scientific investigations in the borehole between the drilling intervals. Phase 1 of this project resulted in a 20 inch cased hole to 2558 feet, with 185 feet of coring beyond that. This document comprises a narrative of the daily activities, copies of the daily mud and lithologic reports, time breakdowns of rig activities, inventories of lost circulation materials, temperature logs of the cored hole, and a strip chart mud log. 2 figs.

Finger, J.T.; Jacobson, R.D.

1990-12-01T23:59:59.000Z

107

U.S. Geothermal Announces Successful Completion of First Well...  

Open Energy Info (EERE)

Number NA DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for U.S. Geothermal Announces Successful Completion of First Well at Neal Hot...

108

Hydraulic Fracturing and Horizontal Gas Well Drilling Reference List Updated June 23, 2011  

E-Print Network (OSTI)

://www.netl.doe.gov/technologies/oil-gas/publications/EPreports/Shale_Gas_Primer_2009.pdf Good of shale gas drilling in New York State, as well as the most comprehensive collection of data and consultant-supplied analyses Addressing the Environmental Risks from Shale Gas Development (2010) Worldwatch

109

Drilling and operating oil, gas, and geothermal wells in an H/sub 2/S environment  

DOE Green Energy (OSTI)

The following subjects are covered: facts about hydrogen sulfides; drilling and operating oil, gas, and geothermal wells; detection devices and protective equipment; hazard levels and safety procedures; first aid; and H/sub 2/S in California oil, gas, and geothermal fields. (MHR)

Dosch, M.W.; Hodgson, S.F.

1981-01-01T23:59:59.000Z

110

Evaluation of polymer free drill-in fluids for use in high productivity, horizontal well completions  

E-Print Network (OSTI)

Advancements in deepwater drilling have necessitated the use of more specialized reservoir drill-in fluids (RDIF). These RDIFs must exhibit unique rheological properties while minimizing formation damage. Xanthan gum biopolymer is generally used as a primary viscosifier in RDIFs. In high salinity brines the high shear rate viscosity that xanthan gum provides can approach levels that could exceed the fracture gradient of the well. Therefore, it is important to maintain a xanthan gum concentration that keeps the equivalent circulating density at a modest level. Reducing the xanthan gum level, however, compromises the hole cleaning properties that the low- shear-rate viscosity provides. Xanthan gum biopolymers are also associated with formation damage, which inhibits the flow of oil and gas during production. A new RDIF, which utilizes no xanthan gum biopolymer, has been recently developed. The new product uses a starch instead of polymer to develop rheological properties. This fluid will primarily be targeted for production zone drilling in highly deviated and horizontal wells. This research focused on filtercake cleanup and the reduced formation damage associated with this biopolymer-free fluid. The behavior of the polymer free fluid was analyzed developing tests at different temperatures, at different drill solids content, and with different treatment fluids. The laboratory methods used were a ceramic disc cell and a linear flow cell. The former will permit an analysis of the time that a certain cleaning treatment takes to flow through a filter cake. The latter simulates well completions in unconsolidated horizontal well reservoirs permitting the estimation of formation damage produced by drilling and completion fluids and the effectiveness of the cleaning treatment applied. Multivariate statistical analysis was performed with the experimental results obtained. Comparison with conventional RDIF data from polymer carbonate and sized salt fluids provided informative contrasts in performance.

Falla Ramirez, Jorge H

2001-01-01T23:59:59.000Z

111

A parametric study on the benefits of drilling horizontal and multilateral wells in coalbed methane reservoirs  

Science Conference Proceedings (OSTI)

Recent years have witnessed a renewed interest in development of coalbed methane (CBM) reservoirs. Optimizing CBM production is of interest to many operators. Drilling horizontal and multilateral wells is gaining Popularity in many different coalbed reservoirs, with varying results. This study concentrates on variations of horizontal and multilateral-well configurations and their potential benefits. In this study, horizontal and several multilateral drilling patterns for CBM reservoirs are studied. The reservoir parameters that have been studied include gas content, permeability, and desorption characteristics. Net present value (NPV) has been used as the yard stick for comparing different drilling configurations. Configurations that have been investigated are single-, dual-, tri-, and quad-lateral wells along with fishbone (also known as pinnate) wells. In these configurations, the total length of horizontal wells and the spacing between laterals (SBL) have been studied. It was determined that in the cases that have been studied in this paper (all other circumstances being equal), quadlateral wells are the optimum well configuration.

Maricic, N.; Mohaghegh, S.D.; Artun, E. [Chevron Energy Technology Co., Houston, TX (USA)

2008-12-15T23:59:59.000Z

112

Laser-Mechanical Drilling for Geothermal Energy: Low-Contact Drilling Technology to Enable Economical EGS Wells  

Science Conference Proceedings (OSTI)

Broad Funding Opportunity Announcement Project: Foro Energy is developing a unique capability and hardware system to transmit high power lasers over long distances via fiber optic cables. This laser power is integrated with a mechanical drilling bit to enable rapid and sustained penetration of hard rock formations too costly to drill with mechanical drilling bits alone. The laser energy that is directed at the rock basically softens the rock, allowing the mechanical bit to more easily remove it. Foro Energy’s laser-assisted drill bits have the potential to be up to 10 times more economical than conventional hard-rock drilling technologies, making them an effective way to access the U.S. energy resources currently locked under hard rock formations.

None

2010-01-15T23:59:59.000Z

113

Temperature histories in geothermal wells: survey of rock thermomechanical properties and drilling, production, and injection case studies  

DOE Green Energy (OSTI)

Thermal and mechanical properties for geothermal formations are tabulated for a range of temperatures and stress conditions. Data was obtained from the technical literature and direct contacts with industry. Thermal properties include heat capacity, conductivity, and diffusivity. Undisturbed geothermal profiles are also presented. Mechanical properties include Youngs modulus and Poisson ratio. GEOTEMP thermal simulations of drilling, production and injection are reported for two geothermal regions, the hot dry rock area near Los Alamos and the East Mesa field in the Imperial Valley. Actual drilling, production, and injection histories are simulated. Results are documented in the form of printed GEOTEMP output and plots of temperatures versus depth, radius, and time. Discussion and interpretation of the results are presented for drilling and well completion design to determine: wellbore temperatures during drilling as a function of depth; bit temperatures over the drilling history; cement temperatures from setting to the end of drilling; and casing and formation temperatures during drilling, production, and injection.

Goodman, M.A.

1981-07-01T23:59:59.000Z

114

Potential impacts of artificial intelligence expert systems on geothermal well drilling costs:  

DOE Green Energy (OSTI)

The Geothermal research Program of the US Department of Energy (DOE) has as one of its goals to reduce the cost of drilling geothermal wells by 25 percent. To attain this goal, DOE continuously evaluates new technologies to determine their potential in contributing to the Program. One such technology is artifical intelligence (AI), a branch of computer science that, in recent years, has begun to impact the marketplace in a number of fields. Expert systems techniques can (and in some cases, already have) been applied to develop computer-based ''advisors'' to assist drilling personnel in areas such as designing mud systems, casing plans, and cement programs, optimizing drill bit selection and bottom hole asssembly (BHA) design, and alleviating lost circulation, stuck pipe, fishing, and cement problems. Intelligent machines with sensor and/or robotic directly linked to AI systems, have potential applications in areas of bit control, rig hydraulics, pipe handling, and pipe inspection. Using a well costing spreadsheet, the potential savings that could be attributed to each of these systems was calculated for three base cases: a dry steam well at The Geysers, a medium-depth Imerial Valley well, and a deep Imperial Valley well. Based on the average potential savings to be realized, expert systems for handling lost circulations problems and for BHA design are the most likely to produce significant results. Automated bit control and rig hydraulics also exhibit high potential savings, but these savings are extremely sensitive to the assumptions of improved drilling efficiency and the cost of these sytems at the rig. 50 refs., 19 figs., 17 tabs.

Satrape, J.V.

1987-11-24T23:59:59.000Z

115

Illinois. The injection well is being drilled into a test area...  

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

option for CO 2 storage. This is the first drilling into the Mount Simon Sandstone since oil and gas exploratory drilling was conducted some 15 to 40 years ago. Drilling...

116

Siting and drilling recommendations for a geothermal exploration well, Wendel-Amedee KGRA, Lassen County, California  

DOE Green Energy (OSTI)

All available exploration data relevant to the GeoProducts leasehold in the Wendel-Amedee KGRA are reviewed and interpreted. On the basis of this interpretation, locations and procedures are recommended for drilling geothermal production wells capable of supplying fluid at a temperature of 250/sup 0/F or greater. The following are covered: stratigraphy and geological history, geologic structure, geochemistry, geophysics, temperature-gradient data, and fluid quality. (MHR)

McNitt, J.R.; Wilde, W.R.

1980-12-01T23:59:59.000Z

117

Drilling Sideways - A Review of Horizontal Well Technology and Its Domestic Application  

Reports and Publications (EIA)

Focuses primarily on domestic horizontal drilling applications, past and present, and on salient aspects of current and near-future horizontal drilling and completion technology.

Robert F. King

1993-04-01T23:59:59.000Z

118

DEVELOPMENT OF GLASS AND GLASS CERAMIC PROPPANTS FROM GAS SHALE WELL DRILL CUTTINGS  

Science Conference Proceedings (OSTI)

The objective of this study was to develop a method of converting drill cuttings from gas shale wells into high strength proppants via flame spheroidization and devitrification processing. Conversion of drill cuttings to spherical particles was only possible for small particle sizes (< 53 {micro}m) using a flame former after a homogenizing melting step. This size limitation is likely to be impractical for application as conventional proppants due to particle packing characteristics. In an attempt to overcome the particle size limitation, sodium and calcium were added to the drill cuttings to act as fluxes during the spheroidization process. However, the flame former remained unable to form spheres from the fluxed material at the relatively large diameters (0.5 - 2 mm) targeted for proppants. For future work, the flame former could be modified to operate at higher temperature or longer residence time in order to produce larger, spherical materials. Post spheroidization heat treatments should be investigated to tailor the final phase assemblage for high strength and sufficient chemical durability.

Johnson, F.; Fox, K.

2013-10-02T23:59:59.000Z

119

INEL/Snake River plain geothermal drilling and testing plan - INEL - 1 well  

DOE Green Energy (OSTI)

A plan for drilling a 7500 ft exploratory hole is described. This hole would be drilled at the Idaho National Engineering Laboratory, so that it could be immediately used by one of the government facilties. The plan details the hole design, describes the drilling program, proposes a testing program, and estimates costs. (MHR)

Miller, L.G.; Prestwich, S.M.; Griffith, J.L.

1978-12-01T23:59:59.000Z

120

Borehole Gravity Measurements in the Salton Sea Scientific Drilling Program Well State 2-14  

DOE Green Energy (OSTI)

Borehole gravity measurements over a depth range from 1737 to 1027 m, and the vertical gradient of gravity above ground were measured at the Salton Sea Scientific Drilling Program well State 2-14. Uncorrected borehole gravimetric densities match values from gamma-gamma logs, indicating that the high densities seen in State 2-14 in the depth range 0.5 to 3 km extend for a few kilometers from the well. The above-ground gradient was found to be 4.1 {micro}gal/m higher than expected; correcting for this value increases the gravimetric density in the borehole. Combining the borehole gravity and estimated vertical gravity gradients on the surface, they find that this densified zone coincides with much of a broad thermal anomaly that has been found to the northeast of the Salton Sea Geothermal Field.

Kasameyer, P. W.; Hearst, J. R.

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Borehole Gravity Measurements in the Salton Sea Scientific Drilling Program Well State 2-14  

DOE Green Energy (OSTI)

Borehole gravity measurements over a depth range from 1737 to 1027 m, and the vertical gradient of gravity above ground were measured at the Salton Sea Scientific Drilling Program well State 2-14. Uncorrected borehole gravimetric densities match values from gamma-gamma logs, indicating that the high densities seen in State 2-14 in the depth range 0.5 to 3 km extend for a few kilometers from the well. The above-ground gradient was found to be 0.0040 mgal/m higher than expected; correcting for this value increases the gravimetric density in the borehole. Combining the borehole gravity and estimated vertical gravity gradients on the surface, they find that this densified zone coincides with much of a broad thermal anomaly that has been found to the northeast of the Salton Sea Geothermal Field.

Kasameyer, P. W.; Hearst, J. R.

1988-01-01T23:59:59.000Z

122

Borehole Gravity Measurements In The Salton Sea Scientific Drilling Program Well State 2-14  

Science Conference Proceedings (OSTI)

Borehole gravity measurements over a depth range from 1737 to 1027 m, and the vertical gradient of gravity were measured at the Salton Sea Scientific Drilling Program well State 2-14. The borehole gravimetric densities matched the well logs, but the surface gradient was found to be 0.0040 mgal/m higher than expected. When the borehole observations are corrected for the observed free air gradient above ground, they produce densities which are nearly uniformly higher than log densities by about 0.07 gm/cm{sup 3}. These measurements require densities in the depth range .5 to 3 km, for a radius of a few kilometers around State 2-14 to be as dense as those found in State 2-14. Combining the borehole gravity and calculated vertical gravity gradients on the surface, we find that this densified zone covers much of a broad thermal anomaly to the northeast of the Salton Sea Geothermal Field.

Kasameyer, P. W.; Hearst, J. R.

1987-01-01T23:59:59.000Z

123

Improved Tubulars for Better Economics in Deep Gas Well Drilling Using Microwave Technology  

Science Conference Proceedings (OSTI)

The main objective of the entire research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Based on the results of the Phase I and insurmountable difficulties faced in the extrusion and de-waxing processes, the approach of achieving the goals of the program was slightly changed in the Phase II in which an approach of microwave sintering combined with Cold Isostatic Press (CIP) and joining (by induction or microwave) has been adopted. This process can be developed into a semicontinuous sintering process if the CIP can produce parts fast enough to match the microwave sintering rates. The main objective of the Phase II research program is to demonstrate the potential to economically manufacture microwave processed coiled tubing with improved performance for extended useful life under hostile coiled tubing drilling conditions. After the completion of the Phase II, it is concluded that scale up and sintering of a thin wall common O.D. size tubing that is widely used in the market is still to be proved and further experimentation and refinement of the sintering process is needed in Phase III. Actual manufacturing capability of microwave sintered, industrial quality, full length tubing will most likely require several million dollars of investment.

Dinesh Agrawal

2006-09-30T23:59:59.000Z

124

Improved Tubulars for Better Economics in Deep Gas Well Drilling using Microwave Technology  

Science Conference Proceedings (OSTI)

The main objective of the entire research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Based on the results of the Phase I and insurmountable difficulties faced in the extrusion and de-waxing processes, the approach of achieving the goals of the program was slightly changed in the Phase II in which an approach of microwave sintering combined with Cold Isostatic Press (CIP) and joining (by induction or microwave) has been adopted. This process can be developed into a semicontinuous sintering process if the CIP can produce parts fast enough to match the microwave sintering rates. The main objective of the Phase II research program is to demonstrate the potential to economically manufacture microwave processed coiled tubing with improved performance for extended useful life under hostile coiled tubing drilling conditions. After the completion of the Phase II, it is concluded that scale up and sintering of a thin wall common O.D. size tubing that is widely used in the market is still to be proved and further experimentation and refinement of the sintering process is needed in Phase III. Actual manufacturing capability of microwave sintered, industrial quality, full length tubing will most likely require several million dollars of investment.

Dinesh Agrawal; Paul Gigl; Mark Hunt; Mahlon Dennis

2007-07-31T23:59:59.000Z

125

Environmental Assessment: Geothermal Energy Geopressure Subprogram. Gulf Coast Well Drilling and Testing Activity (Frio, Wilcox, and Tuscaloosa Formations, Texas and Louisiana)  

DOE Green Energy (OSTI)

The Department of Energy (DOE) has initiated a program to evaluate the feasibility of developing the geothermal-geopressured energy resources of the Louisiana-Texas Gulf Coast. As part of this effort, DOE is contracting for the drilling of design wells to define the nature and extent of the geopressure resource. At each of several sites, one deep well (4000-6400 m) will be drilled and flow tested. One or more shallow wells will also be drilled to dispose of geopressured brines. Each site will require about 2 ha (5 acres) of land. Construction and initial flow testing will take approximately one year. If initial flow testing is successful, a continuous one-year duration flow test will take place at a rate of up to 6400 m{sup 3} (40,000 bbl) per day. Extensive tests will be conducted on the physical and chemical composition of the fluids, on their temperature and flow rate, on fluid disposal techniques, and on the reliability and performance of equipment. Each project will require a maximum of three years to complete drilling, testing, and site restoration.

None

1981-09-01T23:59:59.000Z

126

Interpretation of well log data from four drill holes at Roosevelt Hot Springs KGRA  

DOE Green Energy (OSTI)

Well logs from four drill holes, Utah State Geothermal Wells 14-2, 52-21 and 72-16 and Geothermal Power Corporation's thermal gradient hole GPC-15 have been digitized, plotted and studied. This study had three objectives: (1) to present the well log data in a convenient format for easy study, (2) to determine the nature of the geothermal reservoir rock and fluid properties, and (3) to make some inference on fluid entry locations in the boreholes and their effect on heat flow. The temperature logs and gradients computed from these logs have been used to examine heat flow in the vicinity of the four drill holes. Assumed and calculated thermal conductivities have been used in the analyses, 4 mcal/cm /sup 0/C sec for the alluvium and 7 mcal/cm /sup 0/C sec for the crystalline rocks. The data indicate that 14-2 and 72-16 reside in a dominantly convective heat flow environment, whereas GPC-15 and 52-21 reside in a dominantly conductive heat flow environment. The convective regions are believed to be fracture controlled and only portions of each hole reside totally in a convective region; in each case it is the upper bedrock portion of the hole. In every case the alluvium or upper portion of the alluvium acts as a thermal blanket over the system. Maximum heat flow among the holes, 40 ..mu.. cal/cm/sup 2/ sec, occurs in the vicinity of 72-16 and the lowest heat flow, 4 ..mu.. cal/cm/sup 2/ sec, in the vicinity of GPC-15. (MHR)

Glenn, W.E.; Hulen, J.B.

1979-12-01T23:59:59.000Z

127

Did Devonian shale wells drilled during the 1980`s and early 1990`s in West Virginia measure up to expectations?  

Science Conference Proceedings (OSTI)

In the mid-1980`s, a model of future Devonian shale drilling and production was prepared for the Gas Research Institute (GRI). In late 1995, the West Virginia Geological and Economic Survey (WVGES) was contracted by GRI to evaluate actual drilling and production in the 1980`s and early 1990`s and compare these data to the predictions made in the existing model. Drilling activity data were compiled for the years 1979-1993 for all wells drilled, and for all Devonian shale wells drilled. Monthly and annual production data were summarized for both categories. The Devonian shale wells were subdivided into two subsets: (1) the western black shales trend and (2) the eastern black and gray shales and siltstones trend, according to the play definitions used in the {open_quotes}Atlas of Major Appalachian Gas Reservoirs{close_quotes}. Devonian shale wells were subdivided into vintages by completion year. Finally, each Devonian shale well was assigned to a 30 minute geographic grid or {open_quotes}cell{close_quotes} and production data were compiled and compared between cells. Analysis of the data led to the following conclusions: fewer shale wells were being drilled in the early 1990s, but these wells had better recoveries than the wells drilled in the 1980s. Some grid cells showed higher recoveries for the black and gray shales and siltstones play than in cells with black shale reservoirs alone. These higher recoveries perhaps can be attributed to the common practice of completing and producing shallower zones (i.e. Mississippian sandstones) in addition to the Devonian shales.

Hohn, M.E.; McDowell, R.R.; Matchen, D.L. [West Virginia Geological and Economic Survey, Morgantown, WV (United States); Woods, T.J. [Gas Research Inst., Washington, DC (United States)

1996-09-01T23:59:59.000Z

128

StarWars Laser Technology Applied to Drilling and Completing Gas Wells  

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

u' m .,. . Society of Petroleum Engineers u I SPE 49259 StarWars Laser Technology Applied to Drilling and Completing Gas Wells R.M. Graves, SPE, Colorado School of Mines; and D.G. O'Brien, PE, SPE, Solutions Engineering Copyr@ht 1998, Scdety of Petroleum Engineers, Inc. This paper was prapared for presentation at the 1998 SPE Annual Technicar Conference and Exhibition bald in New Orteans, Lcuisiana, 27-30 September 1998, This paper waa selected for presentation by en SPE Program Commiftee folrowing review of information contained in an abstract submitted by the author(a). Contents of the paper, as prasented, have not been reviewed by the Society of Petroleum Engineers and are subject to correction by the author(s). The materiar, as presented, does not necessarily reflect any position of the .%ciety of Petroleum Engineers, its officers, or members. Papers prasented at SPE meetings

129

Drilling Sideways -- A Review of Horizontal Well Technology and Its Domestic Application  

Gasoline and Diesel Fuel Update (EIA)

TR-0565 TR-0565 Distribution Category UC-950 Drilling Sideways -- A Review of Horizontal Well Technology and Its Domestic Application April 1993 Energy Information Administration Office of Oil and Gas U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Contacts This report was prepared by the Energy Information Administration, Office of Oil and Gas, under the general direction of Diane W. Lique, Director of the Reserves and Natural Gas Division, Craig H. Cranston, Chief of the Reserves and Production Branch, and David F. Morehouse, Senior Supervisory Geologist. Information regarding

130

Project Rio Blanco reentry drilling and testing of RB-E-01 well. Final report  

SciTech Connect

Reentry by the RB-E-01 hole was made through the 7-in. emplacement casing. Details of the drilling operations and test results are presented. (TFD)

1975-10-01T23:59:59.000Z

131

IMPROVED TUBULARS FOR BETTER ECONOMICS IN DEEP GAS WELL DRILLING USING MICROWAVE TECHNOLOGY  

Science Conference Proceedings (OSTI)

The main objective of the research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Originally, it was proposed to accomplish this by developing an efficient and economically viable continuous microwave process to sinter continuously formed/extruded steel powder for the manufacture of seamless coiled tubing and other tubular products. However, based on the results and faced with insurmountable difficulties in the extrusion and de-waxing processes, the approach of achieving the goals of the program has been slightly changed. In the continuation proposal an approach of microwave sintering combined with Cold Isostatic Press (CIP) and joining (by induction or microwave) is adopted. This process can be developed into a semi-continuous sintering process if the CIP can produce parts fast enough to match the microwave sintering rates. Originally, the entire program was spread over three phases with the following goals: Phase I: Demonstration of the feasibility concept of continuous microwave sintering process for tubular steel products. Phase II: Design, building and testing of a prototype microwave system which shall be combined with a continuous extruder for steel tubular objects. Phase III: Execution of the plan for commercialization of the technology by one of the industrial partners. However, since some of the goals of the phase I were not completed, an extension of nine months was granted and we continued extrusion experiments, designed and built semicontinuous microwave sintering unit.

Dinesh Agrawal; Paul Gigl; Mahlon Dennis; Roderic Stanley

2005-03-01T23:59:59.000Z

132

Successful test of new ESP technology for gassy oil wells  

Science Conference Proceedings (OSTI)

Problems producing high free-gas fractions through electric-submersible-pump (ESP) systems have been well-documented. When fluid flows through an ESP, gas bubbles tend to lag behind the liquid in the lower-pressure area of the impeller and gas accumulates in that area over a period of time. When the gas forms a long continuous column, the pump no longer generates a discharge pressure and the equipment shuts down because of amperage underload. The amount of gas a pump can handle without gas locking depends on stage designs and sizes. Smaller pumps with radial stages have been known to handle 10 to 15 vol% free gas, and larger pumps with mixed-flow staging can tolerate 20 to 25 vol%. Today many ESP applications require smaller pumps to handle 30 to 50 vol% free gas and larger pumps to handle 40 to 60 vol%. Wells in Lake Maracaibo have high gas/oil ratios, and their production by use of a standard ESP configuration was not considered a feasible option. The wells are currently on gas lift, but their production is declining and gas for gas lift is expensive. If a newly developed advanced gas-handling (AGH) system can enable an ESP to handle at least 40 vol% free gas, it would be a production option for these wells.

Castro, E. M.; Kalas, P.

1998-07-01T23:59:59.000Z

133

Drilling, completion, stimulation, and testing of BDM/CNGD Well 3997, Lee District, Calhoun County, West Virginia  

SciTech Connect

This report discusses the detailed field operations in drilling, casing, completing, and stimulating the Hunter Bennett No. 3997 well located in Lee District, Calhoun County West Virginia. The project was designed and managed by BDM in cooperation with CNG Development Company. The well was spudded on November 9, 1990, and drilling was completed on December 14, 1990. The well was drilled on an average asmuth of 312 degrees with a total horizontal displacement of 2459 feet. The well was turned to a 90 degree inclination from the vertical over a measured course length of 1216 feet. Approximately 1381 feet of the well had an inclination higher than 86 degrees, while 2179 feet had an inclination greater than 62 degrees. The well was partitioned into five zones for stimulation purposes. Each zone is a little more than 300 feet long. The well was stimulated with nitrogen gas in zones one and two. Early production results are encouraging. The BDM/CNGD horizontal well averaged 147 mcfd of gas over the first week of production and, in week five, began to produce oil at a rate of about 2 bbl/day.

Overbey, W.K. Jr.; Carden, R.S.; Salamy, S.P.; Locke, C.D.; Johnson, H.R.

1992-03-01T23:59:59.000Z

134

Drilling, completion, stimulation, and testing of BDM/CNGD Well 3997, Lee District, Calhoun County, West Virginia. Final report  

SciTech Connect

This report discusses the detailed field operations in drilling, casing, completing, and stimulating the Hunter Bennett No. 3997 well located in Lee District, Calhoun County West Virginia. The project was designed and managed by BDM in cooperation with CNG Development Company. The well was spudded on November 9, 1990, and drilling was completed on December 14, 1990. The well was drilled on an average asmuth of 312 degrees with a total horizontal displacement of 2459 feet. The well was turned to a 90 degree inclination from the vertical over a measured course length of 1216 feet. Approximately 1381 feet of the well had an inclination higher than 86 degrees, while 2179 feet had an inclination greater than 62 degrees. The well was partitioned into five zones for stimulation purposes. Each zone is a little more than 300 feet long. The well was stimulated with nitrogen gas in zones one and two. Early production results are encouraging. The BDM/CNGD horizontal well averaged 147 mcfd of gas over the first week of production and, in week five, began to produce oil at a rate of about 2 bbl/day.

Overbey, W.K. Jr.; Carden, R.S.; Salamy, S.P.; Locke, C.D.; Johnson, H.R.

1992-03-01T23:59:59.000Z

135

Horizontal well construction/completion process in a Gulf of Mexico unconsolidated sand: development of baseline correlations for improved drill-in fluid cleanup practices  

E-Print Network (OSTI)

This thesis examines, in detail, the procedures and practices undertaken in the drilling and completion phases of a Gulf of Mexico horizontal well in an unconsolidated sand. In particular, this thesis presents a detailed case history analysis of well planning, completion and cleanup operations. Our objectives are to present a complete examination of the openhole horizontal well construction/completion process using a new drill-in fluid (DIF). Further, we will establish data critical to development of new cleanup correlation techniques (the continuing goal of the CEA-73 industry consortium). Project results are intended to advance the technology progression of cleanup in horizontal welts by using a "Best Completion Practices'' well to establish a baseline analysis for development of rigsite DIF cleanup correlations. Presented in this thesis are: * Completion specifics of subject well * Audit of horizontal well design/well construction process * Documentation (on-location) of lignite practices * Laboratory analyses of DO cleanup * Well performance analysis Well audit results show that prudent DIF selection requires a thorough understanding of formation and reservoir specifics, along with completion and cleanup operations. Adequate pre-planning by lignite personnel for handling, weather problems, storage/mixing requirements and fluid property maintenance are very important for successful operations using DIF. Proper maintenance of solids control systems is essential for quality control of DIF properties. Detailed well planning by the operator (Vastar Resources), coupled with a conscientious mud service company (TBC-Brinadd, Houston), led to smooth execution of well completion/cleanup operations.aboratory analyses of field DIF samples taken during drilling show that entrained drill solids in DIF can greatly impact mudcaps removal during cleanup. However, well performance was roughly three times original expectations, achieving a stabilized gas flow rate of approximately 34 MMCF/D. Horizontal well decline type curve techniques and a proprietary analysis method developed by Conoco were used to estimate formation properties, using only wellhead production rates and pressures. Using these results, we estimated DIF cupcake removal for various reservoir permeability scenarios. Results suggest that a high percentage of DIF filtercake removal was achieved only if reservoir permeability was less than the permeability range (100-500 md) initially estimated by the operator.

Lacewell, Jason Lawrence

1999-01-01T23:59:59.000Z

136

Mexican-American cooperative program at the Cerro Prieto geothermal field: recent results of the well-drilling program at Cerro Prieto  

DOE Green Energy (OSTI)

The results of the 1980 and 1981 well drilling activities at the Cerro Prieto geothermal field are summarized. Details are given on the new series of deeper wells completed in the western (older) part of the field (Cerro Prieto I), and on the development and step-out wells drilled in the eastern part of the field (Cerro Prieto II and III). Production characteristics of on-line and standby wells are discussed. Recent changes in well completion procedures are also described.

Dominguez A, B.; Lippmann, M.J.; Bermejo M.; F.

1981-12-01T23:59:59.000Z

137

Recent Drilling Activities At The Earth Power Resources Tuscarora...  

Open Energy Info (EERE)

25 to 35 feet per hour. This information has greatly reduced the original estimated well costs that were based on previous exploration drilling efforts. Successful production...

138

Underbalanced drilling in remedial operations  

Science Conference Proceedings (OSTI)

Operators are finding additional applications for underbalanced drilling (UBD) technology that deliver benefits besides faster, more trouble-free drilling and improved well productivity. Underbalanced workovers, completions and re-drills are being performed with impressive results. This article will describe some of the jobs and applications, and detail the special surface equipment being used to make this a success. This is the fifth in a series of articles on UBD technology and its rapid development in this field. The paper discusses deep gas wells in the Texas Panhandle, gas and condensate wells near Mobile, Alabama, and the Austin Chalk wells in Texas and Louisiana.

Cuthbertson, R.L.; Vozniak, J.

1997-06-01T23:59:59.000Z

139

Reverse trade mission on the drilling and completion of geothermal wells  

DOE Green Energy (OSTI)

This draft report was prepared as required by Task No. 2 of the US Department of Energy, Grant No. DE-FG07-89ID12850 Reverse Trade Mission to Acquaint International Representatives with US Power Plant and Drilling Technology'' (mission). As described in the grant proposal, this report covers the reactions of attendees toward US technology, its possible use in their countries, and an evaluation of the mission by the staff leaders. Note this is the draft report of one of two missions carried out under the same contract number. Because of the diversity of the mission subjects and the different attendees at each, a separate report for each mission has been prepared. This draft report has been sent to all mission attendees, specific persons in the US Department of Energy and Los Alamos National Lab., the California Energy Commission (CEC), and various other governmental agencies.

Not Available

1989-09-09T23:59:59.000Z

140

Shale gas in the southern central area of New York State: Part II. Experience of locating and drilling four shale-gas wells in New York State  

Science Conference Proceedings (OSTI)

Four shale-gas wells have been located and drilled in the south-central area of New York State as part of this project. The four wells that were drilled are: the Rathbone well, in Steuben County, was located on the north side of a graben, in an old shale-gas field; it penetrated the Rhinestreet, Geneseo and Marcellus shales. Artificial stimulation was performed in the Rhinestreet, without marked success, and in the Marcellus; the latter formation has a calculated open flow of 110 Mcf/day and appears capable of initial production of 100 Mcf/day against a back-pressure of 500 psi. The Dansville well, in Livingston County, tested the Geneseo and Marcellus shales at shallower depth. Artificial stimulation was performed in the Marcellus. The calculated open flow is 95 Mcf/day, and the well appears capable of initial production of 70 Mcf/day against a back-pressure of 300 psi. The Erwin and N. Corning wells, both near Corning in Steuben County, were designed to test the possibility of collecting gas from a fractured conduit layer connecting to other fracture systems in the Rhinestreet shale. The N. Corning well failed; the expected conduit was found to be only slightly fractured. The Erwin well encountered a good initial show of gas at the conduit, but the gas flow was not maintained; even after artificial stimulation the production is only 10 Mcf/day. The present conclusion is that the most likely source of shale gas in south-central New York is the Marcellus shale formation. Important factors not yet established are the decline rate of Marcellus production and the potential of the Geneseo after stimulation.

Not Available

1981-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" from the National Library of EnergyBeta (NLEBeta).
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141

U.S. Geothermal Announces Successful Completion of First Well at Neal Hot  

Open Energy Info (EERE)

U.S. Geothermal Announces Successful Completion of First Well at Neal Hot U.S. Geothermal Announces Successful Completion of First Well at Neal Hot Springs Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: U.S. Geothermal Announces Successful Completion of First Well at Neal Hot Springs Abstract N/A Author U.S. Geothermal Inc. Published Publisher Not Provided, 2008 Report Number N/A DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for U.S. Geothermal Announces Successful Completion of First Well at Neal Hot Springs Citation U.S. Geothermal Inc.. 2008. U.S. Geothermal Announces Successful Completion of First Well at Neal Hot Springs. Boise Idaho: (!) . Report No.: N/A. Retrieved from "http://en.openei.org/w/index.php?title=U.S._Geothermal_Announces_Successful_Completion_of_First_Well_at_Neal_Hot_Springs&oldid=682770"

142

Underbalanced drilling with air offers many pluses  

Science Conference Proceedings (OSTI)

A pressure overbalance during conventional drilling can cause significant fluid filtrate invasion and lost circulation. Fluid invasion into the formation can lead to formation damage, high mud costs, a need for expensive completions, and well productivity impairment. Because underbalanced drilling creates a natural tendency for fluid and gas to flow from the formation to the borehole, successful underbalanced drilling depends upon the appropriate selection of circulating fluid. The use of a compressible fluid in the circulating system, referred to as air drilling, lowers the downhole pressure, allowing drilling into and beyond these sensitive formations. The paper discusses the equipment needed; well control; downhole air requirements; air drilling techniques using dry air, air-mist, stable foam, stiff foam, and aerated-fluid; downhole fires; directional air drilling; and well completions.

Shale, L. [Baker Hughes Inteq, Houston, TX (United States)

1995-06-26T23:59:59.000Z

143

Drilling optimization using drilling simulator software  

E-Print Network (OSTI)

Drilling operations management will face hurdles to reduce costs and increase performance, and to do this with less experience and organizational drilling capacity. A technology called Drilling Simulators Software has shown an extraordinary potential to improve the drilling performance and reduce risk and cost. Different approaches have been made to develop drilling-simulator software. The Virtual Experience Simulator, geological drilling logs, and reconstructed lithology are some of the most successful. The drilling simulations can run multiple scenarios quickly and then update plans with new data to improve the results. Its storage capacity for retaining field drilling experience and knowledge add value to the program. This research shows the results of using drilling simulator software called Drilling Optimization Simulator (DROPS®) in the evaluation of the Aloctono block, in the Pirital field, eastern Venezuela. This formation is characterized by very complex geology, containing faulted restructures, large dips, and hard and abrasive rocks. The drilling performance in this section has a strong impact in the profitability of the field. A number of simulations using geological drilling logs and the concept of the learning curve defined the optimum drilling parameters for the block. The result shows that DROPS® has the capability to simulate the drilling performance of the area with reasonable accuracy. Thus, it is possible to predict the drilling performance using different bits and the learning-curve concept to obtain optimum drilling parameters. All of these allow a comprehensive and effective cost and drilling optimization.

Salas Safe, Jose Gregorio

2003-05-01T23:59:59.000Z

144

Methane contamination of drinking water accompanying gas-well drilling and  

E-Print Network (OSTI)

- matically increasing natural-gas extraction. In aquifers overlying the Marcellus and Utica shale formations of drinking water associated with shale- gas extraction. In active gas-extraction areas (one or more gas wells methane sources such as the Marcellus and Utica shales at the active sites and matched gas geochemistry

145

Laboratory tests to evaluate and study formation damage with low-density drill-in fluids (LDDIF) for horizontal well completions in low pressure and depleted reservoirs  

E-Print Network (OSTI)

The increasing number of open hole horizontal well completions in low-pressure and depleted reservoirs requires the use of non-damaging low-density drill-in fluids (LDDIF) to avoid formation damage and realize optimum well productivity. To address this need we have formulated new LDDIFS with specific density lower than 1.0 sg (8.34 ppg) specifically to drill and complete low pressure and depleted reservoirs with minimum formation damage and maximum production. These materials exhibit typical drilling fluid characteristics, allowing the well to be safely drilled (0 required well depth but also perform as completion fluids, lessening formation damage to a greater extent than fluids with greater density and higher wellbore pressures. The new LDDIF incorporates low-density hollow glass spheres (HGS) to allow near-balanced drilling in low pressure and depleted reservoirs. The LDDIF uses potassium chloride (KCI) brine as the base fluid because of its low density and inhibition of clay hydration and employs low concentrations of the HGS so that fluid rheology is not altered. We have conducted extensive laboratory testing to compare performance of the HGS LDDIF with that of conventional horizontal well DIFs. Experiments consisted of permeability regain tests on unconsolidated sands with sand control screens. Test variables included temperature, concentration of drill solids cleanup technique and HGS concentration. Test results have shown that the new fluids are up to 50% easier to remove from the wellbore formation faces and provide higher productivity than higher density fluids. Such results indicate that higher well productivity from wells with less impairment would offset any added costs of HGS additives in the fluids.

Chen, Guoqiang

2002-01-01T23:59:59.000Z

146

Geopressured-geothermal drilling and testing plan. General Crude Oil--Dept. of Energy Pleasant Bayou No. 1 well, Brazoria County, Texas  

DOE Green Energy (OSTI)

As a result of geopressured resource assessment studies in the Gulf Coast region, the Brazoria fairway, located in Brazoria County, Texas was determined to be an optimum area for additional studies. A plan is presented for drilling, completion, and testing of one geopressured-geothermal well and two disposal wells in Brazoria County, Texas. The objectives of the well drilling and testing program are to determine the following parameters: reservoir permeability, porosity, thickness, rock material properties, depth, temperature, and pressure; reservoir fluid content, specific gravity, resistivity, viscosity, and hydrocarbons in solution; reservoir fluid production rates, pressure, temperature, production decline, and pressure decline; geopressured well and surface equipment design requirements for high-volume production and possible sand production; specific equipment design for surface operations, hydrocarbons distribution, and effluent disposal; and possibilities of reservoir compaction and/or surface subsidence. (JGB)

Not Available

1978-05-01T23:59:59.000Z

147

Managed Pressure Drilling Candidate Selection  

E-Print Network (OSTI)

Managed Pressure Drilling now at the pinnacle of the 'Oil Well Drilling' evolution tree, has itself been coined in 2003. It is an umbrella term for a few new drilling techniques and some preexisting drilling techniques, all of them aiming to solve several drilling problems, including non-productive time and/or drilling flat time issues. These techniques, now sub-classifications of Managed Pressure Drilling, are referred to as 'Variations' and 'Methods' of Managed Pressure Drilling. Although using Managed Pressure Drilling for drilling wells has several benefits, not all wells that seem a potential candidate for Managed Pressure Drilling, need Managed Pressure Drilling. The drilling industry has numerous simulators and software models to perform drilling hydraulics calculations and simulations. Most of them are designed for conventional well hydraulics, while some can perform Underbalanced Drilling calculations, and a select few can perform Managed Pressure Drilling calculations. Most of the few available Managed Pressure Drilling models are modified Underbalanced Drilling versions that fit Managed Pressure Drilling needs. However, none of them focus on Managed Pressure Drilling and its candidate selection alone. An 'Managed Pressure Drilling Candidate Selection Model and software' that can act as a preliminary screen to determine the utility of Managed Pressure Drilling for potential candidate wells are developed as a part of this research dissertation. The model and a flow diagram identify the key steps in candidate selection. The software performs the basic hydraulic calculations and provides useful results in the form of tables, plots and graphs that would help in making better engineering decisions. An additional Managed Pressure Drilling worldwide wells database with basic information on a few Managed Pressure Drilling projects has also been compiled that can act as a basic guide on the Managed Pressure Drilling variation and project frequencies and aid in Managed Pressure Drilling candidate selection.

Nauduri, Anantha S.

2009-05-01T23:59:59.000Z

148

Geothermal test-well drilling program for the Village of Jemez Springs, New Mexico. Final technical report, January 1, 1979-June 30, 1981  

DOE Green Energy (OSTI)

The geothermal resources located during test drilling at Jemez Springs, New Mexico are described and the feasibility of utilizing this low-temperature resource for a space heating demonstration project at the Town Hall and Fire Department Building is discussed. A test well was drilled to a depth of 824 feet that penetrated water-producing zones at 80 feet with a water temperature of approximately 150 to 155/sup 0/F and at 500 feet with waters of approximately 120 to 125/sup 0/F. After a number of repairs to the Jemez Springs Well Number 1, the project was ended having completed a well capable of producing a flow of approximately 20 gpm at 150 to 155/sup 0/F. A follow-up demonstration heating project is planned.

Armenta, E.; Icerman, L.; Starkey, A.H.

1981-09-01T23:59:59.000Z

149

Shale gas in the southern central area of New York State. Volume III. Experience of drilling five shale-gas wells in New York State  

SciTech Connect

Five shale-gas wells have been located and drilled in the South-Central areas of New York State as part of this program. The program was undertaken by Arlington Exploration Company (AEC) during 1981 and 1982. The wells were drilled on educational properties in an attempt to demonstrate the economic prospect of natural gas for institutional and small commercial consumers to develop their own source of energy. All five wells were completed in the Marcellus section of the Devonian shale. Each of the five wells was connected to an appropriate heat load for the purpose of production testing. The project supports the theory that a well drilled anywhere in South-Central New York and completed in the Marcellus Shale using modern fracturing techniques (i.e. nitrogen foam) is likely to produce some gas. Important factors not yet predictable are the decline rate of Marcellus production and the volume of recoverable reserves. Depths to the Marcellus Shale generally increase from north (i.e. Houghton College) to south (i.e. Portville Central School).

Not Available

1983-03-01T23:59:59.000Z

150

Navigation drilling technology progresses  

SciTech Connect

This article reports that navigation drilling - an approach that combines advanced drill bit, downhole motor, measurement-while-drilling, and well planning technology into an integrated, steerable drilling system - has reduced drilling time for operating companies worldwide. A major operating advantage of navigation drilling is the ability to drill both straight and directional intervals with a single assembly. In conventional directional drilling, a bent sub and downhole motor (or a bent housing motor) are used to initiate kick-offs and make course corrections. The bent sub is made-up above the motor, tilting the motor's axis 1 to 3 degrees compared to the axis of the drill string. The assembly toolface can be aligned in the desired direction with a single-shot, a steering tool or an MWD system.

Bayne, R.

1986-11-01T23:59:59.000Z

151

Acoustical properties of drill strings  

DOE Green Energy (OSTI)

The recovery of petrochemical and geothermal resources requires extensive drilling of wells to increasingly greater depths. Real-time collection and telemetry of data about the drilling process while it occurs thousands of feet below the surface is an effective way of improving the efficiency of drilling operations. Unfortunately, due to hostile down-hole environments, telemetry of this data is an extremely difficult problem. Currently, commercial systems transmit data to the surface by producing pressure pulses within the portion of the drilling mud enclosed in the hollow steel drill string. Transmission rates are between two and four data bits per second. Any system capable of raising data rates without increasing the complexity of the drilling process will have significant economic impact. One alternative system is based upon acoustical carrier waves generated within the drill string itself. If developed, this method would accommodate data rates up to 100 bits per second. Unfortunately, the drill string is a periodic structure of pipe and threaded tool joints, the transmission characteristics are very complex and exhibit a banded and dispersive structure. Over the past forty years, attempts to field systems based upon this transmission method have resulted in little success. This paper examines this acoustical transmission problem in great detail. The basic principles of acoustic wave propagation in the periodic structure of the drill string are examined through theory, laboratory experiment, and field test. The results indicate the existence of frequency bands which are virtually free of attenuation and suitable for data transmission at high bit rates. 9 refs., 38 figs., 2 tabs.

Drumheller, D.S.

1988-08-01T23:59:59.000Z

152

Sweet lake geopressured-geothermal project, Magma Gulf-Technadril/DOE Amoco Fee. Annual report, December 1, 1979-February 27, 1981. Volume I. Drilling and completion test well and disposal well  

DOE Green Energy (OSTI)

The Sweet lake site is located approximately 15 miles southeast of Lake Charles in Cameron Parish, Louisiana. A geological study showed that the major structure in this area is a graben. The dip of the beds is northwesterly into the basin. A well drilled into the deep basin would find the target sand below 18,000', at high pressures and temperatures. However, since there is no well control in the basin, the specific site was chosen on the 15,000' contour of the target sand in the eastern, more narrow part of the garben. Those key control wells are present within one mile of the test well. The information acquired by drilling the test well confirmed the earlier geologic study. The target sand was reached at 15,065', had a porosity of over 20% and a permeability to water of 300 md. The original reservoir pressure was 12,060 psi and the bottom hole temperature 299{sup 0}F. There are approximately 250 net feet of sand available for the perforation. The disposal well was drilled to a total depth of 7440'.

Rodgers, R.W. (ed.)

1982-06-01T23:59:59.000Z

153

Underbalanced drilling in the Piceance basin. Final report, June 1997  

Science Conference Proceedings (OSTI)

Underbalanced drilling technology is established and fairly well understood in some areas in the U.S. such as Appalachia. The primary objective of this cooperative project in the Piceance Basin was to use underbalanced drilling technologies to reduce rates of penetration such that significant cost reductions could occur. Fluids evaluated included air/mist, stiff foams and aerated muds. Underbalanced drilling was successful particularly in the surface hole; however, heaving shales in the Wasatch section were problematic.

Lewis, C.A.; Graham, R.L.

1997-06-01T23:59:59.000Z

154

Formation damage studies of lubricants used with drill-in fluids systems on horizontal open-hole wells  

E-Print Network (OSTI)

Tests were conducted to evaluate the effect of lubricants in formation damage. Two types of lubricants were tested along with two types of drill-in fluids. The DIF's tested included a sized-calcium carbonate (SCC) and a sized-salt (SS). Also a set of variables including drill solids content (2%-6%), hydrochloric acid concentration (2%-10%), and temperature (110°F-160°F) were changed during the testing procedure. A matrix design was used to determine the behavior in regain permeability and break through time depending on the different variables in the testing, and two devices were used to measure responses, Conoco cell and ceramic disc cell respectively. Results have shown that regain permeability and break through time responses are not affected in a greater degree when lubricants (Idlube or Mil-Lube) are added to the DIF systems (SS and SCC). When comparing results between lubricants, Idlube gives a higher regain permeability percentage and faster break through time at higher concentrations than Mil-Lube in both DIF systems. Overall, sized calcium carbonate seems to be a better DIF system than Sized salt for these types of experiments, being much more efficient in reducing break through times than in increasing regain permeability.

Gutierrez, Fernando A

2000-01-01T23:59:59.000Z

155

Challenges of deep drilling  

SciTech Connect

Deep drilling poses major problems when high temperatures, high pressures, and acid gases are encountered. A combination of these items usually requires extensive planning, exotic materials, long drilling times, and heavy expenditures. Only 2 wells have been drilled below 30,000 ft in the US, the deeper a 31,441-ft hole in 1974. The deepest well in the world is reported to be in the Soviet Union, recently drilled below 34,895 ft, with a target depth of 15,000 m (49,212 ft). A review of current deep drilling technology and its capabilities is given.

Chadwick, C.E.

1981-07-01T23:59:59.000Z

156

Drilling Waste Management Fact Sheet: Drilling Practices That Minimize  

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

Drilling Practices Drilling Practices Fact Sheet - Drilling Practices That Minimize Generation of Drilling Wastes How Are Wells Typically Drilled? The conventional process of drilling oil and gas wells uses a rotary drill bit that is lubricated by drilling fluids or muds. As the drill bit grinds downward through the rock layers, it generates large amounts of ground-up rock known as drill cuttings. This section of the Drilling Waste Management Information System website discusses several alternative drilling practices that result in a lower volume of waste being generated. Oil and gas wells are constructed with multiple layers of pipe known as casing. Traditional wells are not drilled from top to bottom at the same diameter but rather in a series of progressively smaller-diameter intervals. The top interval is drilled starting at the surface and has the largest diameter hole. Drill bits are available in many sizes to drill different diameter holes. The hole diameter can be 20" or larger for the uppermost sections of the well, followed by different combinations of progressively smaller diameters. Some of the common hole diameters are: 17.5", 14.75", 12.25", 8.5", 7.875", and 6.5".

157

Turnkey drilling  

SciTech Connect

The recent surge in the popularity of turnkey drilling has produced a number of questions about turnkey operations from both operators and contractors. The International Association of Drilling Contractors (IADC) has no approved turnkey contract (although several of the member districts have printed one), leaving the parties participating in a turnkey well unsure of their responsibilities and obligations. Additionally, operators are finding liens filed against turnkey wells they thought were paid for. The term turnkey itself is often misunderstood and applied to a variety of guaranteed well commitments. Some turnkeys require the contractor to provide everything from location preparation to final production pipe or plugs. Others allow contingencies for stuck pipe, lost circulation, kicks and bad storms.

Pierce, D.

1986-11-01T23:59:59.000Z

158

Underbalanced drilling benefits now available offshore  

Science Conference Proceedings (OSTI)

Offshore underbalanced drilling (UBD) is a reality. Applications in older, partially depleted fields and new fields are being considered. However, low productivity reservoirs and fields with sub normal pressures causing drilling problems are currently the main targets for offshore UBD. With proper planning and the correct technique, both jointed pipe and coiled tubing UBD drilling operations have been carried out offshore with success. The main concerns for offshore UBD have been altered drilling practices and surface production system operation. These issues have been examined and equipment has been designed and tested to address them. Environmental, safety and health issues are paramount and have been studied carefully. Detailed well planning, engineering, and flow modeling have proven critical for successful offshore UBD operations. Examples are given from oil and gas fields.

Vozniak, J.P.; Cuthbertson, B.; Nessa, D.O.

1997-05-01T23:59:59.000Z

159

An innovative drilling system  

Science Conference Proceedings (OSTI)

The principal project objectives were the following: To demonstrate the capability of the Ultrashort Radius Radial System to drill and complete multiple horizontal radials in a heavy oil formation which had a production history of thermal operations. To study the effects that horizontal radials have on steam placement at specific elevations and on reducing gravity override. To demonstrate that horizontal radials could be utilized for cyclic production, i.e. for purposes of oil production as well as for steam injection. Each of these objectives was successfully achieved in the project. Early production results indicate that radials positively influenced cyclic performance. This report documents those results. 15 refs., 29 figs., 1 tab.

Nees, J.; Dickinson, E.; Dickinson, W.; Dykstra, H.

1991-05-01T23:59:59.000Z

160

Review of the Drilling R and D Program at Sandia  

DOE Green Energy (OSTI)

Drilling projects conducted for the Division of Geothermal Energy (DGE) and the Office of Energy Research (OER), both of the Department of Energy (DOE), are described. The DGE Well Technology Program includes drilling, well completion, and high temperature logging instrumentation R and D for geothermal applications. Accomplishments to date include successful laboratory testing of the continuous chain drill and development of temperature, pressure, and flow sondes capable of operation at 275/sup 0/C. Efforts are also under way to develop high-temperature, high-performance bits, high-temperature drilling fluids, and high-temperature downhole motors. Bearings, seals, and lubricants for use in high-temperature bits and motors are also being developed and tested. Recent results are presented. An OER drilling experiment into a lava lake at Kilauea Iki, Hawaii, is being conducted. Materials and techniques for drilling into an active magma/hydrothermal system are in a preliminary phase of study.

Stoller, H.M.

1978-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

HydroPulse Drilling  

Science Conference Proceedings (OSTI)

Tempress HydroPulse{trademark} tool increases overbalanced drilling rates by generating intense suction pulses at the drill bit. This report describes the operation of the tool; results of pressure drilling tests, wear tests and downhole drilling tests; and the business case for field applications. The HydroPulse{trademark} tool is designed to operate on weighted drilling mud at conventional flow rates and pressures. Pressure drilling tests confirm that the HydroPulse{trademark} tool provides 33% to 200% increased rate of penetration. Field tests demonstrated conventional rotary and mud motor drilling operations. The tool has been operated continuous for 50 hours on weighted mud in a wear test stand. This level of reliability is the threshold for commercial application. A seismic-while-drilling version of the tool was also developed and tested. This tool was used to demonstrate reverse vertical seismic profiling while drilling an inclined test well with a PDC bit. The primary applications for the HydroPulse{trademark} tool are deep onshore and offshore drilling where rate of penetration drives costs. The application of the seismic tool is vertical seismic profiling-while-drilling and look-ahead seismic imaging while drilling.

J.J. Kolle

2004-04-01T23:59:59.000Z

162

300-Area VOC Program Slug Test Characterization Results for Selected Test/Depth Intervals Conducted During the Drilling of Well 399-3-21  

SciTech Connect

This report presents brief test descriptions and analysis results for multiple, stress-level slug tests that were performed at selected test/depth intervals within well 399-3-21 as part of the 300-Area volatile organic compound characterization program. The test intervals were characterized as the borehole was advanced to its final drill depth (45.7 m) and before its completion as a monitor-well facility. The primary objective of the slug tests was to provide information pertaining to the vertical distribution of hydraulic conductivity with depth at this location and to select the final screen-depth interval for the monitor well. This type of characterization information is important for predicting/simulating contaminant migration (i.e., numerical flow/transport modeling) and designing proper monitor-well strategies within this area.

Spane, Frank A.

2007-07-19T23:59:59.000Z

163

Snubdrilling a new well in Venezuela  

Science Conference Proceedings (OSTI)

A new well was successfully drilled using a snubbing jack. The drill bit was rotated using a rotary table, downhole motors and combination of the two. Expected high-pressure zones prompted this use of ``snubdrilling.`` The primary objective was to drill a vertical well through underlying sands and gain information about formation pressures. This data would aid in the drilling of a relief well using a conventional drilling rig. The secondary objective was to relieve pressure by putting this new well on production. In addition to special high-pressure drilling jobs, there are other drilling applications where snubbing jacks are a feasible alternative to conventional rotary drilling rigs or coiled tubing units. Slimhole, underbalanced and flow drilling, and sidetracking of existing wells are excellent applications for snubdrilling. Advantages of snubdrilling vs. coiled tubing drilling, include ability to rotate drillstrings, use high-torque downhole motors, pump at high rates and pressures, apply significant overpull in case of stuck pipe, and run casing and liners without rigging down. Shortcomings of drilling with snubbing jacks compared to coiled tubing are the need to stop circulation while making new connections and inability to run continuous cable inside workstrings.

Aasen, J.

1995-12-01T23:59:59.000Z

164

Formation damage in underbalanced drilling operations  

E-Print Network (OSTI)

Formation damage has long been recognized as a potential source of reduced productivity and injectivity in both horizontal and vertical wells. From the moment that the pay zone is being drilled until the well is put on production, a formation is exposed to a series of fluids and operations that can reduce its productive capacity. Any process that causes a loss in the productivity of an oil-, gas-, or water-saturated formation has a damaging effect on the reservoir. These damage mechanisms predominantly fall into three major classifications: mechanical, chemical, and biological. Underbalanced drilling operations involve drilling a portion of the wellbore at fluid pressures less than that of the target formation. This technology has been used to prevent or minimize problems associated with invasive formation damage, which often greatly reduces the productivity of oil and gas reservoirs, mainly in openhole horizontal-well applications. Underbalanced drilling is not a solution for all formation-damage problems. Damage caused by poorly designed and/or executed underbalanced drilling programs can equal or exceed that which may occur with a well-designed conventional overbalanced drilling program. Four techniques are currently available to achieve underbalanced conditions while drilling. These include using lightweight drilling fluids, injecting gas down the drillpipe, injecting gas into a parasite string, and using foam. This study provides an analysis of a number of potential damage mechanisms present when drilling underbalanced. It describes each one and its influence on the productivity of a well. Additionally it presents a general description of the different techniques that can be applied to carry out successful, cost-effective UBD operations, and discusses how these techniques may be used to reduce or eliminate formation damage.

Reyes Serpa, Carlos Alberto

2003-01-01T23:59:59.000Z

165

Proper planning improves flow drilling  

Science Conference Proceedings (OSTI)

Underbalanced operations reduce formation damage, especially in horizontal wells where zones are exposed to mud for longer time periods. Benefits, risks, well control concerns, equipment and issues associated with these operations are addressed in this paper. Flow drilling raises many concerns, but little has been published on horizontal well control and flow drilling operations. This article covers planning considerations for flow drilling, but does not address horizontal ''overbalanced'' drilling because considerations and equipment are the same as in vertical overbalanced drilling and many references address that subject. The difference in well control between vertical and horizontal overbalanced drilling is fluid influx behavior and how that behavior affects kill operations.

Collins, G.J. (Marathon Oil Co., Houston, TX (United States))

1994-10-01T23:59:59.000Z

166

Drilling in the Rockies  

Science Conference Proceedings (OSTI)

Despite rugged drilling conditions and high drilling costs, rig employment and drilling operations in the Rocky Mountain region of the Overthrust Belt have increased significantly since 1979. Rate of rig employment, well depths, and number of operating companies and contractors in the area are reported. By October 1980, more than 500 active rigs were working in the region, 30% more than were working during the entirety of 1979. (3 photos)

Peacock, D.

1980-12-01T23:59:59.000Z

167

Advanced drilling systems study  

DOE Green Energy (OSTI)

This work was initiated as part of the National Advanced Drilling and Excavation Technologies (NADET) Program. It is being performed through joint finding from the Department of Energy Geothermal Division and the Natural Gas Technology Branch, Morgantown Energy Technology Center. Interest in advanced drilling systems is high. The Geothermal Division of the Department of Energy has initiated a multi-year effort in the development of advanced drilling systems; the National Research Council completed a study of drilling and excavation technologies last year; and the MIT Energy Laboratory recently submitted a proposal for a national initiative in advanced drilling and excavation research. The primary reasons for this interest are financial. Worldwide expenditures on oil and gas drilling approach $75 billion per year. Also, drilling and well completion account for 25% to 50% of the cost of producing electricity from geothermal energy. There is incentive to search for methods to reduce the cost of drilling. Work on ideas to improve or replace rotary drilling technology dates back at least to the 1930`s. There was a significant amount of work in this area in the 1960`s and 1970`s; and there has been some continued effort through the 1980`s. Undoubtedly there are concepts for advanced drilling systems that have yet to be studied; however, it is almost certain that new efforts to initiate work on advanced drilling systems will build on an idea or a variation of an idea that has already been investigated. Therefore, a review of previous efforts coupled with a characterization of viable advanced drilling systems and the current state of technology as it applies to those systems provide the basis for the current study of advanced drilling.

Pierce, K.G. [Sandia National Labs., Albuquerque, NM (United States); Livesay, B.J. [Livesay Consultants, San Diego, CA (United States)

1995-03-01T23:59:59.000Z

168

Geopressured-geothermal drilling and testing plan: Magma Gulf/Technadril-Dept. of Energy MGT-DOE AMOCO Fee No. 1 well, Cameron Parish, Lousiana  

DOE Green Energy (OSTI)

The following topics are covered: generalized site activities, occupational health and safety, drilling operations, production testing, environmental assessment and monitoring plan, permits, program management, reporting, and schedule. (MHR)

Not Available

1980-07-01T23:59:59.000Z

169

Drill report  

SciTech Connect

North Slope drilling activity is described. As of November 14, 1984, four rigs were actively drilling in the Kuparuk River field with another two doing workovers. Only one rig was drilling in the Prudhoe Bay field, with another doing workovers and one on standby.

Not Available

1984-12-01T23:59:59.000Z

170

Improved Bottomhole Pressure Control for Underbalanced Drilling Operations.  

E-Print Network (OSTI)

??Maintaining underbalanced conditions from the beginning to the end of the drilling process is necessary to guarantee the success of jointed-pipe underbalanced drilling (UBD) operations… (more)

Perez-Tellez, Carlos

2003-01-01T23:59:59.000Z

171

Chemical damage due to drilling operations  

DOE Green Energy (OSTI)

The drilling of geothermal wells can result in near wellbore damage of both the injection wells and production wells if proper precautions are not taken. Very little specific information on the chemical causes for drilling damage that can directly be applied to the drilling of a geothermal well in a given situation is available in the literature. As part of the present work, the sparse literature references related to the chemical aspects of drilling damage are reviewed. The various sources of chemically induced drilling damages that are related to drilling operations are summarized. Various means of minimizing these chemical damages during and after the drilling of a geothermal well are suggested also.

Vetter, O.J.; Kandarpa, V.

1982-07-14T23:59:59.000Z

172

Advanced drilling systems  

DOE Green Energy (OSTI)

Drilling is ubiquitous in oil, gas, geothermal, minerals, water well, and mining industries. Drilling and well completion account for 25% to 50% of the cost of producing power from geothermal energy. Reduced drilling costs will reduce the cost of electricity produced from geothermal resources. Undoubtedly, there are concepts for advanced drilling systems that have yet to be studied. However, the breadth and depth of previous efforts in this area almost guarantee that any new efforts will at least initially build on an idea or a variation of an idea that has already been investigated. Therefore, a review of previous efforts, coupled with a characterization of viable advanced drilling systems and the current state of technology as it applies to those systems, provide the basis for this study.

Pierce, K.G.; Finger, J.T. [Sandia National Labs., Albuquerque, NM (United States); Livesay, B.J. [Livesay Consultants, San Diego, CA (United States)

1995-12-31T23:59:59.000Z

173

Computers aid drilling planning  

Science Conference Proceedings (OSTI)

This article reports that computers are rapidly becoming an indispensable tool for the drilling engineer both in town and at the wellsite. Two factors have contributed to the sudden increase in their use. The first is the need to cut drilling costs. Engineers have been forced to take a more critical look at plans and past experience. The second is the falling price (and increased portability) of hardware and software. Several major operators have demonstrated that careful planning of drilling operations based on local knowledge and data from offset wells can reduce the drilling learning curve substantially. Computers make it possible to retrieve and process offset well data rapidly and efficiently. They also offer powerful mathematical models which describe complicated aspects of drilling.

Burgess, T.

1986-11-01T23:59:59.000Z

174

Feasibility of Optimizing Recovery and Reserves from a Mature and Geological Complex Multiple Turbidite Offshore Calif. Reservoir through the Drilling and Completion of a Trilateral Horizontal Well, Class III  

SciTech Connect

The intent of this project was to increase production and extend the economic life of this mature field through the application of advanced reservoir characterization and drilling technology, demonstrating the efficacy of these technologies to other small operators of aging fields. Two study periods were proposed; the first to include data assimilation and reservoir characterization and the second to drill the demonstration well. The initial study period showed that a single tri-lateral well would not be economically efficient in redevelopment of Carpinteria's multiple deep water turbidite sand reservoirs, and the study was amended to include the drilling of a series of horizontal redrills from existing surplus well bores on Pacific Operators' Platform Hogan.

Pacific Operators Offshore, Inc.

2001-04-04T23:59:59.000Z

175

INVITATIONAL WELL-TESTING SYMPOSIUM PROCEEDINGS  

E-Print Network (OSTI)

to the well bore by drilling fluid, or by turbulent flowdrilled into. Although the drilling fluid normally providesthe hole filled with drilling fluid of appropriate density

Authors, Various

2011-01-01T23:59:59.000Z

176

Slant rigs offer big payoffs in shallow drilling  

Science Conference Proceedings (OSTI)

Slant hole drilling technology can result in considerable savings over conventionally drilled deviated holes because mud motors and deviation control with measurement while drilling tools are usually unnecessary. The benefits of using slant hole rigs for development drilling improve after the bit walk tendencies and the correct bottom hole assemblies have been determined for a particular area. This article discusses three recent drilling operations that successfully used slant drilling technology on land-based projects: drilling for heavy oil in Alberta, drilling for gas in Alberta, and drilling a river crossing for a gas pipeline in British Columbia. These examples demonstrate the flexibility of slant drilling technology.

Smith, J. (George E. Failing Co., Enid, OK (US)); Edwards, B. (Sierra Drilling Co., Calgary (CA))

1992-03-30T23:59:59.000Z

177

Advanced drilling systems study.  

Science Conference Proceedings (OSTI)

This report documents the results of a study of advanced drilling concepts conducted jointly for the Natural Gas Technology Branch and the Geothermal Division of the U.S. Department of Energy. A number of alternative rock cutting concepts and drilling systems are examined. The systems cover the range from current technology, through ongoing efforts in drilling research, to highly speculative concepts. Cutting mechanisms that induce stress mechanically, hydraulically, and thermally are included. All functions necessary to drill and case a well are considered. Capital and operating costs are estimated and performance requirements, based on comparisons of the costs for alternative systems to conventional drilling technology, are developed. A number of problems common to several alternatives and to current technology are identified and discussed.

Pierce, Kenneth G.; Livesay, Billy Joe; Finger, John Travis (Livesay Consultants, Encintas, CA)

1996-05-01T23:59:59.000Z

178

Managed pressure drilling techniques and tools  

E-Print Network (OSTI)

The economics of drilling offshore wells is important as we drill more wells in deeper water. Drilling-related problems, including stuck pipe, lost circulation, and excessive mud cost, show the need for better drilling technology. If we can solve these problems, the economics of drilling the wells will improve, thus enabling the industry to drill wells that were previously uneconomical. Managed pressure drilling (MPD) is a new technology that enables a driller to more precisely control annular pressures in the wellbore to prevent these drillingrelated problems. This paper traces the history of MPD, showing how different techniques can reduce drilling problems. MPD improves the economics of drilling wells by reducing drilling problems. Further economic studies are necessary to determine exactly how much cost savings MPD can provide in certain situation. Furter research is also necessary on the various MPD techniques to increase their effectiveness.

Martin, Matthew Daniel

2003-05-01T23:59:59.000Z

179

Slug Test Characterization Results for Multi-Test/Depth Intervals Conducted During the Drilling of CERCLA Operable Unit OU ZP-1 Wells 299-W10-33 and 299-W11-48  

SciTech Connect

Slug-test results obtained from single and multiple, stress-level slug tests conducted during drilling and borehole advancement provide detailed hydraulic conductivity information at two Hanford Site Operable Unit (OU) ZP-1 test well locations. The individual test/depth intervals were generally sited to provide hydraulic-property information within the upper ~10 m of the unconfined aquifer (i.e., Ringold Formation, Unit 5). These characterization results complement previous and ongoing drill-and-test characterization programs at surrounding 200-West and -East Area locations (see Figure S.1).

Newcomer, Darrell R.

2007-09-30T23:59:59.000Z

180

Pioneering work, economic factors provide insights into Russian drilling technology  

Science Conference Proceedings (OSTI)

In Russia and America, individual ingenuity and economic forces have produced a variety of drilling technologies, resulting in the development of disparate drilling systems. Endeavors by the US Department of Energy, the Gas Research Institute, Sandia Laboratories, and private industry have promoted exchanges of knowledge since the 1980s, and now that the barriers to technology transfer are being lifted, engineers from both countries have the opportunity to exchange knowledge and incorporate the best of both. The Russian drilling industry, like the Russian space program, has achieved tremendous success in implementing product and process innovations including the first directional (1940s), horizontal (1950s), and multilateral (1950s) wells. In addition, Russian engineers built the first turbodrills, electrodrills, novel drills (lasers, explosives), aluminum drill pipe, downhole electric submersible pumps, and mud hammers. This first part of a two-part series describes the achievements of Russian engineers in horizontal and multilateral drilling technologies followed by a discussion of the economic differences that led Russian and American drillers to develop dissimilar drilling systems. The second part describes a variety of innovative Russian technologies and provides details on the technical advantages they offer for the drilling process.

Gaddy, D.E.

1998-07-06T23:59:59.000Z

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


181

Horizontal drilling method and apparatus  

Science Conference Proceedings (OSTI)

This patent describes an apparatus for drilling a highly deviated well into a petroleum formation the apparatus comprising a drill pipe extending from a surface location to a down-hole drilling assembly through a curved wellbore. It comprises a down-hole motor attached to a bit at a first end, the down-hole motor having a bent housing; a bent sub in the down-hole drilling assembly located above the motor; and a pony collar located between the motor and the bent sub, the pony collar having sufficient mass to substantially hold the motor against a wellbore wall during drilling operations.

Rehm, W.A.; Trunk, T.D.; Baseflug, T.D.; Cromwell, S.L.; Hickman, G.A.; Nickel, R.D.; Lyons, M.S.

1991-08-27T23:59:59.000Z

182

Geothermal drill pipe corrosion test plan  

DOE Green Energy (OSTI)

Plans are presented for conducting a field test of drill pipe corrosion, comparing air and nitrogen as drilling fluids. This test will provide data for evaluating the potential of reducing geothermal well drilling costs by extending drill pipe life and reducing corrosion control costs. The 10-day test will take place during fall 1980 at the Baca Location in Sandoval County, New Mexico.

Caskey, B.C.; Copass, K.S.

1980-12-01T23:59:59.000Z

183

Selection of drilling fluids for minimizing coalbed damage. Final report, December 1981-February 1983. [Effect on permeability of coal bed near the well  

Science Conference Proceedings (OSTI)

The following conclusions have been drawn from work performed in this project: (1) both of the fluids tested (a KC1/CaCl2 brine and drilling mud filtrate) caused a loss in permeability when flowed through coal; (2) the damage mechanism for brine is undetermined, but the major part of the damage from mud filtrate appears to be related to particulate matter plugging flow channels; (3) a decrease in net confining pressure, caused by drilling overbalanced, can increase the risk of formation damage; and (4) an increase in net confining pressure, caused by drilling underbalanced, can also lead to permeability losses. The three potential formation damage mechanisms have been particulate plugging, clay swelling and/or migration, and relative permeability effects. Laboratory investigations have added a fourth - pressure effects.

Rose, R.E.; Foh, S.E.; Hayden, C.G.; Randolph, P.L.

1983-11-01T23:59:59.000Z

184

Development and Manufacture of Cost-Effective Composite Drill Pipe  

SciTech Connect

Advanced Composite Products and Technology, Inc. (ACPT) has developed composite drill pipe (CDP) that matches the structural and strength properties of steel drill pipe, but weighs less than 50 percent of its steel counterpart. Funding for the multiyear research and development of CDP was provided by the U.S. Department of Energy Office of Fossil Energy through the Natural Gas and Oil Projects Management Division at the National Energy Technology Laboratory (NETL). Composite materials made of carbon fibers and epoxy resin offer mechanical properties comparable to steel at less than half the weight. Composite drill pipe consists of a composite material tube with standard drill pipe steel box and pin connections. Unlike metal drill pipe, composite drill pipe can be easily designed, ordered, and produced to meet specific requirements for specific applications. Because it uses standard joint connectors, CDP can be used in lieu of any part of or for the entire steel drill pipe section. For low curvature extended reach, deep directional drilling, or ultra deep onshore or offshore drilling, the increased strength to weight ratio of CDP will increase the limits in all three drilling applications. Deceased weight will reduce hauling costs and increase the amount of drill pipe allowed on offshore platforms. In extreme extended reach areas and high-angle directional drilling, drilling limits are associated with both high angle (fatigue) and frictional effects resulting from the combination of high angle curvature and/or total weight. The radius of curvature for a hole as small as 40 feet (12.2 meters) or a build rate of 140 degrees per 100 feet is within the fatigue limits of specially designed CDP. Other properties that can be incorporated into the design and manufacture of composite drill pipe and make it attractive for specific applications are corrosion resistance, non-magnetic intervals, and abrasion resistance coatings. Since CDP has little or no electromagnetic force fields up to 74 kilohertz (KHz), a removable section of copper wire can be placed inside the composite pipe to short the tool joints electrically allowing electromagnetic signals inside the collar to induce and measure the same within the rock formation. By embedding a pair of wires in the composite section and using standard drill pipe box and pin ends equipped with a specially developed direct contact joint electrical interface, power can be supplied to measurement-while-drilling (MWD) and logging-while-drilling (LWD) bottom hole assemblies. Instantaneous high-speed data communications between near drill bit and the surface are obtainable utilizing this 'smart' drilling technology. The composite drill pipe developed by ACPT has been field tested successfully in several wells nationally and internationally. These tests were primarily for short radius and ultra short radius directional drilling. The CDP in most cases performed flawlessly with little or no appreciable wear. ACPT is currently marketing a complete line of composite drill collars, subs, isolators, casing, and drill pipe to meet the drilling industry's needs and tailored to replace metal for specific application requirements.

James C. Leslie

2008-12-31T23:59:59.000Z

185

Feasibility of optimizing recovery and reserves from a mature and geological complex multiple turbidite offshore California reservoir through the drilling and completion of a trilateral horizontal well. Annual report, September 1, 1995--December 31, 1996  

Science Conference Proceedings (OSTI)

The main objective of this project is to devise an effective re-development strategy to combat producibility problems related to the Repetto turbidite sequences of the Carpinteria Field. The lack of adequate reservoir characterization, high-water cut production, and scaling problems have in the past contributed to the field`s low productivity. To improve productivity and enhance recoverable reserves, the following specific goals were proposed: develop an integrated database of all existing data from work done by the former ownership group; expand reservoir drainage and reduce sand problems through horizontal well drilling and completion; operate and validate reservoir`s conceptual model by incorporating new data from the proposed trilateral well; and transfer methodologies employed in geologic modeling and drilling multilateral wells to other operators with similar reservoirs. A computer based data retrieval system was developed to convert hard copy documents containing production, well completion and well log data into easily accessible on-line format. To ascertain the geological framework of the reservoir, a thorough geological modeling and subsurface mapping of the Carpinteria field was developed. The model is now used to examine the continuity of the sands, characteristics of the sub-zones, nature of water influx and transition intervals in individual major sands. The geological model was then supplemented with a reservoir engineering study of spatial distribution of voidage in individual layers using the production statistics and pressure surveys. Efforts are continuing in selection of optimal location for drilling and completion of probing wells to obtain new data about reservoir pressure, in-situ saturation and merits of drilling a series of horizontal wells.

Coombs, S.; Edwards, E.; Fleckenstein, W.; Ershaghi, I.; Sobbi, F.; Coombs, S.

1998-07-01T23:59:59.000Z

186

Continental drilling  

DOE Green Energy (OSTI)

The Workshop on Continental Drilling was convened to prepare a report for submission to the US Geodynamics Committee with respect to the contribution that could be made by land drilling to resolve major problems of geodynamics and consider the mechanisms by which the responsibility for scientific planning, establishment of priorities, administration, and budgeting for a land-drilling program within the framework of the aims of the Geodynamics Project would best be established. A new and extensive program to study the continental crust is outlined in this report. The Workshop focused on the following topics: processes in the continental crust (mechanism of faulting and earthquakes, hydrothermal systems and active magma chambers); state and structure of the continental crust (heat flow and thermal structure of the crust; state of ambient stress in the North American plate; extent, regional structure, and evolution of crystalline continental crust); short hole investigations; present state and needs of drilling technology; drill hole experimentation and instrumentation; suggestions for organization and operation of drilling project; and suggested level of effort and funding. Four recommendations are set down. 8 figures, 5 tables. (RWR)

Shoemaker, E.M. (ed.)

1975-01-01T23:59:59.000Z

187

Reducing the risk, complexity and cost of coiled tubing drilling  

Science Conference Proceedings (OSTI)

Drilling vertical well extensions with coiled tubing, particularly in the underbalanced state, exploits the inherent strengths of coiled tubing including: The ability to enter slim holes against a live well head; The use of small equipment that is fast to rig up and down; and The ability to trip quickly and maintain a steady pressure downhole with continuous circulation. Coiled tubing has successfully been used to deepen hundreds of wells, yet this application has only received sporadic attention. There are some very important technical considerations when drilling non-directionally with coiled tubing that must be addressed to ensure a commercially successful job. A recent vertical drilling job carried out in Western Australia illustrates the critical engineering aspects of an underbalanced, non-directional, coiled tubing drilling job. This job was completed for Arc Energy in April 1999 and produced a well that stabilized at 1.1 MMcfd, where three other wells drilled conventionally into these zones had shown only trace amounts of hydrocarbon.

Portman, L. [BJ Services, Houston, TX (United States)

1999-07-01T23:59:59.000Z

188

Newberry Exploratory Slimhole: Drilling And Testing  

E-Print Network (OSTI)

During July-November, 1995, Sandia National Laboratories, in cooperation with CE Exploration, drilled a 5360' exploratory slimhole (3.895" diameter) in the Newberry Known Geothermal Resource Area (KGRA) near Bend, Oregon. This well was part of Sandia's program to evaluate slimholes as a geothermal exploration tool. During and after drilling we performed numerous temperature logs, and at the completion of drilling attempted to perform injection tests. In addition to these measurements, the well's data set includes: over 4000' of continuous core (with detailed log); daily drilling reports from Sandia and from drilling contractor personnel; daily drilling fluid record; and comparative data from other wells drilled in the Newberry KGRA. This report contains: (1) a narrative account of the drilling and testing, (2) a description of equipment used, (3) a brief geologic description of the formation drilled, (4) a summary and preliminary interpretation of the data, and (5) recommendations for ...

John Finger Ronald; Ronald D. Jacobson; Charles E. Hickox

1997-01-01T23:59:59.000Z

189

Final report on the design and development of a Rolling Float Meter for drilling-fluid outflow measurement  

DOE Green Energy (OSTI)

Lost circulation, which is the loss of well drilling fluids to the formation while drilling, is a common problem encountered while drilling geothermal wells. The rapid detection of the loss of well drilling fluids is critical to the successful and cost-effective treatment of the wellbore to stop or minimize lost circulation. Sandia National Laboratories has developed an instrument to accurately measure the outflow rate of drilling fluids while drilling. This instrument, the Rolling Float Meter, has been under development at Sandia since 1991 and is now available for utilization by interested industry users. This report documents recent Rolling Float Meter design upgrades resulting from field testing and industry input, the effects of ongoing testing and evaluation both in the laboratory and in the field, and the final design package that is available to transfer this technology to industry users.

Staller, G.E.; Westmoreland, J.J.; Whitlow, G.L.; Wright, E.K.; Glowka, D.A.

1998-03-01T23:59:59.000Z

190

Drilling and general petroleum engineering  

Science Conference Proceedings (OSTI)

Forty-nine papers are included in the Drilling and General Petroleum Engineering Volume of the SPE Annual Conference and Exhibition proceedings. The conference was held in New Orleans, Louisiana, September 25-28, 1994. The papers cover such topics as: extended reach well drilling, development of marginal satellite fields, slim hole drilling, pressure loss predictions, models for cuttings transport, ester-based drilling fluid systems, borehole stability, cementing, operations, bit failures, roller core bits, well tracking techniques, nitrogen drilling systems, plug failures, drill bit and drillstring dynamics, slim hole vibrations, reserve estimates, enhanced recovery methods, waste disposal, and engineering salary trends. A separate abstract and indexing was prepared for each paper for inclusion in the Energy Science and Technology Database.

Not Available

1994-01-01T23:59:59.000Z

191

Handbook of Best Practices for Geothermal Drilling | Open Energy  

Open Energy Info (EERE)

Handbook of Best Practices for Geothermal Drilling Handbook of Best Practices for Geothermal Drilling Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Handbook of Best Practices for Geothermal Drilling Abstract This Handbook is a description of the complex process that comprises drilling a geothermal well. The focus of the detailed Chapters covering various aspects of the process (casing design, cementing, logging and instrumentation, etc) is on techniques and hardware that have proven successful in geothermal reservoirs around the world. The Handbook will eventually be linked to the Geothermal Implementing Agreement (GIA) web site, with the hope and expectation that it can be continually updated as new methods are demonstrated or proven. Authors John Finger and Doug Blankenship

192

Field application of lightweight, hollow-glass-sphere drilling fluid  

Science Conference Proceedings (OSTI)

A new class of underbalanced drilling fluids being developed under US Dept. of Energy (US DOE) sponsorship was recently successfully field tested. The fluid uses hollow glass spheres (HGS`s) to decrease the fluid density to less than that of the base mud while maintaining incompressibility. Concentrations of up to 20 vol% were used to decrease the fluid density to 0.8 lbm/gal less than normally used in the field. Potential benefits of using these fluids include higher penetration rates, decreased formation damage, and lost-circulation mitigation. When used in place of aerated fluid, they can eliminate compressor usage and allow the use of mud-pulse measurement-while-drilling tools. These and other recent advances in technology have spurred interest in underbalanced drilling to the highest level in 30 years. Industry-wide surveys indicate that more than 12% of wells drilled in the US in 1997 will intentionally use underbalanced techniques.

NONE

1997-11-01T23:59:59.000Z

193

Recent North Sea successes build confidence  

Science Conference Proceedings (OSTI)

The recent application of underbalanced drilling (UBD) techniques in Shell`s southern North Sea gas fields has provided evidence of the benefits these techniques can deliver compared to a conventional program. In addition, the success of these operations has demonstrated that with the right approach to system design and regulatory compliance within a legislative environment, the techniques developed for land operations can be adapted to mitigate all offshore safety, environmental and operational concerns. Impeccable planning and a team effort resulted in two wells successfully drilled using underbalanced techniques. With confidence in the safety and efficacy of the system, future projects will concentrate on improving efficiency and well productivity.

Nessa, D.O.; Munro, C. [Smedvig Offshore, Aberdeen (United Kingdom)

1998-09-01T23:59:59.000Z

194

NNSA Small Business Week Day 2: United Drilling, Inc. | National...  

National Nuclear Security Administration (NNSA)

business based in Roswell, N.M. United Drilling drills oil, gas, water, geothermal, and environmental wells throughout the southwestern U.S. The small business has...

195

High speed drilling research advances  

Science Conference Proceedings (OSTI)

This article reports that the Amoco Production Company's Tulsa Research Center is developing a High Speed Drilling System (HSDS) to improve drilling economics for both exploration and development wells. The system is targeted for areas where historically the drilling rate is less than 25 ft/hr over a large section of hole. Designed as a five-year development program, work began on the system in late 1984. A major service company is participating in the project. The objective of the HSDS project is to improve drilling efficiency by developing improvements in the basic mechanical drilling system. The HSDS approach to improved drilling economics is via the traditional routes of increasing penetration rate (ROP) and bit life, increasing hole stability and reducing trouble time.

Warren, T.M.; Canson, B.E.

1987-03-01T23:59:59.000Z

196

Advanced Seismic While Drilling System  

SciTech Connect

A breakthrough has been discovered for controlling seismic sources to generate selectable low frequencies. Conventional seismic sources, including sparkers, rotary mechanical, hydraulic, air guns, and explosives, by their very nature produce high-frequencies. This is counter to the need for long signal transmission through rock. The patent pending SeismicPULSER{trademark} methodology has been developed for controlling otherwise high-frequency seismic sources to generate selectable low-frequency peak spectra applicable to many seismic applications. Specifically, we have demonstrated the application of a low-frequency sparker source which can be incorporated into a drill bit for Drill Bit Seismic While Drilling (SWD). To create the methodology of a controllable low-frequency sparker seismic source, it was necessary to learn how to maximize sparker efficiencies to couple to, and transmit through, rock with the study of sparker designs and mechanisms for (a) coupling the sparker-generated gas bubble expansion and contraction to the rock, (b) the effects of fluid properties and dynamics, (c) linear and non-linear acoustics, and (d) imparted force directionality. After extensive seismic modeling, the design of high-efficiency sparkers, laboratory high frequency sparker testing, and field tests were performed at the University of Texas Devine seismic test site. The conclusion of the field test was that extremely high power levels would be required to have the range required for deep, 15,000+ ft, high-temperature, high-pressure (HTHP) wells. Thereafter, more modeling and laboratory testing led to the discovery of a method to control a sparker that could generate low frequencies required for deep wells. The low frequency sparker was successfully tested at the Department of Energy Rocky Mountain Oilfield Test Center (DOE RMOTC) field test site in Casper, Wyoming. An 8-in diameter by 26-ft long SeismicPULSER{trademark} drill string tool was designed and manufactured by TII. An APS Turbine Alternator powered the SeismicPULSER{trademark} to produce two Hz frequency peak signals repeated every 20 seconds. Since the ION Geophysical, Inc. (ION) seismic survey surface recording system was designed to detect a minimum downhole signal of three Hz, successful performance was confirmed with a 5.3 Hz recording with the pumps running. The two Hz signal generated by the sparker was modulated with the 3.3 Hz signal produced by the mud pumps to create an intense 5.3 Hz peak frequency signal. The low frequency sparker source is ultimately capable of generating selectable peak frequencies of 1 to 40 Hz with high-frequency spectra content to 10 kHz. The lower frequencies and, perhaps, low-frequency sweeps, are needed to achieve sufficient range and resolution for realtime imaging in deep (15,000 ft+), high-temperature (150 C) wells for (a) geosteering, (b) accurate seismic hole depth, (c) accurate pore pressure determinations ahead of the bit, (d) near wellbore diagnostics with a downhole receiver and wired drill pipe, and (e) reservoir model verification. Furthermore, the pressure of the sparker bubble will disintegrate rock resulting in an increased overall rates of penetration. Other applications for the SeismicPULSER{trademark} technology are to deploy a low-frequency source for greater range on a wireline for Reverse Vertical Seismic Profiling (RVSP) and Cross-Well Tomography. Commercialization of the technology is being undertaken by first contacting stakeholders to define the value proposition for rig site services utilizing SeismicPULSER{trademark} technologies. Stakeholders include national oil companies, independent oil companies, independents, service companies, and commercial investors. Service companies will introduce a new Drill Bit SWD service for deep HTHP wells. Collaboration will be encouraged between stakeholders in the form of joint industry projects to develop prototype tools and initial field trials. No barriers have been identified for developing, utilizing, and exploiting the low-frequency SeismicPULSER{trademark} source in a

Robert Radtke; John Fontenot; David Glowka; Robert Stokes; Jeffery Sutherland; Ron Evans; Jim Musser

2008-06-30T23:59:59.000Z

197

Drilling technology/GDO  

DOE Green Energy (OSTI)

The Geothermal Technology Division of the US Department of Energy is sponsoring two programs related to drilling technology. The first is aimed at development of technology that will lead to reduced costs of drilling, completion, and logging of geothermal wells. This program has the official title ''Hard Rock Penetration Mechanics.'' The second program is intended to share with private industry the cost of development of technology that will result in solutions to the near term geothermal well problems. This program is referred to as the ''Geothermal Drilling Organization''. The Hard Rock Penetration Mechanics Program was funded at $2.65M in FY85 and the GDO was funded at $1.0M in FY85. This paper details the past year's activities and accomplishments and projects the plans for FY86 for these two programs.

Kelsey, J.R.

1985-01-01T23:59:59.000Z

198

Near-Term Developments in Geothermal Drilling  

DOE Green Energy (OSTI)

The DOE Hard Rock Penetration program is developing technology to reduce the costs of drilling geothermal wells. Current projects include: R & D in lost circulation control, high temperature instrumentation, underground imaging with a borehole radar insulated drill pipe development for high temperature formations, and new technology for data transmission through drill pipe that can potentially greatly improve data rates for measurement while drilling systems. In addition to this work, projects of the Geothermal Drilling Organization are managed. During 1988, GDO projects include developments in five areas: high temperature acoustic televiewer, pneumatic turbine, urethane foam for lost circulation control, geothermal drill pipe protectors, an improved rotary head seals.

Dunn, James C.

1989-03-21T23:59:59.000Z

199

Slug Test Characterization Results for Multi-Test/Depth Intervals Conducted During the Drilling of CERCLA Operable Unit OU ZP-1 Wells 299-W11-43, 299-W15-50, and 299-W18-16  

SciTech Connect

The following report presents test descriptions and analysis results for multiple, stress level slug tests that were performed at selected test/depth intervals within three Operable Unit (OU) ZP-1 wells: 299-W11-43 (C4694/Well H), 299-W15-50 (C4302/Well E), and 299-W18-16 (C4303/Well D). These wells are located within south-central region of the Hanford Site 200-West Area (Figure 1.1). The test intervals were characterized as the individual boreholes were advanced to their final drill depths. The primary objective of the hydrologic tests was to provide information pertaining to the areal variability and vertical distribution of hydraulic conductivity with depth at these locations within the OU ZP-1 area. This type of characterization information is important for predicting/simulating contaminant migration (i.e., numerical flow/transport modeling) and designing proper monitor well strategies for OU and Waste Management Area locations.

Spane, Frank A.; Newcomer, Darrell R.

2010-06-21T23:59:59.000Z

200

Critique of Drilling Research  

SciTech Connect

For a number of years the Department of Energy has been funding research to reduce the cost of drilling geothermal wells. Generally that research has been effective and helped to make geothermal energy economically attractive to developers. With the increased competition for the electrical market, geothermal energy needs every advantage it can acquire to allow it to continue as a viable force in the marketplace. In drilling related research, there is essentially continuous dialogue between industry and the national laboratories. Therefore, the projects presented in the Program Review are focused on subjects that were previously recommended or approved by industry.

Hamblin, Jerry

1992-03-24T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" from the National Library of EnergyBeta (NLEBeta).
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201

Parcperdue geopressure-geothermal project. Study a geopressured reservoir by drilling and producing a well in a limited geopressured water sand. Final technical report, September 28, 1979-December 31, 1983  

DOE Green Energy (OSTI)

The behavior of geopressured reservoirs was investigated by drilling and producing a well in small, well defined, geopressured reservoir; and performing detailed pressure transient analysis together with geological, geophysical, chemical, and physical studies. The Dow-DOE L. R. Sweezy No. 1 well was drilled to a depth of 13,600 feet in Parcperdue field, just south of Lafayette, Louisiana, and began production in April, 1982. The production zone was a poorly consolidated sandstone which constantly produced sand into the well stream, causing damage to equipment and causing other problems. The amount of sand production was kept manageable by limiting the flow rate to below 10,000 barrels per day. Reservoir properties of size, thickness, depth, temperature, pressure, salinity, porosity, and permeability were close to predicted values. The reservoir brine was undersaturated with respect to gas, containing approximately 20 standard cubic feet of gas per barrel of brine. Shale dewatering either did not occur or was insignificant as a drive mechanism. Production terminated when the gravel-pack completion failed and the production well totally sanded in, February, 1983. Total production up to the sanding incident was 1.94 million barrels brine and 31.5 million standard cubic feet gas.

Hamilton, J.R.; Stanley, J.G. (eds.) [eds.

1984-01-15T23:59:59.000Z

202

Underbalanced drilling solves difficult drilling problems and enhances production  

Science Conference Proceedings (OSTI)

An alternate approach to drilling, completing and working over new and existing wells has dramatically improved the efficiency of these operations. This method is called underbalanced drilling (UBD). Improvements in both the equipment and technique during the past 5 years have made this process economical and necessary to solve many difficult drilling problems. Additionally, by reducing drilling or workover damage, dramatic improvements in oil and gas production rates and ultimate reserves are realized, resulting in extra profits for today`s operators. This article will detail the advantages of UBD and give specific examples of its applications, A series of related articles will follow, including: new UBD equipment, land and off-shore case histories, coiled tubing drilling, underbalanced workovers, software technology and subsea applications to examine the reality and future of this technology.

Cuthbertson, R.L.; Vozniak, J.

1997-02-01T23:59:59.000Z

203

RMOTC - Testing - Openhole Logging Well  

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

Openhole Logging Well RMOTC Openhole Logging Well RMOTC has drilled a vertical well that is specifically designated for openhole logging tests. It was drilled to 5,450 feet and has...

204

Innovative techniques cut costs in wetlands drilling  

Science Conference Proceedings (OSTI)

This paper reports on an approach to drilling oil and gas wells in sensitive wetlands areas contributed to a savings of over $1.2 million on a three-well, $3 million drilling project in south Louisiana. ARCO Oil and Gas Co. drilled a three-well project in the Bayou Sale field with a truck-mounted workover rig and a modified solids-control system. This smaller equipment eliminated the need to build a large location in the marsh. Traditional drilling techniques require a large drillsite to accommodate all the equipment of a modern drilling complex. However, recently imposed environmental regulations substantially limit, and in some cases prohibit, the use of these conventional techniques for drilling wells in wetlands areas. Based on the potentially huge economic and operational impact on the drilling industry because of these stricter regulations, alternatives to these traditional practices are essential.

Navarro, A.R. (ARCO Oil and Gas Co., Lafayette, LA (US))

1991-10-14T23:59:59.000Z

205

Drainhole drilling projects under way  

Science Conference Proceedings (OSTI)

This paper reports that many operators are taking advantage of continued developments in drainhole drilling technology to increase productivity in certain fields. Previously untapped prospects are under renewed scrutiny to determine if drainhole and horizontal drilling can make them more attractive. Producing properties are being reevaluated as well. Drainhole drilling typically involves reentering an existing well and cutting through the casing to drill a relatively short length of horizontal wellbore. Although separating drainhole and horizonal or extended-reach drilling is somewhat of a gray area, one difference is that a drainhole well turns to the horizontal much quicker. The radius of turn to 90/sup 0/ can be as little as 30 to 50 ft. Additionally, the length of horizontal kick in a drainhole well is typically in the 300- to 500-ft range compared to 1000 ft or more in extended-reach drilling. A final separating characteristic is that drainhole drilling can be associated with several horizontal lengths of wellbore coming off a single vertical hole.

Burton, B.

1987-07-01T23:59:59.000Z

206

Foam drilling simulator  

E-Print Network (OSTI)

Although the use of compressible drilling fluids is experiencing growth, the flow behavior and stability properties of drilling foams are more complicated than those of conventional fluids. In contrast with conventional mud, the physical properties of foam change along the wellbore. Foam physical and thermal properties are strongly affected by pressure and temperature. Many problems associated with field applications still exist, and a precise characterization of the rheological properties of these complex systems needs to be performed. The accurate determination of the foam properties in circulating wells helps to achieve better estimation of foam rheology and pressure. A computer code is developed to process the data and closely simulate the pressure during drilling a well. The model also offers a detailed discussion of many aspects of foam drilling operations and enables the user to generate many comparative graphs and tables. The effects of some important parameters such as: back-pressure, rate of penetration, cuttings concentration, cuttings size, and formation water influx on pressure, injection rate, and velocity are presented in tabular and graphical form. A discretized heat transfer model is formulated with an energy balance on a control volume in the flowing fluid. The finite difference model (FDM) is used to write the governing heat transfer equations in discretized form. A detailed discussion on the determination of heat transfer coefficients and the solution approach is presented. Additional research is required to analyze the foam heat transfer coefficient and thermal conductivity.

Paknejad, Amir Saman

2005-12-01T23:59:59.000Z

207

High-temperature directional drilling turbodrill  

DOE Green Energy (OSTI)

The development of a high-temperature turbodrill for directional drilling of geothermal wells in hard formations is summarized. The turbodrill may be used for straight-hole drilling but was especially designed for directional drilling. The turbodrill was tested on a dynamometer stand, evaluated in laboratory drilling into ambient temperature granite blocks, and used in the field to directionally drill a 12-1/4-in.-diam geothermal well in hot 200/sup 0/C (400/sup 0/F) granite at depths to 10,5000 ft.

Neudecker, J.W.; Rowley, J.C.

1982-02-01T23:59:59.000Z

208

Definition: Drilling Techniques | Open Energy Information  

Open Energy Info (EERE)

Techniques Techniques Jump to: navigation, search Dictionary.png Drilling Techniques There are a variety of drilling techniques which can be used to sink a borehole into the ground. Each has its advantages and disadvantages, in terms of the depth to which it can drill, the type of sample returned, the costs involved and penetration rates achieved. There are two basic types of drills: drills which produce rock chips, and drills which produce core samples.[1] View on Wikipedia Wikipedia Definition Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring.

209

Recovery Efficiency Test Project: Phase 1, Activity report. Volume 1: Site selection, drill plan preparation, drilling, logging, and coring operations  

SciTech Connect

The recovery Efficiency Test well project addressed a number of technical issues. The primary objective was to determine the increased efficiency gas recovery of a long horizontal wellbore over that of a vertical wellbore and, more specifically, what improvements can be expected from inducing multiple hydraulic fractures from such a wellbore. BDM corporation located, planned, and drilled a long radius turn horizontal well in the Devonian shale Lower Huron section in Wayne County, West Virginia, demonstrating that state-of-the-art technology is capable of drilling such wells. BDM successfully tested drilling, coring, and logging in a horizontal well using air as the circulating medium; conducted reservoir modeling studies to protect flow rates and reserves in advance of drilling operations; observed two phase flow conditions in the wellbore not observed previously; cored a fracture zone which produced gas; observed that fractures in the core and the wellbore were not systematically spaced (varied from 5 to 68 feet in different parts of the wellbore); observed that highest gas show rates reported by the mud logger corresponded to zone with lowest fracture spacing (five feet) or high fracture frequency. Four and one-half inch casting was successfully installed in the borehole and was equipped to isolate the horizontal section into eight (8) zones for future testing and stimulation operations. 6 refs., 48 figs., 10 tabs.

Overbey, W.K. Jr.; Carden, R.S.; Kirr, J.N.

1987-04-01T23:59:59.000Z

210

Diffusion bonding of Stratapax for drill bits  

DOE Green Energy (OSTI)

A process has been developed for the diffusion bonding of General Electric's Stratapax drill blanks to support studs for cutter assemblies in drill bits. The diffusion bonding process is described and bond strength test data are provided for a variety of materials. The extensive process details, provided in the Appendices, should be sufficient to enable others to successfully build diffusion-bonded drill bit cutter assemblies.

Middleton, J.N.; Finger, J.T.

1983-01-01T23:59:59.000Z

211

Infill drilling enhances waterflood recovery  

Science Conference Proceedings (OSTI)

Two sets of west Texas carbonate reservoir and waterflood data were studied to evaluate the impact of infill drilling on waterflood recovery. Results show that infill drilling enhanced the current and projected waterflood recovery from most of the reservoirs. The estimated ultimate and incremental infill-drilling waterflood recovery was correlated with well spacing and other reservoir and process parameters. Results of the correlation indicate that reducing well spacing from 40 to 20 acres (16 to 8 ha) per well would increase the oil recovery by 8 to 9% of the original oil in place (OOIP). Because of the limited data base and regressional nature of the correlation models, the infill-drilling recovery estimate must be used with caution.

Wu, C.H.; Jardon, M. (Texas A and M Univ., College Station, TX (USA)); Laughlin, B.A. (Union Pacific Research Co. (US))

1989-10-01T23:59:59.000Z

212

Drill string enclosure  

DOE Patents (OSTI)

The drill string enclosure consists of six component parts, including; a top bracket, an upper acrylic cylinder, an acrylic drill casing guide, a lower acrylic cylinder, a bottom bracket, and three flexible ducts. The upper acrylic cylinder is optional based upon the drill string length. The drill string enclosure allows for an efficient drill and sight operation at a hazardous waste site.

Jorgensen, Douglas K. (Idaho Falls, ID); Kuhns, Douglass J. (Idaho Falls, ID); Wiersholm, Otto (Idaho Falls, ID); Miller, Timothy A. (Idaho Falls, ID)

1993-01-01T23:59:59.000Z

213

Drill string enclosure  

DOE Patents (OSTI)

The drill string enclosure consists of six component parts, including; a top bracket, an upper acrylic cylinder, an acrylic drill casing guide, a lower acrylic cylinder, a bottom bracket, and three flexible ducts. The upper acrylic cylinder is optional based upon the drill string length. The drill string enclosure allows for an efficient drill and sight operation at a hazardous waste site.

Jorgensen, D.K.; Kuhns, D.J.; Wiersholm, O.; Miller, T.A.

1993-03-02T23:59:59.000Z

214

Underbalanced drilling guidelines improve safety, efficiency  

Science Conference Proceedings (OSTI)

In underbalanced drilling, the primary means of well control, the hydrostatic head of the drilling fluid, is lost either unavoidably because of hole problems (such as abnormally high pressure or lost circulation) or intentionally because of economics or to prevent formation damage. Because of complications with underbalanced drilling, however, several rigs have been destroyed by fire. Operational guidelines are being developed in close cooperation with industry. The final guidelines will be consistent with the existing standards of well control practices in Alberta, yet applicable for underbalanced drilling operations world-wide. Until formal guidelines are completed in Alberta, operators interested in underbalanced drilling should work closely with the Energy Resources Conservation Board in preparing site-specific programs. Although underbalanced drilling is often associated with horizontal wells, the majority of underbalanced drilling operations in Alberta are conducted on vertical wells. The paper describes underbalanced drilling, blowout prevention, surface BOP equipment (stripper, annular pack off, rotating head, rotating BOP, coiled tubing), subsurface BOP, drilling fluids, nitrified drilling fluids, surface equipment, well-site supervision, well control equipment, and the surface handling of fluids.

Eresman, D. (Energy Resources Conservation Board, Calgary, Alberta (Canada))

1994-02-28T23:59:59.000Z

215

Driltac (Drilling Time and Cost Evaluation)  

Science Conference Proceedings (OSTI)

The users manual for the drill tech model for estimating the costs of geothermal wells. The report indicates lots of technical and cost detail. [DJE-2005

None

1986-08-01T23:59:59.000Z

216

Specific energy for pulsed laser rock drilling  

Science Conference Proceedings (OSTI)

Application of advanced high power laser technology to oil and gas well drilling has been attracting significant research interests recently among research institutes

Z. Xu; C. B. Reed; G. Konercki; R. A. Parker; B. C. Gahan; S. Batarseh; R. M. Graves; H. Figueroa; N. Skinner

2003-01-01T23:59:59.000Z

217

Geopressured-Geothermal Drilling and Testing Plan, Volume II, Testing Plan; Dow Chemical Co. - Dept. of Energy Dow-DOE Sweezy No. 1 Well, Vermilion Parish, Louisiana  

DOE Green Energy (OSTI)

The Dow/D.O.E. L. R. Sweezy No. 1 geopressured geothermal production well was completed in August of 1981. The well was perforated and gravel packed in approximately 50 feet of sand from 13,344 feet to 13,395 feet. Permeabilities of 6 to 914 millidarcies were measured with porosity of 25 to 36%. Static surface pressure after well clean-up was 5000 psi. At 1000 B/D flow rate the drawdown was 50 psi. The water produced in clean-up contained 100,000 ppm TDS. This report details the plan for testing this well with the goal of obtaining sufficient data to define the total production curve of the small, 939 acre, reservoir. A production time of six to nine months is anticipated. The salt water disposal well is expected to be completed and surface equipment installed such that production testing will begin by April 1, 1982. The program should be finished and reports written by February 28, 1983. The brine will be produced from the No.1 well, passed through a separator where the gas is removed, then reinjected into the No.2 (SWD) well under separator pressure. Flow rates of up to 25,000 B/D are expected. The tests are divided into a two-week short-term test and six to nine-month long-term tests with periodic downhole measurement of drawdown and buildup rates. Data obtained in the testing will be relayed by phoneline computer hookup to Otis Engineering in Dallas, Texas, where the reservoir calculations and modeling will be done. At the point where sufficient data has been obtained to reach the objectives of the program, production will be ended, the wells plugged and abandoned, and a final report will be issued.

None

1982-02-01T23:59:59.000Z

218

Coiled tubing drilling (CTD) moves to commercial viability  

Science Conference Proceedings (OSTI)

Shell Western E and P, Inc. (SWEPI) California Drilling Operations was interested in coiled tubing (CT) for drilling slimhole steam injectors. A four-well pilot project at South Belridge field, Kern County, Calif., was targeted for immediate CT use. Well programs included completion, a goal not previously attempted on wells drilled from surface with CT. This paper reviews the primary project focus which was to develop slimhole steam injectors and improve injection profiles in lower Tulare formation E and G sands. Feasibility of drilling wells with CT and having CT crews run and cement completion tubulars in place was an issue to be determined. Conventional tubing installation is usually outside the scope of CT operations, so it was not known if this would be technically or economically feasible. Another goal was to refine personnel expertise to further develop CTD services as a successful business line. Other items targeted for investigation were: deviation control; lost circulation solutions; WOB optimization to obtain maximum ROP; potential steam blowout intervals; and high temperature. Finally, economic feasibility of using CTD as a rotary rig alternative for specific applications like slimhole wells on sites where surface location is limited was to be determined.

Romagno, R. (Shell Western E and P, Inc., Bakersfield, CA (United States)); Walker, R. (Schlumberger Dowell, Bakersfield, CA (United States))

1994-12-01T23:59:59.000Z

219

Establishing nuclear facility drill programs  

SciTech Connect

The purpose of DOE Handbook, Establishing Nuclear Facility Drill Programs, is to provide DOE contractor organizations with guidance for development or modification of drill programs that both train on and evaluate facility training and procedures dealing with a variety of abnormal and emergency operating situations likely to occur at a facility. The handbook focuses on conducting drills as part of a training and qualification program (typically within a single facility), and is not intended to included responses of personnel beyond the site boundary, e.g. Local or State Emergency Management, Law Enforcement, etc. Each facility is expected to develop its own facility specific scenarios, and should not limit them to equipment failures but should include personnel injuries and other likely events. A well-developed and consistently administered drill program can effectively provide training and evaluation of facility operating personnel in controlling abnormal and emergency operating situations. To ensure the drills are meeting their intended purpose they should have evaluation criteria for evaluating the knowledge and skills of the facility operating personnel. Training and evaluation of staff skills and knowledge such as component and system interrelationship, reasoning and judgment, team interactions, and communications can be accomplished with drills. The appendices to this Handbook contain both models and additional guidance for establishing drill programs at the Department`s nuclear facilities.

NONE

1996-03-01T23:59:59.000Z

220

Petroleum well costs.  

E-Print Network (OSTI)

??This is the first academic study of well costs and drilling times for Australia?s petroleum producing basins, both onshore and offshore. I analyse a substantial… (more)

Leamon, Gregory Robert

2006-01-01T23:59:59.000Z

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


221

Impedance matched joined drill pipe for improved acoustic transmission  

DOE Patents (OSTI)

An impedance matched jointed drill pipe for improved acoustic transmission. A passive means and method that maximizes the amplitude and minimize the temporal dispersion of acoustic signals that are sent through a drill string, for use in a measurement while drilling telemetry system. The improvement in signal transmission is accomplished by replacing the standard joints in a drill string with joints constructed of a material that is impedance matched acoustically to the end of the drill pipe to which it is connected. Provides improvement in the measurement while drilling technique which can be utilized for well logging, directional drilling, and drilling dynamics, as well as gamma-ray spectroscopy while drilling post shot boreholes, such as utilized in drilling post shot boreholes.

Moss, William C. (San Mateo, CA)

2000-01-01T23:59:59.000Z

222

Optimizing drilling performance using a selected drilling fluid  

DOE Patents (OSTI)

To improve drilling performance, a drilling fluid is selected based on one or more criteria and to have at least one target characteristic. Drilling equipment is used to drill a wellbore, and the selected drilling fluid is provided into the wellbore during drilling with the drilling equipment. The at least one target characteristic of the drilling fluid includes an ability of the drilling fluid to penetrate into formation cuttings during drilling to weaken the formation cuttings.

Judzis, Arnis (Salt Lake City, UT); Black, Alan D. (Coral Springs, FL); Green, Sidney J. (Salt Lake City, UT); Robertson, Homer A. (West Jordan, UT); Bland, Ronald G. (Houston, TX); Curry, David Alexander (The Woodlands, TX); Ledgerwood, III, Leroy W. (Cypress, TX)

2011-04-19T23:59:59.000Z

223

Seal/lubricant systems for geothermal drilling equipment  

DOE Green Energy (OSTI)

The development and testing of seals and lubricants for journal-type roller-cone rock bits for drilling into geothermal reservoirs at temperatures over 260/sup 0/C (500/sup 0/F) are described. The conditions experienced by seals and lubricants subjected to geothermal drilling are reviewed along with the basic design requirements for roller-cone bit seals and journal bearing lubricants. Two unique test facilities are described: a seal test machine which simulates pressures, temperatures, and mechanical eccentricities, and a lubricant tester capable of evaluating load-bearing ability at temperature and pressure. Three candidate elastomeric compounds demonstrated 288/sup 0/C (550/sup 0/F) capability and several others demonstrated 260/sup 0/C (500/sup 0/F) or greater capability. Successful elastomeric seal candidates were proprietary compounds based on EPDM, Kalrez, and/or Viton polymers. Three mechanical seals for reservoir temperatures over 288/sup 0/C (550/sup 0/F) are presented. Lubricant screening tests on more than 50 products are summarized, and several newly developed lubricants which meet both the compatibility and lubrication requirements are described. Several seal/lubricant systems are recommended for laboratory or field geothermal drilling tests in roller-cone drill bits. The future availability of drill bits for geothermal use is discussed, as well as the potential spinoffs of the program findings for nongeothermal roller-cone bits.

Hendrickson, R.R.; Winzenried, R.W.

1980-07-01T23:59:59.000Z

224

Use of Downhole Motors in Geothermal Drilling in the Philippines  

SciTech Connect

This paper describes the use of downhole motors in the Tiwi geothermal field in the Philippines, The discussion includes the application Of a Dyna-Drill with insert-type bits for drilling through surface alluvium. The economics of this type of drilling are compared to those of conventional rotary drilling. The paper also describes the use of a turbodrill that drills out scale as the well produces geothermal fluids.

Pyle, D. E.

1981-01-01T23:59:59.000Z

225

Be in the Salton Sea Geothermal System, California (USA): Salton Sea Scientific Drilling Project, California State 2-14 well: Final report  

DOE Green Energy (OSTI)

The Salton Sea Geothermal System lies in the old Colorado River Delta, where sediments have been metamorphosed by hydrothermal processes. Fluids, from well Fee No. 5 and deep hole SSSDP California State 2-14, as well as rocks from the deep hole were studied for /sup 10/Be and /sup 9/Be. In the solid samples /sup 10/Be concentration ranges from 29 to 259 /times/ 10/sup 6/ atom/g and /sup 9/Be from 0.49 to 2.52 ppM. The /sup 10/Be concentration in the geothermal waters ranges from 2 /times/ 10/sup 3/ to 2.9 /times/ 10/sup 6/ atom/g and /sup 9/Be from 0.7 to 16.6 ppB. Compared to the steady-state inventory which represents the quantity of /sup 10/Be expected from rain deposition alone (/approximately/1 /times/ 10/sup 12/ atom/cm/sup 2/), the /sup 10/Be inventory in the deep core is 3 orders of magnitude higher (>1 /times/ 10/sup 15/ atom/cm/sup 2/). This indicates that most /sup 10/Be is inherited and that the sediments hosting the geothermal field down to 3250m are young, less than few million year old. /sup 10/Be and /sup 9/Be Kds decrease from surface to bottom (3333 to 48 and 727 to 393, respectively) expressing the strong leaching effect of the solid material by the geothermal waters. This process is more active at depth where pH is <5.3 and salinity high (approx. =25%). Compared to other natural systems, Salton Sea Geothermal fluids are strongly enriched in /sup 10/Be and /sup 9/Be. Finally, contamination has been observed in the fluids samples and we developed a tool that is helping in detecting which samples are contaminated.

Valette-Silver, N.J.

1988-06-01T23:59:59.000Z

226

NETL: News Release - DOE-Funded 'Microhole' Drilling Rig Demonstrated...  

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

Rig Demonstrated Successfully in Midcontinent New Technology Initiative Slashes Drilling Costs, Benefits Environment, Energy Security WASHINGTON, DC - A U.S. Department of...

227

Geothermal drilling and completion technology development  

SciTech Connect

The high cost of drilling and completing geothermal wells is an impediment to the development of geothermal energy resources. Technological deficiencies in rotary drilling techniques are evidenced when drilling geothermal wells. The Division of Geothermal Energy (DGE) of the U.S. Department of Energy has initiated a program aimed at developing new drilling and completion techniques for geothermal wells. The goals of this program are to reduce well costs by 25% by 1982 and by 50% by 1986. Sandia Laboratories has been selected to manage this technology development program, and this paper presents an overview of the program. Program justification which relates well cost to busbar energy cost and to DGE power-on-line goals is presented. Technological deficiencies in current rotary drilling techniques for geothermal wells are discussed. A program for correcting these deficiencies is described.

Varnado, S.G.; Stoller, H.M.

1978-01-01T23:59:59.000Z

228

Advanced Drilling through Diagnostics-White-Drilling  

DOE Green Energy (OSTI)

A high-speed data link that would provide dramatically faster communication from downhole instruments to the surface and back again has the potential to revolutionize deep drilling for geothermal resources through Diagnostics-While-Drilling (DWD). Many aspects of the drilling process would significantly improve if downhole and surface data were acquired and processed in real-time at the surface, and used to guide the drilling operation. Such a closed-loop, driller-in-the-loop DWD system, would complete the loop between information and control, and greatly improve the performance of drilling systems. The main focus of this program is to demonstrate the value of real-time data for improving drilling. While high-rate transfer of down-hole data to the surface has been accomplished before, insufficient emphasis has been placed on utilization of the data to tune the drilling process to demonstrate the true merit of the concept. Consequently, there has been a lack of incentive on the part of industry to develop a simple, low-cost, effective high-speed data link. Demonstration of the benefits of DWD based on a high-speed data link will convince the drilling industry and stimulate the flow of private resources into the development of an economical high-speed data link for geothermal drilling applications. Such a downhole communication system would then make possible the development of surface data acquisition and expert systems that would greatly enhance drilling operations. Further, it would foster the development of downhole equipment that could be controlled from the surface to improve hole trajectory and drilling performance. Real-time data that would benefit drilling performance include: bit accelerations for use in controlling bit bounce and improving rock penetration rates and bit life; downhole fluid pressures for use in the management of drilling hydraulics and improved diagnosis of lost circulation and gas kicks; hole trajectory for use in reducing directional drilling costs; and downhole weight-on-bit and drilling torque for diagnosing drill bit performance. In general, any measurement that could shed light on the downhole environment would give us a better understanding of the drilling process and reduce drilling costs.

FINGER,JOHN T.; GLOWKA,DAVID ANTHONY; LIVESAY,BILLY JOE; MANSURE,ARTHUR J.; PRAIRIE,MICHAEL R.

1999-10-07T23:59:59.000Z

229

Multi-gradient drilling method and system  

DOE Patents (OSTI)

A multi-gradient system for drilling a well bore from a surface location into a seabed includes an injector for injecting buoyant substantially incompressible articles into a column of drilling fluid associated with the well bore. Preferably, the substantially incompressible articles comprises hollow substantially spherical bodies.

Maurer, William C. (Houston, TX); Medley, Jr., George H. (Spring, TX); McDonald, William J. (Houston, TX)

2003-01-01T23:59:59.000Z

230

Status Report A Review of Slimhole Drilling  

DOE Green Energy (OSTI)

This 1994 report reviews the various applications of slimhole technology including for exploration in remote areas, low-cost development wells, reentering existing wells, and horizontal and multilateral drilling. Advantages of slimholes to regular holes are presented. Limitations and disadvantages of slimholes are also discussed. In 1994, slimhole drilling was still an ongoing development technology. (DJE 2005)

Zhu, Tao; Carroll, Herbert B.

1994-09-01T23:59:59.000Z

231

Geothermal drilling technology update  

DOE Green Energy (OSTI)

Sandia National Laboratories conducts a comprehensive geothermal drilling research program for the US Department of Energy, Office of Geothermal Technologies. The program currently includes seven areas: lost circulation technology, hard-rock drill bit technology, high-temperature instrumentation, wireless data telemetry, slimhole drilling technology, Geothermal Drilling Organization (GDO) projects, and drilling systems studies. This paper describes the current status of the projects under way in each of these program areas.

Glowka, D.A.

1997-04-01T23:59:59.000Z

232

Drill string enclosure  

DOE Patents (OSTI)

This invention is comprised of a drill string enclosure which consists of six component parts, including; a top bracket, an upper acrylic cylinder, an acrylic drill casing guide, a lower acrylic cylinder, a bottom bracket, and three flexible ducts. The upper acrylic cylinder is optional based upon the drill string length. The drill string enclosure allows for an efficient drill and sight operation at a hazardous waste site.

Jorgensen, D.K.; Kuhns, D.J.; Wiersholm, O.; Miller, T.A.

1992-12-31T23:59:59.000Z

233

HIGH-POWER TURBODRILL AND DRILL BIT FOR DRILLING WITH COILED TUBING  

SciTech Connect

Commercial introduction of Microhole Technology to the gas and oil drilling industry requires an effective downhole drive mechanism which operates efficiently at relatively high RPM and low bit weight for delivering efficient power to the special high RPM drill bit for ensuring both high penetration rate and long bit life. This project entails developing and testing a more efficient 2-7/8 in. diameter Turbodrill and a novel 4-1/8 in. diameter drill bit for drilling with coiled tubing. The high-power Turbodrill were developed to deliver efficient power, and the more durable drill bit employed high-temperature cutters that can more effectively drill hard and abrasive rock. This project teams Schlumberger Smith Neyrfor and Smith Bits, and NASA AMES Research Center with Technology International, Inc (TII), to deliver a downhole, hydraulically-driven power unit, matched with a custom drill bit designed to drill 4-1/8 in. boreholes with a purpose-built coiled tubing rig. The U.S. Department of Energy National Energy Technology Laboratory has funded Technology International Inc. Houston, Texas to develop a higher power Turbodrill and drill bit for use in drilling with a coiled tubing unit. This project entails developing and testing an effective downhole drive mechanism and a novel drill bit for drilling 'microholes' with coiled tubing. The new higher power Turbodrill is shorter, delivers power more efficiently, operates at relatively high revolutions per minute, and requires low weight on bit. The more durable thermally stable diamond drill bit employs high-temperature TSP (thermally stable) diamond cutters that can more effectively drill hard and abrasive rock. Expectations are that widespread adoption of microhole technology could spawn a wave of 'infill development' drilling of wells spaced between existing wells, which could tap potentially billions of barrels of bypassed oil at shallow depths in mature producing areas. At the same time, microhole coiled tube drilling offers the opportunity to dramatically cut producers' exploration risk to a level comparable to that of drilling development wells. Together, such efforts hold great promise for economically recovering a sizeable portion of the estimated remaining shallow (less than 5,000 feet subsurface) oil resource in the United States. The DOE estimates this U.S. targeted shallow resource at 218 billion barrels. Furthermore, the smaller 'footprint' of the lightweight rigs utilized for microhole drilling and the accompanying reduced drilling waste disposal volumes offer the bonus of added environmental benefits. DOE analysis shows that microhole technology has the potential to cut exploratory drilling costs by at least a third and to slash development drilling costs in half.

Robert Radtke; David Glowka; Man Mohan Rai; David Conroy; Tim Beaton; Rocky Seale; Joseph Hanna; Smith Neyrfor; Homer Robertson

2008-03-31T23:59:59.000Z

234

Vale exploratory slimhole: Drilling and testing  

SciTech Connect

During April-May, 1995, Sandia National Laboratories, in cooperation with Trans-Pacific Geothermal Corporation, drilled a 5825{prime} exploratory slimhole (3.85 in. diameter) in the Vale Known Geothermal Resource Area (KGRA) near Vale, Oregon. This well was part of Sandia`s program to evaluate slimholes as a geothermal exploration tool. During drilling we performed several temperature logs, and after drilling was complete we performed injection tests, bailing from a zone isolated by a packer, and repeated temperature logs. In addition to these measurements, the well`s data set includes: 2714{prime} of continuous core (with detailed log); daily drilling reports from Sandia and from drilling contractor personnel; daily drilling fluid records; numerous temperature logs; pressure shut-in data from injection tests; and comparative data from other wells drilled in the Vale KGRA. This report contains: (1) a narrative account of the drilling and testing, (2) a description of equipment used, (3) a brief geologic description of the formation drilled, (4) a summary and preliminary interpretation of the data, and (5) recommendations for future work.

Finger, J.T.; Jacobson, R.D.; Hickox, C.E.

1996-06-01T23:59:59.000Z

235

DOE/GRI development and testing of a downhole pump for jet-assist drilling  

Science Conference Proceedings (OSTI)

The objective of this project is to accelerate development and commercialization of a high pressure downhole pump (DHP{trademark}) to be used for ultra-high pressure, jet-assisted drilling. The purpose of jet-assisted drilling is to increase the rate of penetration (ROP) in the drilling of deeper gas and oil wells where the rocks become harder and more difficult to drill. As a means to accomplishing this objective, a second generation commercial prototype of a DHP is to be designed, fabricated, tested in the laboratory, and eventually tested in the field. The design of the DOE commercial prototype DHP is current in progress. The layout of the complete DHP is expected to be completed by mid-April. Fabrication and laboratory experimentation is expected to be completed in September. Pending successful completion of the laboratory testing phase, the DOE commercial DHP should be ready for testing in the field by the end of the calendar year.

NONE

1995-07-01T23:59:59.000Z

236

Horizontal Devonian shale well, Columbia Natural Resources, Inc.`s, Pocohontas Development Corp. Well 21747, Martin County, Kentucky. Final report  

SciTech Connect

Columbia Gas and the United States Department of Energy (DOE) have successfully completed field work on a horizontally drilled Devonian shale well located in Martin County, Kentucky. The objective of this cofunded project is to assess the effectiveness and economic feasibility of applying horizontal drilling and hydraulically fracturing stimulation techniques to enhance the extraction of natural gas from the Devonian shale. The well is comprised of three segments: a conventional vertical section, an angle build section and a horizontal section. The well reached a measured depth (MD) of 6263 feet, 3810 feet true vertical depth (TVD), with a horizontal displacement of 2812 feet achieved in the desired direction of N10{degrees}W. Both air and foam were used as drilling fluids. The vertical, lateral and tangent sections were drilled using conventional rotary drilling methods. Downhole motors were used to build angle. A total combined final open flow of 3.1 MMcfd was measured from all zones. Total well expenditures are approximately $1,460,000. Of this amount, $700,000 is directly related to the research and learning curve experience aspects. It is projected that the same horizontal well could be drilled with existing technology for $700,000. If advanced can be made in MWD systems for air drilling environments, wells of this type could be drilled routinely for $500,000. It appears that application of horizontal drilling will result in at least acceleration of gas production and possibly the addition of recoverable reserves from the Devonian shale. Production data, necessary to validate this statement, are also required to determine the economics. As we gain experience and technology advances, cost reductions will occur; this will result in economic improvement.

Koziar, G.; Ahmad, M.M.; Friend, L.L.; Friend, M.L.; Rothman, E.M.; Stollar, R.L. [Columbia Gas System Service Corp., Columbus, OH (United States)] [Columbia Gas System Service Corp., Columbus, OH (United States)

1991-05-01T23:59:59.000Z

237

Horizontal Devonian shale well, Columbia Natural Resources, Inc. 's, Pocohontas Development Corp. Well 21747, Martin County, Kentucky  

SciTech Connect

Columbia Gas and the United States Department of Energy (DOE) have successfully completed field work on a horizontally drilled Devonian shale well located in Martin County, Kentucky. The objective of this cofunded project is to assess the effectiveness and economic feasibility of applying horizontal drilling and hydraulically fracturing stimulation techniques to enhance the extraction of natural gas from the Devonian shale. The well is comprised of three segments: a conventional vertical section, an angle build section and a horizontal section. The well reached a measured depth (MD) of 6263 feet, 3810 feet true vertical depth (TVD), with a horizontal displacement of 2812 feet achieved in the desired direction of N10{degrees}W. Both air and foam were used as drilling fluids. The vertical, lateral and tangent sections were drilled using conventional rotary drilling methods. Downhole motors were used to build angle. A total combined final open flow of 3.1 MMcfd was measured from all zones. Total well expenditures are approximately $1,460,000. Of this amount, $700,000 is directly related to the research and learning curve experience aspects. It is projected that the same horizontal well could be drilled with existing technology for $700,000. If advanced can be made in MWD systems for air drilling environments, wells of this type could be drilled routinely for $500,000. It appears that application of horizontal drilling will result in at least acceleration of gas production and possibly the addition of recoverable reserves from the Devonian shale. Production data, necessary to validate this statement, are also required to determine the economics. As we gain experience and technology advances, cost reductions will occur; this will result in economic improvement.

Koziar, G.; Ahmad, M.M.; Friend, L.L.; Friend, M.L.; Rothman, E.M.; Stollar, R.L. (Columbia Gas System Service Corp., Columbus, OH (United States)) [Columbia Gas System Service Corp., Columbus, OH (United States)

1991-05-01T23:59:59.000Z

238

VERY HIGH-SPEED DRILL STRING COMMUNICATIONS NETWORK  

Science Conference Proceedings (OSTI)

Testing of recent upgrades to the drill pipe telemetry system in a 1000-ft vertical well has shown that the new system can achieve at least 1,000 ft passive transmission distance with sufficient bandwidth to accommodate a digital transmission rate of 2 Mbit/sec. Digitized data from a module at the bottom of the well has been successfully transmitted through the transmission line to the top of the well for a period of approximately one month. Manufacture of 30 prototype range 2 drill pipes has demonstrated greater simplicity of manufacturing and greater consistency of electrical characteristics from part to part, as compared to the first production run previously reported. Further work is needed to improve the high pressure capability of the system and to improve the robustness of the system in a high-vibration environment.

David S. Pixton

2002-08-01T23:59:59.000Z

239

EIA Corrects Errors in Its Drilling Activity Estimates Series  

U.S. Energy Information Administration (EIA)

gas and oil wells relative to total wells, improved greatly as early as 1986 as seen in the revised drilling statistics. The prior well data series did

240

Recent drilling activities at the earth power resources Tuscarora geothermal power project's hot sulphur springs lease area.  

DOE Green Energy (OSTI)

Earth Power Resources, Inc. recently completed a combined rotary/core hole to a depth of 3,813 feet at it's Hot Sulphur Springs Tuscarora Geothermal Power Project Lease Area located 70-miles north of Elko, Nevada. Previous geothermal exploration data were combined with geologic mapping and newly acquired seismic-reflection data to identify a northerly tending horst-graben structure approximately 2,000 feet wide by at least 6,000 feet long with up to 1,700 feet of vertical offset. The well (HSS-2) was successfully drilled through a shallow thick sequence of altered Tertiary Volcanic where previous exploration wells had severe hole-caving problems. The ''tight-hole'' drilling problems were reduced using drilling fluids consisting of Polymer-based mud mixed with 2% Potassium Chloride (KCl) to reduce Smectite-type clay swelling problems. Core from the 330 F fractured geothermal reservoir system at depths of 2,950 feet indicated 30% Smectite type clays existed in a fault-gouge zone where total loss of circulation occurred during coring. Smectite-type clays are not typically expected at temperatures above 300 F. The fracture zone at 2,950 feet exhibited a skin-damage during injection testing suggesting that the drilling fluids may have caused clay swelling and subsequent geothermal reservoir formation damage. The recent well drilling experiences indicate that drilling problems in the shallow clays at Hot Sulphur Springs can be reduced. In addition, average penetration rates through the caprock system can be on the order of 25 to 35 feet per hour. This information has greatly reduced the original estimated well costs that were based on previous exploration drilling efforts. Successful production formation drilling will depend on finding drilling fluids that will not cause formation damage in the Smectite-rich fractured geothermal reservoir system. Information obtained at Hot Sulphur Springs may apply to other geothermal systems developed in volcanic settings.

Goranson, Colin

2005-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Geothermal Well Technology Program  

DOE Green Energy (OSTI)

The high cost of drilling and completing geothermal wells is an impediment to the development of geothermal energy resources. Technological deficiencies in rotary drilling techniques are evidenced when drilling geothermal wells. The Division of Geothermal Energy (DGE) of the U.S. Department of Energy has initiated a program aimed at developing new drilling and completion techniques for geothermal wells. The goals of this program are to reduce well costs by 25% by 1982 and by 50% by 1986. An overview of the program is presented. Program justification which relates well cost to busbar energy cost and to DGE power-on-line goals is presented. Technological deficiencies encountered when current rotary drilling techniques are used for geothermal wells are discussed. A program for correcting these deficiencies is described.

Varnado, S.G.

1978-01-01T23:59:59.000Z

242

Thermal indicator for wells  

DOE Patents (OSTI)

Minute durable plate-like thermal indicators are employed for precision measuring static and dynamic temperatures of well drilling fluids. The indicators are small enough and sufficiently durable to be circulated in the well with drilling fluids during the drilling operation. The indicators include a heat resistant indicating layer, a coacting meltable solid component and a retainer body which serves to unitize each indicator and which may carry permanent indicator identifying indicia. The indicators are recovered from the drilling fluid at ground level by known techniques.

Gaven, Jr., Joseph V. (Oakton, VA); Bak, Chan S. (Newbury Park, CA)

1983-01-01T23:59:59.000Z

243

Drilling for energy resources  

DOE Green Energy (OSTI)

Drilling is integral to the exploration, development, and production of most energy resources. Oil and natural gas, which are dependent on drilling technology, together account for about 77% of the energy sources consumed in the US. Thus, the limitations of current drilling technology also restrict the rate at which new energy supplies can be found, extracted, and brought to the marketplace. The purpose of the study reported was to examine current drilling technology, suggest areas where additional research and development (R and D) might significantly increase drilling rates and capabilities, and suggest a strategy for improving drilling technology. An overview is provided of the US drilling industry. The drilling equipment and techniques now used for finding and recovering oil, natural gas, coal, shale oil, nuclear fuels, and geothermal energy are described. Although by no means exhaustive, these descriptions provide the background necessary to adequately understand the problems inherent in attempts to increase instantaneous and overall drilling rates.

Not Available

1976-01-01T23:59:59.000Z

244

Reservoir screening criteria for underbalanced drilling  

Science Conference Proceedings (OSTI)

Properly designed and executed underbalanced drilling operations can eliminate or significantly reduce formation damage, mud or drill solids invasion, lost circulation, fluid entrainment and trapping effects, and potential adverse reactions of drilling fluids with the reservoir matrix or in-situ reservoir fluids. The key to selecting appropriate reservoir candidates is achieving a balance of technical, safety and economic factors. Not every reservoir is an ideal candidate for an underbalanced drilling operation and in some cases distinct disadvantages may exist in trying to execute an underbalanced drilling operation in comparison to a simpler more conventional overbalanced application. Extensive field experience has played an important role in determining the following key criteria and design considerations that should be examined when evaluating a well. Screening criteria are also provided to help operators ascertain if a given formation is, in fact, a viable underbalanced drilling candidate.

Bennion, D.B. [Hycal Energy Research Labs. Ltd., Calgary, Alberta (Canada)

1997-02-01T23:59:59.000Z

245

Coiled tubing drilling requires economic and technical analyses  

Science Conference Proceedings (OSTI)

Field experience has proven that coiled tubing drilling is a technical and economic option on some wells; however, coiled tubing drilling is not the solution to every drilling prospect or production-enhancement job. To determine if coiled tubing drilling is viable, the geographic, technical, and economic aspects of each project must be considered in detail. Generally, with some limitations, coiled tubing drilling is feasible primarily when jointed pipe cannot be used effectively. Also, coiled tubing drilling may be more appropriate because of some special well site requirements, such as environmental regulations requiring less surface disturbance. The paper discusses technical considerations which need to be considered, economic feasibility, limitations of well types (new shallow wells, conventional reentry, through-tubing reentry, and underbalanced drilling), and outlook for further growth in the coiled tubing drilling industry.

Gary, S.C. (Schlumberger Dowell, Sugar Land, TX (United States))

1995-02-20T23:59:59.000Z

246

DRILLED HYDROTHERMAL ENERGY Drilling for seawater  

E-Print Network (OSTI)

technologies to obtain thermal energy (and other benefits) from a large body of water #12;Microgrid Customer ENERGY : Underground Technologies #12;#12;Microgrid Customer Facilities Drilled Hydrothermal Energy Plant;#12;Microgrid Customer Facilities Drilled Hydrothermal Energy Plant Cooling Power Biofuel / H2 Fresh Water

247

Drilling Fluid Corrosion  

Science Conference Proceedings (OSTI)

Table 8   Drilling fluid corrosion control troubleshooting chart...Table 8 Drilling fluid corrosion control troubleshooting chart Corrosion cause Primary source Identification Major corrosion forms Remedies Oxygen Atmosphere, mud conditioning, equipment, oxidizing

248

Hydromechanical drilling device  

DOE Patents (OSTI)

A hydromechanical drilling tool which combines a high pressure water jet drill with a conventional roller cone type of drilling bit. The high pressure jet serves as a tap drill for cutting a relatively small diameter hole in advance of the conventional bit. Auxiliary laterally projecting jets also serve to partially cut rock and to remove debris from in front of the bit teeth thereby reducing significantly the thrust loading for driving the bit.

Summers, David A. (Rolla, MO)

1978-01-01T23:59:59.000Z

249

NETL: News Release - DOE-Funded "Smart" Drilling Prototype On Track for  

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

September 13, 2004 September 13, 2004 DOE-Funded "Smart" Drilling Prototype On Track for Commercialization A Department of Energy-sponsored technology that allows natural gas and oil explorers to drill safer, more productive wells by using a high-speed, down-hole communications system has crossed a major milestone: A prototype is being successfully tested in a full-scale commercial well for the first time, putting it on the fast track to commercialization. MORE INFO Read about the June, 2003 IntellipipeTM field test The technology, called Intellipipe(TM), is able to transmit large bits of data to the surface as a well is being drilled. About 1 million bits of information-including temperature, geology, pressure, and rate of penetration-can be transmitted in a single second, which is

250

Exploratory Well | Open Energy Information  

Open Energy Info (EERE)

Exploratory Well Exploratory Well Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Exploratory Well Details Activities (8) Areas (3) Regions (0) NEPA(5) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Exploration Drilling Parent Exploration Technique: Exploration Drilling Information Provided by Technique Lithology: Can provide core or cuttings Stratigraphic/Structural: Identify stratigraphy and structural features within a well Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates Thermal: -Temperatures can be measured within the hole -Information about the heat source Dictionary.png Exploratory Well: An exploratory well is drilled for the purpose of identifying the

251

STIMULATION TECHNOLOGIES FOR DEEP WELL COMPLETIONS  

SciTech Connect

The Department of Energy (DOE) is sponsoring a Deep Trek Program targeted at improving the economics of drilling and completing deep gas wells. Under the DOE program, Pinnacle Technologies is conducting a project to evaluate the stimulation of deep wells. The objective of the project is to assess U.S. deep well drilling & stimulation activity, review rock mechanics & fracture growth in deep, high pressure/temperature wells and evaluate stimulation technology in several key deep plays. Phase 1 was recently completed and consisted of assessing deep gas well drilling activity (1995-2007) and an industry survey on deep gas well stimulation practices by region. Of the 29,000 oil, gas and dry holes drilled in 2002, about 300 were drilled in the deep well; 25% were dry, 50% were high temperature/high pressure completions and 25% were simply deep completions. South Texas has about 30% of these wells, Oklahoma 20%, Gulf of Mexico Shelf 15% and the Gulf Coast about 15%. The Rockies represent only 2% of deep drilling. Of the 60 operators who drill deep and HTHP wells, the top 20 drill almost 80% of the wells. Six operators drill half the U.S. deep wells. Deep drilling peaked at 425 wells in 1998 and fell to 250 in 1999. Drilling is expected to rise through 2004 after which drilling should cycle down as overall drilling declines.

Stephen Wolhart

2003-06-01T23:59:59.000Z

252

Coiled tubing drilling with supercritical carbon dioxide  

DOE Patents (OSTI)

A method for increasing the efficiency of drilling operations by using a drilling fluid material that exists as supercritical fluid or a dense gas at temperature and pressure conditions existing at a drill site. The material can be used to reduce mechanical drilling forces, to remove cuttings, or to jet erode a substrate. In one embodiment, carbon dioxide (CO.sub.2) is used as the material for drilling within wells in the earth, where the normal temperature and pressure conditions cause CO.sub.2 to exist as a supercritical fluid. Supercritical carbon dioxide (SC--CO.sub.2) is preferably used with coiled tube (CT) drilling equipment. The very low viscosity SC--CO.sub.2 provides efficient cooling of the drill head, and efficient cuttings removal. Further, the diffusivity of SC--CO.sub.2 within the pores of petroleum formations is significantly higher than that of water, making jet erosion using SC--CO.sub.2 much more effective than water jet erosion. SC--CO.sub.2 jets can be used to assist mechanical drilling, for erosion drilling, or for scale removal. A choke manifold at the well head or mud cap drilling equipment can be used to control the pressure within the borehole, to ensure that the temperature and pressure conditions necessary for CO.sub.2 to exist as either a supercritical fluid or a dense gas occur at the drill site. Spent CO.sub.2 can be vented to the atmosphere, collected for reuse, or directed into the formation to aid in the recovery of petroleum.

Kolle , Jack J. (Seattle, WA)

2002-01-01T23:59:59.000Z

253

Monitoring downhole pressures and flow rates critical for underbalanced drilling  

Science Conference Proceedings (OSTI)

True underbalanced drilling, and not just flow drilling, requires thorough engineering and monitoring of downhole pressures and flow rates to ensure the formations are drilled without formation damage. Underbalanced drilling involves intentionally manipulating the bottom hole circulating pressure so that it is less than static reservoir pressure. This underbalanced pressure condition allows reservoir fluids to enter the well bore while drilling continues, preventing fluid loss and many causes of formation damage. Applied correctly, this technology can address problems of formation damage, lost circulation, and poor penetration rates. Another important benefit of drilling underbalanced is the ability to investigate the reservoir in real time. The paper discusses the reasons for under balanced drilling, creating underbalance, well site engineering, fluids handling, rotating flow divertor injection gas, survey techniques, data acquisition, operations, maintaining under-balance, routine drilling, rate of penetration, misconceptions, and economics.

Butler, S.D.; Rashid, A.U.; Teichrob, R.R. [Flow Drilling Engineering Ltd., Calgary, Alberta (Canada)

1996-09-16T23:59:59.000Z

254

A study on chemical interactions between waste fluid, formation water, and host rock during deep well injection  

E-Print Network (OSTI)

the area. While drilling NDW-1, fluid samples were collectedorigin of the fluid collected while drilling the new well

Spycher, Nicolas; Larkin, Randy

2004-01-01T23:59:59.000Z

255

Development of downhole instruments for use in the Salton Sea Scientific Drilling Project  

DOE Green Energy (OSTI)

Sandia developed high temperature logging instruments for use in the Salton Sea Scientific Drilling Project. These tools - Kuster mechanical tools for measuring temperature, pressure, and flow; a temperature and pressure tool built around an electronic memory; and a timing and control unit to power a downhole sampler - were all designed for slickline operation to temperatures up to 400/sup 0/C. The drilling of the scientific well and the application of these tools in it were successful. The technology advances made in the development of these tools have been transferred to industry. These advances should prove valuable in future scientific and commercial applications.

Carson, C.C.

1986-01-01T23:59:59.000Z

256

Well Deepening | Open Energy Information  

Open Energy Info (EERE)

Well Deepening Well Deepening Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Well Deepening Details Activities (5) Areas (3) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Development Drilling Information Provided by Technique Lithology: Drill cuttings are analyzed to determine lithology and mineralogy Stratigraphic/Structural: Fractures, faults, and geologic formations that the well passes through are identified and mapped. Hydrological: Identify aquifers, reservoir boundaries, flow rates, fluid pressure, and chemistry Thermal: Direct temperature measurements from within the reservoir Dictionary.png Well Deepening:

257

Production Wells | Open Energy Information  

Open Energy Info (EERE)

Production Wells Production Wells (Redirected from Development Wells) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Production Wells Details Activities (13) Areas (13) Regions (0) NEPA(7) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Development Drilling Information Provided by Technique Lithology: Drill cuttings are analyzed to determine lithology and mineralogy Stratigraphic/Structural: Fractures, faults, and geologic formations that the well passes through are identified and mapped. Hydrological: Identify aquifers, reservoir boundaries, flow rates, fluid pressure, and chemistry Thermal: Direct temperature measurements from within the reservoir

258

Production Wells | Open Energy Information  

Open Energy Info (EERE)

Production Wells Production Wells Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Production Wells Details Activities (13) Areas (13) Regions (0) NEPA(7) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Development Drilling Information Provided by Technique Lithology: Drill cuttings are analyzed to determine lithology and mineralogy Stratigraphic/Structural: Fractures, faults, and geologic formations that the well passes through are identified and mapped. Hydrological: Identify aquifers, reservoir boundaries, flow rates, fluid pressure, and chemistry Thermal: Direct temperature measurements from within the reservoir Dictionary.png Production Wells:

259

Aqueous foam surfactants for geothermal drilling fluids: 1. Screening  

DOE Green Energy (OSTI)

Aqueous foam is a promising drilling fluid for geothermal wells because it will minimize damage to the producing formation and would eliminate the erosion problems of air drilling. Successful use of aqueous foam will require a high foaming surfactant which will: (1) be chemically stable in the harsh thermal and chemical environment, and (2) form stable foams at high temperatures and pressures. The procedures developed to generate and test aqueous foams and the effects of a 260/sup 0/C temperature cycle on aqueous surfactant solutions are presented. More than fifty selected surfactants were evaluated with representatives from the amphoteric, anionic, cationic, and nonionic classes included. Most surfactants were severely degraded by this temperature cycle; however, some showed excellent retention of their properties. The most promising surfactant types were the alkyl and alkyl aryl sulfonates and the ethoxylated nonionics.

Rand, P.B.

1980-01-01T23:59:59.000Z

260

State-of-the-art in coalbed methane drilling fluids  

SciTech Connect

The production of methane from wet coalbeds is often associated with the production of significant amounts of water. While producing water is necessary to desorb the methane from the coal, the damage from the drilling fluids used is difficult to assess, because the gas production follows weeks to months after the well is drilled. Commonly asked questions include the following: What are the important parameters for drilling an organic reservoir rock that is both the source and the trap for the methane? Has the drilling fluid affected the gas production? Are the cleats plugged? Does the 'filtercake' have an impact on the flow of water and gas? Are stimulation techniques compatible with the drilling fluids used? This paper describes the development of a unique drilling fluid to drill coalbed methane wells with a special emphasis on horizontal applications. The fluid design incorporates products to match the delicate surface chemistry on the coal, a matting system to provide both borehole stability and minimize fluid losses to the cleats, and a breaker method of removing the matting system once drilling is completed. This paper also discusses how coal geology impacts drilling planning, drilling practices, the choice of drilling fluid, and completion/stimulation techniques for Upper Cretaceous Mannville-type coals drilled within the Western Canadian Sedimentary Basin. A focus on horizontal coalbed methane (CBM) wells is presented. Field results from three horizontal wells are discussed, two of which were drilled with the new drilling fluid system. The wells demonstrated exceptional stability in coal for lengths to 1000 m, controlled drilling rates and ease of running slotted liners. Methods for, and results of, placing the breaker in the horizontal wells are covered in depth.

Baltoiu, L.V.; Warren, B.K.; Natras, T.A.

2008-09-15T23:59:59.000Z

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261

Steamboat Hills exploratory slimhole: Drilling and testing  

DOE Green Energy (OSTI)

During July-September, 1993, Sandia National Laboratories, in cooperation with Far West Capital, drilled a 4000 feet exploratory slimhole (3.9 inch diameter) in the Steamboat Hills geothermal field near Reno, Nevada. This well was part of Sandia`s program to evaluate slimholes as a geothermal exploration tool. During and after drilling the authors performed four series of production and injection tests while taking downhole (pressure-temperature-spinner) and surface (wellhead pressure and temperature, flow rate) data. In addition to these measurements, the well`s data set includes: continuous core (with detailed log); borehole televiewer images of the wellbore`s upper 500 feet; daily drilling reports from Sandia and from drilling contractor personnel; daily drilling fluid record; numerous temperature logs; and comparative data from production and injection wells in the same field. This report contains: (1) a narrative account of the drilling and testing, (2) a description of equipment used, (3) a brief geologic description of the formation drilled, (4) a summary and preliminary interpretation of the data, and (5) recommendations for future work.

Finger, J.T.; Jacobson, F.D.; Hickox, C.E.; Eaton, R.R.

1994-10-01T23:59:59.000Z

262

Underbalanced drilling: Praises and perils  

Science Conference Proceedings (OSTI)

Underbalanced drilling (UBD) has been used with increasing frequency to minimize problems associated with invasive formation damage, which often greatly reduce the productivity of oil and gas reservoirs, particularly in openhole horizontal well applications. UBD, when properly designed and executed, minimizes or eliminates problems associated with the invasion of particulate matter into the formation as well as a multitude of other problems such as adverse clay reactions, phase trapping, precipitation, and emulsification, which can be caused by the invasion of incompatible mud filtrates in an overbalanced condition. In many UBD operations, additional benefits are seen because of a reduction in drilling time, greater rates of penetration, increased bit life, a rapid indication of productive reservoir zones, and the potential for dynamic flow testing while drilling. Potential downsides and damage mechanisms associated with UBD will be discussed. These include the following: (1) Increased cost and safety concerns; (2) Difficulty in maintaining a continuously underbalanced condition; (3) Spontaneous inhibition and countercurrent inhibition effects; (4) Glazing, mashing, and mechanically induced wellbore damage; (5) Macroporosity gravity-induced invasion; (6) Difficulty of application in zones of extreme pressure and permeability; and (7) Political/career risk associated with championing a new and potentially risky technology. The authors discuss reservoir parameters required to design an effective underbalanced or overbalanced drilling program, laboratory screening procedures to ascertain the effectiveness of UBD in a specific application and review the types of reservoirs that often present good applications for UBD technology.

Bennion, D.B.; Thomas, F.B.; Bietz, R.F.; Bennion, D.W. [Hycal Energy Research Labs., Ltd., Calgary, Alberta (Canada)

1998-12-01T23:59:59.000Z

263

Development and Testing of Insulated Drill Pipe  

DOE Green Energy (OSTI)

This project has comprised design, analysis, laboratory testing, and field testing of insulated drill pipe (IDP). This paper will briefly describe the earlier work, but will focus on results from the recently-completed field test in a geothermal well. Field test results are consistent with earlier analyses and laboratory tests, all of which support the conclusion that insulated drill pipe can have a very significant effect on circulating fluid temperatures. This will enable the use of downhole motors and steering tools in hot wells, and will reduce corrosion, deterioration of drilling fluids, and heat-induced failures in other downhole components.

Champness, T.; Finger, J.; Jacobson, R.

1999-07-07T23:59:59.000Z

264

Shallow horizontal drilling in unconsolidated sands offshore California  

SciTech Connect

Four shallow horizontal wells were drilled from Platform C in Dos Cuadras field offshore California to recover reserves inaccessible with conventional drilling techniques. The wells had true vertical depths (TVD's) ranging from 746 to 989 ft with total horizontal displacements from 1,613 to 3,788 ft. The wells had horizontal displacement TVD ratios up to 3.95. The targets were unconsolidated, high-permeability sands. This paper details well planning, drilling, and completion.

Payne, J.D.; Bunyak, M.J. (Unocal Corp., Los Angeles, CA (United States)); Huston, C.W. (Smith International Inc., Tyler, TX (United States))

1993-12-01T23:59:59.000Z

265

Method of deep drilling  

DOE Patents (OSTI)

Deep drilling is facilitated by the following steps practiced separately or in any combination: (1) Periodically and sequentially fracturing zones adjacent the bottom of the bore hole with a thixotropic fastsetting fluid that is accepted into the fracture to overstress the zone, such fracturing and injection being periodic as a function of the progression of the drill. (2) Casing the bore hole with ductile, pre-annealed casing sections, each of which is run down through the previously set casing and swaged in situ to a diameter large enough to allow the next section to run down through it. (3) Drilling the bore hole using a drill string of a low density alloy and a high density drilling mud so that the drill string is partially floated.

Colgate, Stirling A. (4616 Ridgeway, Los Alamos, NM 87544)

1984-01-01T23:59:59.000Z

266

Hydraulic Fracturing and Horizontal Gas Well Drilling Reference List This list is in no way exhaustive. Rather, it attempts to provide a set of primary references that offer key pieces of  

E-Print Network (OSTI)

development Impact Assessment of Natural Gas Production in the New York City Water Supply Watershed (2009). NYCDEP http://home2.nyc.gov/html/dep/html/news/natural_gas_drilling.shtml Review of water related and infiltration events Short Scholarly Features Natural Gas Plays in the Marcellus Shale: Challenges & Potential

Wang, Z. Jane

267

Remote drill bit loader  

DOE Patents (OSTI)

A drill bit loader is described for loading a tapered shank of a drill bit into a similarly tapered recess in the end of a drill spindle. The spindle has a transverse slot at the inner end of the recess. The end of the tapered shank of the drill bit has a transverse tang adapted to engage in the slot so that the drill bit will be rotated by the spindle. The loader is in the form of a cylinder adapted to receive the drill bit with the shank projecting out of the outer end of the cylinder. Retainer pins prevent rotation of the drill bit in the cylinder. The spindle is lowered to extend the shank of the drill bit into the recess in the spindle and the spindle is rotated to align the slot in the spindle with the tang on the shank. A spring unit in the cylinder is compressed by the drill bit during its entry into the recess of the spindle and resiliently drives the tang into the slot in the spindle when the tang and slot are aligned. In typical remote drilling operations, whether in hot cells or water pits, drill bits have been held using a collet or end mill type holder with set screws. In either case, to load or change a drill bit required the use master-slave manipulators to position the bits and tighten the collet or set screws. This requirement eliminated many otherwise useful work areas because they were not equipped with slaves, particularly in water pits.

Dokos, J.A.

1996-12-31T23:59:59.000Z

268

Geothermal Drilling Organization  

DOE Green Energy (OSTI)

The Geothermal Drilling Organization (GDO), founded in 1982 as a joint Department of Energy (DOE)-Industry organization, develops and funds near-term technology development projects for reducing geothermal drilling costs. Sandia National Laboratories administers DOE funds to assist industry critical cost-shared projects and provides development support for each project. GDO assistance to industry is vital in developing products and procedures to lower drilling costs, in part, because the geothermal industry is small and represents a limited market.

Sattler, A.R.

1999-07-07T23:59:59.000Z

269

Drill Press Speed Chart  

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

operating speeds (RPM) Accessory Softwood (Pine) Hardwood (Hard Maple) Acrylic Brass Aluminum Steel Shop Notes Twist drill bits 116" - 316" 14" - 38" 716"- 58" 11...

270

Drilling motor deviation tool  

Science Conference Proceedings (OSTI)

An extension for a down hole drilling motor is described, which adapts the motor for selective configuration for straight hole drilling or directional drilling, selectively. It consists of: an elongated generally tubular body, adapted at a first end to rigidly attach to the lower end of a down hole drilling motor housing, the body having an opening extending along the general centerline of the body; fluid channel means situated in the opening to conduct drilling fluid from the motor fluid output means to a downwardly continuing drill string element; output shaft means situated in the body and extending from a second end of the body, the output shaft adapted at the extended extreme for attachment to a downwardly continuing drill string element; selector valve means situated in the body, operatively associated with drilling fluid channels in the body, responsive to drilling fluid flow to produce a first output signal in response to fluid flow manipulations having a first characteristic and to produce a second output signal in response to fluid flow manipulations having a second characteristic; and driveshaft connector means in the opening, operatively associated with the output shaft of the motor and the output shaft means to connect the two for sympathetic rotation.

Falgout, T.E.; Schoeffler, W.N.

1989-03-14T23:59:59.000Z

271

Underbalanced coiled tubing sidetrack successful  

Science Conference Proceedings (OSTI)

The technique of drilling through a completion string, underbalanced, with coiled tubing eliminated some of the problems encountered with overbalanced drilling in a group of offset wells. This project confirmed that performing drilling operations in live wells can be carried out safely and effectively. Dalen is a sour gas field in the eastern part of The Netherlands and produces from vertical fractures in the Zechstein carbonate reservoir. The proposal for Dalen 2 was to abandon the lower section of the original hole and subsequently sidetrack conventionally to the top of the reservoir, run and cement a 5-in. liner, complete the well with a 5-in. monobore completion, and install the christmas tree. This part of the operation would be performed with a workover hoist. Thereafter, a 3 3/4-in. hole would be drilled through the completion and into the reservoir, underbalanced with coiled tubing. The drilling proposal had to address a number of key issues: creating underbalanced conditions; handling sour gas production at surface; handling and treating drilling fluids at surface; removing drilled solids from the returned fluid system; and deploying a long coiled tubing drilling bottom hole assembly (BHA) into a live well. The paper discusses planning, legislative issues, well preparation, the drilling program, and lessons learned.

Adam, J.; Berry, M. [Nederlandse Aardolie Maatschappij B.V., Assen (Netherlands)

1995-12-18T23:59:59.000Z

272

Counter-Rotating Tandem Motor Drilling System  

SciTech Connect

Gas Technology Institute (GTI), in partnership with Dennis Tool Company (DTC), has worked to develop an advanced drill bit system to be used with microhole drilling assemblies. One of the main objectives of this project was to utilize new and existing coiled tubing and slimhole drilling technologies to develop Microhole Technology (MHT) so as to make significant reductions in the cost of E&P down to 5000 feet in wellbores as small as 3.5 inches in diameter. This new technology was developed to work toward the DOE's goal of enabling domestic shallow oil and gas wells to be drilled inexpensively compared to wells drilled utilizing conventional drilling practices. Overall drilling costs can be lowered by drilling a well as quickly as possible. For this reason, a high drilling rate of penetration is always desired. In general, high drilling rates of penetration (ROP) can be achieved by increasing the weight on bit and increasing the rotary speed of the bit. As the weight on bit is increased, the cutting inserts penetrate deeper into the rock, resulting in a deeper depth of cut. As the depth of cut increases, the amount of torque required to turn the bit also increases. The Counter-Rotating Tandem Motor Drilling System (CRTMDS) was planned to achieve high rate of penetration (ROP) resulting in the reduction of the drilling cost. The system includes two counter-rotating cutter systems to reduce or eliminate the reactive torque the drillpipe or coiled tubing must resist. This would allow the application of maximum weight-on-bit and rotational velocities that a coiled tubing drilling unit is capable of delivering. Several variations of the CRTDMS were designed, manufactured and tested. The original tests failed leading to design modifications. Two versions of the modified system were tested and showed that the concept is both positive and practical; however, the tests showed that for the system to be robust and durable, borehole diameter should be substantially larger than that of slim holes. As a result, the research team decided to complete the project, document the tested designs and seek further support for the concept outside of the DOE.

Kent Perry

2009-04-30T23:59:59.000Z

273

Definition: Production Wells | Open Energy Information  

Open Energy Info (EERE)

Definition Edit with form History Facebook icon Twitter icon Definition: Production Wells Jump to: navigation, search Dictionary.png Production Wells A well drilled with the...

274

OPTIMIZATION OF MUD HAMMER DRILLING PERFORMANCE - A PROGRAM TO BENCHMARK THE VIABILITY OF ADVANCED MUD HAMMER DRILLING  

Science Conference Proceedings (OSTI)

This document details the progress to date on the OPTIMIZATION OF MUD HAMMER DRILLING PERFORMANCE--A PROGRAM TO BENCHMARK THE VIABILITY OF ADVANCED MUD HAMMER DRILLING contract for the quarter starting January 2002 through March 2002. Accomplishments include the following: In accordance to Task 7.0 (D. No.2 Technical Publications) TerraTek, NETL, and the Industry Contributors successfully presented a paper detailing Phase 1 testing results at the February 2002 IADC/SPE Drilling Conference, a prestigious venue for presenting DOE and private sector drilling technology advances. The full reference is as follows: (1) IADC/SPE 74540 ''World's First Benchmarking of Drilling Mud Hammer Performance at Depth Conditions'' authored by Gordon A. Tibbitts, TerraTek; Roy C. Long, US Department of Energy, Brian E. Miller, BP America, Inc.; Arnis Judzis, TerraTek; and Alan D. Black, TerraTek. Gordon Tibbitts, TerraTek, will presented the well-attended paper in February of 2002. The full text of the Mud Hammer paper was included in the last quarterly report. (2) The Phase 2 project planning meeting (Task 6) was held at ExxonMobil's Houston Greenspoint offices on February 22, 2002. In attendance were representatives from TerraTek, DOE, BP, ExxonMobil, PDVSA, Novatek, and SDS Digger Tools. (3) PDVSA has joined the advisory board to this DOE mud hammer project. PDVSA's commitment of cash and in-kind contributions were reported during the last quarter. (4) Strong Industry support remains for the DOE project. Both Andergauge and Smith Tools have expressed an interest in participating in the ''optimization'' phase of the program. The potential for increased testing with additional Industry cash support was discussed at the planning meeting in February 2002.

Gordon Tibbitts; Arnis Judzis

2002-04-01T23:59:59.000Z

275

Horizontal well improves oil recovery from polymer flood--  

Science Conference Proceedings (OSTI)

Horizontal drilling associated with an injection scheme appears to be highly promising for obtaining additional oil recovery. Horizontal well CR 163H, in the Chateaurenard field is discussed. It demonstrated that a thin unconsolidated sand can be successfully drilled and cased. The productivity index (PI) of the well was much greater than vertical wells, and an unproduced oil bank was successfully intersected. On the negative side, it was necessary to pump low in a very deviated part of the well, and the drilling cost was high compared to an onshore vertical well. CR 163H was the fifth and probably most difficult horizontal well drilled by Elf Aquitaine. Located within a polymer-flood project, the target was a 7-m thick sand reservoir at a vertical depth of 590:0080 m. In this inverted seven-spot configuration with one injector in the center and six producers at a distance of 400 m, a polymer solution was injected from 1977 to 1983, followed by water injection.

Bruckert, L. (Elf Aquitaine, Boussens, (FR))

1989-12-18T23:59:59.000Z

276

Stepout-Deepening Wells At Rye Patch Area (Warpinski, Et Al., 2002) | Open  

Open Energy Info (EERE)

2) 2) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Deepening At Rye Patch Area (Warpinski, Et Al., 2002) Exploration Activity Details Location Rye Patch Area Exploration Technique Well Deepening Activity Date Usefulness not indicated DOE-funding Unknown Notes The drilling plan called for re-entering a recently drilled well, which had been temporarily abandoned in a previous attempt due to a high lost-circulation zone. During the re-drilling a new lost-circulation foam was applied and the results were relatively successful using two applications of the foam (Mansure, 2001). After isolating the lost-circulation interval behind casing, drilling continued, although with considerable difficulty because of additional lost circulation zones and

277

Portable top drive cuts horizontal drilling costs  

SciTech Connect

Economic analysis of a seven-well, long-reach horizontal drilling program into an unconsolidated, heavy-oil-bearing reservoir in Winter field near the Alberta/Saskatchewan border in Canada reveals that -- in the right application -- renting a portable top drive drilling system can reduce total drilling costs. Use of the portable top drive combined with other cost-saving measures enabled Saskoil, one of Canada`s larger independents, to drill more cheaply, on a cost-per-meter basis, in 1993 than in 1992. This was despite significant rental rates for drilling rigs and directional drilling services caused by increased demand in Western Canada. Total cost savings of 10% on wells that would otherwise cost in the (C) $500,000 range are believed realistic. Based on this year`s performance, Saskoil recommends top drive for the company`s future horizontal wells in this area. This article describes the operator`s horizontal well program, advantages of top drive in that program and how it was installed and applied. Estimated time savings for six wells, plus other ways top drive can cut costs and improve operations are discussed.

Jackson, B. [Saskoil, Regina, Saskatchewan (Canada); Yager, D. [Tesco Drilling Tech., Calgary, Alberta (Canada)

1993-11-01T23:59:59.000Z

278

Integrating surface systems with downhole data improves underbalanced drilling  

Science Conference Proceedings (OSTI)

An integrated approach of using special downhole sensors and transmission capabilities in conjunction with a surface drilling optimization system has improved the management and understanding of the underbalanced drilling environment within a closed loop system. Improving the underbalanced drilling operation and obtaining quality data in real time can help eliminate damage to the formation and increase ultimate production. Recent advances in drilling technology have made it possible to drill horizontal wells underbalanced more safely and effectively. This technology has greatly reduced the potential for skin damage to the bore hole. Experience from western Canadian underbalanced horizontal drilling clearly demonstrates that a well bore`s initial productive potential is very accurately predicted from its productive behavior during drilling operations.

Comeau, L. [Sperry-Sun Drilling Services, Calgary, Alberta (Canada)

1997-03-03T23:59:59.000Z

279

Microhole Drilling Tractor Technology Development  

SciTech Connect

In an effort to increase the U.S. energy reserves and lower costs for finding and retrieving oil, the USDOE created a solicitation to encourage industry to focus on means to operate in small diameter well-Microhole. Partially in response to this solicitation and because Western Well Tool's (WWT) corporate objective to develop small diameter coiled tubing drilling tractor, WWT responded to and was awarded a contract to design, prototype, shop test, and field demonstrate a Microhole Drilling Tractor (MDT). The benefit to the oil industry and the US consumer from the project is that with the MDT's ability to facilitate Coiled Tubing drilled wells to be 1000-3000 feet longer horizontally, US brown fields can be more efficiently exploited resulting in fewer wells, less environmental impact, greater and faster oil recovery, and lower drilling costs. Shortly after award of the contract, WWT was approached by a major oil company that strongly indicated that the specified size of a tractor of 3.0 inches diameter was inappropriate and that immediate applications for a 3.38-inch diameter tractor would substantially increase the usefulness of the tool to the oil industry. Based on this along with an understanding with the oil company to use the tractor in multiple field applications, WWT applied for and was granted a no-cost change-of-scope contract amendment to design, manufacture, assemble, shop test and field demonstrate a prototype a 3.38 inch diameter MDT. Utilizing existing WWT tractor technology and conforming to an industry developed specification for the tool, the Microhole Drilling Tractor was designed. Specific features of the MDT that increase it usefulness are: (1) Operation on differential pressure of the drilling fluid, (2) On-Off Capability, (3) Patented unique gripping elements (4) High strength and flexibility, (5) Compatibility to existing Coiled Tubing drilling equipment and operations. The ability to power the MDT with drilling fluid results in a highly efficient tool that both delivers high level of force for the pressure available and inherently increases downhole reliability because parts are less subject to contamination. The On-Off feature is essential to drilling to allow the Driller to turn off the tractor and pull back while circulating in cleanout runs that keep the hole clean of drilling debris. The gripping elements have wide contact surfaces to the formation to allow high loads without damage to the formation. As part of the development materials evaluations were conducted to verify compatibility with anticipated drilling and well bore fluids. Experiments demonstrated that the materials of the tractor are essentially undamaged by exposure to typical drilling fluids used for horizontal coiled tubing drilling. The design for the MDT was completed, qualified vendors identified, parts procured, received, inspected, and a prototype was assembled. As part of the assembly process, WWT prepared Manufacturing instructions (MI) that detail the assembly process and identify quality assurance inspection points. Subsequent to assembly, functional tests were performed. Functional tests consisted of placing the MDT on jack stands, connecting a high pressure source to the tractor, and verifying On-Off functions, walking motion, and operation over a range of pressures. Next, the Shop Demonstration Test was performed. An existing WWT test fixture was modified to accommodate operation of the 3.38 inch diameter MDT. The fixture simulated the tension applied to a tractor while walking (pulling) inside 4.0 inch diameter pipe. The MDT demonstrated: (1) On-off function, (2) Pulling forces proportional to available differential pressure up to 4000 lbs, (3) Walking speeds to 1100 ft/hour. A field Demonstration of the MDT was arranged with a major oil company operating in Alaska. A demonstration well with a Measured Depth of approximately 15,000 ft was selected; however because of problems with the well drilling was stopped before the planned MDT usage. Alternatively, functional and operational tests were run with the MDT insi

Western Well Tool

2007-07-09T23:59:59.000Z

280

Development and evaluation of a meter for measuring return line fluid flow rates during drilling  

DOE Green Energy (OSTI)

The most costly problem routinely encountered in geothermal drilling is lost circulation, which occurs when drilling fluid is lost to the formation rather than circulating back to the surface. The successful and economical treatment of lost circulation requires the accurate measurement of drilling fluid flow rate both into and out of the well. This report documents the development of a meter for measuring drilling fluid outflow rates in the return line of a drilling rig. The meter employs a rolling counterbalanced float that rides on the surface of the fluid in the return line. The angle of the float pivot arm is sensed with a pendulum potentiometer, and the height of the float is calculated from this measurement. The float height is closely related to the fluid height and, therefore, the flow rate in the line. The prototype rolling float meter was extensively tested under laboratory conditions in the Wellbore Hydraulics Flow Facility; results from these tests were used in the design of the field prototype rolling float meter. The field prototype meter was tested under actual drilling conditions in August and September 1991 at the Long Valley Exploratory Well near Mammoth Lakes, Ca. In addition, the performance of several other commercially available inflow and outflow meters was evaluated in the field. The tested inflow meters included conventional pump stroke counters, rotary pump speed counters, magnetic flowmeters, and an ultrasonic Doppler flowmeter. On the return flow line, a standard paddlemeter, an acoustic level meter, and the prototype rolling float meter were evaluated for measuring drilling fluid outflow rates.

Loeppke, G.E.; Schafer, D.M.; Glowka, D.A.; Scott, D.D.; Wernig, M.D. (Sandia National Labs., Albuquerque, NM (United States)); Wright, E.K. (Ktech Corp., Albuquerque, NM (United States))

1992-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Deep Drilling Basic Research: Volume 5 - System Evaluations. Final Report, November 1988--August 1990  

Science Conference Proceedings (OSTI)

This project is aimed at decreasing the costs and increasing the efficiency of drilling gas wells in excess of 15,000 feet. This volume presents a summary of an evaluation of various drilling techniques. Drilling solutions were compared quantitatively against typical penetration rates derived from conventional systems. A qualitative analysis measured the impact of a proposed system on the drilling industry. The evaluations determined that the best candidates f o r improving the speed and efficiency of drilling deep gas wells include: PDC/TSD bits, slim-hole drilling, roller-cone bits, downhole motors, top-driven systems, and coiled-tubing drilling.

None

1990-06-01T23:59:59.000Z

282

Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology...  

Open Energy Info (EERE)

major contributor for electricity generation, namely: (1) reduce costs for drilling and well completion and (2) increase the volume of hot rock from which heat can be extracted....

283

Drill drive mechanism  

DOE Patents (OSTI)

A drill drive mechanism is especially adapted to provide both rotational drive and axial feed for a drill of substantial diameter such as may be used for drilling holes for roof bolts in mine shafts. The drill shaft is made with a helical pattern of scroll-like projections on its surface for removal of cuttings. The drill drive mechanism includes a plurality of sprockets carrying two chains of drive links which are arranged to interlock around the drill shaft with each drive link having depressions which mate with the scroll-like projections. As the chain links move upwardly or downwardly the surfaces of the depressions in the links mate with the scroll projections to move the shaft axially. Tangs on the drive links mate with notch surfaces between scroll projections to provide a means for rotating the shaft. Projections on the drive links mate together at the center to hold the drive links tightly around the drill shaft. The entire chain drive mechanism is rotated around the drill shaft axis by means of a hydraulic motor and gear drive to cause rotation of the drill shaft. This gear drive also connects with a differential gearset which is interconnected with a second gear. A second motor is connected to the spider shaft of the differential gearset to produce differential movement (speeds) at the output gears of the differential gearset. This differential in speed is utilized to drive said second gear at a speed different from the speed of said gear drive, this speed differential being utilized to drive said sprockets for axial movement of said drill shaft.

Dressel, Michael O. (Englewood, CO)

1979-01-01T23:59:59.000Z

284

Geothermal gradient drilling, north-central Cascades of Oregon, 1979  

DOE Green Energy (OSTI)

A geothermal gradient drilling program was conducted on the western flank of the north-central Cascade Mountains in Oregon. Six wells were drilled during this program, although in effect seven were drilled, as two wells were drilled at site 3, the second well, however, actually going to a lesser depth than the first. Three of the wells (3, 4, and 5) were drilled in areas which topographically are subject to strong throughflows of ground water. None of these wells reached the regional water table, and all showed essentially isothermal geothermal gradients. The single well which was started essentially at the water table (well 6) shows a linear temperature rise with depth essentially from the top of the well bore. Well No. 2 shows an isothermal gradient down to the level of the regional water table and then shows a linear gradient of about 70/sup 0/C/km from the regional water table to total depth.

Youngquist, W.

1980-01-01T23:59:59.000Z

285

Noble Drilling DRILLING, COMPLETION AND STIMULATION PROGRAM  

E-Print Network (OSTI)

Friendly Drilling Systems" Environmental issues are a significant part of every energy industry endeavor challenges facing the energy industry but also the considerable resources of the University and industry Petroleum and other industry sponsors from the Global Petroleum Research Institute (GPRI) to identify

286

Drilling Waste Management Technology Descriptions  

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

skip navigation Drilling Waste Management Information System: The information resource for better management of drilling wastes DWM Logo Search Search you are in this section...

287

Drilling Waste Management Information System  

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

The Drilling Waste Management Information System is an online resource for technical and regulatory information on practices for managing drilling muds and cuttings, including...

288

Challenges of deep drilling. Part 2  

SciTech Connect

This installment delineates current deep drilling technology limitations and discusses needed advances for the future. Problem areas are identified as material and seal problems in wellhead equipment, new fluid carriers for well stimulation, quality control/inspection/testing for equipment and performance flaws, arctic environment conditions, and experienced personnel. The main factors of operating environment that challenge advanced deep drilling are identified as temperature extremes, pressure extremes, acid gases, and deep-water presence.

Chadwick, C.E.

1981-08-01T23:59:59.000Z

289

Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared  

Open Energy Info (EERE)

Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy Abstract Infrared spectroscopy is particularly good at identifying awide variety of hydrothermally altered minerals with no samplepreparation, and is especially helpful in discrimination amongclay minerals. We have performed several promising pilot studieson geothermal drill core and cuttings that suggest the efficiencyof the technique to sample continuously and provide alterationlogs similar to geophysical logs. We have successfully identifiedlayered silicates, zeolites, opal, calcite, and iron oxides and

290

Target-rate Tracking for Shale-gas Multi-well Pads by Scheduled Shut-ins  

E-Print Network (OSTI)

Target-rate Tracking for Shale-gas Multi-well Pads by Scheduled Shut-ins Brage R. Knudsen Bjarne, Yorktown Heights, NY, USA. Abstract: The recent success of shale-gas production relies on drilling of long caused by water accumulation in the wells. Shale-gas recovery requires a large number of wells in order

Foss, Bjarne A.

291

Development and testing of underbalanced drilling products  

Science Conference Proceedings (OSTI)

The first objective of this project is to develop a user-friendly, PC, foam drilling computer model, FOAM, which will accurately predict frictional pressure drops, cuttings lifting velocity, foam quality, and other drilling variables. The model will allow operating and service companies to accurately predict pressures and flow rates required at the surface and downhole to efficiently drill oil and gas wells with foam systems. The second objective of this project is to develop a lightweight drilling fluid that utilizes hollow glass spheres to reduce the density of the fluid and allow drilling underbalanced in low-pressure reservoirs. Since the resulting fluid will be incompressible, hydraulics calculations are greatly simplified, and expensive air compressors and booster pumps are eliminated. This lightweight fluid will also eliminate corrosion and downhole fire problems encountered with aerated fluids. Many tight-gas reservoirs in the US are attractive targets for underbalanced drilling because they are located in hard-rock country where tight, low-permeability formations compound the effect of formation damage encountered with conventional drilling fluids.

Maurer, W.; Medley, G. Jr.

1995-07-01T23:59:59.000Z

292

Impedance-matched drilling telemetry system  

DOE Patents (OSTI)

A downhole telemetry system that uses inductance or capacitance as a mode through which signal is communicated across joints between assembled lengths of pipe wherein efficiency of signal propagation through a drill string, for example, over multiple successive pipe segments is enhanced through matching impedances associated with the various telemetry system components.

Normann, Randy A. (Edgewood, NM); Mansure, Arthur J. (Albuquerque, NM)

2008-04-22T23:59:59.000Z

293

U. S. Energy Information Administration | Drilling Productivity Report  

U.S. Energy Information Administration (EIA) Indexed Site

December 2013 December 2013 Explanatory notes Drilling Productivity Report The Drilling Productivity Report uses recent data on the total number of drilling rigs in operation along with estimates of drilling productivity and estimated changes in production from existing oil and natural gas wells to provide estimated changes in oil and natural gas production for six key fields. EIA's approach does not distinguish between oil-directed rigs and gas-directed rigs because once a well is completed it may produce both oil and gas; more than half of the wells do that. Monthly additions from one average rig Monthly additions from one average rig represent EIA's estimate of an average rig's

294

NEPA COMPLIANCE SURVEY Project Information Project Title: Liner Drilling Date:  

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

Liner Drilling Date: Liner Drilling Date: 4-5-10 DOE Code: 71092 Cont ractor Code: 8067-766 Project Lead: Frank Ingham Project Overview Nothing out of the ordinary for drilling an existing location 1. What are the environmental impacts? NE SW Sec 21 , T39N, R78W (45-3-X-21 well) 2. What is the legal location? 3. What is the duration of the project? Approximately a week 4 . What major equipment will be used if any (work over rig, drilling rig, Drilling Rig etc.)? Will Drill out of 9 5/8 caslng with liner drillng assembly. After drilling approximately 750 to 1000 ft, will test liner hanging assembly set and retrieve multiple times. The table b elow is to be completed by the Project Lead and reviewed by the Environmental Specialis t and the DOE NEPA Compliance Officer. NOTE: If Change of Scope occurs, Project Lead must submit a new NEPA Compliance Survey a

295

NETL: News Release - Carbon Fiber Drill Pipe Demonstrates Resiliency...  

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

lightweight drill pipe, made of space-age carbon fiber composites rather than traditional steel, is a step closer to becoming a major government-industry R&D success story. The...

296

Test report for core drilling ignitability testing  

DOE Green Energy (OSTI)

Testing was carried out with the cooperation of Westinghouse Hanford Company and the United States Bureau of Mines at the Pittsburgh Research Center in Pennsylvania under the Memorandum of Agreement 14- 09-0050-3666. Several core drilling equipment items, specifically those which can come in contact with flammable gasses while drilling into some waste tanks, were tested under conditions similar to actual field sampling conditions. Rotary drilling against steel and rock as well as drop testing of several different pieces of equipment in a flammable gas environment were the specific items addressed. The test items completed either caused no ignition of the gas mixture, or, after having hardware changes or drilling parameters modified, produced no ignition in repeat testing.

Witwer, K.S.

1996-08-08T23:59:59.000Z

297

U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry ...  

U.S. Energy Information Administration (EIA)

U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory and Developmental Wells (Thousand Feet)

298

Drill pipe protector development  

DOE Green Energy (OSTI)

The Geothermal Drilling Organization (GDO), formed in the early 1980s by the geothermal industry and the U.S. Department of Energy (DOE) Geothermal Division, sponsors specific development projects to advance the technologies used in geothermal exploration, drilling, and production phases. Individual GDO member companies can choose to participate in specific projects that are most beneficial to their industry segment. Sandia National Laboratories is the technical interface and contracting office for the DOE in these projects. Typical projects sponsored in the past have included a high temperature borehole televiewer, drill bits, muds/polymers, rotary head seals, and this project for drill pipe protectors. This report documents the development work of Regal International for high temperature geothermal pipe protectors.

Thomerson, C.; Kenne, R. [Regal International Corp., Corsicanna, TX (United States); Wemple, R.P. [Sandia National Lab., Albuquerque, NM (United States)] [ed.] [and others

1996-03-01T23:59:59.000Z

299

Thermal spallation drilling  

DOE Green Energy (OSTI)

Thermal spallation drilling is an underdeveloped process with great potential for reducing the costs of drilling holes and mining shafts and tunnels in most very hard rocks. Industry has used this process to drill blast holes for emplacing explosives and to quarry granite. Some theoretical work has been performed, and many signs point to a great future for this process. The Los Alamos National Laboratory has studied the theory of the spallation process and is conducting experiments to prove out the system and to adapt it for use with a conventional rotary rig. This report describes work that has been accomplished at the Laboratory on the development of thermal spallation drilling and some work that is projected for the future on the system. 3 references, 3 figures.

Williams, R.E.

1985-01-01T23:59:59.000Z

300

Subsurface drill string  

DOE Patents (OSTI)

A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male end having a non-threaded extension portion coaxial with the threaded portion, and the male end further having a bearing surface, the female end having a female threaded portion having corresponding female threads, the female end having a non-threaded extension portion coaxial with the female threaded portion, and the female end having a bearing surface. Installation methods, including methods of installing instrumented probes are also provided.

Casper, William L. (Rigby, ID); Clark, Don T. (Idaho Falls, ID); Grover, Blair K. (Idaho Falls, ID); Mathewson, Rodney O. (Idaho Falls, ID); Seymour, Craig A. (Idaho Falls, ID)

2008-10-07T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Update on slimhole drilling  

DOE Green Energy (OSTI)

Sandia National Laboratories manages the US Department of Energy program for slimhole drilling. The principal objective of this program is to expand proven geothermal reserves through increased exploration made possible by lower-cost slimhole drilling. For this to be a valid exploration method, however, it is necessary to demonstrate that slimholes yield enough data to evaluate a geothermal reservoir, and that is the focus of Sandia`s current research.

Finger, J.T.

1996-01-01T23:59:59.000Z

302

Deep drilling technology for hot crystalline rock  

SciTech Connect

The development of Hot Dry Rock (HDR) geothermal systems at the Fenton Hill, New Mexico site has required the drilling of four deep boreholes into hot, Precambrian granitic and metamorphic rocks. Thermal gradient holes, four observation wells 200 m (600 ft) deep, and an exploration core hole 800 m (2400 ft) deep guided the siting of the four deep boreholes. Results derived from the exploration core hole, GT-1 (Granite Test No. 1), were especially important in providing core from the granitic rock, and establishing the conductive thermal gradient and heat flow for the granitic basement rocks. Essential stratigraphic data and lost drilling-fluid zones were identified for the volcanic and sedimentary rocks above the contact with the crystalline basement. Using this information drilling strategies and well designs were then devised for the planning of the deeper wells. The four deep wells were drilled in pairs, the shallowest were planned and drilled to depths of 3 km in 1975 at a bottom-hole temperature of nearly 200/sup 0/C. These boreholes were followed by a pair of wells, completed in 1981, the deepest of which penetrated the Precambrian basement to a vertical depth of 4.39 km at a temperature of 320/sup 0/C.

Rowley, J.C.

1984-01-01T23:59:59.000Z

303

Drilling costs drop 7% in 1985  

SciTech Connect

Drilling costs dropped about 7% last year. This decline cancels a slight increase in 1984. Total costs to drill now run about 59% of the 1981 highs. Comparable figures for the previous 2 years are 63 and 61%. Deeper wells showed the biggest drops. Shallow well costs fell about 6%. Energy Information Administration (EIA) indexes drilling costs on a 1976 base year. Costs for shallow wells (5,000 ft or less) show an index about 138. Deeper wells have an index around 149. Cost declines were the greatest in West and North Texas and the Rockies, of 11%. The Northeast and Western areas showed greater than average declines, 9% or so. The High Plains, New Mexico, and Midcontinent areas recorded near the average 7% decline. Costs in South Louisiana, the Southeast, and Ark-La-Tex 2%. West Central Texas costs were off only 1%. The Southeast was essentially unchanged. Indexes by area show generally that drilling costs have declined since 1983. The summary here comes from EIA's ''Indexes and Estimates of Domestic Well Drilling Costs 1984 and 1985''. That report covers oil, gas, and dry hole costs, cost components, and overall costs.

Anderson, T.; Funk, V.

1986-03-24T23:59:59.000Z

304

Observation Wells | Open Energy Information  

Open Energy Info (EERE)

Observation Wells Observation Wells Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Observation Wells Details Activities (7) Areas (7) Regions (0) NEPA(15) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Development Drilling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Total dissolved solids, fluid pressure, flow rates, and flow direction Thermal: Monitors temperature of circulating fluids Dictionary.png Observation Wells: An observation well is used to monitor important hydrologic parameters in a geothermal system that can indicate performance, longevity, and transient processes. Other definitions:Wikipedia Reegle

305

Method for controlling directional drilling in response to horns detected by electromagnetic energy propagation resistivity measurements  

Science Conference Proceedings (OSTI)

For use in conjunction with an earth borehole drilling apparatus that includes: a drilling rig; a drill string operating from said drilling rig for drilling an earth borehole, said drill string including a bottom hole arrangement comprising a drill bit, a downhole resistivity measuring subsystem for measuring downhole formation resistivity near said bit by propagating electromagnetic energy into earth formations near said bit, receiving electromagnetic energy that has propagated through the formations and producing measurement signals that depend on the received signals; a method is described for directing the drilling of a well bore with respect to a geological bed boundary in said earth formations, comprising the steps of: producing from said measurement signals a recording of downhole formation resistivity as a function of borehole depth, determining the presence of a horn in said resistivity recording; and implementing a change in the drilling direction of said drill bit in response to said determination of the presence of a horn.

Luling, M.

1993-08-31T23:59:59.000Z

306

Fundamentals of horizontal well completions  

Science Conference Proceedings (OSTI)

Oil and gas wells are drilled horizontally for a variety of reasons, chiefly to improve production without drilling multiple vertical wells and to prevent water or gas coning. Benefits of horizontal drilling are well documented. This article addresses the fundamentals of completing a horizontal well, discussing completion by (1) open hole, (2) casing packers, (3) slotted or perforated liner, and (4) cemented casing/liner. Completion methods 1 through 3 are generally known as ''drain hole'' completions, and method 4 is commonly called the ''case hole'' or ''stimulated'' completion.

Austin, C.; Zimmerman, C.; Sullaway, B.; Sabins, F.

1988-05-01T23:59:59.000Z

307

Estimation of static formation temperatures in geothermal wells by using an artificial neural network approach  

Science Conference Proceedings (OSTI)

An artificial neural network (ANN) approach was used to develop a new predictive model for the calculation of static formation temperature (SFT) in geothermal wells. A three-layer ANN architecture was successfully trained using a geothermal borehole ... Keywords: Artificial intelligence, Borehole drilling, Bottom-hole temperature, Geothermal energy, Horner method, Levenberg-Marquardt algorithm, Shut-in time

A. Bassam; E. Santoyo; J. Andaverde; J. A. Hernández; O. M. Espinoza-Ojeda

2010-09-01T23:59:59.000Z

308

Sandia/DOE geothermal drilling and completion technology development program  

DOE Green Energy (OSTI)

The high cost of drilling and completing geothermal wells is an impediment to the development of geothermal energy resources. Technological deficiencies in rotary drilling techniques are evidenced when drilling geothermal wells. The Division of Geothermal Energy (DGE) of the US Department of Energy (DOE) has initiated a program aimed at developing new drilling and completion techniques for geothermal wells. The goals of this program are to reduce well costs 25% by 1982 and 50% by 1986. Sandia Laboratories has managed this technology development program since October 1977, and this paper presents an overview of the program. A statement of program goals and structure is given. The content of the FY-79 program is presented and recent results of R and D projects are given. Plans for development of an advanced drilling and completion system are discussed.

Barnette, J.H.

1979-01-01T23:59:59.000Z

309

EIA Drilling Productivity Report  

U.S. Energy Information Administration (EIA) Indexed Site

Drilling Productivity Report Drilling Productivity Report For Center on Global Energy Policy, Columbia University October 29, 2013 | New York, NY By Adam Sieminski, Administrator The U.S. has experienced a rapid increase in natural gas and oil production from shale and other tight resources Adam Sieminski, EIA Drilling Productivity Report October 29, 2013 2 0 5 10 15 20 25 30 35 2000 2002 2004 2006 2008 2010 2012 Rest of US Marcellus (PA and WV) Haynesville (LA and TX) Eagle Ford (TX) Bakken (ND) Woodford (OK) Fayetteville (AR) Barnett (TX) Antrim (MI, IN, and OH) 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 2000 2002 2004 2006 2008 2010 2012 Eagle Ford (TX) Bakken (MT & ND) Granite Wash (OK & TX) Bonespring (TX Permian) Wolfcamp (TX Permian) Spraberry (TX Permian) Niobrara-Codell (CO) Woodford (OK)

310

Mechanical drill string jar  

SciTech Connect

An improved mechanical drill string jar is described that allows uninhibited telescoping movement to the normal drilling condition. The drill string jar consists of: (a) an elongated, generally cylindrical, body usable as a drill string element; (b) axial motion resistance means situated in the annular opening; (c) bias means operatively associated with at least one element of the splined pair to rotate the pair out of alignment when the splined pair is rotationally disengaged; (d) opposed cooperating surfaces on at least two of the spline teeth situated such that forced axial relative motion of the splined pair will produce opposed radial forces on the teeth; (e) means intrinsic to at least one element of the splined pair to permit resisted radial displacement of the spline teeth when forced axial relative motion occurs, to permit one element to move axially through the other; (f) cam surfaces on at least one of the teeth situated to force rotational alignment of the splined pair when telescoping movement is from a jarring condition toward the normal drilling condition; (g) relative rotation resistance means situated in the annular opening, structurally engaged with the pair of telescoping members such that relative rotation therebetween will be resisted; (h) striker and anvil means situated in the annular opening, operatively associated with the telescoping pair of elements, such that axial relative movement therebetween will be solidly stopped at the axial extreme condition; (i) a flow-through fluid channel means extending between the means to attach to the continuing drill string; and (j) seal means situated in the annular opening, operatively associated with the telescoping pair of members, to provide fluid tightness therebetween.

Buck, D.A.

1987-08-25T23:59:59.000Z

311

Deepwater drilling riser system  

Science Conference Proceedings (OSTI)

The principal focus of this paper is to discuss and summarize, from the manufacturer's perspective, the primary milestones in the development of the marine riser system used to drill in record water depths off the U.S. east coast. This riser system is unique in that it used advanced designs, material technology, and quality control to enable safe operation in water depths beyond the capability of conventional drilling riser systems. Experience and research have led to design improvements that are now being incorporated in new riser systems that have the potential of expanding the frontiers to increasingly deeper water.

Chastain, T.; Stone, D.

1986-08-01T23:59:59.000Z

312

From: Development of New Types of Non-Damaging Drill-in and Completion Fluids  

E-Print Network (OSTI)

The goal of the project has been to develop new types of drill-in fluids (DIFs) and completion fluids (CFs) for use in natural gas reservoirs. Phase 1 of the project was a 24month study to develop the concept of advanced type of fluids usable in well completions. Phase 1 tested this concept and created a kinetic mathematical model to accurately track the fluid’s behavior under downhole conditions. Phase 2 includes tests of the new materials and practices. Work includes the preparation of new materials and the deployment of the new fluids and new practices to the field. This is the final report on a program that has been operating for 7 years, including the last four years under the sponsorship of the U.S. DOE. Accomplishments of Research Program The project addresses the special problem of formation damage issues related to the use of CFs and DIFs in open hole horizontal well completions. The concept of a “removable filtercake ” has, as its basis, a mechanism to initiate or trigger the removal process. Our approach to developing such a mechanism is to identify the components of the filtercake and measure the change in the characteristics of these components when certain cleanup (filtercake removal) techniques are employed. The program has been an unqualified success. We have accomplished the following: Development of New Laboratory Testing Practices Established standard testing practices Identification of key factors involved in formation damage Established appropriate cleanup practices for removal of formation damage to optimize productivity. DE26-98FT34174.000 Development of New Drilling Fluids Established New Guidelines for horizontal well completion practices Drill in fluid design and maintenance Cleanup fluid design and use Development of new well drill in fluids Low solids polymer carbonate DIFs Polymer free high density DIFs Low Density Drill in fluid design

David B. Burnett Harold Vance

2003-01-01T23:59:59.000Z

313

Technology assessment of vertical and horizontal air drilling potential in the United States. Final report  

SciTech Connect

The objective of the research was to assess the potential for vertical, directional and horizontal air drilling in the United States and to evaluate the current technology used in air drilling. To accomplish the task, the continental United States was divided into drilling regions and provinces. The map in Appendix A shows the divisions. Air drilling data were accumulated for as many provinces as possible. The data were used to define the potential problems associated with air drilling, to determine the limitations of air drilling and to analyze the relative economics of drilling with air versus drilling mud. While gathering the drilling data, operators, drilling contractors, air drilling contractors, and service companies were contacted. Their opinion as to the advantages and limitations of air drilling were discussed. Each was specifically asked if they thought air drilling could be expanded within the continental United States and where that expansion could take place. The well data were collected and placed in a data base. Over 165 records were collected. Once in the data base, the information was analyzed to determine the economics of air drilling and to determine the limiting factors associated with air drilling.

Carden, R.S.

1993-08-18T23:59:59.000Z

314

Compendium of regulatory requirements governing underground injection of drilling waste.  

Science Conference Proceedings (OSTI)

Large quantities of waste are produced when oil and gas wells are drilled. The two primary types of drilling wastes include used drilling fluids (commonly referred to as muds), which serve a variety of functions when wells are drilled, and drill cuttings (rock particles ground up by the drill bit). Some oil-based and synthetic-based muds are recycled; other such muds, however, and nearly all water-based muds, are disposed of. Numerous methods are employed to manage drilling wastes, including burial of drilling pit contents, land spreading, thermal processes, bioremediation, treatment and reuse, and several types of injection processes. This report provides a comprehensive compendium of the regulatory requirements governing the injection processes used for disposing of drilling wastes; in particular, for a process referred to in this report as slurry injection. The report consists of a narrative discussion of the regulatory requirements and practices for each of the oil- and gas-producing states, a table summarizing the types of injection processes authorized in each state, and an appendix that contains the text of many of the relevant state regulations and policies. The material included in the report was derived primarily from a review of state regulations and from interviews with state oil and gas regulatory officials.

Puder, M. G.; Bryson, B.; Veil, J. A.

2002-11-08T23:59:59.000Z

315

Combination drilling and skiving tool  

DOE Patents (OSTI)

A combination drilling and skiving tool including a longitudinally extending hollow skiving sleeve slidably and concentrically mounted on a right-handed twist drill. Dogs or pawls provided on the internal periphery of the skiving sleeve engage with the helical grooves of the drill. During a clockwise rotation of the tool, the drill moves downwardly and the sleeve translates upwardly, so that the drill performs a drilling operation on a workpiece. On the other hand, the drill moves upwardly and the sleeve translates downwardly, when the tool is rotated in a counter-clockwise direction, and the sleeve performs a skiving operation. The drilling and skiving operations are separate, independent and exclusive of each other.

Stone, William J. (Kansas City, MO)

1989-01-01T23:59:59.000Z

316

Microhole Wireless Steering While Drilling System  

SciTech Connect

A background to Coiled Tubing Bottom Hole Assemblies (CT-BHA) is given, and the development of a bi-directional communications and power module (BCPM)component is described. The successful operation of this component in both the laboratory and field environment is described. The primary conclusion of this development is that the BCPM component operates as anticipated within the CT-BHA, and significantly extends the possibility of drilling with coiled tubing in the microhole environment.

John Macpherson; Thomas Gregg

2007-12-31T23:59:59.000Z

317

Drilling of a 2000-metre (6562-FT) Borehole for Geothermal Steam in Iceland  

DOE Green Energy (OSTI)

Drilling for geothermal heat has been carried out in Iceland since 1928, when hot water was obtained for district heating in Reykjavik. From that time, in particular in the sixties, extensive drilling has resulted in the annual utilization of 54 million tons of water and 2 million tons of steam. Five drilling rigs are used for geothermal drilling, with depth capacity ranging from 400 to 3,600 meters (1,312 to 11,812 feet). Drilling procedures vary extensively and depend on whether a high- or low-temperature field is being drilled, the main difference being the well-casing program and the blowout equipment used.

Ragnars, K.; Benediktsson, S.

1981-01-01T23:59:59.000Z

318

Fraced horizontal well shows potential of deep tight gas  

SciTech Connect

Successful completion of a multiple fraced, deep horizontal well demonstrated new techniques for producing tight gas sands. In Northwest Germany, Mobil Erdgas-Erdoel GmbH drilled, cased, and fraced the world`s deepest horizontal well in the ultra-tight Rotliegendes ``Main`` sand at 15,687 ft (4,783 m) true vertical depth. The multiple frac concept provides a cost-efficient method to economically produce significant gas resources in the ultra-tight Rotliegendes ``Main`` sand. Besides the satisfactory initial gas production rate, the well established several world records, including deepest horizontal well with multiple fracs, and proved this new technique to develop ultra-tight sands.

Schueler, S. [Mobil Erdgas-Erdoel GmbH, Celle (Germany); Santos, R. [Mobil Erdgas-Erdoel GmbH, Hamburg (Germany)

1996-01-08T23:59:59.000Z

319

Forecast of geothermal-drilling activity  

DOE Green Energy (OSTI)

The number of geothermal wells that will be drilled to support electric power production in the United States through 2000 A.D. are forecasted. Results of the forecast are presented by 5-year periods for the five most significant geothermal resources.

Mansure, A.J.; Brown, G.L.

1982-07-01T23:59:59.000Z

320

Packer weighted and pressure differential method and apparatus for big hole drilling  

Science Conference Proceedings (OSTI)

A packer and pressure differential drilling tool and method of controlled pressure balanced drilling in Big Hole well bores and shafts, characterized by a large diameter packer slideably engaged with the well bore over a drill bit and through which a dual drill pipe operates and isolates drilling fluid from a hydrostatic head of fluid standing in the well bore surrounding the dual drill pipe, the packer functioning as a non-rotatable ram slideable down the well bore and supporting said hydrostatic head and applying the weight thereof to the drill bit through anti-friction bearings, cuttings being flushed through the dual drill pipe by means of aerated drilling fluid or by an upwardly disposed jet pump, or both, so as to establish a reduced and/or underbalanced condition at the bit-to-bore bottom interface and operating the drill bit at an increased rate of penetration while maintaining a higher pressure condition in the well bore above the packer, the packer being weight set or hydraulic set, and the jet pump being centered in the dual drill pipe or disposed in the annulus of the dual drill pipe.

Hooper, D. W.

1985-08-13T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Drilling in 2000 taps technology explosion  

Science Conference Proceedings (OSTI)

While major oil and gas companies all but ended research and development programs, the burden for technological advancement fell to service companies. And service companies allotted their R and D investment to activities whose return they could fairly predict. But even as cost-cutting measured devastated engineering staffs, a profit-growth strategy was forming that understood that profit could be enhanced by not just cutting the per barrel cost to producers but by producing more barrels per investment dollar. In other words, get more oil and gas from the same well through applied drilling and production technology. In the drilling industry all things technical revolve around six areas of expertise: bits, rotation systems, tripping systems, control systems, information systems and direction drilling systems. The paper discusses these six technologies.

NONE

1996-09-01T23:59:59.000Z

322

Horizontal drilling in shallow, geologically complex reservoirs  

Science Conference Proceedings (OSTI)

The objective of this project is to test the concept that multiple hydraulic fracturing from a directionally-drilled horizontal well, using the medium radius build rate method, can increase gas production sufficiently to justify economic viability over conventional stimulated vertical wells. The test well is located in Yuma County, Colorado, in a favorable area of established production to avoid exploration risks. This report presents: background information; project description which covers location selection/geologic considerations; and preliminary work plan. (AT)

Venable, S.D.

1992-01-01T23:59:59.000Z

323

Horizontal drilling in shallow, geologically complex reservoirs  

Science Conference Proceedings (OSTI)

The objective of this project is to test the concept that multiple hydraulic fracturing from a directionally-drilled horizontal well, using the medium radius build rate method, can increase gas production sufficiently to justify economic viability over conventional stimulated vertical wells. The test well is located in Yuma County, Colorado, in a favorable area of established production to avoid exploration risks. This report presents: background information; project description which covers location selection/geologic considerations; and preliminary work plan. (AT)

Venable, S.D.

1992-10-01T23:59:59.000Z

324

Drilling Waste Management Fact Sheet: Offsite Disposal at Commercial  

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

Commercial Disposal Facilities Commercial Disposal Facilities Fact Sheet - Commercial Disposal Facilities Although drilling wastes from many onshore wells are managed at the well site, some wastes cannot be managed onsite. Likewise, some types of offshore drilling wastes cannot be discharged, so they are either injected underground at the platform (not yet common in the United States) or are hauled back to shore for disposal. According to an American Petroleum Institute waste survey, the exploration and production segment of the U.S. oil and gas industry generated more than 360 million barrels (bbl) of drilling wastes in 1985. The report estimates that 28% of drilling wastes are sent to offsite commercial facilities for disposal (Wakim 1987). A similar American Petroleum Institute study conducted ten years later found that the volume of drilling waste had declined substantially to about 150 million bbl.

325

Development Drilling | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Development Drilling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Development Drilling Details Activities (1) Areas (1) Regions (0) NEPA(9) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Drilling Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates

326

Exploration Drilling | Open Energy Information  

Open Energy Info (EERE)

Exploration Drilling Exploration Drilling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Exploration Drilling Details Activities (0) Areas (0) Regions (0) NEPA(15) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Exploration Drilling‎ Parent Exploration Technique: Drilling Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates Thermal: -Temperatures can be measured within the hole

327

Cost effectiveness of sonic drilling  

SciTech Connect

Sonic drilling (combination of mechanical vibrations and rotary power) is an innovative environmental technology being developed in cooperation with DOE`s Arid-Site Volatile Organic Compounds Integrated Demonstration at Hanford and the Mixed Waste Landfill Integrated Demonstration at Sandia. This report studies the cost effectiveness of sonic drilling compared with cable-tool and mud rotary drilling. Benefit of sonic drilling is its ability to drill in all types of formations without introducing a circulating medium, thus producing little secondary waste at hazardous sites. Progress has been made in addressing the early problems of failures and downtime.

Masten, D.; Booth, S.R.

1996-03-01T23:59:59.000Z

328

Completion report: Raft River Geothermal Production Well Five (RRGP-5)  

DOE Green Energy (OSTI)

The Raft River Geothermal Production Well Five (RRGP-5) is a production well in the Raft River KGRA (Known Geothermal Resource Area). The plan for this well included three barefoot legs. Due to technical and funding problems, two legs were drilled; only one leg is a producing leg. This report describes the entire drilling operation and includes daily drilling reports, drill bit records, casing records, and descriptions of cementing, logging, coring, and containment techniques.

Miller, L.G.; Prestwich, S.M.

1979-02-01T23:59:59.000Z

329

Sound Coiled-Tubing Drilling Practices  

Science Conference Proceedings (OSTI)

This Coiled-Tubing Drilling (CTD) Sound Practices Manual provides tools needed by CTD engineers and supervisors to plan, design and perform safe, successful CTD operations. As emphasized throughout, both careful planning and attention to detail are mandatory for success. A bibliography of many useful CTD references is presented in Chapter 6. This manual is organized according to three processes: 1) Pre-Job Planning Process, 2) Operations Execution Process, and 3) Post-Job Review Process. Each is discussed in a logical and sequential format.

Williams, Thomas; Deskins, Greg (Maurer Technology Inc.); Ward, Stephen L. (Advantage Energy Services Ltd); Hightower, Mel

2001-09-30T23:59:59.000Z

330

Laser Drilling - Drilling with the Power of Light  

Science Conference Proceedings (OSTI)

Gas Technology Institute (GTI) has been the leading investigator in the field of high power laser applications research for well construction and completion applications. Since 1997, GTI (then as Gas Research Institute) has investigated several military and industrial laser systems and their ability to cut and drill into reservoir type rocks. In this report, GTI continues its investigation with a recently acquired 5.34 kW ytterbium-doped multi-clad high power fiber laser (HPFL). The HPFL represents a potentially disruptive technology that, when compared to its competitors, is more cost effective to operate, capable of remote operations, and requires considerably less maintenance and repair. To determine how this promising laser compares with other lasers used in past experimental work, GTI performed a number of experiments with results directly comparable to previous data. Experiments were designed to investigate the effect of laser input parameters on representative reservoir rock types of sandstone and limestone. The focus of the experiments was on completion and perforation applications, although the results and techniques apply to well construction and other rock cutting applications. Variables investigated include laser power, beam intensity, external purging of cut materials, sample orientation, beam duration, beam shape, and beam frequency. The investigation also studied the thermal effects on the two sample rock types and their methods of destruction: spallation for sandstone, and thermal dissociation for limestone. Optimal operating conditions were identified for each rock type and condition. As a result of this experimental work, the HPFL has demonstrated a better capability of cutting and drilling limestone and sandstone when compared with other military and industrial lasers previously tested. Consideration should be given to the HPFL as the leading candidate for near term remote high power laser applications for well construction and completion.

Brian C. Gahan; Samih Batarseh

2004-09-28T23:59:59.000Z

331

The Role of Isotopes in Monitoring Water Quality Impacts Associated with Shale Gas Drilling  

E-Print Network (OSTI)

The Role of Isotopes in Monitoring Water Quality Impacts Associated with Shale Gas Drilling Methane, including shale gas drilling. Monitoring techniques exist for detecting methane and, in some cases detail within the context of shale gas drilling activities in New York, as well as their uses

Wang, Z. Jane

332

Single-Well and Cross-Well Seismic At Salt Wells Area (Bureau...  

Open Energy Info (EERE)

temperature gradient holes (86-15 O on Pad 1 and 17-16 O on Pad 3); conducted seismic, gravity and magnetotelluric surveys; and drilled deep exploration wells at Pads 6 and 8 and...

333

Evaluation of slurry injection technology for management of drilling wastes.  

Science Conference Proceedings (OSTI)

Each year, thousands of new oil and gas wells are drilled in the United States and around the world. The drilling process generates millions of barrels of drilling waste each year, primarily used drilling fluids (also known as muds) and drill cuttings. The drilling wastes from most onshore U.S. wells are disposed of by removing the liquids from the drilling or reserve pits and then burying the remaining solids in place (called pit burial). This practice has low cost and the approval of most regulatory agencies. However, there are some environmental settings in which pit burial is not allowed, such as areas with high water tables. In the U.S. offshore environment, many water-based and synthetic-based muds and cuttings can be discharged to the ocean if discharge permit requirements are met, but oil-based muds cannot be discharged at all. At some offshore facilities, drilling wastes must be either hauled back to shore for disposal or disposed of onsite through an injection process.

Veil, J. A.; Dusseault, M. B.

2003-02-19T23:59:59.000Z

334

Geothermal drilling ad completion technology development program. Semi-annual progress report, April-September 1979  

DOE Green Energy (OSTI)

The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, and completion technology. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1982 and by 50% by 1986.

Varnado, S.G. (ed.)

1980-05-01T23:59:59.000Z

335

Geothermal drilling and completion technology development program. Quarterly progress report, January-March 1980  

DOE Green Energy (OSTI)

The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, completion technology, and lost circulation control methods. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1983 and by 50% by 1987.

Varnado, S.G. (ed.)

1980-04-01T23:59:59.000Z

336

Geothermal drilling and completion technology development program. Annual progress report, October 1979-September 1980  

DOE Green Energy (OSTI)

The progress, status, and results of ongoing research and development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, completion technology, and lost circulation control methods. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1983 and by 50% by 1987.

Varnado, S.G. (ed.)

1980-11-01T23:59:59.000Z

337

Horizontal drilling in the Lower Glen Rose Formation, Maverick County, Texas  

Science Conference Proceedings (OSTI)

This paper presents preliminary results of a project to assess the economic viability of horizontal drilling in the Lower Glen Rose Formation of Maverick County, Texas. This project is part of an ongoing Department of Energy investigation of directional drilling in the development of gas resources within the United States. The paper includes: project description; results covering geologic setting, reservoir engineering, and seismic surveys; and future work on drilling location selection, drilling, and well completion. (AT)

Drimal, C.E.; Muncey, G.

1992-01-01T23:59:59.000Z

338

Horizontal drilling in the Lower Glen Rose Formation, Maverick County, Texas  

Science Conference Proceedings (OSTI)

This paper presents preliminary results of a project to assess the economic viability of horizontal drilling in the Lower Glen Rose Formation of Maverick County, Texas. This project is part of an ongoing Department of Energy investigation of directional drilling in the development of gas resources within the United States. The paper includes: project description; results covering geologic setting, reservoir engineering, and seismic surveys; and future work on drilling location selection, drilling, and well completion. (AT)

Drimal, C.E.; Muncey, G.

1992-10-01T23:59:59.000Z

339

Geothermal drilling and completion technology development program. Quarterly progress report, April-June 1980  

DOE Green Energy (OSTI)

The progress, status, and results of ongoing research and development (R and D) within the Geothermal Drilling and Completion Technology Development Program are reported. The program emphasizes the development of geothermal drilling hardware, drilling fluids, completion technology, and lost circulation control methods. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1983 and by 50% by 1987.

Varnado, S.G.

1980-07-01T23:59:59.000Z

340

Geothermal drilling and completion technology development program. Semi-annual progress report, October 1978-March 1979  

DOE Green Energy (OSTI)

The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drill bits, drilling fluids, and completion technology. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1982 and by 50% by 1986.

Varnado, S.G. (ed.)

1979-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Geothermal drilling and completion technology development program. Quarterly progress report, October-December 1979  

DOE Green Energy (OSTI)

The progress, status, and results of ongoing Research and Development (R and D) within the Geothermal Drilling and Completion Technology Development Program are described. The program emphasizes the development of geothermal drilling hardware, drilling fluids, and completion technology. Advanced drilling systems are also under development. The goals of the program are to develop the technology required to reduce well costs by 25% by 1982 and by 50% by 1986.

Varnado, S.G. (ed.)

1980-01-01T23:59:59.000Z

342

U.S. Average Depth of Dry Exploratory and Developmental Wells...  

Annual Energy Outlook 2012 (EIA)

Exploratory and Developmental Wells Drilled (Feet per Well) U.S. Average Depth of Dry Exploratory and Developmental Wells Drilled (Feet per Well) Decade Year-0 Year-1 Year-2 Year-3...

343

Application of high powered lasers to drilling and completing deep walls.  

SciTech Connect

High powered laser rock drilling was studied as a revolutionary method for drilling and completing deep gas and oil wells. The objectives of this 2002 to 2003 fiscal year research were to study the concept that large diameter holes can be created by multiple overlapping small beam spots, to determine the ability of lasers to drill rock submerged to some depth in water, to demonstrate the possibilities of lasers for perforating application, and to determine the wavelength effects on rock removal. Laser technology applied to well drilling and completion operations is attractive because it has the potential to reduce drilling time, create a ceramic lining that may eliminate the need for steel casing, provide additional monitor-on-drilling laser sensors and improve well performance through improved perforation. The results from this research will help engineering design on a laser-based well drilling system.

Reed, C. B.; Xu, Z.; Parker, R. A.; Gahan, B. C.; Batarseh, S.; Graves, R. M.; Figueroa, H.; Deeg, W.

2003-07-30T23:59:59.000Z

344

Drill bit assembly for releasably retaining a drill bit cutter  

DOE Patents (OSTI)

A drill bit assembly is provided for releasably retaining a polycrystalline diamond compact drill bit cutter. Two adjacent cavities formed in a drill bit body house, respectively, the disc-shaped drill bit cutter and a wedge-shaped cutter lock element with a removable fastener. The cutter lock element engages one flat surface of the cutter to retain the cutter in its cavity. The drill bit assembly thus enables the cutter to be locked against axial and/or rotational movement while still providing for easy removal of a worn or damaged cutter. The ability to adjust and replace cutters in the field reduces the effect of wear, helps maintains performance and improves drilling efficiency.

Glowka, David A. (Austin, TX); Raymond, David W. (Edgewood, NM)

2002-01-01T23:59:59.000Z

345

Evaluation of high-pressure drilling fluid supply systems  

DOE Green Energy (OSTI)

A study was undertaken to help determine the technical and economic feasibility of developing a high-pressure fluid-jet drilling system for the production of geothermal wells. Three system concepts were developed and analyzed in terms of costs, component availability, and required new-component development. These concepts included a single-conduit system that supplies the downhole cutting nozzles directly via surface-located high-pressure pumps; a single-conduit system utilizing low-pressure surface pumps to supply and operate a high-pressure downhole pump, which in turn supplies the cutting nozzles; and a dual-conduit system supplying surface-generated high-pressure fluid for cutting via one conduit and low-pressure scavenging fluid via the other. It is concluded that the single-conduit downhole pump system concept has the greatest potential for success in this application. 28 figures, 11 tables.

McDonald, M.C.; Reichman, J.M.; Theimer, K.J.

1981-10-01T23:59:59.000Z

346

Borehole measurements while drilling: systems and activities  

DOE Green Energy (OSTI)

Attention is focused on all potential methods of drilling safer and cheaper. Real time data from the bit offers the greatest potential for meeting these needs. As a result, numerous companies are actively competing to develop this oil field service capability and to capture a world wide market. Two basic categories of service are sought. The first, and highest priority, is drilling safety and efficiency; the second is real-time logging, or formation evaluation. This study addresses the types of systems being studied, describes company activity and projects underway, estimates the practical potential for success and considers the commercial market for successful systems. The need for research data on bit hydraulics and drill string dynamics, special deep, hot or sour gas situations and other relatively unusual requirements may become exceptions to the general conclusions that are drawn. Historical and present activity are documented through presenting the results of extensive literature and patent researches. A breakdown is presented of activity by company along with names and addresses for further contact.

McDonald, W.J.

1977-06-01T23:59:59.000Z

347

Feasibility of Supercritical Carbon Dioxide as a Drilling Fluid for Deep Underbalanced Drilling Operations.  

E-Print Network (OSTI)

??Feasibility of drilling with supercritical carbon dioxide to serve the needs of deep underbalanced drilling operations has been analyzed. A case study involving underbalanced drilling… (more)

Gupta, Anamika

2006-01-01T23:59:59.000Z

348

Slimhole Drilling, Logging, and Completion Technology - An Update  

DOE Green Energy (OSTI)

Using slim holes (diameter < 15 cm) for geothermal exploration and small-scale power production can produce significant cost savings compared to conventional rotary-drilling methods. In addition, data obtained from slim holes can be used to lower the risks and costs associated with the drilling and completion of large-diameter geothermal wells. As a prime contractor to the U.S. Department of Energy (DOE), Sandia National Laboratories has worked with industry since 1992 to develop and promote drilling, testing, and logging technology for slim holes. This paper describes the current status of work done both in-house and contracted to industry. It focuses on drilling technology, case histories of slimhole drilling projects, data collection and rig instrumentation, and high-temperature logging tools.

FINGER,JOHN T.; JACOBSON,RONALD D.

1999-10-07T23:59:59.000Z

349

Pad drilling and rig mobility lead to more efficient drilling ...  

U.S. Energy Information Administration (EIA)

Biofuels: Ethanol & Biodiesel ... Pad drilling allows producers to target a significant area of underground resources while minimizing impact on the surface.

350

Laser Rock Drilling Demo - The NE Multimedia Collection  

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

Demo A high power pulsed Nd:YAG laser beam at Argonne's Laser Applications Lab is being shown in this movie to drill oil reservoir rock, a potential application in gas and oil well...

351

Step-out Well | Open Energy Information  

Open Energy Info (EERE)

Step-out Well Step-out Well Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Step-out Well Details Activities (5) Areas (5) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Exploration Drilling Parent Exploration Technique: Exploration Drilling Information Provided by Technique Lithology: Drill cuttings are analyzed to determine lithology and mineralogy Stratigraphic/Structural: Fractures, faults, and geologic formations that the well passes through are identified and mapped Hydrological: Identify aquifers, reservoir boundaries, flow rates, fluid pressure, and chemistry Thermal: Direct temperature measurements from within the reservoir Dictionary.png Step-out Well: A well drilled outside of the proven reservoir boundaries to investigate a

352

INVITATIONAL WELL-TESTING SYMPOSIUM PROCEEDINGS  

E-Print Network (OSTI)

Schlumberger Tube: For Oil-Well Logging", Nucleonics, No.W. E. : "An Investigation of Oil Well Cementing," Drill. andon Pressure Buildup in Oil Wells," Trans. , AIME (1958),213,

Authors, Various

2011-01-01T23:59:59.000Z

353

DOE Lab Receives Award for Work on Drilling Technology | Department of  

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

DOE Lab Receives Award for Work on Drilling Technology DOE Lab Receives Award for Work on Drilling Technology DOE Lab Receives Award for Work on Drilling Technology June 13, 2013 - 11:52am Addthis DOE Lab Receives Award for Work on Drilling Technology Directional drilling - the drilling of non-vertical wells that helped make the development of shale gas possible -- will continue to play a key role in energy development, and so will the technologies that make it possible. The benefits of directional drilling are tremendous. Think cleaner, cheaper electricity; local economy booms; and decreased dependence on foreign energy. The unconventional oil and gas resources that can be tapped through directional drilling benefit consumers, businesses, and even the transportation sector. So being recognized as an innovator in this area is

354

Energy week `96: Conference papers. Book 3: Drilling and production economics  

Science Conference Proceedings (OSTI)

The papers of Section 1, Drilling Technology, relate to advanced materials for downhole tools, underbalanced drilling, horizontal drilling technology/new trajectory control device, horizontal drilling HP/HT well control, advances in drill bits, slim-hole drill bits and tubulars, novel/scientific drilling, and coiled tubing/slim-hole drilling/short radius. The topics of Section 2, Ocean Engineering, include marine pollution and diving equipment. Section 3, Petroleum Production Technology, relate to what`s new in regulations and standards in petroleum production. Papers in Section 4, Offshore and Arctic Operations, cover offshore platforms, floating production systems, offshore pipelines, offshore construction and installation, offshore facilities, and environmental and safety issues. Most papers have been processed separately for inclusion on the data base.

NONE

1996-09-01T23:59:59.000Z

355

Apparatus in a drill string  

DOE Patents (OSTI)

An apparatus in a drill string comprises an internally upset drill pipe. The drill pipe comprises a first end, a second end, and an elongate tube intermediate the first and second ends. The elongate tube and the ends comprising a continuous an inside surface with a plurality of diameters. A conformable spirally welded metal tube is disposed within the drill pipe intermediate the ends thereof and terminating adjacent to the ends of the drill pipe. The conformable metal tube substantially conforms to the continuous inside surface of the metal tube. The metal tube may comprise a non-uniform section which is expanded to conform to the inside surface of the drill pipe. The non-uniform section may comprise protrusions selected from the group consisting of convolutions, corrugations, flutes, and dimples. The non-uniform section extends generally longitudinally along the length of the tube.

Hall, David R. (Provo, UT); Dahlgren, Scott (Alpine, UT); Hall, Jr., Tracy H. (Provo, UT); Fox, Joe (Lehi, UT); Pixton, David S. (Provo, UT)

2007-07-17T23:59:59.000Z

356

Drill string gas data  

DOE Green Energy (OSTI)

Data and supporting documentation were compiled and analyzed for 26 cases of gas grab samples taken during waste-tank core sampling activities between September 1, 1995 and December 31, 1997. These cases were tested against specific criteria to reduce uncertainties associated with in-tank sampling location and conditions. Of the 26 possible cases, 16 qualified as drill-string grab samples most likely to represent recently released waste gases. The data from these 16 ``confirmed`` cases were adjusted to remove non-waste gas contributions from core-sampling activities (argon or nitrogen purge), the atmospheric background, and laboratory sampler preparation (helium). The procedure for subtracting atmospheric, laboratory, and argon purge gases was unambiguous. No reliable method for determining the exact amount of nitrogen purge gas was established. Thus, the final set of ``Adjusted`` drill string gas data for the 6 nitrogen-purged cases had a greater degree of uncertainty than the final results for the 10 argon-purged cases. Including the appropriate amounts of uncertainty, this final set of data was added to the set of high-quality results from the Retained Gas Sampler (RGS), and good agreement was found for the N{sub 2}, H{sub 2}, and N{sub 2}O mole fractions sampled from common tanks. These results indicate that under favorable sampling conditions, Drill-String (DS) grab samples can provide reasonably accurate information about the dominant species of released gas. One conclusion from this set of total gas data is that the distribution of the H{sub 2} mole fractions is bimodal in shape, with an upper bound of 78%.

Siciliano, E.R.

1998-05-12T23:59:59.000Z

357

Historical Exploration And Drilling Data From Geothermal Prospects And  

Open Energy Info (EERE)

Exploration And Drilling Data From Geothermal Prospects And Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Historical Exploration And Drilling Data From Geothermal Prospects And Power Generation Projects In The Western United States Details Activities (20) Areas (7) Regions (0) Abstract: In 2005, Idaho National Laboratory was conducting a study of historical exploration practices and success rates for geothermal resources identification. Geo Hills Associates (GHA) was contracted to review and accumulate copies of published literature, Internet information, and unpublished geothermal exploration data to determine the level of exploration and drilling activities that occurred for all of the currently

358

Rotating preventers; Technology for better well control  

Science Conference Proceedings (OSTI)

This paper reports that recent changes in the oil and gas industry and ongoing developments in horizontal and underbalanced drilling necessitated development of a better rotating head. A new device called the rotating blowout preventer (RBOP) was developed by Seal-Tech. It is designed to replace the conventional rotating control head on top of BOP stacks and allows drilling operations to continue even on live (underbalanced) wells. Its low wear characteristics and high working pressure (1,500 psi) allow drilling rig crews to drill safely in slightly underbalanced conditions or handle severe well control problems during the time required to actuate other BOPs in the stack. Drilling with a RBOP allows wellbores to be completely closed in tat the drill floor rather than open as with conventional BOPs.

Tangedahl, M.J.; Stone, C.R. (Signa Engineering Corp. (United States))

1992-10-01T23:59:59.000Z

359

Drilling Systems | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Drilling Systems Jump to: navigation, search Contents 1 Geothermal Lab Call Projects for Drilling Systems 2 Geothermal ARRA Funded Projects for Drilling Systems Geothermal Lab Call Projects for Drilling Systems Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

360

Managing pressure during underbalanced drilling.  

E-Print Network (OSTI)

?? AbstractUnderbalanced drilling has received more and more attention in recent years. The reason for that may be because many oil fields, especially on the… (more)

Råen, Jostein

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Assessment of Injection Well Construction and Operation for Water Injection Wells and Salt Water Disposal Wells  

E-Print Network (OSTI)

Assessment of Injection Well Construction and Operation for Water Injection Wells and Salt Water Disposal Wells in the Nine Township Area ­ 2009 September 2009 Prepared by Delaware Basin Drilling from EPA to DOE dated 7/16/2009) 1 Solution Mining Practices 1 Recent Well Failures 2 The Mechanism

362

Practical applications of a drilling data center  

SciTech Connect

Tenneco Oil is using a real-time drilling-data acquisition, telemetry, data base, and applications-program system for Gulf of Mexico operations. The system provides for data acquisition in real time from commercially available logging units. The data are transmitted into a central office onshore via microwave or satellite telemetry links. Up to 352 drilling parameters are transmitted from each computerized logging unit and archived in the data base every 20 sec. Parameters can include measurement-while-drilling (MWD) data as well as mud-logging data. Applications programs utilizing these parameters are available in the central site data center (CSDC) and in locations throughout Tenneco's facilities in Lafayette, La. Access to the CSDC and its computing power is also available on the offshore rig. Backup surveillance of critical drilling parameters is provided through alarms and continuous monitoring of the parameters, thus providing for a safer operation. Rig efficiency has also been improved through analysis of the data and comparison of the data between various rig operations and rigs. Both tangible and intangible cost savings are discussed.

Graff, R.L.; Segrest, R.P.

1986-05-19T23:59:59.000Z

363

Performance Comparison of Large Diameter Residential Drinking Water Wells.  

E-Print Network (OSTI)

??Published scientific work indicates that residential large diameter drinking water wells are at a higher risk of contamination from surface water impacts than drilled wells.… (more)

Javor, Paul

2010-01-01T23:59:59.000Z

364

Kick circulation analysis for extended reach and horizontal wells.  

E-Print Network (OSTI)

??Well control is of the utmost importance during drilling operations. Numerous well control incidents occur on land and offshore rigs. The consequences of a loss… (more)

Long, Maximilian Mark

2005-01-01T23:59:59.000Z

365

Drilling through gas hydrates formations: possible problems and suggested solution  

E-Print Network (OSTI)

Gas hydrate research in the last two decades has taken various directions ranging from ways to understand the safe and economical production of this enormous resource to drilling problems. as more rigs and production platforms move into deeper waters to its environmental impact on global warming and cooling. Gas hydrates are ice-like structures of a water lattice with cavities, which contain guest gases. Gas hydrates are stable at low temperatures and high pressures. The amount of energy trapped in gas hydrates all over the world is about twice the amount found in all recoverable fossil fuels today. This research identifies the problems facing the oil and gas industry as it drills in deeper waters where gas hydrates are present and suggests solutions to some of the problems. The problems considered in this research have been approached from a drilling point of view. Hence, the parameters investigated and discussed are drilling controlled parameters. They include rate of penetration, circulation rate and drilling fluid density. The rate of penetration in offshore wells contributes largely to the final cost of the drilling process. These 3 parameters have been linked in the course of this research in order to suggest an optimum rate of penetration. The results show the rate of penetration is directly proportional to the amount of gas released when drilling through gas hydrate. As the volume of gas released increases, the problems facing the drilling rigs, drilling crew and environment is seen to increase. The results also show the extent of risk to be expected while drilling through gas hydrate formations. A chart relating the rate of penetration, circulation rate and effective mud weight was used to select the optimum drilling rate within the drilling safety window. Finally, future considerations and recommendations in order to improve the analyses presented in this work are presented. Other drilling parameters proposed for future analysis include drill bit analysis with respect to heat transfer and the impact of dissociation of gas hydrate around the wellbore and seafloor stability.

Amodu, Afolabi Ayoola

2008-08-01T23:59:59.000Z

366

Laser Drilling - Drilling with the Power of Light  

Science Conference Proceedings (OSTI)

Gas Technology Institute (GTI) has been the leading investigator in the field of high power laser applications research for well construction and completion applications. Since 1997, GTI (then as Gas Research Institute- GRI) has investigated several military and industrial laser systems and their ability to cut and drill into reservoir type rocks. In this report, GTI continues its investigation with a 5.34 kW ytterbium-doped multi-clad high power fiber laser (HPFL). When compared to its competitors; the HPFL represents a technology that is more cost effective to operate, capable of remote operations, and requires considerably less maintenance and repair. Work performed under this contract included design and implementation of laboratory experiments to investigate the effects of high power laser energy on a variety of rock types. All previous laser/rock interaction tests were performed on samples in the lab at atmospheric pressure. To determine the effect of downhole pressure conditions, a sophisticated tri-axial cell was designed and tested. For the first time, Berea sandstone, limestone and clad core samples were lased under various combinations of confining, axial and pore pressures. Composite core samples consisted of steel cemented to rock in an effort to represent material penetrated in a cased hole. The results of this experiment will assist in the development of a downhole laser perforation or side tracking prototype tool. To determine how this promising laser would perform under high pressure in-situ conditions, GTI performed a number of experiments with results directly comparable to previous data. Experiments were designed to investigate the effect of laser input parameters on representative reservoir rock types of sandstone and limestone. The focus of the experiments was on laser/rock interaction under confining pressure as would be the case for all drilling and completion operations. As such, the results would be applicable to drilling, perforation, and side tracking applications. In the past, several combinations of laser and rock variables were investigated at standard conditions and reported in the literature. More recent experiments determined the technical feasibility of laser perforation on multiple samples of rock, cement and steel. The fiber laser was capable of penetrating these materials under a variety of conditions, to an appropriate depth, and with reasonable energy requirements. It was determined that fiber lasers are capable of cutting rock without causing damage to flow properties. Furthermore, the laser perforation resulted in permeability improvements on the exposed rock surface. This report has been prepared in two parts and each part may be treated as a stand-alone document. Part 1 (High Energy Laser Drilling) includes the general description of the concept and focuses on results from experiments under the ambient lab conditions. Part 2 (High Energy Laser Perforation and Completion Techniques) discusses the design and development of a customized laser pressure cell; experimental design and procedures, and the resulting data on pressure-charged samples exposed to the laser beam. An analysis provides the resulting effect of downhole pressure conditions on the laser/rock interaction process.

Iraj A. Salehi; Brian C. Gahan; Samih Batarseh

2007-02-28T23:59:59.000Z

367

Properly designed underbalanced drilling fluids can limit formation damage  

Science Conference Proceedings (OSTI)

Drilling fluids for underbalanced operations require careful design and testing to ensure they do not damage sensitive formations. In addition to hole cleaning and lubrication functions, these fluids may be needed as kill fluids during emergencies. PanCanadian Petroleum Ltd. used a systematic approach in developing and field testing a nondamaging drilling fluid. It was for use in underbalanced operations in the Glauconitic sandstone in the Westerose gas field in Alberta. A lab study was initiated to develop and test a non-damaging water-based drilling fluid for the horizontal well pilot project. The need to develop an inexpensive, nondamaging drilling fluid was previously identified during underbalanced drilling operations in the Weyburn field in southeastern Saskatchewan. A non-damaging fluid is required for hole cleaning, for lubrication of the mud motor, and for use as a kill fluid during emergencies. In addition, a nondamaging fluid is required when drilling with a conventional rig because pressure surges during connections and trips may result in the well being exposed to short periods of near balanced or overbalanced conditions. Without the protection of a filter cake, the drilling fluid will leak off into the formation, causing damage. The amount of damage is related to the rate of leak off and depth of invasion, which are directly proportional to the permeability to the fluid.

Churcher, P.L.; Yurkiw, F.J. [PanCanadian Petroleum Ltd., Calgary, Alberta (Canada); Bietz, R.F.; Bennion, D.B. [Hycal Energy Research Ltd., Calgary, Alberta (Canada)

1996-04-29T23:59:59.000Z

368

GRED STUDIES AND DRILLING OF AMERICULTURE STATE 2, AMERICULTURE TILAPIA FARM LIGHTNING DOCK KGRA, ANIMAS VALLEY, NM  

Science Conference Proceedings (OSTI)

This report summarizes the GRED drilling operations in the AmeriCulture State 2 well with an overview of the preliminary geologic and geothermal findings, from drill cuttings, core, geophysical logs and water geochemical sampling.

Witcher, James

2006-08-01T23:59:59.000Z

369

Development and testing of underbalanced drilling products. Topical report, September 1994--September 1995  

Science Conference Proceedings (OSTI)

Underbalanced drilling is experiencing growth at a rate that rivals that of horizontal drilling in the mid-1980s. Problems remain, however, for applying underbalanced drilling in a wider range of geological settings and drilling environments. This report addresses the development and testing of two products designed to advance the application of underbalanced drilling techniques. A user-friendly foam fluid hydraulics model (FOAM) was developed for a PC Windows environment. The program predicts pressure and flow characteristics of foam fluids used in underbalanced drilling operations. FOAM is based on the best available mathematical models, and was validated through comparison to existing models, laboratory test well measurements, and field data. This model does not handle air or mist drilling where the foam quality is above 0.97. An incompressible drilling fluid was developed that utilizes lightweight solid additives (hollow glass spheres) to reduce the density of the mud to less than that of water. This fluid is designed for underbalanced drilling situations where compressible lightweight fluids are inadequate. In addition to development of these new products, an analysis was performed to determine the market potential of lightweight fluids, and a forecast of underbalanced drilling in the USA over the next decade was developed. This analysis indicated that up to 12,000 wells per year (i.e., 30 percent of all wells) will be drilled underbalanced in the USA within the next ten years.

Medley, G.H., Jr; Maurer, W.C.; Liu, G.; Garkasi, A.Y.

1995-09-01T23:59:59.000Z

370

Top hole drilling with dual gradient technology to control shallow hazards  

E-Print Network (OSTI)

Currently the "Pump and Dump" method employed by Exploration and Production (E&P) companies in deepwater is simply not enough to control increasingly dangerous and unpredictable shallow hazards. "Pump and Dump" requires a heavy dependence on accurate seismic data to avoid shallow gas zones; the kick detection methods are slow and unreliable, which results in a need for visual kick detection; and it does not offer dynamic well control methods of managing shallow hazards such as methane hydrates, shallow gas and shallow water flows. These negative aspects of "Pump and Dump" are in addition to the environmental impact, high drilling fluid (mud) costs and limited mud options. Dual gradient technology offers a closed system, which improves drilling simply because the mud within the system is recycled. The amount of required mud is reduced, the variety of acceptable mud types is increased and chemical additives to the mud become an option. This closed system also offers more accurate and faster kick detection methods in addition to those that are already used in the "Pump and Dump" method. This closed system has the potential to prevent the formation of hydrates by adding hydrate inhibitors to the drilling mud. And more significantly, this system successfully controls dissociating methane hydrates, over pressured shallow gas zones and shallow water flows. Dual gradient technology improves deepwater drilling operations by removing fluid constraints and offering proactive well control over dissociating hydrates, shallow water flows and over pressured shallow gas zones. There are several clear advantages for dual gradient technology: economic, technical and significantly improved safety, which is achieved through superior well control.

Elieff, Brandee Anastacia Marie

2006-08-01T23:59:59.000Z

371

Electric drill-string telemetry  

Science Conference Proceedings (OSTI)

We design a numerical algorithm for simulation of low-frequency electric-signal transmission through a drill string. This is represented by a transmission line with varying geometrical and electromagnetic properties versus depth, depending on the characteristics ... Keywords: drill string, low frequency, simulation, transmission line, voltage

José M. Carcione; Flavio Poletto

2003-04-01T23:59:59.000Z

372

How borehole ballooning alters drilling responses  

Science Conference Proceedings (OSTI)

From field observations of drilling and hole instability problems over a 30-year period, a new and more complete understanding of plastic well-bore behavior - under certain pressure imbalance conditions - is being developed and verified with detailed well histories. Rock mechanics theory, thus far primarily concerned with plastic behavior and borehole collapse on the underbalanced side, is in at least partial agreement with these observations. This article further elaborates on the pressure-responsive plastic behavior of shales under tremendous downhole stresses, particularly in the overbalanced, ballooning mode. The primary subject matter of the article is divided into the following areas: Stable operating margin; Plastic behavior region; Wellbore wall yields; Brittle sloughings; Loss of mud; Gain of mud; Shut-in pressure; Reflex gas; Charged RFT's; Preexisting balloon; Drilling rate.

Gill, J.A.

1989-03-13T23:59:59.000Z

373

Analysis of wellbore instability in vertical, directional, and horizontal wells using field data  

E-Print Network (OSTI)

Analysis of wellbore instability in vertical, directional, and horizontal wells using field data M and directional wells is being redeveloped by drilling horizontal wells. The experience gained while drilling vertical and directional wells is not useful for drilling horizontal wells, as the failure rate is 1 in 3

Al-Majed, Abdulaziz Abdullah

374

Deep drilling data, Raft River geothermal area, Idaho-Raft River...  

Open Energy Info (EERE)

Deep drilling data, Raft River geothermal area, Idaho-Raft River geothermal exploration well sidetrack-C Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Deep...

375

Drilling Methods | Open Energy Information  

Open Energy Info (EERE)

Drilling Methods Drilling Methods Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Drilling Methods Details Activities (0) Areas (0) Regions (0) NEPA(5) Exploration Technique Information Exploration Group: Exploration Sub Group: None Parent Exploration Technique: Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Dictionary.png Drilling Methods: No definition has been provided for this term. Add a Definition References No exploration activities found. Document # Analysis Type Applicant Geothermal Area Lead Agency District Office Field Office Mineral Manager Surface Manager Development Phase(s) Techniques CA-170-02-15 EA Mammoth Pacific Long Valley Caldera Geothermal Area BLM BLM Central California District Office BLM Bishop Field Office BLM Geothermal/Exploration Drilling Methods

376

Hydraulic Pulse Drilling  

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

REV DATE DESCRIPTION ORIGINATOR REVIEWED DATE REV DATE DESCRIPTION ORIGINATOR REVIEWED DATE 0 4/13/2004 Final Report Author: J. Kolle Hunter/Theimer 4/13/2004 Document No.: TR- 053 HydroPulse(tm) Drilling Final Report Prepared by J.J. Kolle April 2004 U.S. Department of Energy Cooperative Development Agreement No. DE-FC26-FT34367 Tempress Technologies, Inc. 18858 - 72 ND Ave S. Kent, WA 98032 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not

377

NEPA COMPLIANCE SURVEY Project Information Project Title: Casing Drilling Test  

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

Casing Drilling Test Casing Drilling Test Date: 5-17-201 1 DOE Code: 6730-020-72000 Contractor Code: 8067-806 Project Lead: Marl< Duletsky Project Overview 1, Brief project description ~nclude The existing 13-1-SX-23 location and entry road will be reworldrilling rig (SST anything that could impact the rig #3). The two existing wells on the location will be capped at ground level, and a new well will be drilled environment] using water based mud. The existing rat I mouse hole on the site will be backfilled. A new 6700 ft3 reserve pit [80' long by 30' wide by 4' deep allowing for 2' of freeboard] will be constructed on location. and a 12 mm 2. Legal location liner will be installed. 3. Duration of the project 4. Major equipment to be used

378

Salton Sea Scientific Drilling Project: A summary of drilling and engineering activities and scientific results  

DOE Green Energy (OSTI)

The Salton Sea Scientific g Project (SSSDP) completed the first major well in the United States Continental Scientific Drilling Program. The well (State 2-14) was drilled to 10,W ft (3,220 m) in the Salton Sea Geothermal Field in California's Imperial Valley, to permit scientific study of a deep, high-temperature portion of an active geothermal system. The program was designed to investigate, through drilling and testing, the subsurface thermal, chemical, and mineralogical environments of this geothermal area. Extensive samples and data, including cores, cuttings, geothermal fluids and gases, and geophysical logs, were collected for future scientific analysis, interpretation, and publication. Short duration flow tests were conducted on reservoirs at a depth of approximately 6,120 ft (1,865 m) and at 10,136 ft (3,089 m). This report summarizes all major activities of the SSSDP, from project inception in the fall of 1984 through brine-pond cleanup and site restoration, ending in February 1989. This report presents a balanced summary of drilling, coring, logging, and flow-test operations, and a brief summary of technical and scientific results. Frequent reference is made to original records, data, and publication of results. The report also reviews the proposed versus the final well design, and operational summaries, such as the bit record, the casing and cementing program, and the coring program. Summaries are and the results of three flow tests. Several teamed during the project.

Ross, H.P.; Forsgren, C.K. (eds.)

1992-04-01T23:59:59.000Z

379

Single-Well and Cross-Well Seismic At Salt Wells Area (Bureau of Land  

Open Energy Info (EERE)

Single-Well and Cross-Well Seismic At Salt Wells Area (Bureau of Land Single-Well and Cross-Well Seismic At Salt Wells Area (Bureau of Land Management, 2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Single-Well and Cross-Well Seismic At Salt Wells Area (Bureau of Land Management, 2009) Exploration Activity Details Location Salt Wells Geothermal Area Exploration Technique Single-Well And Cross-Well Seismic Activity Date 2008 - 2008 Usefulness not indicated DOE-funding Unknown Exploration Basis Vulcan increased exploration efforts in the summer and fall of 2008, during which time the company drilled two temperature gradient holes (86-15 O on Pad 1 and 17-16 O on Pad 3); conducted seismic, gravity and magnetotelluric surveys; and drilled deep exploration wells at Pads 6 and 8 and binary

380

OCEAN DRILLING PROGRAM LEG 179 PRELIMINARY REPORT  

E-Print Network (OSTI)

using a section of drill-in casing connected to a free-fall reentry cone. This hole was drilled to 95

Note: This page contains sample records for the topic "wells drilled successful" 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

Advanced Mud System for Microhole Coiled Tubing Drilling  

Science Conference Proceedings (OSTI)

An advanced mud system was designed and key components were built that augment a coiled tubing drilling (CTD) rig that is designed specifically to drill microholes (less than 4-inch diameter) with advanced drilling techniques. The mud system was tailored to the hydraulics of the hole geometries and rig characteristics required for microholes and is capable of mixing and circulating mud and removing solids while being self contained and having zero discharge capability. Key components of this system are two modified triplex mud pumps (High Pressure Slurry Pumps) for advanced Abrasive Slurry Jetting (ASJ) and a modified Gas-Liquid-Solid (GLS) Separator for well control, flow return and initial processing. The system developed also includes an additional component of an advanced version of ASJ which allows cutting through most all materials encountered in oil and gas wells including steel, cement, and all rock types. It includes new fluids and new ASJ nozzles. The jetting mechanism does not require rotation of the bottom hole assembly or drill string, which is essential for use with Coiled Tubing (CT). It also has low reactive forces acting on the CT and generates cuttings small enough to be easily cleaned from the well bore, which is important in horizontal drilling. These cutting and mud processing components and capabilities compliment the concepts put forth by DOE for microhole coiled tubing drilling (MHTCTD) and should help insure the reality of drilling small diameter holes quickly and inexpensively with a minimal environmental footprint and that is efficient, compact and portable. Other components (site liners, sump and transfer pumps, stacked shakers, filter membranes, etc.. ) of the overall mud system were identified as readily available in industry and will not be purchased until we are ready to drill a specific well.

Kenneth Oglesby

2008-12-01T23:59:59.000Z

382

DEVELOPMENT OF NEW DRILLING FLUIDS  

SciTech Connect

The goal of the project has been to develop new types of drill-in fluids (DIFs) and completion fluids (CFs) for use in natural gas reservoirs. Phase 1 of the project was a 24-month study to develop the concept of advanced type of fluids usable in well completions. Phase 1 tested this concept and created a kinetic mathematical model to accurately track the fluid's behavior under downhole conditions. Phase 2 includes tests of the new materials and practices. Work includes the preparation of new materials and the deployment of the new fluids and new practices to the field. The project addresses the special problem of formation damage issues related to the use of CFs and DIFs in open hole horizontal well completions. The concept of a ''removable filtercake'' has, as its basis, a mechanism to initiate or trigger the removal process. Our approach to developing such a mechanism is to identify the components of the filtercake and measure the change in the characteristics of these components when certain cleanup (filtercake removal) techniques are employed.

David B. Burnett

2003-08-01T23:59:59.000Z

383

Low permeability filter cake limits damage from high-pH drilling fluids  

Science Conference Proceedings (OSTI)

Changing the particle size distribution in high-pH drilling fluids and perforating underbalanced helped protect sensitive reservoirs from formation damage. In several wells drilled in a carboniferous reservoir system in China, invasion of the high-pH filtrate from the drilling and workover fluids seriously damaged the formation. An in-depth reservoir study determined the cause of the formation damage and led to the development of new field procedures to prevent damage in future wells. Details are described.

Wu, Z.; Hu, Y. [Southwest Petroleum Inst., Nanchong (China)

1997-02-17T23:59:59.000Z

384

Drilling Waste Management Fact Sheet: Slurry Injection of Drilling Wastes  

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

Slurry Injection Slurry Injection Fact Sheet - Slurry Injection of Drilling Wastes Underground Injection of Drilling Wastes Several different approaches are used for injecting drilling wastes into underground formations for permanent disposal. Salt caverns are described in a separate fact sheet. This fact sheet focuses on slurry injection technology, which involves grinding or processing solids into small particles, mixing them with water or some other liquid to make a slurry, and injecting the slurry into an underground formation at pressures high enough to fracture the rock. The process referred to here as slurry injection has been given other designations by different authors, including slurry fracture injection (this descriptive term is copyrighted by a company that provides slurry injection services), fracture slurry injection, drilled cuttings injection, cuttings reinjection, and grind and inject.

385

Drilling Techniques | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Drilling Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Drilling Techniques Details Activities (0) Areas (0) Regions (0) NEPA(20) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Identify lithology and mineralization, provide core samples and rock cuttings Stratigraphic/Structural: Retrieved samples can be used to identify stratigraphy and structural features such as fracture networks or faults Hydrological: -Water samples can be used for geochemical analysis -Fluid pressures can be used to estimate flow rates

386

Handbook 1: Introduction to drilling mud systems  

Science Conference Proceedings (OSTI)

This is the first of the 11 handbook that make up the IADC Mud Equipment Manual. The manual is designed to provide information on all pieces of drilling rig equipment from the flow line to the mud pump section. This book focuses on drilling fluids and their properties and treatment, and thoroughly examines mud solid characteristics. Methods of controlling formation pore pressure, and cut points, as well as cuttings removal (viscosity, yield point, gel strengths, hole cleaning, etc.), are followed by a discussion of solid sizes and solid size distribution. Special features include a glossary of mud terms, a section on ''hard-to-find'' information such as gold concentration, wind forces, and AC motor current requirements, and a comprehensive index for all 11 handbooks.

Not Available

1985-01-01T23:59:59.000Z

387

U.S. Dry Exploratory and Developmental Wells Drilled (Number ...  

U.S. Energy Information Administration (EIA)

456: 307: 363: 325: 340: 2001: 374: 326: 316: 377: 428: 419: 413: 448: 378: 429: 361: 329: 2002: 314: 266: 283: 300: 308: 308: 317: 366: 329: 351: 291: 321: 2003: 306 ...

388

U.S. Dry Developmental Wells Drilled (Number of Elements)  

Annual Energy Outlook 2012 (EIA)

421 359 397 405 385 1974 377 310 403 423 458 391 507 444 484 527 454 505 1975 515 408 456 482 500 542 526 599 649 685 599 556 1976 637 522 574 591 563 588 549 554 580 645 592...

389

U.S. Dry Exploratory Wells Drilled (Number of Elements)  

Annual Energy Outlook 2012 (EIA)

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's 7,228 1950's 8,292 9,539 10,090 10,633 10,389 11,832 13,118 11,904 10,632 10,577 1960's 9,515...

390

U.S. Dry Developmental Wells Drilled (Number of Elements)  

Gasoline and Diesel Fuel Update (EIA)

Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1940's 5,369 1950's 6,507 7,487 7,669 7,816 8,541 8,620 8,993 8,252 7,530 8,012 1960's 8,697 8,309...

391

U.S. Dry Exploratory Wells Drilled (Number of Elements)  

Gasoline and Diesel Fuel Update (EIA)

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1973 538 411 431 367 454 477 530 601 502 551 501 589 1974 490 486 492 532 570 556 608 617 590 622 644 626 1975 624 453 572 551...

392

U.S. Natural Gas Exploratory and Developmental Wells Drilled ...  

U.S. Energy Information Administration (EIA)

Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec; 1973: 519: 454: 494: 546: 598: 543: 615: 690: 574: 694: 616: 590: 1974: 686: 545: 657: 624: 604: 595: 604: 554 ...

393

Drilling and Well Construction, Chapter 6, Geothermal Direct...  

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

are larger than the original materials, they cause expansion, which results in cracking spalling, and ultimate disintegration. Loss of the solid cement sheath protecting the...

394

Distribution network modeling and optimization for rapid and cost-effective deployment of oilfield drilling equipment  

E-Print Network (OSTI)

AAA, a large oil and gas field services company, is in the business of providing drilling services to companies that extract and market hydrocarbons. One of the key success factors in this industry is the ability to provide ...

Martchouk, Alexander

2010-01-01T23:59:59.000Z

395

U.S. Real Cost per Foot of Crude Oil, Natural Gas, and Dry Wells...  

Annual Energy Outlook 2012 (EIA)

Foot of Crude Oil, Natural Gas, and Dry Wells Drilled (Dollars per Foot) U.S. Real Cost per Foot of Crude Oil, Natural Gas, and Dry Wells Drilled (Dollars per Foot) Decade Year-0...

396

OCEAN DRILLING PROGRAM LEG 158 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

for the Ocean Drilling Program Deutsche Forschungsgemeinschaft (Federal Republic of Germany) Institut Français

397

OCEAN DRILLING PROGRAM LEG 160 PRELIMINARY REPORT  

E-Print Network (OSTI)

/Canada/Chinese Taipei/Korea Consortium for Ocean Drilling Deutsche Forschungsgemeinschaft (Federal Republic of Germany

398

OCEAN DRILLING PROGRAM LEG 160 SCIENTIFIC PROSPECTUS  

E-Print Network (OSTI)

/Canada/Chinese Taipei/Korea Consortium for Ocean Drilling Deutsche Forschungsgemeinschaft (Federal Republic of Germany

399

PAO lubricant inhibits bit balling, speeds drilling  

Science Conference Proceedings (OSTI)

For drilling operations, a new polyalphaolefin (PAO) lubricant improves penetration rates by reducing bit balling tendencies in water-based mud. The additive also reduces drillstring drag. This enables the effective transmission of weight to the bit and thereby increases drilling efficiency in such applications as directional and horizontal drilling. The paper describes drilling advances, bit balling, laboratory testing, and test analysis.

Mensa-Wilmot, G. [GeoDiamond, Houston, TX (United States); Garrett, R.L. [Garrett Fluid Technology, The Woodlands, TX (United States); Stokes, R.S. [Coastal Superior Solutions Inc., Lafayette, LA (United States)

1997-04-21T23:59:59.000Z

400

Increasing Well Productivity in Gas Condensate Wells in Qatar's North Field  

E-Print Network (OSTI)

Condensate blockage negatively impacts large natural gas condensate reservoirs all over the world; examples include Arun Field in Indonesia, Karachaganak Field in Kazakhstan, Cupiagua Field in Colombia,Shtokmanovskoye Field in Russian Barents Sea, and North Field in Qatar. The main focus of this thesis is to evaluate condensate blockage problems in the North Field, Qatar, and then propose solutions to increase well productivity in these gas condensate wells. The first step of the study involved gathering North Field reservoir data from previously published papers. A commercial simulator was then used to carry out numerical reservoir simulation of fluid flow in the North Field. Once an accurate model was obtained, the following three solutions to increasing productivity in the North Field are presented; namely wettability alteration, horizontal wells, and reduced Non Darcy flow. Results of this study show that wettability alteration can increase well productivity in the North Field by adding significant value to a single well. Horizontal wells can successfully increase well productivity in the North Field because they have a smaller pressure drawdown (compared to vertical wells). Horizontal wells delay condensate formation, and increase the well productivity index by reducing condensate blockage in the near wellbore region. Non Darcy flow effects were found to be negligible in multilateral wells due to a decrease in fluid velocity. Therefore, drilling multilateral wells decreases gas velocity around the wellbore, decreases Non Darcy flow effects to a negligible level, and increases well productivity in the North Field.

Miller, Nathan

2009-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "wells drilled successful" 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

Prospects for improvement in geothermal well technology and their expected benefits  

DOE Green Energy (OSTI)

Performance restrictions on current geothermal drilling technology and their impact on drilling costs are reviewed, with the impact on electric power costs. Sensitivities of drilling costs to changes in drilling performance are analyzed. A programmatic goal for improving drilling performance is offered. The likely cost savings to the nation if the goal is attained are estimated though the use of a geothermal well drilling scenario for the 1978 to 1990 period, which was derived from DOE's geothermal power on-line scenario. The present worth of the expectd savings stream (benefit) is offered as a point of departure for justifying programmatic costs for improving drilling technology.

Not Available

1978-06-01T23:59:59.000Z

402

NETL: News Release - Success on Tap...  

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

an additional 600 barrels of oil per day. The model also identified three new pockets of oil, holding a total of 80 million barrels. The first well drilled in 2002, after modeling...

403

Use of Cutting-Edge Horizontal and Underbalanced Drilling Technologies and Subsurface Seismic Techniques to Explore, Drill and Produce Reservoired Oil and Gas from the Fractured Monterey Below 10,000 ft in the Santa Maria Basin of California  

Science Conference Proceedings (OSTI)

This project was undertaken to demonstrate that oil and gas can be drilled and produced safely and economically from a fractured Monterey reservoir in the Santa Maria Basin of California by employing horizontal wellbores and underbalanced drilling technologies. Two vertical wells were previously drilled in this area with heavy mud and conventional completions; neither was commercially productive. A new well was drilled by the project team in 2004 with the objective of accessing an extended length of oil-bearing, high-resistivity Monterey shale via a horizontal wellbore, while implementing managed-pressure drilling (MPD) techniques to avoid formation damage. Initial project meetings were conducted in October 2003. The team confirmed that the demonstration well would be completed open-hole to minimize productivity impairment. Following an overview of the geologic setting and local field experience, critical aspects of the application were identified. At the pre-spud meeting in January 2004, the final well design was confirmed and the well programming/service company requirements assigned. Various design elements were reduced in scope due to significant budgetary constraints. Major alterations to the original plan included: (1) a VSP seismic survey was delayed to a later phase; (2) a new (larger) surface hole would be drilled rather than re-enter an existing well; (3) a 7-in. liner would be placed into the top of the Monterey target as quickly as possible to avoid problems with hole stability; (4) evaluation activities were reduced in scope; (5) geosteering observations for fracture access would be deduced from penetration rate, cuttings description and hydrocarbon in-flow; and (6) rather than use nitrogen, a novel air-injection MPD system was to be implemented. Drilling operations, delayed from the original schedule by capital constraints and lack of rig availability, were conducted from September 12 to November 11, 2004. The vertical and upper curved sections were drilled and lined through the problematic shale member without major stability problems. The top of the targeted Monterey was thought to be seen at the expected TVD of 10,000 ft where the 7-in. liner was set at a 60{sup o} hole angle. Significant oil and gas shows suggested the fractured interval anticipated at the heel location had been penetrated. A total of 2572 ft of 6{Delta}-in. near-horizontal interval was placed in the shale section, extending planned well length by approximately 470 ft. Very little hydrocarbon in-flow was observed from fractures along the productive interval. This may be a result of the well trajectory falling underneath the Monterey fractured zone. Hydrocarbon observations, cuttings analysis and gamma-ray response indicated additional fractured intervals were accessed along the last {+-}900 ft of well length. The well was completed with a 2 and 7/8-in. tubing string set in a production packer in preparation for flow and swab tests to be conducted later by a service rig. The planned well time was estimated as 39 days and overall cost as $2.4 million. The actual results are 66 days at a total cost of $3.4 million. Well productivity responses during subsequent flow and swabbing tests were negative. The well failed to inflow and only minor amounts (a few barrels) of light oil were recovered. The lack of production may suggest that actual sustainable reservoir pressure is far less than anticipated. Temblor attempted in July, 2006, to re-enter and clean out the well and run an Array Induction log (primarily for resistivity and correlation purposes), and an FMI log (for fracture detection). Application of surfactant in the length of the horizontal hole, and acid over the fracture zone at 10,236 was also planned. This attempt was not successful in that the clean out tools became stuck and had to be abandoned.

George Witter; Robert Knoll; William Rehm; Thomas Williams

2006-06-30T23:59:59.000Z

404

Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling  

SciTech Connect

The two phase program addresses long-term developments in deep well and hard rock drilling. TerraTek believes that significant improvements in drilling deep hard rock will be obtained by applying ultra-high rotational speeds (greater than 10,000 rpm). The work includes a feasibility of concept research effort aimed at development that will ultimately result in the ability to reliably drill 'faster and deeper' possibly with smaller, more mobile rigs. The principle focus is on demonstration testing of diamond bits rotating at speeds in excess of 10,000 rpm to achieve high rate of penetration (ROP) rock cutting with substantially lower inputs of energy and loads. The significance of the 'ultra-high rotary speed drilling system' is the ability to drill into rock at very low weights on bit and possibly lower energy levels. The drilling and coring industry today does not practice this technology. The highest rotary speed systems in oil field and mining drilling and coring today run less than 10,000 rpm - usually well below 5,000 rpm. This document provides the progress through two phases of the program entitled 'Smaller Footprint Drilling System for Deep and Hard Rock Environments: Feasibility of Ultra-High-Speed Diamond Drilling' for the period starting 30 June 2003 and concluding 31 March 2009. The accomplishments of Phases 1 and 2 are summarized as follows: (1) TerraTek reviewed applicable literature and documentation and convened a project kick-off meeting with Industry Advisors in attendance (see Black and Judzis); (2) TerraTek designed and planned Phase I bench scale experiments (See Black and Judzis). Improvements were made to the loading mechanism and the rotational speed monitoring instrumentation. New drill bit designs were developed to provided a more consistent product with consistent performance. A test matrix for the final core bit testing program was completed; (3) TerraTek concluded small-scale cutting performance tests; (4) Analysis of Phase 1 data indicated that there is decreased specific energy as the rotational speed increases; (5) Technology transfer, as part of Phase 1, was accomplished with technical presentations to the industry (see Judzis, Boucher, McCammon, and Black); (6) TerraTek prepared a design concept for the high speed drilling test stand, which was planned around the proposed high speed mud motor concept. Alternative drives for the test stand were explored; a high speed hydraulic motor concept was finally used; (7) The high speed system was modified to accommodate larger drill bits than originally planned; (8) Prototype mud turbine motors and the high speed test stand were used to drive the drill bits at high speed; (9) Three different rock types were used during the testing: Sierra White granite, Crab Orchard sandstone, and Colton sandstone. The drill bits used included diamond impregnated bits, a polycrystalline diamond compact (PDC) bit, a thermally stable PDC (TSP) bit, and a hybrid TSP and natural diamond bit; and (10) The drill bits were run at rotary speeds up to 5500 rpm and weight on bit (WOB) to 8000 lbf. During Phase 2, the ROP as measured in depth of cut per bit revolution generally increased with increased WOB. The performance was mixed with increased rotary speed, with the depth cut with the impregnated drill bit generally increasing and the TSP and hybrid TSP drill bits generally decreasing. The ROP in ft/hr generally increased with all bits with increased WOB and rotary speed. The mechanical specific energy generally improved (decreased) with increased WOB and was mixed with increased rotary speed.

TerraTek, A Schlumberger Company

2008-12-31T23:59:59.000Z

405

Godchaux Well No. 1, Vermilion Parish, Louisiana: completion and testing. Final report  

DOE Green Energy (OSTI)

The Godchaux Well No. 1 was originally drilled too a total depth of 16,000 feet in January, 1981 by C and K Petroleum, Inc. and was temporarily abandoned. The well was re-entered by Eaton on 6 August 1981 in an effort to clean out the original open hole below the 7-5/8 inch liner and test a section of the Planulina sand at a depth ranging from 15,584 to 15,692 feet. The reservoir pressure was estimated to be 14,480 psi, and the temperature of the formation water was expected to be 298/sup 0/F. The water salinity was predicted to be 70,000 ppM. The well was expected to produce up to 20,000 BWPD, was a gas content of 44 SCF per barrel. An optional test of a zone from 14,905 to 15,006 feet was also proposed in the detailed completion prognosis, which preceded the attempted test. In the process of drilling the cement plug set by the original operators, the drill string became side-tracked from the original hole. While drilling at 14,510 feet a severe loss of circulation of drilling fluid occurred through a hole in the intermediate casing. The reduction in hydrostatic head resulting from lost circulation caused the open hole to close around and stick the drill string. Efforts to repair the intermediate casing and return to normal operations were estimated to be prohibitively expensive in view of the expected poor probability of success; accordingly, the decision to plug and abandon was carried out on September 12, 1981.

Not Available

1981-01-01T23:59:59.000Z

406

Research drilling in young silicic volcanoes  

DOE Green Energy (OSTI)

Magmatic activity, and particularly silicic magmatic activity, is the fundamental process by which continental crust forms and evolves. The transport of magma from deep crustal reservoirs to the surface is a neglected but important aspect of magmatic phenomena. It encompasses problems of eruptive behavior, hydrothermal circulation, and ore deposition, and must be understood in order to properly interpret deeper processes. Drilling provides a means for determining the relationship of shallow intrusive processes to eruption processes at young volcanoes where eruptions are best understood. Drilling also provides a means for directly observing the processes of heat and mass transfer by which recently emplaced intrusions approach equilibrium with their new environment. Drilling in the Inyo Chain, a 600-year-old chain of volcanic vents in California, has shown the close relationship of silicic eruption to shallow dike emplacement, the control of eruptive style by shallow porous-flow degassing, the origin of obsidian by welding, the development of igneous zonation by viscosity segregation, and the character and size of conduits in relation to well-understood magmatic and phreatic eruptions. 36 refs., 9 figs.

Eichelberger, J.C.

1989-06-30T23:59:59.000Z

407

Evaluation of commercially available geothermal drilling fluids  

DOE Green Energy (OSTI)

A review of geothermal drilling in the United States has revealed that serious problems are being encountered with corrosion and degradation of drilling fluids in high temperature wells. The best high temperature drilling fluids that could be formulated from commercially available materials were obtained from the five largest mud companies. These included samples of 9 and 18 lb/gal water muds and 18 lb/gal oil muds. Over 4,000 tests were conducted on these muds to evaluate their performance at high temperature. This included testing at temperatures to 550/sup 0/F and pressures to 15,000 psi. These tests revealed that most of the water muds had high viscosity, high filtration rates and poor corrosivity characteristics at temperatures above 350/sup 0/F. Although the oil muds performed better than water muds at high temperatures, some problems were encountered with viscosity at temperatures above 450/sup 0/F and with filtration at temperatures above 500/sup 0/F. Generally the corrosivity characteristics of the oil muds were much better than those of the water muds. Overall, oil muds have better temperature stability than water muds but their use is often limited because of problems with surface pollution, contamination of water zones and reservoir damage. Biodegradable oil mud systems would overcome some of these limitations.

Remont, L.J.; Rehm, W.A.; McDonald, W.J.; Maurer, W.C.

1976-11-01T23:59:59.000Z

408

Rotary steerable motor system for underground drilling  

Science Conference Proceedings (OSTI)

A preferred embodiment of a system for rotating and guiding a drill bit in an underground bore includes a drilling motor and a drive shaft coupled to drilling motor so that drill bit can be rotated by the drilling motor. The system further includes a guidance module having an actuating arm movable between an extended position wherein the actuating arm can contact a surface of the bore and thereby exert a force on the housing of the guidance module, and a retracted position.

Turner, William E. (Durham, CT); Perry, Carl A. (Middletown, CT); Wassell, Mark E. (Kingwood, TX); Barbely, Jason R. (Middletown, CT); Burgess, Daniel E. (Middletown, CT); Cobern, Martin E. (Cheshire, CT)

2010-07-27T23:59:59.000Z

409

NETL: News Release - Carbon Fiber Drill Pipe Performs Flawlessly in First  

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

January 9, 2003 January 9, 2003 Carbon Fiber Drill Pipe Performs Flawlessly in First Field Test Private Company to Use DOE-Sponsored Technology To Help Restore Domestic Production from Older Oil Wells TULSA COUNTY, OK - A new lightweight, flexible drill pipe engineered from space-age composites rather than steel has passed an important field test in a U.S. Department of Energy project and is now being readied for its first commercial use. - Photo - Composite Drill Pipe Being Bent - The advanced composite drill pipe could enable drillers in the future to bore sharply-curved "short radius" horizontal wells without creating fatigue stress on the drill pipe. The Energy Department's National Energy Technology Laboratory announced that the drill pipe, made from carbon fiber resins by Advanced Composite

410

Mixed Integer Model Predictive Control of Multiple Shale Gas Wells.  

E-Print Network (OSTI)

?? Horizontal wells with multistage hydraulic fracturing are today the most important drilling technology for shale gas extraction. Considered unprofitable before, the production has now… (more)

Nordsveen, Espen T

2012-01-01T23:59:59.000Z

411

NETL: News Release - Oil Well Stability Studies Underway in the...  

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

October 20, 2003 Oil Well Stability Studies Underway in the Gulf of Mexico Initial Results of Salt Mobility Studies Help Industry Cut Costs, Improve Odds of Deepwater Drilling...

412

Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To  

Open Energy Info (EERE)

Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Efficiently Exploit Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Microhole Arrays Drilled With Advanced Abrasive Slurry Jet Technology To Efficiently Exploit Enhanced Geothermal Systems Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Drilling Systems Project Description This project proposes to develop a cost-effective microhole drilling and completion technology with the Flash Abrasive Slurry Jet (ASJ) system and optimize it to maximize the efficiency of fluid circulation and heat removal for Enhanced Geothermal Systems (EGS). The proposed approach is expected to address the key obstacles that currently prevent EGS from becoming a technically feasible, commercially viable major contributor for electricity generation, namely: (1) reduce costs for drilling and well completion and (2) increase the volume of hot rock from which heat can be extracted.

413

Recommendations of the workshop on advanced geothermal drilling systems  

DOE Green Energy (OSTI)

At the request of the U.S. Department of Energy, Office of Geothermal Technologies, Sandia National Laboratories convened a group of drilling experts in Berkeley, CA, on April 15-16, 1997, to discuss advanced geothermal drilling systems. The objective of the workshop was to develop one or more conceptual designs for an advanced geothermal drilling system that meets all of the criteria necessary to drill a model geothermal well. The drilling process was divided into ten essential functions. Each function was examined, and discussions were held on the conventional methods used to accomplish each function and the problems commonly encountered. Alternative methods of performing each function were then listed and evaluated by the group. Alternative methods considered feasible or at least worth further investigation were identified, while methods considered impractical or not potentially cost-saving were eliminated from further discussion. This report summarizes the recommendations of the workshop participants. For each of the ten functions, the conventional methods, common problems, and recommended alternative technologies and methods are listed. Each recommended alternative is discussed, and a description is given of the process by which this information will be used by the U.S. DOE to develop an advanced geothermal drilling research program.

Glowka, D.A.

1997-12-01T23:59:59.000Z

414

Using Bayesian Network to Develop Drilling Expert Systems  

E-Print Network (OSTI)

Long years of experience in the field and sometimes in the lab are required to develop consultants. Texas A&M University recently has established a new method to develop a drilling expert system that can be used as a training tool for young engineers or as a consultation system in various drilling engineering concepts such as drilling fluids, cementing, completion, well control, and underbalanced drilling practices. This method is done by proposing a set of guidelines for the optimal drilling operations in different focus areas, by integrating current best practices through a decision-making system based on Artificial Bayesian Intelligence. Optimum practices collected from literature review and experts' opinions, are integrated into a Bayesian Network BN to simulate likely scenarios of its use that will honor efficient practices when dictated by varying certain parameters. The advantage of the Artificial Bayesian Intelligence method is that it can be updated easily when dealing with different opinions. To the best of our knowledge, this study is the first to show a flexible systematic method to design drilling expert systems. We used these best practices to build decision trees that allow the user to take an elementary data set and end up with a decision that honors the best practices.

Alyami, Abdullah

2012-08-01T23:59:59.000Z

415

NEW HIGH STRENGTH AND FASTER DRILLING TSP DIAMOND CUTTERS  

Science Conference Proceedings (OSTI)

The manufacture of thermally stable diamond (TSP) cutters for drill bits used in petroleum drilling requires the brazing of two dissimilar materials--TSP diamond and tungsten carbide. The ENDURUS{trademark} thermally stable diamond cutter developed by Technology International, Inc. exhibits (1) high attachment (shear) strength, exceeding 345 MPa (50,000 psi), (2) TSP diamond impact strength increased by 36%, (3) prevents TSP fracture when drilling hard rock, and (4) maintains a sharp edge when drilling hard and abrasive rock. A novel microwave brazing (MWB) method for joining dissimilar materials has been developed. A conventional braze filler metal is combined with microwave heating which minimizes thermal residual stress between materials with dissimilar coefficients of thermal expansion. The process results in preferential heating of the lower thermal expansion diamond material, thus providing the ability to match the thermal expansion of the dissimilar material pair. Methods for brazing with both conventional and exothermic braze filler metals have been developed. Finite element modeling (FEM) assisted in the fabrication of TSP cutters controllable thermal residual stress and high shear attachment strength. Further, a unique cutter design for absorbing shock, the densification of otherwise porous TSP diamond for increased mechanical strength, and diamond ion implantation for increased diamond fracture resistance resulted in successful drill bit tests.

Robert Radtke

2006-01-31T23:59:59.000Z

416

Geothermal Exploratory-Well Project: city of Alamosa, Colorado. Final report, September 1980-April 1983  

DOE Green Energy (OSTI)

The Geothermal Exploratory Well Project for the City of Alamosa, Colorado is summarized. In September, 1980, the City of Alamosa made application to the US Department of Energy for a program which, in essence, provided for the Department of Energy to insure that the City would not risk more than 10% of the total cost in the well if the well was a failure. If the well was a complete success, such as 650 gpm and 230/sup 0/F temperature, the City was responsible for 80% of the costs for drilling the well and there would be no further obligation from the Department of Energy. The well was drilled in November and early December, 1981, and remedial work was done in May and June 1982. The total drilled depth was 7118 ft. The well was cased to 4182 ft., with a slotted liner to 6084 ft. The maximum down hole temperature recorded was 190/sup 0/F at 6294 ft. Testing immediately following the remedial work indicated the well had virtually no potential to produce water.

Phetteplace, D.R.; Kunze, J.F.

1983-01-01T23:59:59.000Z

417

OCEAN DRILLING PROGRAM LEG 171B PRELIMINARY REPORT  

E-Print Network (OSTI)

at these adjacent holes. Well-developed ash zones in Core 136-842A-1H contain fresh glass as well as minerals of high-viscosity mud was pumped and circulated out. It was decided to trip the drill string and rig up

418

On-site generated nitrogen cuts cost of underbalanced drilling  

Science Conference Proceedings (OSTI)

The use of on-site generated nitrogen, instead of liquid nitrogen, has reduced the cost of drilling underbalanced horizontal wells in Canada and the western US. Because nitrogen is inert and inflammable, it is the preferred gas for underbalanced drilling. Nitrogen can be supplied for oil field use by three different methods: cryogenic liquid separation, pressure swing adsorption, and hollow fiber membranes. The selection of nitrogen supply from one of these methods depends on the cost of delivered nitrogen, the required flow rates and pressure, the required nitrogen purity, and the availability and reliability of the equipment for nitrogen generation. These three methods are described, as well as the required equipment.

Downey, R.A. [Energy Ingenuity Co., Englewood, CO (United States)

1997-02-24T23:59:59.000Z

419

PrimeEnergy/DOE/GRI slant well  

SciTech Connect

This report presents final results of the Sterling Boggs 1240 slant well. Objectives of the project were (1) to test the potential for improved recovery efficiency in a fractured Devonian Shale reservoir from a directionally drilled well, (2) to perform detailed tests of reservoir properties and completion methods, and (3) to provide technology to industry which may ultimately improve the economics of drilling in the Devonian Shale and thereby stimulate development of its resources.

Drimal, C.E.; Muncey, G.; Carden, R.

1991-12-01T23:59:59.000Z

420

Smaller Footprint Drilling System for  

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

Oil & Natural Gas Technology Oil & Natural Gas Technology DOE Award No.: DE-FC26-03NT15401 Final Report Smaller Footprint Drilling System for Deep and Hard Rock Environments; Feasibility of Ultra-High-Speed Diamond Drilling Submitted by: TerraTek, A Schlumberger Company 1935 Fremont Drive Salt Lake City, UT 84104 Prepared for: United States Department of Energy National Energy Technology Laboratory 2 February 2010 Office of Fossil Energy Feasibility of Ultra-High Speed Diamond Drilling DE-FC26-03NT15401 ii DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or

Note: This page contains sample records for the topic "wells drilled successful" 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

RECIPIENT:Potter Drilling Inc  

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

Potter Drilling Inc Potter Drilling Inc u.s. DEPARTUEN T OF ENERG¥ EERE PROJECT MANAGEMENT CENT ER NEPA DEIERl\IINATION PROJECr TITLE: Development of a Hydrothermal Spallation Drilling System for EGS Page 1 0[2 STATE: CA Funding Opportunity Announ<:ement Number Procurement Instrument Number NEPA Control Number CID Number OE·PS36-09G099016 OE· EE0002746 ~FO . 10 - [r,,~ G02746 Based on my review of the information concerning the proposed action, as NEPA ComplianC:f Offkrr (authorized under DOE Order 451.IA), I have made the following determination: ex. EA, EIS APPENDIX AND NUMBER: Description: A9 Information gathering (including, but not limited 10, literature surveys, inventories, audits), data analysis (including computer modeling), document preparation (such as conceptual design or feasibility studies, analytical energy supply

422

APPLICATION OF WATER-JET HORIZONTAL DRILLING TECHNOLOGY TO DRILL AND ACIDIZE HORIZONTAL DRAIN HOLES, TEDBIT (SAN ANDRES) FIELD, GAINES COUNTY, TEXAS  

SciTech Connect

The San Andres Formation is one of the major hydrocarbon-producing units in the Permian Basin, with multiple reservoirs contained within the dolomitized subtidal portions of upward shoaling carbonate shelf cycles. The test well is located in Tedbit (San Andres) Field in northeastern Gaines County, Texas, in an area of scattered San Andres production associated with local structural highs. Selected on the basis of geological and historical data, the Oil and Gas Properties Wood No. 1 well is considered to be typical of a large number of San Andres stripper wells in the Permian Basin. Thus, successful completion of horizontal drain holes in this well would demonstrate a widely applicable enhanced recovery technology. Water-jet horizontal drilling is an emerging technology with the potential to provide significant economic benefits in marginal wells. Forecast benefits include lower recompletion costs and improved hydrocarbon recoveries. The technology utilizes water under high pressure, conveyed through small-diameter coiled tubing, to jet horizontal drain holes into producing formations. Testing of this technology was conducted with inconclusive results. Paraffin sludge and mechanical problems were encountered in the wellbore, initially preventing the water-jet tool from reaching the kick-off point. After correcting these problems and attempting to cut a casing window with the water-jet milling assembly, lateral jetting was attempted without success.

Michael W. Rose

2005-09-22T23:59:59.000Z

423

Subsea Mudlift Drilling: evaluation of the pressure differential problem with subsea pump  

E-Print Network (OSTI)

The petroleum industry is trying to develop new and improved technology to safely, successfully and profitably extract hydrocarbons in deep water. One such technology under development is subsea mudlift drilling (SMD), a joint industry project with nine companies participating. In subsea mudlift drilling the mud returns do not go through the drilling riser as in conventional drilling, but instead they go through one or more smaller diameter return lines back to the surface. This is made possible by the use of a set of subsea pumps located on the ocean floor that will take suction from the annulus side of the wellbore. The subsea pump acts as a choke that can be "opened" or "closed" by adjusting the pump rate in order to keep the bottom hole pressure constant. The pump is designed to do this as long as the outlet pressure does not fall more than 500 psi below the inlet pressure. If the outlet pressure falls more than 500 psi below the inlet pressure, the pump will not be able to handle this differential and the fluid will flow through the pump due to a pressure reversal. This would result in a loss of bottom hole pressure. The purpose of this thesis is to investigate this pressure differential problem to determine the operating conditions under which a pressure reversal will occur, and to see for what kick scenarios this becomes a problem. One way to counteract the pressure reversal is to apply backpressure at the surface choke. The effect of applying various levels of backpressure is investigated in this thesis. Possible complications resulting from this remedy, such as increased flow rates of gas from the well during well control operations, are also evaluated. A major conclusion from this study is that the solution of applying backpressure through a surface choke is a valid and functional solution. This thesis also explains the effect of various variables on u-tubing rate and mud level drop in subsea mudlift drilling. The major conclusion here is that the driving forces behind the u-tube are water depth and mud weight.

Johansen, Tarjei

2000-01-01T23:59:59.000Z

424

Evaluation of liquid lift approach to dual gradient drilling  

E-Print Network (OSTI)

In the past, the oil and gas industry has typically used the single gradient system to drill wells offshore. With this system the bottom hole pressure was controlled by a mud column extending from the drilling rig to the bottom of the wellbore. This mud column was used to achieve the required bottom hole pressure. But, as the demand for oil and gas increased, the industry started exploring for oil and gas in deep waters. Because of the narrow margin between the pore and fracture pressures it is somewhat difficult to reach total depth with the single gradient system. This led to the invention of the dual gradient system. In the dual gradient method, heavy density fluid runs from the bottom hole to the mudline and a low density fluid from the mudline to the rig floor so as to maintain the bottom hole pressure. Several methods have been developed to achieve the dual gradient drilling principle. For this research project, we paid more attention to the liquid lift, dual gradient drilling (riser dilution method). This method of achieving dual gradient drilling was somewhat different from the others, because it does not utilize elaborate equipment and no major changes are made on the existing drilling rigs. In this thesis the technical feasibility of using the liquid lift method over the other methods of achieving dual gradient drilling was determined. A computer program was developed to simulate the wellbore hydraulics under static and dynamic conditions, injection rate and base fluid density required to dilute the riser fluid and finally, u-tubing phenomena. In this thesis we also identified some problems associated with the liquid lift method and recommendations were made on how these problems can be eliminated or reduced. Emphases were placed on the effect of u-tubing, injection rate of base fluid at the bottom of the riser and well control issues facing this system.

Okafor, Ugochukwu Nnamdi

2007-12-01T23:59:59.000Z

425

Assembly for directional drilling of boreholes  

Science Conference Proceedings (OSTI)

This patent describes a drilling assembly for directional drilling of boreholes in subsurface formations. The assembly comprising a downhole drilling motor. The motor having an output shaft which is suitable to drive a rotary drill bit and a motor housing which is suitable to be arranged at the lower end of a drill string; stabilizing means for stabilizing the assembly; means in the assembly for permanently tilting the central axis of the output shaft with respect to the longitudinal axis of the drill string in the borehole. It is characterized in that the stabilizing means include a lower-most stabilizer which is secured to and rotates with the output shaft.

Steiginga, A.; Worrall, R.N.

1989-11-14T23:59:59.000Z

426

Completion report: Raft River Geothermal Injection Well Six (RRGI-6)  

DOE Green Energy (OSTI)

Raft River Geothermal Injection Well Six (RRGI-6) is an intermediate-depth injection well designed to accept injection water in the 600 to 1000 m (2000 to 3500 ft) depth range. It has one barefoot leg, and it was drilled so that additional legs can be added later; if there are problems with intermediate-depth injection, one or more additional legs could be directionally drilled from the current well bore. Included are the reports of daily drilling records of drill bits, casings, and loggings, and descriptions of cementing, coring, and containment.

Miller, L.G.; Prestwich, S.M.

1979-02-01T23:59:59.000Z

427

Thermoporoelastic Effects of Drilling Fluid Temperature on Rock Drillability at Bit/Formation Interface  

E-Print Network (OSTI)

A drilling operation leads to thermal disturbances in the near-wellbore stress, which is an important cause of many undesired incidents in well drilling. A major cause of this thermal disturbance is the temperature difference between the drilling fluid and the downhole formation. It is critical for drilling engineers to understand this thermal impact to optimize their drilling plans. This thesis develops a numerical model using partially coupled thermoporoelasticity to study the effects of the temperature difference between the drilling fluid and formation in a drilling operation. This study focuses on the thermal impacts at the bit/formation interface. The model applies the finite-difference method for the pore pressure and temperature solutions, and the finite-element method for the deformation and stress solutions. However, the model also provides the thermoporoelastic effects at the wellbore wall, which involves wellbore fractures and wellbore instability. The simulation results show pronounced effects of the drilling fluid temperature on near-wellbore stresses. At the bottomhole area, a cool drilling fluid reduces the radial and tangential effective stresses in formation, whereas the vertical effective stress increases. The outcome is a possible enhancement in the drilling rate of the drill bit. At the wellbore wall, the cool drilling fluid reduces the vertical and tangential effective stresses but raises the radial effective stress. The result is a lower wellbore fracture gradient; however, it benefits formation stability and prevents wellbore collapse. Conversely, the simulation gives opposite induced stress results to the cooling cases when the drilling fluid is hotter than the formation.

Thepchatri, Kritatee 1984-

2012-12-01T23:59:59.000Z

428

DOE-Sponsored Project Pushes the Limits of Seismic-While-Drilling  

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

Project Pushes the Limits of Seismic-While-Drilling Project Pushes the Limits of Seismic-While-Drilling Technology DOE-Sponsored Project Pushes the Limits of Seismic-While-Drilling Technology August 12, 2009 - 1:00pm Addthis Washington, DC - In a project sponsored by the U.S. Department of Energy, Technology International Inc. has developed a breakthrough borehole imaging system that stands on the cusp of commercialization. By pushing the limits of seismic-while-drilling technology, the patent-pending SeismicPULSER system provides more accurate geo-steering for the discovery of new oil and natural gas reserves, facilitating new field development and improving well economics. Drill-bit seismic-while-drilling techniques use a downhole acoustic source and receivers at the surface to create real-time images that allow

429

Apparatus for measuring weight, torque and side force on a drill bit  

Science Conference Proceedings (OSTI)

This patent describes an apparatus for measuring at least one load applied to a drill bit during the drilling of a well, including: drill string sub means adapted to be connected in a drill string above the drill bit; hole means for defining a pair of diametrically opposite through-hole means in the wall of the sub; plug means in each of the hole means, the plug means cooperating with the through hole means to define an atmospheric chamber means in each of the through hole means; ring means in the centerbore of the drillstring sub; fastener means for connecting the plug means to the annular ring means; weight sensor means in each of the through hole means for generating an output in response to at least the parameter of weight on the drill bit.

Maron, R.

1989-04-18T23:59:59.000Z

430

Rotary drilling jar  

SciTech Connect

This patent describes an improved jar for use in freeing well tools and the like stuck in a well bore. The improvement comprises: tubular, inner mandrel means having a downwardly facing shoulder and having an annular groove in an exterior surface located relatively below the shoulder. The annular groove in the inner mandrel means tapers inwardly from an exterior surface of the inner mandrel means. The inner mandrel means are arranged for connection to a conduit when positioned in the well bore; and tubular, outer mandrel means encircling the inner mandrel means and arranged at a lower end for connection to the well to tool and having an upwardly facing abutment engageable with the downwardly facing shoulder.

Loeb, J.B.; Osborne, A.J.; Miglierini, R.A.

1987-05-05T23:59:59.000Z

431

Laser Drilling - Drilling with the Power of Light  

Science Conference Proceedings (OSTI)

Gas Technology Institute (GTI) has been the leading investigator in the field of high power laser applications research for well construction and completion applications. Since 1997, GTI (then as Gas Research Institute) has investigated several military and industrial laser systems and their ability to cut and drill into reservoir type rocks. In this report, GTI continues its investigation with a recently acquired 5.34 kW ytterbium-doped multi-clad high power fiber laser (HPFL). The HPFL represents a potentially disruptive technology that, when compared to its competitors, is more cost effective to operate, capable of remote operations, and requires considerably less maintenance and repair. To determine how this promising laser would perform under high pressure in-situ conditions, GTI performed a number of experiments with results directly comparable to previous data. Experiments were designed to investigate the effect of laser input parameters on representative reservoir rock types of sandstone and limestone. The focus of the experiments was on completion and perforation applications, although the results and techniques apply to well construction and other rock cutting applications. All previous laser/rock interaction tests were performed on samples in the lab at atmospheric pressure. To determine the effect of downhole pressure conditions, a sophisticated tri-axial cell was designed and tested. For the first time, Berea sandstone, limestone and clad core samples were lased under various combinations of confining, axial and pore pressures. Composite core samples consisted of steel cemented to rock in an effort to represent material penetrated in a cased hole. The results of this experiment will assist in the development of a downhole laser perforation prototype tool. In the past, several combinations of laser and rock variables were investigated at standard conditions and reported in the literature. More recent experiments determined the technical feasibility of laser perforation on multiple samples of rock, cement and steel. The fiber laser was capable of penetrating these materials under a variety of conditions, to an appropriate depth, and with reasonable energy requirements. It was determined that fiber lasers are capable of cutting rock without causing damage to flow properties. Furthermore, the laser perforation resulted in permeability improvements on the exposed rock surface. This report discusses the design and development of a customized laser pressure cell; experimental design and procedures, and the resulting data on pressure-charged samples exposed to the laser beam. An analysis provides the resulting effect of downhole pressure conditions on the laser/rock interaction process.

Brian C. Gahan; Samih Batarseh

2005-09-28T23:59:59.000Z

432

Deep drilling data Raft River geothermal area, Idaho | Open Energy  

Open Energy Info (EERE)

drilling data Raft River geothermal area, Idaho drilling data Raft River geothermal area, Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Deep drilling data Raft River geothermal area, Idaho Details Activities (2) Areas (1) Regions (0) Abstract: Stratigraphy and geophysical logs of three petroleum test boreholes in the Raft River Valley are presented. The geophysical logs include: temperature, resistivity, spontaneous potential, gamma, caliper, and acoustic logs. Author(s): Oriel, S. S.; Williams, P. L.; Covington, H. R.; Keys, W. S.; Shaver, K. C. Published: DOE Information Bridge, 1/1/1978 Document Number: Unavailable DOI: 10.2172/6272996 Source: View Original Report Exploratory Well At Raft River Geothermal Area (1975) Exploratory Well At Raft River Geothermal Area (1976) Raft River Geothermal Area

433

U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory...  

Gasoline and Diesel Fuel Update (EIA)

Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Exploratory Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

434

U.S. Footage Drilled for Natural Gas Exploratory and Developmental...  

Gasoline and Diesel Fuel Update (EIA)

and Developmental Wells (Thousand Feet) U.S. Footage Drilled for Natural Gas Exploratory and Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

435

U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Developmental...  

Gasoline and Diesel Fuel Update (EIA)

Developmental Wells (Thousand Feet) U.S. Footage Drilled for Crude Oil, Natural Gas, and Dry Developmental Wells (Thousand Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...