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Survey of selected agencies conducted to determine the extent to which the nation's coals are adequately characterized

Description: A survey was conducted to determine the extent to which the nation's coals were adequately characterized. Questionnaires were sent to 81 agencies in the coal community selected to form a representative cross section of the organizations concerned with coal characterization. Fifty-nine completed questionnaires were received. Respondents included representatives of the agencies with the longest experience in characterization and those in the best position to know the status of our knowledge … more
Date: October 1, 1977
Creator: Hower, J. M.; Davis, A.; Dolsen, C. P. & Spackman, W.
Partner: UNT Libraries Government Documents Department
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Regional Studies Program. Extraction of North Dakota lignite: environmental and reclamation issues

Description: This study, sponsored by the U.S. Energy Research and Development Administration, addresses the environmental implications of extraction of coal in North Dakota. These implications are supported by details of the geologic and historical background of the area of focus, the lignite resources in the Fort Union coalfield portion. The particular concentration is on the four-county area of Mercer, Dunn, McLean, and Oliver where substantial coal reserves exist and a potential gasification plant site … more
Date: December 1, 1976
Creator: LaFevers, J.R.; Johnson, D.O. & Dvorak, A.J.
Partner: UNT Libraries Government Documents Department
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Demonstration projects for coalbed methane and Devonian shale gas: Final report. [None]

Description: In 1979, the US Department of Energy provided the American Public Gas Association (APGA) with a grant to demonstrate the feasibility of bringing unconventional gas such as methane produced from coalbeds or Devonian Shale directly into publicly owned utility system distribution lines. In conjunction with this grant, a seven-year program was initiated where a total of sixteen wells were drilled for the purpose of providing this untapped resource to communities who distribute natural gas. While co… more
Date: April 1, 1987
Creator: Verrips, A.M. & Gustavson, J.B.
Partner: UNT Libraries Government Documents Department
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Results of the Characterization of an in Situ Coal Gasification Site in the State of Washington

Description: Sandia Laboratories, Lawrence Livermore Laboratory, and the Laramie Energy Technology Center participated in a Department of Energy funded program to select and characterize a potential underground coal gasification test site in the State of Washington. A site in the Centralia-Chehalis coal district, satisfying certain criteria, was selected for characterization. The characterization procedures included surface and borehole techniques and hydrology tests. Geologic structure and coal seam struct… more
Date: January 1, 1980
Creator: Bartel, L. C.; Dobecki, T. L. & Stone, R.
Partner: UNT Libraries Government Documents Department
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Vertical borehole design and completion practices used to remove methane gas from mineable coalbeds

Description: Coalbed gas drainage from the surface in advance of mining has long been the goal of researchers in mine safety. Bureau of Mines efforts to achieve this goal started about 1965 with the initiation of an applied research program designed to test drilling, completion, and production techniques for vertical boreholes. Under this program, over 100 boreholes were completed in 16 different coalbeds. The field methods derived from these tests, together with a basic understanding of the coalbed reservo… more
Date: August 1, 1980
Creator: Lambert, S. W.; Trevits, M. A. & Steidl, P. F.
Partner: UNT Libraries Government Documents Department
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High resolution seismic survey of the Hanna, Wyoming underground coal gasification area

Description: In November 1980 a high resolution seismic survey was conducted at the Department of Energy, Laramie Energy Technology Center's underground coal gasification test site near Hanna, Wyoming. The objectives of the survey were to determine the feasibility of utilizing high resolution seismic technology to locate and characterize underground coal burn zones and to identify shallow geologic faults at the test site. Seismic data acquisition and processing parameters were specifically designed to empha… more
Date: January 1, 1982
Creator: Youngberg, A.D.; Berkman, E. & Orange, A.
Partner: UNT Libraries Government Documents Department
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Geology of the Hanna Formation, Hanna Underground Coal Gasification Site, Hanna, Wyoming

Description: The Hanna Underground Coal Gasification (UCG) study area consists of the SW1/4 of Section 29 and the E1/2SE1/4 of Section 30 in Township 22 North, Range 81 West, Wyoming. Regionally, this is located in the coal-bearing Hanna Syncline of the Hanna Basin in southeast Wyoming. The structure of the site is characterized by beds dipping gently to the northeast. An east-west fault graben complex interrupts this basic trend in the center of the area. The target coal bed of the UCG experiments was the … more
Date: January 1, 1984
Creator: Oliver, R.L. & Youngberg, A.D.
Partner: UNT Libraries Government Documents Department
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Assessment of underground coal gasification in bituminous coals: catalog of bituminous coals and site selection. Appendix A. National coal resource data system: Ecoal, Wcoal, and Bmalyt. Final report, Phase I. [Bituminous coal; by state; coal seam depth and thickness; identification]

Description: Appendix A is a catalog of the bituminous coal in 29 states of the contiguous United States which contain identified bituminous coal resources.
Date: January 31, 1982
Partner: UNT Libraries Government Documents Department
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Characterization of a Potential Underground Coal Gasification Site in the State of Washington

Description: Sandia Laboratories, Lawrence Livermore Laboratory, and the Laramie Energy Technology Center participated in a Department of Energy funded program to select and characterize a potential underground coal gasification test site in the State of Washington. A site in the Centralia-Chehalis coal district, satisfying certain criteria, was selected for characterization. The characterization procedures included surface and borehole techniques and hydrology tests. Geologic structure and coal seam struct… more
Date: January 1, 1980
Creator: Bartel, L. C.; Dobecki, T. L. & Stone, R.
Partner: UNT Libraries Government Documents Department
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Unconventional gas recovery program. Semi-annual report for the period ending September 30, 1979

Description: This document is the third semi-annual report describing the technical progress of the US DOE projects directed at gas recovery from unconventional sources. Currently the program includes Methane Recovery from Coalbeds Project, Eastern Gas Shales Project, Western Gas Sands Project, and Geopressured Aquifers Project.
Date: April 1, 1980
Creator: Manilla, R.D. (ed.)
Partner: UNT Libraries Government Documents Department
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Drilling and early testing of a sidetrack from the slant hole completion test well

Description: During the winter of 1990 to 1991, the Department of Energy evaluated several options to completing the originally-planned slant hole production tests. A decision was made to sidetrack the original hole and to redrill the 60 and 90{degrees} sections. The objectives for drilling the sidetrack to the original slant hole wellbore are as follows: (1) Test high angle and horizontal drilling and completion technologies as an alternative to vertical wells and hydraulic fracture treatments in tight, na… more
Date: January 1, 1992
Creator: Myal, F.R. & Branagan, P.T.
Partner: UNT Libraries Government Documents Department
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Data base for the analysis of compositional characteristics of coal seams and macerals. Part 7. Petrographic variation due to depositional setting of the lower Kittanning seam, western Pennsylvania. Final report

Description: Detailed megascopic and microscopic petrographic analyses were conducted on samples of the Lower Kittanning seam from western Pennsylvania. Relationships were sought between the paleoenvironmental setting of the coal swamp and the vertical and lateral variability of lithotypes, maceral composition and vitrinite types. Megascopically, the four samples collected from the freshwater facies of the seam are similar in appearance and relative lithotype composition, and display no distinct vertical zo… more
Date: January 1, 1984
Creator: Allshouse, S.D. & Davis, A.
Partner: UNT Libraries Government Documents Department
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A novel geotechnical/geostatistical approach for exploration and production of natural gas from multiple geologic strata, Phase 1

Description: This research program has been designed to develop and verify a unique geostatistical approach for finding natural gas resources. The project has been conducted by Beckley College, Inc., and BDM Engineering Services Company (BDMESC) under contract to the US Department of Energy (DOE), Morgantown Energy Technology Center (METC). This section, Volume II, contains a detailed discussion of the methodology used and the geological and production information collected and analyzed for this study. A co… more
Date: May 1, 1991
Creator: Overbey, W. K. Jr.; Reeves, T. K.; Salamy, S. P.; Locke, C. D.; Johnson, H. R.; Brunk, R. et al.
Partner: UNT Libraries Government Documents Department
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Sampling and analyses report for December 1991 semiannual postburn sampling at the RM1 UCG site, Hanna, Wyoming

Description: The Rocky Mountain 1 (RM1) underground coal gasification (UCG) test was conducted from November 16, 1987, through February 26, 1988 at a site approximately one mile south of Hanna, Wyoming. The test consisted of a dual-module operation to evaluate the controlled retracting injection point (CRIP) technology, the elongated linked well (ELW) technology, and the interaction of closely spaced modules operating simultaneously. The test caused two cavities to form in the Hanna No. 1 coal seam and asso… more
Date: January 1, 1992
Creator: Lindblom, S.R.
Partner: UNT Libraries Government Documents Department
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Tracer and air acceptance characterization of a San Juan basin coal

Description: As part of an ongoing effort to develop and assess the feasibility of underground coal gasification in New Mexico, a field study was performed to determine the natural flow characteristics of an undisturbed coal seam. Dewatering, air injection, and tracer experiments were conducted on a two-hole test pattern, spaced 30 ft apart, in a 15-ft-thick seam located about 500 ft below the surface. This was the first field experiment in coal to utilize a newly developed downhole measuring system designe… more
Date: January 1, 1980
Creator: Williams, F. L.; Nuttall, H. E.; Tyner, C. E. & Jacobson, R. D.
Partner: UNT Libraries Government Documents Department
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Inorganic contents of peats

Description: Peat, the precursor of coal, is composed primarily of plant components and secondarily of inorganic matter derived from a variety of sources. The elemental, mineralogic, and petrographic composition of a peat is controlled by a combination of both its botanical and depositional environment. Inorganic contents of peats can vary greatly between geographically separated peat bogs as well as vertially and horizontally within an individual bog. Predicting the form and distribution of inorganic matte… more
Date: February 1, 1988
Creator: Raymond, R. Jr.; Bish, D.L. & Cohen, A.D.
Partner: UNT Libraries Government Documents Department
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Modeling and interpretation of two-phase flow and tracer studies from a subbituminous coal seam in the San Juan basin of New Mexico

Description: Field and modeling studies were performed to characterize two-phase flow within the natural cleat structure of an upper Cretaceous subbituminous coal seam. A two borehole pattern with open completion was used in a study of dewatering and tracer residence time distribution. Air was pumped into a five meter thick seam located about 170 meters below the surface. Krypton 85 was used as the airborne tracer. Air inflow and air and water production rates and tracer arrival times were monitored. The fi… more
Date: January 1, 1980
Creator: Nuttall, H.E. & Travis, B.J.
Partner: UNT Libraries Government Documents Department
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Evaluation of data gathered from unmineable coal seams. Final report

Description: As part of the US Department of Energy's (DOE) programs directed at gas recovery from unconventional sources INTERCOMP Resource Development and Engineering, Inc. (INTERCOMP) is under contract to the Morgantown Energy Technology Center (METC) to provide for the reduction of uncertainties in critical parameters related to the methane recovery from unmineable coals in the United States. To accomplish this objective INTERCOMP has assisted in test site selection, planning, and monitoring when reques… more
Date: June 1, 1982
Partner: UNT Libraries Government Documents Department
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Buried telemetry system for in-situ energy extraction

Description: During an in-situ energy extraction process, a continuous knowledge of the temperature profile through the combustion area is desirable for analysis and control. To provide this data, a telemetry system has been developed that will monitor the thermocouples from beneath the process bed, digitize the data into 12 bit words and store them into memory. Every six hours, the stored data is transmitted laterally through the earth to a receiver outside of the high temperature zone and then sent to the… more
Date: January 1, 1980
Creator: Barnes, D. E. & Caffey, T. W.H.
Partner: UNT Libraries Government Documents Department
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Feasibility of no-proppant stimulation to enhance removal of methane from the Mary Lee Coalbed

Description: One experimental approach to hydraulic stimulation is to use fluid to propagate fractures but not to incorporate solid proppant material in the design. The elimination of solid material negates problems related to wellbore sand proppant influx and allows better fracture height control since extremely low injection rates can be used. The Mary Lee Coalbed was stimulated using a 53,000 gallon no-proppant treatment at a 1,150 foot deep test well located approximately 1,600 feet in advance of mining… more
Date: April 1, 1980
Creator: Lambert, S.W. & Trevits, M.A.
Partner: UNT Libraries Government Documents Department
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Role of UCG in maximizing coal utilization: site specific study

Description: The Department of Energy is sponsoring a project to develop a planning scheme for improving the utilization of coal deposits. This prototype study, called Total Economic Coal Utilization (TECU), is being applied to specific coal reserves within the Centralia-Chehalis District of Washington State. A significant aspect of the study is to determine the potential role for in situ gasification in maximizing the energy recovery and use. The results obtained indicate that UCG could be used to realize … more
Date: January 1, 1980
Creator: Linn, J. K. & Love, S. L.
Partner: UNT Libraries Government Documents Department
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Instrumentation and process control development for in situ coal gasification. Quarterly report, December 1979-March 1980

Description: The analysis of data for the Hanna IV and Hoe Creek in situ coal gasification tests raised questions concerning the fundamental controlling mechanisms of the process. The two main areas of concern are: (1) the air flow patterns; and (2) the initial cavity growth. Sandia National Laboratories is addressing these concerns by developing models of these processes. Results to date are in qualitative agreement with known phenomena. There have also been developments in data handling capability. These … more
Date: June 1, 1980
Creator: Glass, R.E. (ed.)
Partner: UNT Libraries Government Documents Department
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Trace-element geochemistry of coal resource development related to environmental quality and health

Description: This report assesses for decision makers and those involved in coal resource development the environmental and health impacts of trace-element effects arising from significant increases in the use of coal, unless unusual precautions are invoked. Increasing demands for energy and the pressing need for decreased dependence of the United States on imported oil require greater use of coal to meet the nation's energy needs during the next decade. If coal production and consumption are increased at a… more
Date: January 1, 1980
Partner: UNT Libraries Government Documents Department
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Assessment of environmental health and safety issues associated with the commercialization of unconventional gas recovery: methane from coal seams

Description: Potential public health and safety problems and the potential environmental impacts from the recovery of gas from coalbeds are identified and examined. The technology of methane recovery is described and economic and legal barriers to production are discussed. (ACR)
Date: July 1, 1980
Creator: Ethridge, L.J.; Cowan, C.E. & Riedel, E.F.
Partner: UNT Libraries Government Documents Department
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