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Title: Geologic characterization of tight gas reservoirs

Abstract

The objectives of US Geological Survey (USGS) work during FY 89 were to conduct geologic research characterizing tight gas-bearing sandstone reservoirs and their resources in the western United States. Our research has been regional in scope but, in some basins, our investigations have focused on single wells or small areas containing several wells where a large amount of data is available. The investigations, include structure, stratigraphy, petrography, x-ray mineralogy, source-rock evaluation, formation pressure and temperature, borehole geophysics, thermal maturity mapping, fission-track age dating, fluid-inclusion thermometry, and isotopic geochemistry. The objectives of these investigations are to provide geologic models that can be compared and utilized in tight gas-bearing sequences elsewhere. Nearly all of our work during FY 89 was devoted to developing a computer-based system for the Uinta basin and collecting, analyzing, and storage of data. The data base, when completed will contain various types of stratigraphic, organic chemistry, petrographic, production, engineering, and other information that relate to the petroleum geology of the Uinta basin, and in particular, to the tight gas-bearing strata. 16 refs., 3 figs.

Authors:
Publication Date:
Research Org.:
Geological Survey, Denver, CO (USA)
Sponsoring Org.:
USDOE; USDOE, Washington, DC (USA)
OSTI Identifier:
5614026
Report Number(s):
DOE/MC/20422-2963
ON: DE91002009
DOE Contract Number:
AI21-83MC20422
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 02 PETROLEUM; SANDSTONES; GEOLOGY; UINTA BASIN; FRACTURES; PROGRESS REPORT; STRATIGRAPHY; UTAH; DOCUMENT TYPES; FAILURES; FEDERAL REGION VIII; NORTH AMERICA; ROCKS; SEDIMENTARY ROCKS; USA; 030200* - Natural Gas- Reserves, Geology, & Exploration; 020200 - Petroleum- Reserves, Geology, & Exploration

Citation Formats

Law, B.E. Geologic characterization of tight gas reservoirs. United States: N. p., 1990. Web. doi:10.2172/5614026.
Law, B.E. Geologic characterization of tight gas reservoirs. United States. doi:10.2172/5614026.
Law, B.E. Sat . "Geologic characterization of tight gas reservoirs". United States. doi:10.2172/5614026. https://www.osti.gov/servlets/purl/5614026.
@article{osti_5614026,
title = {Geologic characterization of tight gas reservoirs},
author = {Law, B.E.},
abstractNote = {The objectives of US Geological Survey (USGS) work during FY 89 were to conduct geologic research characterizing tight gas-bearing sandstone reservoirs and their resources in the western United States. Our research has been regional in scope but, in some basins, our investigations have focused on single wells or small areas containing several wells where a large amount of data is available. The investigations, include structure, stratigraphy, petrography, x-ray mineralogy, source-rock evaluation, formation pressure and temperature, borehole geophysics, thermal maturity mapping, fission-track age dating, fluid-inclusion thermometry, and isotopic geochemistry. The objectives of these investigations are to provide geologic models that can be compared and utilized in tight gas-bearing sequences elsewhere. Nearly all of our work during FY 89 was devoted to developing a computer-based system for the Uinta basin and collecting, analyzing, and storage of data. The data base, when completed will contain various types of stratigraphic, organic chemistry, petrographic, production, engineering, and other information that relate to the petroleum geology of the Uinta basin, and in particular, to the tight gas-bearing strata. 16 refs., 3 figs.},
doi = {10.2172/5614026},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Dec 01 00:00:00 EST 1990},
month = {Sat Dec 01 00:00:00 EST 1990}
}

Technical Report:

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  • The objectives of US Geological Survey (USGS) work are to conduct geologic research characterizing tight gas-bearing sequences in the western United States. Additional critical objects are to provide geologic consulting and research support for ongoing Multiwell Experiment (MWX) engineering, petrophysical, log-analysis, and well-testing research. The USGS research during the last few years has been in the Greater Green River, Piceance, and Uinta basins of Wyoming, Colorado, and Utah. However, beginning in FY-87 our efforts have been restricted for the most part to the Greater Green River basin. 16 refs., 20 figs.
  • The objectives of US Geological Survey work are to conduct geologic research characterizing tight gas-bearing sequences in the western United States. The USGS research during the last few years has been in the Greater Green River, Piceance Creek, and Uinta basins of Wyoming, Colorado, and Utah. Additional critical objectives are to provide geologic consulting and research support for ongoing Multiwell Experiment (MWX) engineering, petrophysical, log-analysis, and well-testing research. Within these basins our research efforts have been regional in scope. The Greater Green River basin has high priority because most of the Piceance basin studies have been completed or are beingmore » completed, and because the Greater Green River basin has the greatest areal extent and greatest known thicknesses (>10,000 ft) of strata containing dominantly gas-bearing sandstone reservoirs. The Uinta Basin may have greater thicknesses of tight-gas strata, but there are presently no wells that have been drilled through the Cretaceous Mesaverde Group in the deeper parts of the basin. The objectives of these focused investigations are to provide geologic models that can be compared and utilized in tight gas-bearing sequences elsewhere. 18 figs.« less
  • During 1984-1985, Lewin and Associates, Inc., used the Tight Gas Analysis System (TGAS) as a planning and assessment tool for GRI. During this period TGAS was used to support the GRI Tight Gas Reservoirs Program: (1) evaluation of the benefits of the entire program and its subcomponents; (2) detailed analysis of a single formation (the Travis Peak); and (3) fine grain assessment of the role of information in the decision to drill, develop and produce a tight-gas prospect; (4) assistance in selecting RandD tasks that were most likely to achieve program objectives most cost-effectively and in developing a project-management structure.more » RandD planning assistance resulted in more quantifiable program objectives and developed a computerized version of several program components to test its usefulness as a management tool. The program analysis demonstrated that RandD in reservoir diagnostics and stimulation technology would make it possible to achieve significant reductions in the cost of gas while adding sizable new quantities of gas to supply. The work has yielded methodology, data and software that are applicable to industry as a whole in addition to serving GRI's needs.« less
  • During 1985-86, Lewin and Associates, Inc., used the Tight Gas Analysis System (TGAS) to estimate the potential for tight gas and the effects of changes in economics, technology, and resource assessments. During the reporting period, TGAS was; (1) enhanced in its analytical capabilities in terms of fracture propagation modeling, type curve modeling, run-time efficiencies, and economics routines; (2) used to provide refined estimates of economic tight gas potential from the Travis Peak formation; and (3) used to support GRI managers in RandD planning, evaluation, and technology transfer.
  • During 1982 to 1983, Lewin and Associates, Inc. developed the Tight Gas Analysis System (TGAS) as a planning and assessment tool for both GRI and the DOE. During this reporting period Nov. 1983 to Nov. 1984, TGAS was used to support the GRI Tight Gas Reservoirs Project area in three tasks: (1) evaluation of benefits of the entire program and its subcomponents; (2) detailed analysis of a single formation (the Travis Peak); and (3) fine grain assessment of the role of information in the decision to drill, develop and produce a flight gas prospect.