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Determining The Source Of Longwall Gob Gas
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Book Synopsis Determining the Source of Longwall Gob Gas by : William P. Diamond
Download or read book Determining the Source of Longwall Gob Gas written by William P. Diamond and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four coreholes were drilled (two before and two after mining) at a longwall mine to obtain coal and rock samples from overlying strata to determine their gas content at various times in the mining cycle. Test results indicate that 91 pct of the gas removed from the overlying strata came from coalbeds.
Book Synopsis Determining the Source of Longwall Gob Gas by : William P. Diamond
Download or read book Determining the Source of Longwall Gob Gas written by William P. Diamond and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four coreholes were drilled (two before and two after mining) at a longwall mine to obtain coal and rock samples from overlying strata to determine their gas content at various times in the mining cycle. Test results indicate that 91 pct of the gas removed from the overlying strata came from coalbeds.
Book Synopsis Determining the Source of Longwall Gob Gas by : William P. Diamond
Download or read book Determining the Source of Longwall Gob Gas written by William P. Diamond and published by . This book was released on 1992 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Underground Gob Gas Drainage During Longwall Mining by : Steven J. Schatzel
Download or read book Underground Gob Gas Drainage During Longwall Mining written by Steven J. Schatzel and published by . This book was released on 1982 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of Investigations written by and published by . This book was released on 1992 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Underground Gob Gas Drainage During Longwall Mining by : Steven J. Schatzel
Download or read book Underground Gob Gas Drainage During Longwall Mining written by Steven J. Schatzel and published by . This book was released on 1982 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Gas Flow in Longwall Gobs by :
Download or read book Characterization of Gas Flow in Longwall Gobs written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Institute for Occupational Safety and Health, Office for Mine Safety and Health Research, is investigating the geologic and mining factors influencing the migration of longwall gob gas. One goal of these studies is to optimize methane drainage strategies to reduce the volume of gob gas that reaches the underground workplace. As part of this research effort, longwall gob gas flow paths in a mine operating in the Pittsburgh Coalbed, PA, were investigated using SF6 tracer gas. Tracer gas released into the ventilation airflow underground generally stayed in the bleeder system and was vented at the associated bleeder fan shafts. Tracer gas injected into an inactive (intaking) gob gas venthole migrated to the two inby producing ventholes on the study panel, indicating that all three ventholes were in communication. The tracer gas that was injected into the gob generally stayed in the gob and only migrated to the ventilation system in response to the venthole on the study panel closest to the injection hole going off production. Tracer gas flow velocities in the longwall gob reservoir and factors influencing the production performance of gob gas ventholes in the study area are also discussed.
Book Synopsis Control of Longwall Gob Gas with Cross-measure Boreholes (upper Kittanning Coalbed) by : Alan A. Campoli
Download or read book Control of Longwall Gob Gas with Cross-measure Boreholes (upper Kittanning Coalbed) written by Alan A. Campoli and published by . This book was released on 1983 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mine Ventilation written by E. De Souza and published by CRC Press. This book was released on 2002-01-01 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume showcases all aspects of the science and engineering of mine ventilation and health and safety, with special focus on the applied aspects of mine ventilation practice. Papers span the spectrum of mine ventilation and air conditioning.
Book Synopsis Behavior of Simulated Longwall Gob Material by : Deno M. Pappas
Download or read book Behavior of Simulated Longwall Gob Material written by Deno M. Pappas and published by . This book was released on 1993 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal written by National Research Council and published by National Academies Press. This book was released on 2007-12-21 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal will continue to provide a major portion of energy requirements in the United States for at least the next several decades. It is imperative that accurate information describing the amount, location, and quality of the coal resources and reserves be available to fulfill energy needs. It is also important that the United States extract its coal resources efficiently, safely, and in an environmentally responsible manner. A renewed focus on federal support for coal-related research, coordinated across agencies and with the active participation of the states and industrial sector, is a critical element for each of these requirements. Coal focuses on the research and development needs and priorities in the areas of coal resource and reserve assessments, coal mining and processing, transportation of coal and coal products, and coal utilization.
Book Synopsis Effects of Horizontal Stress Related to Stream Valleys on the Stability of Coal Mine Openings by :
Download or read book Effects of Horizontal Stress Related to Stream Valleys on the Stability of Coal Mine Openings written by and published by . This book was released on 1992 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Publications by : United States. Bureau of Mines
Download or read book New Publications written by United States. Bureau of Mines and published by . This book was released on 1972 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis List of Bureau of Mines Publications and Articles ... with Subject and Author Index by : United States. Bureau of Mines
Download or read book List of Bureau of Mines Publications and Articles ... with Subject and Author Index written by United States. Bureau of Mines and published by . This book was released on 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bureau of Mines Publications and Articles ... (with Subject and Author Index) by : United States. Bureau of Mines
Download or read book Bureau of Mines Publications and Articles ... (with Subject and Author Index) written by United States. Bureau of Mines and published by . This book was released on 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minerals Today written by and published by . This book was released on 1993 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bureau of Mines Research by : United States. Bureau of Mines
Download or read book Bureau of Mines Research written by United States. Bureau of Mines and published by . This book was released on 1989 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
