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 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 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methane Control on Longwalls with Cross measure Boreholes Lower Kittanning Coalbed written by Fred Garcia and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Comparisons Between Cross measure Boreholes and Surface Gob Holes written by Tobias W. Goodman and published by . This book was released on 1986 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Cost Comparison of Gob Hole and Cross measure Borehole Systems to Control Methane in Gobs written by Eugene C. Baker and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book New Publications written by United States. Bureau of Mines and published by . This book was released on 1982 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Economic Evaluation of Horizontal Borehole Drilling for Methane Drainage from Coalbeds written by Eugene C. Baker and published by . This book was released on 1986 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Structural Design Considerations for Deep Mine Shafts written by Samuel S. M. Chan and published by . This book was released on 1985 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Information Circular written by and published by . This book was released on 1986 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Subsidence and Structural Damage Over an Abandoned Room and pillar Coal Mine at Hegeler IL written by and published by . This book was released on 1986 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1984 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1984 with total page 1246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
