Report of Investigations 7968: Degasification of the Mary Lee Coalbed Near Oak Grove, Jefferson County, Ala., by Vertical Borehole: in Advance of Mining

Details

• Journal Article:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 7968
• Personal Author:
  Elder, Curtis H. ; Deul, Maurice
• Description:
  A 5-hole pattern was drilled from the surface at a site near Oak Grove, Jefferson County, Alabama, to degasify the gassy Mary Lee coalbed in advance of mining. Gas and water production was monitored for 1 year, 4 months to allow gas flow to stabilize fully. A thickened water stimulation treatment was designed and applied in 1 hole of the pattern to evaluate this degasification technique for the Mary Lee coalbed. A gas production rate of 70,000 ft3/day after stimulation treatment indicates that the use of vertical boreholes coupled with hydraulic fracturing in advance of mining the Mary Lee coalbed would provide for more rapid degasification and could provide a possible source of natural gas. Description provided by NIOSH
• Subjects:
  • Coal
  • Coal Mining
  • Engineering
  • Mining
  • Occupational Health
  • Safety
• Keywords:
  • Mine-gases; Mining-industry; Methanes; Methane-drainage; Methane-control; Explosive-gases; Explosive-atmospheres; Underground-mining; Coal-mining; Control-technology; Engineering-controls
• Source:
  Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI-7968, 1974 Jan; :1-21
• Series:
  Mining Publications ; NIOSH Numbered Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Alabama ; OSHA Region 3 ; OSHA Region 4 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PRC - Pittsburgh Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  25 pdf pages
• NIOSHTIC Number:
  nn:10000666
• NTIS Accession Number:
  PB-237035
• CAS Registry Number:
  • Methane (CAS RN 74-82-8)
• Federal Fiscal Year:
  1974
• Peer Reviewed:
  False
• Download URL:
  https://stacks.cdc.gov/view/cdc/9232/cdc_9232_DS1.pdf
• File Type:
  [PDF - 766.87 KB]
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:8d24286e032f15627e1ff77fa84128e3d03d129c76ab4c06de2b4818d48c00d767b2cdd0bb2cd56c96647c828a6d05b0f6f85c7d065c4f17dfe5f6320ef46277