A Comparison of Ground Permeability Changes Before, During, and After Longwall Panel Mine-Bys Under Deep and Shallow Cover

Details

• Personal Author:
  Addis J ; Harris, Marcia L. ; Khademian Z ; Matthews C ; Schatzel, Steven J. ; Zheng Y
• Description:
  Shale gas wells can sometimes drill through coal reserves. Hypothetically, the caving of the gob from longwall coal mines may deform the shale gas well casing and potentially result in a breach. NIOSH researchers studied the permeability of the surrounding ground strata that may affect the potential for an inflow of gas into an underground mine environment. An overview and comparison of measured permeability values under differing cover depths (147 m and 353 m to the Pittsburgh coal seam) and mining cycle phase will be presented and discussed in this report. The findings highlight data-driven experimental evidence that affect the interaction between gas wells extraction and mining operations that may lead to potentially hazardous environments Description provided by NIOSH
• Subjects:
  • Mining
  • Occupational Health
  • Safety
• Keywords:
  • Mining industry
  • Gas flow
  • Longwall mining
  • Geologic strata
  • Coal mines
  • Pillar mechanics
• Series:
  Mining Publications
• Document Type:
  Text
• Genre:
  Proceedings
• Place as Subject:
  Pennsylvania ; Philadelphia Region OSHA
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  PMRD - Pittsburgh Mining Research Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-11
• NIOSHTIC Number:
  nn:20070843
• Citation:
  MineXchange: 2025 SME Annual Conference & Expo, February 23-26, 2025, Denver, Coloardo, preprint 25-001. Englewood, CO: Society for Mining, Metallurgy & Exploration, 2025 Feb; :1-11
• Federal Fiscal Year:
  2025
• Peer Reviewed:
  False
• Source Full Name:
  MineXchange: 2025 SME Annual Conference & Expo, February 23-26, 2025, Denver, Coloardo, preprint 25-001
• Download URL:
  https://stacks.cdc.gov/view/cdc/215742/cdc_215742_DS1.pdf
• File Type:
  [PDF - 1.17 MB]
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:fb8cc20af53324d580fa24edb91adfd1440bc3c6b592e32a2c7b2108626e89a0fa6722baafaff12ff3aa80b362c85c4430ac66ff7742c9eac6791fe934d38c9f