Results 1 - 7 of 7

• Cross Formational Flow of Water into Coalbed Methane Reservoirs: Controls on Relative Permeability Curve Shape and Production Profile
  3/1/2017 - Peer reviewed journal articles
  This article by NIOSH investigates the impact of water flow from an external source into coalbed on production performance and also on reservoir variables.
• Guidelines for Permitting, Construction, and Monitoring of Retention Bulkheads in Underground Coal Mines
  6/1/2008 - Information Circulars, Safety guidelines, tips, and checklists
  The guidelines in this report are to be used as a tool to identify areas or conditions that could impact the long-term stability of an underground fluid retention system and to give direction in addressing these situations.
• The Effects of Water Emulsified Fuel on Diesel Particulate Matter Concentrations in Underground Mines
  6/1/2006 - Conference papers
  The ambient diesel particulate matter (DPM) concentrations (at the intakes and exhausts of the mine) was evaluated as an entire vehicle fleet of a stone mine switched from using 35% biodiesel to a water-emulsified fuel (PuriNOx).
• Discharge Water Handling and Treatment: Problems and Solutions at a Large Pittsburgh Seam Coal Mine
  2/1/2001 - Conference papers
  A large Pittsburgh seam longwall mine had begun to develop in a different direction from its original portal area. Several options were investigated to handle the anticipated discharge water required for continued use of the original portal area.
• Evaluation of Two-Phase Spray System for Airborne Dust Control in a Longwall Gallery
  9/1/2000 - Conference papers
  The increased effectiveness of a two-phase spray system (TPSS) over a single-phase system (SPSS) for dust suppression is reported in several laboratory studies.
• Environmental Impacts of Cemented Mine Waste Backfill
  1/1/1996 - Reports of Investigations
  Researchers at the U. S. Bureau of Mines conducted investigations to evaluate the potential for ground water contamination by mine waste used as backfill.
• Modeling the Effects of Longwall Mining on the Ground Water System
  1/1/1995 - Reports of Investigations
  A hydrologic-subsidence investigation was performed to evaluate the effects of longwall mining on the local groundwater regime through field monitoring and numerical modeling.