The atlas of major Appalachian gas plays. Final report

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This project will evaluate the technical, economic and environmental feasibility of filling abandoned underground mine voids with alkaline, advanced coal combustion wastes. Both pneumatic and hydraulic injection methods will be investigated. Success will be measured in terms of technical feasibility of the approach (i.e. % void filling), cost, environmental benefits (acid mine drainage and subsidence control) and environmental impacts (noxious ion release). Phase 1 is concerned with the development of the grout and a series of predictive models. Phase 1 will also redesign a pneumatic ejector, that was developed to stow limestone, to efficiently stow FBC ash. Phase 2 is ... continued below

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226 p.

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Creator: Unknown. February 1, 1997.

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Description

This project will evaluate the technical, economic and environmental feasibility of filling abandoned underground mine voids with alkaline, advanced coal combustion wastes. Both pneumatic and hydraulic injection methods will be investigated. Success will be measured in terms of technical feasibility of the approach (i.e. % void filling), cost, environmental benefits (acid mine drainage and subsidence control) and environmental impacts (noxious ion release). Phase 1 is concerned with the development of the grout and a series of predictive models. Phase 1 will also redesign a pneumatic ejector, that was developed to stow limestone, to efficiently stow FBC ash. Phase 2 is a small scale field test at Anker Energy`s Fairfax mine. An inactive panel will be used to evaluate flow, strength, and pressure requirements for hydraulic (grout) injection. The Phase 2 pneumatic injection activities will take place at an Anker Energy mine in Preston County, West Virginia. Air flow requirements, pressure requirements, stowing rate (tons per hour), and stowing efficiency (distance blown) will be determined. Phase 3 is to take 26 months and will be a full scale test at Anker`s eleven acre Long Ridge mine site. The mine will be filled using both pneumatic and hydraulic injection methods. It is expected that the FBC ash will replace what is now an acid mine pool with an alkaline solid so that the ground water will tend to flow around rather than through the previously mined areas. The project will demonstrate whether FBC ash can be successfully disposed of in underground mines.

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226 p.

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OSTI as DE97005441

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  • Other Information: PBD: Feb 1997

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  • Other: DE97005441
  • Report No.: DOE/MC/28176--5727
  • Grant Number: FC21-91MC28176
  • DOI: 10.2172/587943 | External Link
  • Office of Scientific & Technical Information Report Number: 587943
  • Archival Resource Key: ark:/67531/metadc691718

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Office of Scientific & Technical Information Technical Reports

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  • February 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 10, 2015, 9:57 p.m.

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The atlas of major Appalachian gas plays. Final report, report, February 1, 1997; United States. (digital.library.unt.edu/ark:/67531/metadc691718/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.