Coal bed methane recovery
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United States of America Patent
Stats
-
Mar 20, 2018
Grant Date -
May 26, 2011
app pub date -
Nov 11, 2010
filing date -
Nov 23, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In-situ heating of coal facilitates desorption and diffusion of the methane for production of the methane through a wellbore. Water within fractures of the coal forms an electrical conduit through which current is passed. The heating relies at least in part on resistivity of the water, which thereby preheats the coal for the recovering of the methane.
First Claim
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International Classification(s)
- 2010 Application Filing Year
- E21B Class
- 2242 Applications Filed
- 1882 Patents Issued To-Date
- 83.95 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- E21B Class
- 18.80 % this patent is cited more than
- 7 Age
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