In situ thermal processing of a coal formation using substantially parallel formed wellbores
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United States of America Patent
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Issued Date -
Apr 24, 2003
app pub date -
Apr 24, 2001
filing date -
Apr 24, 2000
priority date (Note) -
Abandoned
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Abstract
Wellbores may be formed in a coal formation. Wellbores may be formed by geosteered drilling and/or by a steerable motor with an accelerometer. Parallel wellbores may be formed using magnetic steering. Heating mechanisms may be disposed within selected wellbores so that heat transfers to at least a portion of the formation during use. Selected wellbores may be production wells that allow for fluid removal from the formation.
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