Viscous oil production using electrical current heating and lateral drain holes
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United States of America Patent
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Dec 25, 1984
Grant Date -
N/A
app pub date -
Dec 12, 1983
filing date -
Dec 12, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Improved electrical power utilization and increased oil production per producing well are achieved by specially completing a production well, applying electrical current through the production well to a subsurface formation, and producing oil from said formation. The production well extends essentially vertically from the surface and has one or more drain holes, preferably cased with tubular steel, extending laterally from the longitudinal vertical axis of the wellbore and into and traversing a part of the oil bearing formation. The length of the producing well traversing and being in fluid communication with the formation being substantially greater than the thickness of the oil bearing formation.
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