Wells – Processes – Cyclic injection then production of a single well
Patent
1979-05-23
1981-02-10
Novosad, Stephen J.
Wells
Processes
Cyclic injection then production of a single well
166272, E21B 4324, E21B 4330
Patent
active
042496047
ABSTRACT:
High viscosity petroleum, such as heavy oils and tar, is recovered by first drilling a number of production wells in a conventional pattern, then drilling a plurality directionally drilled injection wells extending radially inward toward each producing well, such that the surface location of each injection well is not less than the normal spacing between production wells, and the bottom hole location approaches the production well closely enough that fluid communication between the two wells can be established by the injection of heated fluids into the injection well. The petroleum is then recovered from the producing well by conventional thermal means.
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Kulason Robert A.
Novosad Stephen J.
Park Jack H.
Ries Carl G.
Texaco Inc.
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