Wells – Processes – Distinct – separate injection and producing wells
Patent
1978-02-13
1979-08-07
Novosad, Stephen J.
Wells
Processes
Distinct, separate injection and producing wells
166274, 166282, 252855C, E21B 4322, E21B 4327
Patent
active
041634764
ABSTRACT:
Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing formation is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing sandstone and clay components, and aqueous solution of an acid such as hydrochloric acid and a fluorine-containing acid or salt and having dissolved therein an oxyalkylated acrylamido alkanesulfonic acid polymer whereupon the acid solution reacts with the acid soluble components of the formation creating passageways thus facilitating the flow of fluids therein and thereby increasing the recovery of hydrocarbons from the formation through the adjacent production well.
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patent: 4079011 (1978-03-01), Tate
Hunter Walter D.
Novosad Stephen J.
Ries Carl G.
Suchfield George A.
Texaco Inc.
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