Wells – Processes – Distinct – separate injection and producing wells
Patent
1978-05-22
1980-07-01
Guynn, Herbert B.
Wells
Processes
Distinct, separate injection and producing wells
166307, 252 855C, E21B 4327
Patent
active
042102057
ABSTRACT:
Significant improvement in the recovery of hydrocarbons from a subterranean hydrocarbon-bearing calcareous formation is accomplished by injecting into the formation via an injection well drilled into a formation communicating with an adjacent producing well and containing acid-soluble components which may or may not have water-sensitive clays and shales included therein, a composition comprising an aqueous solution of a mineral acid having dissolved therein a small amount of a vinylpyrrolidone terpolymer solution whereupon the acid solution reacts with the acid-soluble components of the formation creating passageways or enlarging existing passageways thus facilitating the flow of fluids therein and thereby increasing the recovery of hydrocarbons from the formation through the adjacent producing well. Optionally, the injected composition may be saturated with natural gas at the injection pressure.
REFERENCES:
patent: 2596137 (1952-05-01), Fast
patent: 3679000 (1972-07-01), Kaufman
patent: 3749169 (1973-07-01), Tate
patent: 3791446 (1974-02-01), Tate
patent: 3916994 (1975-11-01), Maddox et al.
patent: 3923666 (1975-12-01), Dill
Allen Joseph C.
Tate Jack F.
Guynn Herbert B.
Hunter Walter D.
Ries Carl G.
Texaco Inc.
Whaley Thomas H.
LandOfFree
Secondary recovery process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Secondary recovery process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary recovery process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-295564