Method for improving productivity of a well

Details Method for improving productivity of a well Method for improving productivity of a well

1994-08-25

1995-08-22

Novosad, Stephen J.

Wells

Processes

Separating material entering well

166306, 166313, E21B 4338

Patent

active

054431204

ABSTRACT:
A method for improving the productivity of a well by separating and disposing of at least a portion of the water which is produced from a subterranean producing formation. The water is allowed to separate from the produced fluids under the influence of gravity while in the wellbore. The separated water is then disposed without removing it from the wellbore by flowing it into a subterranean disposal formation which has a pressure less than that of said producing formation. Preferably, the well is completed with an inclined wellbore which significantly aids in the gravity separation of the water from the produced fluids (e.g. hydrocarbons).

REFERENCES:
patent: 3167125 (1965-01-01), Bryan
patent: 3195633 (1965-07-01), Jacob
patent: 3363692 (1968-01-01), Bishop
patent: 4296810 (1981-10-01), Price
patent: 4429740 (1984-02-01), Malinchak
patent: 4766957 (1988-08-01), McIntyre
patent: 5335732 (1994-08-01), McIntyre
patent: 5366011 (1994-11-01), Jennings, Jr.
"What's new in artificial lift", Lea and Winkler, World Oil, Mar., 1994, vol. 215 No. 3, p. 51.
"Downhole Injection Pump lowers cost of natural gas well-water disposal", Hart's Oil and Gas World, Apr., 1994 vol. 86 No. 4 p. 38.

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