Method for producing carbon dioxide from subterranean formations

Details Method for producing carbon dioxide from subterranean formations Method for producing carbon dioxide from subterranean formations

1979-05-10

1980-11-25

Novosad, Stephen J.

Wells

Processes

Separating material entering well

166 68, E21B 4316

Patent

active

042352894

ABSTRACT:
A method for producing substantially pure carbon dioxide in a single phase at the surface from a subterranean formation. A pump means, e.g., electrically driven, submergible, centrifugal pump system, is positioned downhole in a carbon dioxide production well. The carbon dioxide flows from the formation to the inlet of the pump means wherein the carbon dioxide is compressed to raise the pressure to values greater than the critical pressure of the produced carbon dioxide plus the amount of pressure that the carbon dioxide will lose due to (a) the static fluid head above the pump means and (b) flow friction from the pump means to a central processing and compression station on the surface. By so boosting the pressure within the well, the carbon dioxide will be produced at the surface at a pressure greater than the critical pressure of the produced carbon dioxide, thereby insuring the carbon dioxide will be in a single phase, supercritical state.

REFERENCES:
patent: 3442332 (1969-05-01), Keith
patent: 3887008 (1975-06-01), Canfield
patent: 4007787 (1977-02-01), Cottle
Frick, Petroleum Production Handbook, vol. 1, Mathematics and Production Equipment, McGraw-Hill Book Co., Inc., N.Y., 1962, pp. 13-1 to 13-9.
Environmental Impact Assessment for the Wasson Field-Denver Unit CO.sub.2 Project (Draft), Woodward-Clyde Consultants, Jul. 1978, pp. 1-1 to 1-29.
Renfro, "Sheep Mountain CO.sub.2 Production Facilities-A Conceptual Design", SPE 7796, presented at 1979 Production Operations Symposium of SPE of AIME, Oklahoma City, Okla., Feb. 25-27, 1979, 10 pages.

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