E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/27
E21B 43/16 (2006.01) E21B 43/12 (2006.01) E21B 43/34 (2006.01)
Patent
CA 1125168
A B S T R A C T 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, sub- mergible, 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.
351006
Gowling Lafleur Henderson Llp
Mobil Oil Corporation
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