Undersea integrated repressurization system and method

Details Undersea integrated repressurization system and method Undersea integrated repressurization system and method

1994-04-29

1995-10-24

Dang, Hoang C.

Wells

Submerged well

Means removably connected to permanent well structure

166267, 210170, E21B 4336, E21B 4340

Patent

active

054602270

ABSTRACT:
An undersea integrated repressurization system includes a first undersea separator (1) on the sea bottom (2) at which output from one or more wells (A, B, C and D) is collected with gas flowing through a low pressure gas line (3) to production platform (4) and oil flowing to a repressurization well (5). A power gas line (6) extends from compressor (7) on production platform (4) for injection of gas into the lower end of a pipe adjacent the bottom of the repressurization well (5), through an opening (8) whereby the oil and gas rise through the pipe to a second undersea separator (9) on the sea bottom (2). The separated oil then enters oil pipeline (10) along which the oil flows and the separated gas enters a high pressure gas pipeline (11) which carries the gas, both leading to a production platform (4).

REFERENCES:
patent: 3608630 (1971-09-01), Wooden et al.
patent: 4527632 (1985-07-01), Chandot
patent: 4705114 (1987-11-01), Schroeder et al.
patent: 4793418 (1988-12-01), Wheeler et al.
patent: 4982794 (1991-01-01), Houot

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