Carbon-dioxide-assisted production from extensively fractured re

Details Carbon-dioxide-assisted production from extensively fractured re Carbon-dioxide-assisted production from extensively fractured re

1976-01-09

1977-08-16

Purser, Ernest R.

Wells

Processes

Distinct, separate injection and producing wells

166305R, E21B 4326

Patent

active

040420299

ABSTRACT:
In an oil reservoir which is extensively fractured, the amount of oil recovered is increased by forming gaseous and liquid layers within the fracture network, flowing gaseous CO.sub.2 into the gaseous layer, and producing liquid which contains oil from the liquid layer. The rates and locations of those injections and productions are correlated to keep the interface between the gaseous and liquid layers at selected depths.

REFERENCES:
patent: 2936030 (1960-05-01), Allen
patent: 3120265 (1964-02-01), Allen
patent: 3193006 (1965-07-01), Lewis
patent: 3405761 (1968-10-01), Parker
patent: 3653438 (1972-04-01), Wagner
patent: 3841406 (1974-10-01), Burnett
patent: 3845821 (1974-11-01), Allen et al.

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