06035934 is referenced by 29 patents and cites 14 patents.

A method and system for increasing oil production from an oil well producing a mixture of oil and gas through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone and a selected injection zone, by driving a turbine in the oil well with the mixture of oil and gas; separating at least a portion of the gas from the mixture of oil and gas in the oil well to produce a separated gas and an oil-enriched mixture; driving a compressor with the turbine to compress at least a portion of the separated gas in the oil well to a pressure greater than a pressure in the selected injection zone to produce a compressed gas; injecting the compressed gas into the selected injection zone; and recovering at least a major portion of the oil-enriched mixture.

Title
Method and system for separating and injecting gas in a wellbore
Application Number
9/28624
Publication Number
6035934
Application Date
February 24, 1998
Publication Date
March 14, 2000
Inventor
James L Cawvey
Anchorage
AK, US
John M Klein
Anchorage
AK, US
Jerry L Brady
Anchorage
AK, US
Mark D Stevenson
Anchorage
AK, US
Agent
F Lindsey Scott
Assignee
Atlantic Richfield Company
CA, US
IPC
E21B 43/38
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