The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2000
Filed:
Feb. 24, 1998
Mark D Stevenson, Anchorage, AK (US);
Jerry L Brady, Anchorage, AK (US);
John M Klein, Anchorage, AK (US);
James L Cawvey, Anchorage, AK (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
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.