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Method and system for increasing oil production from an oil well producing a mixture of oil and gas

  • US 6,032,737 A
  • Filed: 04/07/1998
  • Issued: 03/07/2000
  • Est. Priority Date: 04/07/1998
  • Status: Expired due to Term
First Claim
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1. A method for increasing oil production from an oil well producing a mixture of oil and gas at an elevated pressure through a wellbore penetrating an oil-bearing formation containing an oil-bearing zone and an injection zone, the method comprising:

  • a) separating at least a portion of the gas from the mixture of oil and gas in an auger separator to produce a separated gas and an oil-enriched mixture;

    b) utilizing energy from at least a portion of the mixture of oil and gas to compress at a surface at least a portion of the separated gas to produce a compressed gas having sufficient pressure to be injected into the injection zone;

    c) injecting the compressed gas into the injection zone; and

    d) recovering at least a major portion of the oil-enriched mixture.

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