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Methods and systems for producing fluid from an in situ conversion process

  • US 8,230,927 B2
  • Filed: 05/16/2011
  • Issued: 07/31/2012
  • Est. Priority Date: 04/22/2005
  • Status: Expired due to Fees
First Claim
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1. A method, comprising:

  • using a plurality of heat sources to heat a portion of a formation;

    allowing formation fluid to flow to a sump located below the heated portion of the formation in a production well; and

    pumping formation fluid in the sump to remove a portion of the formation fluid from the formation, wherein pumping formation fluid comprises cyclically;

    allowing formation fluid into a lift chamber in the sump;

    inhibiting formation fluid from entering the lift chamber;

    allowing lift gas to enter the lift chamber;

    forcing the formation fluid in the lift chamber out of the lift chamber and out of the formation with the lift gas; and

    inhibiting lift gas from entering the lift chamber.

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