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Steam generation from low quality feedwater

  • US 4,398,603 A
  • Filed: 01/07/1981
  • Issued: 08/16/1983
  • Est. Priority Date: 01/07/1981
  • Status: Expired due to Fees
First Claim
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1. A method of producing steam, comprising:

  • (a) introducing a feedwater stream into a contactor vessel;

    (b) introducing superheated steam into said contactor vessel;

    thereby(c) contacting said superheated steam with said feedwater;

    thereby(d) producing saturated produced steam in said contactor vessel and precipitating minerals from said feedwater in said contactor vessel;

    (e) superheating at least a portion of said produced steam in a superheater thereby generating additional superheated steam;

    (f) recycling at least a portion of said additional superheated steam to said contactor vessel; and

    (g) flowing another portion of said produced steam to a well, and introducing said other portion of said produced steam into said well to steam flood an underground formation intersected by said well.

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