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Methods of generating gas in and foaming well cement compositions

  • US 6,858,566 B1
  • Filed: 05/31/2002
  • Issued: 02/22/2005
  • Est. Priority Date: 05/31/2002
  • Status: Expired due to Fees
First Claim
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1. A method of generating gas in a cement composition comprising the steps of:

  • providing the cement composition comprising a hydraulic cement, water, and an oxidizing agent;

    providing an aqueous solution or dispersion that comprises at least one gas generating chemical; and

    contacting the cement composition downstream of at least one cement pump with the aqueous solution or dispersion so that a gas is generated in the cement composition.

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