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Alumina wellbore cement composition

  • US 5,488,991 A
  • Filed: 10/24/1994
  • Issued: 02/06/1996
  • Est. Priority Date: 10/24/1994
  • Status: Expired due to Term
First Claim
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1. A high alumina wellbore cementing composition comprising:

  • a) high alumina cement; and

    b) a polyacrylic acid phosphinate having a molecular weight of about 3800 in an amount effective to prevent gelation of the cementing composition for a time period of at least three hours.

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