Cementing composition and method using phosphonated polymers to

Details Cementing composition and method using phosphonated polymers to Cementing composition and method using phosphonated polymers to

1993-05-06

1994-08-09

Group, Karl

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106785, 106790, 106819, 106823, C04B 2216

Patent

active

053363167

ABSTRACT:
An oil and gas well cementing composition and method is shown utilizing hydraulic cement, water and an additive having pendant phosphonate groups on a polymeric backbone. The additive provides improved fluid loss and settling characteristics while maintaining desirable viscosity and setting time characteristics. Pendant phosphonate groups are added to the polymer by adding about 0.2% to about 10.0% by weight phosphonic acid either during or after polymerization.

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patent: 5028341 (1991-07-01), Liao et al.

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