Fluid loss control in oil field cements

Details Fluid loss control in oil field cements Fluid loss control in oil field cements

1984-09-19

1986-12-02

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106314, 166293, C04B 735

Patent

active

046262857

ABSTRACT:
A cement fluid loss composition which comprises an aqueous slurry of about 35 to about 90 weight percent of water based on weight percent of dry cement; and about 0.1 to about 2 weight percent of a terpolymer based on weight percent of dry cement, said terpolymer having the formula: ##STR1## wherein x is about 40 to about 98 mole %, y is about 1 to about 50 mole %, z is about 1 to about 50 mole %, y is equal to z, A is about 1 to about 50 mole %, wherein A, y and z are less than 60 mole % and M is selected from the group consisting of amines and a metallic cation being selected from the group consisting of lead, iron, aluminum, Groups IA, IIA, IVA, VIA, VIIA, VIIIA, IB and IIB of the Periodic Table of Elements.

REFERENCES:
patent: 3931096 (1976-01-01), Guilbault et al.
patent: 3943996 (1976-03-01), Guilbault et al.
patent: 4076699 (1978-02-01), Grimaud et al.
patent: 4393939 (1983-07-01), Smith et al.

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