Polyamine fluid loss additive for oil well cements

Details Polyamine fluid loss additive for oil well cements Polyamine fluid loss additive for oil well cements

1983-06-09

1984-11-13

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106314, 166293, C04B 735

Patent

active

044823835

ABSTRACT:
An aqueous cement composition is shown for cementing the annular space between a pipe and the surrounding bore in a well. The cement composition includes a hydraulic cement, water present in an amount effective to produce a pumpable slurry, a polyamine fluid loss additive, and a sulfonated polymer. By neutralizing the polyamine to a pH of approximately 7, improved free water and fluid loss properties are imparted to the system.

REFERENCES:
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patent: 3500929 (1970-03-01), Eilers et al.
patent: 3511314 (1970-05-01), Scott et al.
patent: 3878895 (1975-04-01), Wieland et al.
patent: 4007128 (1977-02-01), Poklaki
patent: 4013568 (1977-03-01), Fischer et al.
patent: 4088583 (1978-05-01), Pyle et al.

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