Accelerating set of retarded cement

Details Accelerating set of retarded cement Accelerating set of retarded cement

1990-07-12

1991-04-09

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

106719, 106803, 166291, 166300, E21B 33138, E21B 3314, E21B 3316

Patent

active

050056468

ABSTRACT:
What is disclosed is a method of accelerating the set of a retarded cement. The cement may range from a drilling fluid containing dispersants or retarders that will slow down the set of the drilling fluid when cementitious fluid is added thereto, through overwashing, or treating a retarded primary or remedial cement that may have been injected into fractures or areas within a well to overwashing a plug or any volume of retarded cement that needs to be set in a well.
The specific uses are discussed.

REFERENCES:
patent: 3482634 (1969-12-01), Cox
patent: 3605898 (1971-09-01), Harrison et al.
patent: 4261755 (1981-04-01), Berry et al.
patent: 4276182 (1981-06-01), Beirute
patent: 4419138 (1983-12-01), Popovics
patent: 4502887 (1985-03-01), Tsuda
patent: 4519452 (1985-05-01), Tsau et al.
patent: 4548270 (1985-10-01), Eilers
patent: 4769077 (1988-09-01), Crocker
patent: 4838352 (1989-06-01), Oberste-Padtberg et al.

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