Cementing with blast furnace slag using spacer

Details Cementing with blast furnace slag using spacer Cementing with blast furnace slag using spacer

1992-12-31

1994-08-02

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166292, 166293, E21B 3316

Patent

active

053336909

ABSTRACT:
A spacer fluid containing blast furnace slag is utilized in a well drilling operation. In one embodiment an oil emulsion drilling fluid is displaced using spacer fluid comprising water, blast furnace slag and a surfactant. In another embodiment a spacer fluid comprising blast furnace slag and water is used in the cementing of an annulus surrounding a pipe with a blast furnace slag cementitious slurry.

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