Blast furnace slag transition fluid

Details Blast furnace slag transition fluid Blast furnace slag transition fluid

1993-02-25

1994-04-26

Suchfield, George A.

Wells

Processes

Cementing, plugging or consolidating

166292, 166293, 175 65, E21B 3316

Patent

active

053058313

ABSTRACT:
In a drilling and cementing operation utilizing a lead cementitious slurry made from blast furnace slag and drilling fluid, a lower density transition fluid is utilized between said lead cementitious slurry and a tail Portland cement slurry. In one embodiment, the lead cementitious slurry and the transition fluid slurry are made by introducing blast furnace slag into a flowing stream of drilling fluid.

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