Wells – Processes – Cementing – plugging or consolidating
Patent
1993-06-28
1995-08-08
Suchfield, George A.
Wells
Processes
Cementing, plugging or consolidating
106790, 106791, 166292, E21B 33138
Patent
active
054390567
ABSTRACT:
Drilling fluid is solidified by the incorporation therein of coal slag. In a preferred embodiment lime is also incorporated into said drilling fluid and/or said drilling fluid is a lime drilling fluid. Thus, there is provided a cementitious composition comprising drilling fluid, coal slag and, generally, lime.
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Shell Oil Company
Suchfield George A.
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