Wells – Processes – Cementing – plugging or consolidating
Patent
1998-10-21
2000-11-28
Bagnell, David
Wells
Processes
Cementing, plugging or consolidating
175 72, E21B 3313, C09K 700
Patent
active
061522279
ABSTRACT:
Drilling fluids are designed for drilling and cementing through shallow water flows and unconsolidated formations. Such drilling fluids utilize hollow microspheres to increase the volume of the drilling fluid without adding too much weight to the drilling fluid. The drilling fluid is also designed to employ an admixture of silicate, high surface area fibrous material, deformable graphite particles, and an activatable cementitious material to stabilize unconsolidated formations and form a tough filter cake that will bond with the cement casing.
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Lawson Jimmie B.
Whitfill Donald L.
Bagnell David
Baroid Technology Inc.
Dougherty Jennifer R
Roddy Craig W.
Tripp Karen B.
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