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AssigneeHalliburton Company
InventorsDralen T. Terry, Garland W. Davis, Bobby J. King, Jiten Chatterji, David D. Onan, Patty L. Totten
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The present invention provides cementitious well drilling fluids and methods of drilling subterranean well bores. The drilling fluids are basically comprised of water, a water viscosity increasing material and a cementitious material which when deposited on the walls of the well bore as a part of the filter cake thereon consolidates the filter cake into a stable mass that readily bonds to a cementitious material slurry subsequently placed in the well bore. The methods of drilling a subterranean well bore are basically comprised of the steps of preparing a drilling fluid of the invention and drilling a subterranean well bore using the drilling fluid.
An improved drilling fluid for use in drilling a subterranean well bore which forms fluid loss reducing filter cake on the walls of the well bore comprising:
An improved method of drilling a subterranean well bore comprising the steps of:
Dependencies are inferred from the claim text.