Compounds and method for generating a highly efficient membrane in water-based drilling fluids

Compounds and method for generating a highly efficient membrane in water-based drilling fluids

A method is disclosed that affords improved stability to wellbores during drilling in argillaceous formations with water-based drilling fluids. The method comprises adding to the drilling fluid a compound of the invention having the capacity in water to generate a highly efficient membrane on argill...

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Hauptverfasser: Mody, Fersheed K, Pober, Kenneth W, Tan, Chee P, Drummond, Calum J, Georgaklis, George, Wells, Darrell
Format: Patent
Sprache:eng
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creator Mody, Fersheed K
Pober, Kenneth W
Tan, Chee P
Drummond, Calum J
Georgaklis, George
Wells, Darrell
description A method is disclosed that affords improved stability to wellbores during drilling in argillaceous formations with water-based drilling fluids. The method comprises adding to the drilling fluid a compound of the invention having the capacity in water to generate a highly efficient membrane on argillaceous materials. The compound is soluble in the drilling fluid at least at the pH at which the compound is added to the drilling fluid or exists in the drilling fluid, but is insoluble in the water in the pores of the argillaceous formations, or at least at the pH of the water in such pores.
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title Compounds and method for generating a highly efficient membrane in water-based drilling fluids
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