Non-clay-reactive drilling fluid
First Claim
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1. A DRILLING FLUID COMPRISING WATER, SUSPENDED SOLIDS, A MINOR AMOUNT OF A WATER-SOLUBLE SALT OF A WATER-SOLUBLE POLYAMINE SUFFICIENT TO RENDER THE DRILLING-FLUID FILTRATE SUBSTANTIALLY NON-CLAY-REACTIVE, AND A MINOR AMOUNT OF AT LEAST ONE CARBOXYLATED POLYMER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMMONIUM CARBOXYMETHYLCELLULOSES AND POLYACRYLATES, SUFFICIENT TO RENDER THE FLUIDLOSS, VISCOSITY, AND GEL STRENGHT OF SAID FLUID SATISFACTORY FOR DRILLING.
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1 Claim
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1. A DRILLING FLUID COMPRISING WATER, SUSPENDED SOLIDS, A MINOR AMOUNT OF A WATER-SOLUBLE SALT OF A WATER-SOLUBLE POLYAMINE SUFFICIENT TO RENDER THE DRILLING-FLUID FILTRATE SUBSTANTIALLY NON-CLAY-REACTIVE, AND A MINOR AMOUNT OF AT LEAST ONE CARBOXYLATED POLYMER SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMMONIUM CARBOXYMETHYLCELLULOSES AND POLYACRYLATES, SUFFICIENT TO RENDER THE FLUIDLOSS, VISCOSITY, AND GEL STRENGHT OF SAID FLUID SATISFACTORY FOR DRILLING.
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Current AssigneeFrank O. Jones Jr
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Original AssigneeFrank O. Jones Jr
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InventorsJones, Frank O. Jr.
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Application NumberUS03/611,092Time in Patent Office874 DaysField of SearchUS Class Current507/113CPC Class CodesC09K 8/24 Polymers
