Texas United Chemical Company, LLC

Carolina Trejo Rangel

James W Dobson, Jr

Shauna Leigh Hayden

Disclosed is a hydrophilic, water soluble polymer concentrate for addition to aqueous liquids to enhance the properties thereof, particularly to increase the viscosity or decrease the fluid loss of well drilling and servicing fluids, the concentrate comprising a hydrophobic, water insoluble liquid, an organophilic clay suspension agent, the water soluble polymer, and a stabilizing agent comprising one or more acids in an amount from about 0.001% to about 1.5%, one or more anionic surfactants in an amount from about 0.001% to about 1.0%, one or more nonionic surfactants in an amount from 0.001% to about 0.625% and, from about 0% to about 0.75% of one or more water soluble organic liquids, wherein the total concentration of the stabilizing agent is from about 0.1% to about 2.5%, these percentages being based on the weight of the concentrate. Preferably the stabilizing agent is a microemulsion comprising the acid(s), the anionic surfactant(s), the nonionic surfactant(s), and the water soluble organic liquid(s), and further comprising from about 0.0005% to about 1.0% of one or more water insoluble solvents, and from about 0.001% to about 2.0% water.

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Cypress, TX, United States of America

Carolina Trejo Rangel