Determination of acrylic polymer concentrations in drilling fluid

Authors: A.A. Zhivaev (IKF-Services ZAO, RF, Volzhsky), S.V. Vasilchenko (M-I DRILLING FLUIDS U.K. LIMITED, RF, Moscow), S.V. Medentsev (M-I DRILLING FLUIDS U.K. LIMITED, Kazakhstan, Almaty)
Key words: partially hydrolyzed polyacrylamide, acrylamide, sodium acrylate, copolymer, concentration, determination, drilling fluid.

The new method of quantitative determination of acrylamide and sodium acrylate copolymers in a non-dispersed water-based drilling fluid is developed and verified. The advantage of the method constructed is a possibility to measure the concentrations of partially hydrolyzed polyacrylamide and sodium polyacrylate having different composition and molecular weight. The concentrations of both polymers can be measured in a mud simultaneously. The method does not require complex lab equipment and can be recommended for use at a rig.

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