Completion Fluid for Reducing Friction Between Metal Surfaces
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United States of America Patent
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Aug 11, 2016
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Mar 30, 2011
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Abstract
A liquid mixture reduces the friction between two surfaces, at least one of which is moving with respect to the other such as tubing moving within the casing of an oil or gas well. The mixture includes an oil, a suspending agent, polymer particles and a surfactant.
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