Aqueous cement compositions incorporating particles that are activated to control rheology when water soluble portions of the particles are released in the presence of water
作者： Cole Witham , Michael Poindexter , Roger Kuhlman , Michael Radler , Jorg Theuerkauf
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摘要: The present invention provides strategies for improved control of fluid loss, hydration, settling, and separation aqueous cementing compositions over a wide temperature time range. is based at least in part upon water-effusing particles used as additives the compositions, wherein are activated to rheology when water soluble portions released presence water.
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