Liquid fluid loss control additive for oil field cements

E - Fixed Constructions – 21 – B

Patent

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31/10

E21B 33/138 (2006.01) C04B 28/02 (2006.01) C09K 8/46 (2006.01) C09K 8/508 (2006.01) C09K 8/82 (2006.01)

Patent

CA 1246850

Abstract of the Disclosure Liquid fluid loss control additives for oil field cements are provided which have long storage lives without excessive settling and which can be mixed with cement slurries without the formation of gel balls or fish eyes. The liquid additives consist essentially of a liquid hydro- carbon, a hydrophilic water soluble polymer, an organophilic clay suspending agent, an organic sulfonate dispersant, a polyamide amine surfactant for oil wetting the polymer and a surfactant for stripping liquid hydrocarbon from the polymer when contacted with water.

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