Thixotropic cementing compositions

Details Thixotropic cementing compositions Thixotropic cementing compositions

C - Chemistry, Metallurgy

04

B

261/53

C04B 7/02 (2006.01) C04B 31/36 (1980.01)

Patent

CA 1062287

ABSTRACT OF THE DISCLOSURE A thixotropic cementing composition for use in oil and gas wells comprises a hydraulic cement slurry including as an additive a complex reaction product of a water soluble carboxy- alkyl, hydroxyalkyl or mixed carboxyalkyl hydroxyalkyl ether of cellulose, and a polyvalent metal salt, for example a reaction product of hydroxyethylcellulose and zirconyl chloride.

246315

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