Cement compositions for cementing of wells enabling gas...

Details Cement compositions for cementing of wells enabling gas... Cement compositions for cementing of wells enabling gas...

E - Fixed Constructions

21

B

31/16

E21B 33/138 (2006.01) C04B 24/20 (2006.01) C04B 28/02 (2006.01) C09K 8/42 (2006.01) C09K 8/46 (2006.01)

Patent

CA 1261606

Cement Compositions for Cementing of Wells Enabling Gas Channelling in the Cemented Annulus to be Inhibited Right-Anqle-Setting ABSTRACT OF THE DISCLOSURE The cement compositions according to the invention are designed for cementing wells, in particular oil and gas or geothermal wells, and for withstanding very high temperatures. A combination of styrene-butadiene latex and a polyoxyethylenated nonylphenol stabilizer of this latex is provided. Cement sets at a right angle and gas migration in the annulus is prevented.

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