Lighten cement slurries

Details Lighten cement slurries Lighten cement slurries

C - Chemistry, Metallurgy

04

B

C04B 38/00 (2006.01) C04B 7/345 (2006.01) C04B 28/02 (2006.01) C09K 8/46 (2006.01) E21B 33/05 (2006.01)

Patent

CA 2358655

The present invention relates to the cementation of a well, notably an oil well, by means of a low- density grout. The slurry comprises cement, at least one mineral filler, water, a determined amount of an acrylic type resin and possibly a preferably hydrophilic/hydrophobic dispersing type polymer.

La présente invention concerne la cimentation d'un puits, notamment un puits pétrolier, à l'aide d'un coulis de faible densité. Le laitier comporte du ciment, au moins une charge minérale, de l'eau, une quantité déterminée d'une résine de type acrylique, et éventuellement un polymère de type dispersant, de préférence hydrophile/hydrophobe.

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