Methods and compositions for cementing pipe strings in well...

E - Fixed Constructions – 21 – B

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E21B 33/14 (2006.01) C04B 24/18 (2006.01) C04B 24/28 (2006.01) C04B 28/02 (2006.01) C09K 8/46 (2006.01)

Patent

CA 2298138

The present invention provides improved methods and compositions for cementing pipe strings in well bores. The methods of the invention are basically comprised of preparing a cement composition comprised of a hydraulic cement, an epoxy resin, a hardening agent for the epoxy resin and sufficient water to form a pumpable slurry. Thereafter, the cement composition is introduced into the annulus between a pipe string and a well bore and the cement composition is allowed to set into a resilient impermeable solid mass.

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