C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/514 (2006.01) C09K 8/035 (2006.01) E21B 33/138 (2006.01) E21B 43/25 (2006.01)
Patent
CA 2651947
Loss circulation fluids are described, as well as methods to reduce the loss of circulation fluids into flow passages of a subterranean formation. In addition, packer fluids are further described. The various compositions of the present invention are preferably aqueous-based compositions which contain a thermally activated self-crosslinkable gel forming material.
L'invention concerne des fluides de perte de circulation, ainsi que des procédés permettant de réduire la perte de fluides de circulation dans des passages d'écoulement d'une formation souterraine. L'invention concerne également des fluides d'obturation par packer. Les diverses compositions de l'invention sont de préférence des compositions aqueuses qui contiennent un matériau filmogène autoréticulable activé thermiquement.
Cabot Specialty Fluids Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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