E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/138 (2006.01) C09K 8/42 (2006.01) C09K 8/516 (2006.01)
Patent
CA 2715149
A method of plugging a fracture in a subterranean formation which includes placing into the fracture a composition comprising microspheres or microbeads, wherein the microspheres are created by surface crosslinking of droplets in a water-in--water emulsion. Such microspheres may form a filter cake in the formation. The microspheres may include a chemical agent to be released when the microspheres dissolve.
L'invention porte sur un procédé de colmatage d'une fracture dans une formation souterraine. Ce procédé comprend la mise en place dans la fracture d'une composition comprenant des microsphères ou des microbilles, les microsphères étant créées par la réticulation de surface de gouttelettes dans une émulsion eau-dans-eau. De telles microsphères peuvent former un gâteau de filtration dans la formation. Les microsphères peuvent comprendre un agent chimique devant être libéré lorsque les microsphères se dissolvent.
Dessinges Marie Noelle
Druchon Bruno
Kubala Gregory
Sullivan Philip F.
Tustin Gary John
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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