Compositions for restoring lost circulation

Details Compositions for restoring lost circulation Compositions for restoring lost circulation

E - Fixed Constructions

21

B

E21B 33/13 (2006.01) C09K 8/16 (2006.01) C09K 8/22 (2006.01) C09K 8/32 (2006.01) C09K 8/504 (2006.01)

Patent

CA 2480267

A method and composition is provided for sealing a subterranean zone penetrated by a well bore to restore lost circulation. In one embodiment, the composition comprises a pellet comprising a mixture of lost circulation materials (LCMs).

L'invention concerne un procédé et une composition permettant d'étanchéifier une zone souterraine pénétrée par un puits de forage de manière à restaurer une circulation perdue. Dans un mode de réalisation, cette composition comprend une boulette contenant un mélange de matières de circulation perdue.

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