Activation of set-delayed cement compositions by retarder exchange

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United States of America Patent

PATENT NO 9988306
SERIAL NO

14910867

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Abstract

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A variety of methods and compositions for cementing with set-delayed cement. In one embodiment a method comprises providing a set-delayed cement composition comprising a hydraulic cement, water, and a primary retarder. The method further comprises activating the set-delayed cement composition through a retarder exchange whereby, a secondary retarder is added to the set-delayed cement composition to produce an activated cement composition. The activated cement composition is then allowed to set.

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Patent Owner(s)

Patent OwnerAddress
HALLIBURTON ENERGY SERVICES INC3000 N SAM HOUSTON PARKWAY E HOUSTON TX 77032-3219

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boontheung, Pinmanee Spring, US 4 16
Boul, Peter James Houston, US 28 513
Pang, Xueyu Houston, US 24 91

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