Cement compositions and methods

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United States of America Patent

PATENT NO 11898088
APP PUB NO 20220315826A1
SERIAL NO

17615952

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Abstract

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Cement slurries are prepared that comprise water, a hydraulic cement, particles of an oil-absorbent particles and non-swellable hydrophobic particles. The particles are present in an amount sufficient to alter a property of a non-aqueous drilling fluid. The cement slurry is placed in a subterranean well, whereupon the slurry contacts residual drilling fluid on casing and formation surfaces. The oil-absorbent particles and hydrophobic particles in the cement slurry may reduce the mobility of the drilling fluid, thereby improving zonal isolation.

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Patent Owner(s)

Patent OwnerAddress
SCHLUMBERGER TECHNOLOGY CORPORATION300 SCHLUMBERGER DRIVE SUGAR LAND TX 77478

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Yan Sugar Land, US 149 1051
Medvedev, Anatoly Vladimirovich Sugar Land, US 25 356
Perroni, Dominic Vincent Houston, US 12 0
Yakovlev, Andrey Vladimirovich Sugar Land, US 7 79

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