Schlumberger Technology Corporation

Dipti Singh

Robert L Sammler

Dominic Vincent Perroni

Tzu-Chi Kuo

Anatoly Medvedev

Ron Weeks

Cement slurries are prepared that comprise water, a hydraulic cement and particles of an oil-absorbent material. 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 material in the cement slurry may reduce the mobility of the drilling fluid, thereby improving zonal isolation. The oil-absorbent material may be a polyolefin block copolymer.

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Lake Jackson, TX, United States of America

Dipti Singh