CEMENT COMPOSITIONS AND METHODS

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 re...

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Main Authors KOLCHANOV, Petr, MARTIN-AL-KHATIB, Laure, PERRONI, Dominic Vincent, KEILERS, Adam Ethan, MEDVEDEV, Anatoly Vladimirovich
Format Patent
LanguageEnglish
Published 05.05.2022
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Summary: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.
Bibliography:Application Number: US201917254418