Methods for servicing subterranean wells

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United States of America Patent

PATENT NO 9950952
SERIAL NO

13603367

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Abstract

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Pumpable process-fluid compositions and methods for establishing hydraulic isolation in cemented subterranean wells comprise more than 1 wt % polyacrylamide and a non-metallic crosslinker. Upon entering voids and cracks in or adjacent to a cement sheath, and contacting the set-cement surfaces, the compositions react and form a seal that prevents further leakage.

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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
Lin, Lijun Sugar Land, US 89 1359
Sullivan, Philip F Bellaire, US 65 2275
Tustin, Gary John Cambridgeshire, GB 55 892

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