Compositions and methods for completing subterranean wells

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United States of America Patent

PATENT NO 11091686
APP PUB NO 20180010032A1
SERIAL NO

15542973

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Abstract

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Well treatment compositions comprise water, a lipophilic anionic surfactant, a hydrophilic non-ionic surfactant, a second non-ionic surfactant, a water-solubilizing solvent, a water-immiscible solvent and a lipophilic non-ionic surfactant. Optionally, a second solvent may be incorporated. When added to spacer fluids, chemical washes or both, the compositions promote the removal of non-aqueous drilling fluids from casing surfaces. Additionally, the treated casing surfaces are water wet, thereby promoting optimal bonding to cement.

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Patent Owner(s)

Patent OwnerAddress
SCHLUMBERGER TECHNOLOGY CORPORATION300 SCHLUMBERGER DRIVE MD 23 SUGAR LAND TX 77478

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Barral, Quentin Clamart, FR 3 8
Droger, Nicolas Clamart, FR 12 143
Kefi, Slaheddine Clamart, FR 22 534
Regnault, De La Mothe Loic Clamart, FR 13 84

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