C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/12 (2006.01) C07C 309/15 (2006.01) C07C 309/17 (2006.01)
Patent
CA 2488260
An anionic viscoelastic surfactant with sulphonate head group of formula R-X-(CR5CR6)m-SO3-, in which groups R, X, R5, R6 and m are as defined, particularly for use as a wellbore service fluid.
Hartshorne Robert Seth
Hughes Trevor Lloyd
Jones Timothy Gareth John
Tustin Gary John
Schlumberger Canada Limited
Smart & Biggar
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