2075303-A1 is referenced by 38 patents and cites 4 patents.

A spacer fluid comprising a fluid and a viscosity agent wherein the viscosity agent is a mixture of polyvinylalcohols having at least two polyvinylalcohols with different degrees of hydrolysis such that the rheology of the spacer fluid is stable during temperatures changes.

Title
Spacer fluid additive
Application Number
EP20070123490 20071218
Publication Number
2075303 (A1)
Application Date
December 18, 2007
Publication Date
July 1, 2009
Inventor
Drochon Bruno
FR
Assignee
Schlumberger Services Petrol
FR
Schlumberger Technology
NL
Schlumberger Holdings
VG
Prad Res & Dev
AN
IPC
C09K8/40
C09K 08/40
C09K8/40
C09K 08/40
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