US Patent 7932220 Water compatible hydraulic fluids
Patent 7932220 was granted and assigned to Schlumberger on April, 2011 by the United States Patent and Trademark Office.
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Patent abstract
A composition for use in an oil chamber of a tool includes a hydraulic oil; and a surfactant, wherein the surfactant is present at an amount sufficient to form micelles in the hydraulic oil. The composition may further include an amphiphilic copolymer. A method includes providing a hydraulic fluid composition comprising a hydraulic oil and a surfactant capable of forming micelles in the hydraulic oil; and filling a hydraulic chamber in the tool with the hydraulic fluid composition. The hydraulic fluid composition may further include an amphiphilic copolymer.
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Patent Inventor Names
Alexander Zazovsky0
Christopher Del Campo0
Diankui Fu0
Golchehreh Salamat0
Jese C. Lee0
Jian Zhou0
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US Patent 07932220 Water compatible hydraulic fluids US Patent 7932220 Water compatible hydraulic fluids
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Patent Number
07932220
Patent Number
7932220
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US Patent 07932220 Water compatible hydraulic fluids
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Is a
Current assignee
Patent jurisdiction
Patent number
07932220
Date of patent
April 26, 2011
Patent application number
11678738
Date Filed
February 26, 2007
Patent primary examiner
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