Colloid systems and wetting agents; subcombinations thereof; pro – Continuous liquid or supercritical phase: colloid systems;... – Aqueous continuous liquid phase and discontinuous phase...
Patent
1995-06-06
1999-10-12
McAvoy, Ellen M.
Colloid systems and wetting agents; subcombinations thereof; pro
Continuous liquid or supercritical phase: colloid systems;...
Aqueous continuous liquid phase and discontinuous phase...
516 58, 516 76, 516 78, B01F 1700
Patent
active
059646926
ABSTRACT:
Aqueous structured surfactants, e.g., lamellar, or preferably spherulitic systems optionally containing suspended solids are used as functional fluids, such as drilling fluids, cutting fluids, hydraulic fluids, heat transfer fluids, construction muds and lubricants. A composition consisting essentially of: water; a surfactant or mixture of surfactants present in a concentration sufficient to form a mobile spherulitic or dispersed lamellar phase in the absence of an electrolyte; and a substantially water insoluble functional material, suspended in the composition, the composition being substantially free from electrolyte.
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"Composition and Properties of Oilwell Drilling Fluids", Gray & Darley Gulf Publishing Co., Fourth Edition, pp. 528-529.
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Blezard Michael
Grover Boyd William
Hawkins John
Messenger Edward Tunstall
Nicholson William John
Albright & Wilson Limited
McAvoy Ellen M.
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