Compositions – Leather or fur treating
Patent
1987-10-15
1988-12-20
Guynn, Herbert B.
Compositions
Leather or fur treating
252 851, 252 8551, 2523635, 524436, 524548, C09K 702
Patent
active
047924128
ABSTRACT:
There is provided an aqueous brine fluid containing a high salt concentration and a polyvinylpyrrolidone polymer or copolymer which serves to increase the viscosity thereof, particularly at elevated temperatures of above about 300.degree. F. These fluids are particularly useful as drilling fluids for the drilling of oil and gas wells.
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Morawetz, Macromolecules in Solution, pub. 1965 by Interscience Publishers, New York.
Gilman Michael G.
Guynn Herbert B.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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