C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/22
C09K 8/70 (2006.01) C09K 8/516 (2006.01) E21B 43/22 (2006.01)
Patent
CA 1050743
"Abstract of the Disclosure" A water-insoluble particulate composition having controlled slow oil-solubility at temperature in excess of 350° F. is disclosed. The composition is comprised of solid particles of a homogeneous mixture of (1) polyethylene, ethylene-vinyl acetate copolymer containing about 15 to 30 weight percent vinyl acetate, or admixtures of these polymers; (2) a polyamide having a melting point of between about 400° F. and 460° F.; and (3) a softening agent such as a long chain aliphatic diamide having a melting point between about 280° F. and 300° F., or a polyterpene resin having amelting point of between 230° F. and 275° F. Also disclosed is a method of using this particulate composition in well drilling and treating operations where formation temperatures of 350° F. or above are encountered.
246791
Fischer Paul W.
Scheffel John W.
Na
Union Oil Company Of California
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