Patrick D Ellis

US Patent:

56041845, Feb 18, 1997

Filed:

Apr 10, 1995

Appl. No.:

8/419498

Inventors:

Patrick D. Ellis - Kingwood TX
Billy W. Surles - Houston TX

Assignee:

Texaco, Inc. - White Plains NY

International Classification:

E21B 43267

US Classification:

507117

Abstract:

Disclosed is an improvement in a method for propping a fracture adjacent a wellbore formed by injecting in said fracture a carrier fluid containing proppant coated with a curable resin which improvement comprises: a) using proppant coated with a resin fluid containing a polymerizable oligomer of furfuryl alcohol resin, a catalyst comprising an oil soluble, slightly water soluble organic acid and an ester of a weak organic acid to consume water produced by the polymerization of resin; b) using as a carrier an aqueous saline fluid comprising water which is 70% to 100% saturated with sodium chloride, c) suspending said resin-coated proppant in the carrier fluid, forming a fluid mixture of resin-coated proppant and carrier fluid; and injecting said mixture into said fracture, wherein the timing of the addition of the catalyst can be varied.