Method and compositions for fracturing subterranean formations

Details Method and compositions for fracturing subterranean formations Method and compositions for fracturing subterranean formations

E - Fixed Constructions

21

B

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E21B 43/267 (2006.01) C08K 5/00 (2006.01) C09K 8/512 (2006.01) C09K 8/68 (2006.01)

Patent

CA 1201886

Abstract of the Disclosure An aqueous gel containing a crosslinking agent comprising an organotitanate chelate and a retarding agent which delays crosslinking of the gel. This retarding agent comprises a selected polyhydroxycarboxylic acid having from 3 to 7 carbon atoms. The gel is useful for fracturing and placing propping agents within a subterranean formation. The gel has a high viscosity in the formation and has pumping characteristics in turbulent flow similar to those of water. -35-

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