Enzyme breakers for breaking fracturing fluids and methods of ma

Details Enzyme breakers for breaking fracturing fluids and methods of ma Enzyme breakers for breaking fracturing fluids and methods of ma

1994-04-19

1995-08-15

Suchfield, George A.

Wells

Processes

Chemical inter-reaction of two or more introduced materials

166308, 507201, 507211, 507921, 507922, E21B 4326

Patent

active

054411092

ABSTRACT:
The present invention is directed to new enzyme breakers for breaking fracturing fluids or blocking gels, wherein the enzyme breakers only have activity above a selected temperature, i.e., no activity below the selected temperature or only active in a narrow temperature range. The present invention is preferably specifically directed to hemicellulase enzyme breakers only having activity above 100.degree. F., 150.degree. F., 200.degree. F., or 250.degree. F. and the method of making and use thereof.

REFERENCES:
patent: 4502967 (1985-03-01), Conway
patent: 4506734 (1985-03-01), Nolte
patent: 5067566 (1991-11-01), Dawson
patent: 5164099 (1992-11-01), Gupta et al.
patent: 5201370 (1993-04-01), Tjon-Joe-Pin
patent: 5224544 (1993-07-01), Tjon-Joe-Pin et al.
patent: 5226479 (1993-07-01), Gupta et al.
patent: 5247995 (1993-09-01), Tjon-Joe-Pin et al.

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