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US 5,393,439 AGranted
Periodate fracturing fluid viscosity breakers
AssigneeHalliburton Company
InventorsSteve B. Laramay, Lewis R. Norman
Life of this patent
Estimating the term…
Abstract
Fracturing fluids for hydraulically fracturing oil and gas bearing subterranean formations to increase flow of formation fluids into wells using a periodate or a metaperiodate salt as the viscosity breaker. The fracturing fluids are particularly advantageous when used in conjunction with curable resin-coated proppants and for fracturing subterranean formations which are at temperatures between about 50.degree. F. and about 120.degree. F., in conjunction with both uncured resin-coated proppants and other types of proppants.
Claims10
A fracturing fluid comprising
- water,
- a polysaccharide viscosifier,
- a crosslinking agent, and
- at least one viscosity breaker selected from the group consisting of a salt of a periodate and a salt of a metaperiodate.
1 more element
Dependencies are inferred from the claim text.