Enzyme compositions and methods of using these compositions to degrade succinoglycan
AssigneeHalliburton Energy Services, Inc.
InventorsRonald Powell, Bradley Todd
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Abstract
This invention relates to enzyme compositions and methods of using these enzyme compositions, inter alia, to degrade succinoglycan. In one embodiment, the present invention provides a method of degrading succinoglycan comprising contacting the succinoglycan with an enzyme composition that comprises enzymes that are capable of degrading the linkages between sugar moieties of the succinoglycan.
Claims61
A method of degrading succinoglycan comprising contacting the succinoglycan with an enzyme composition that comprises enzymes that are capable of degrading linkages between sugar moieties of the succinoglycan.
A method of reducing a viscosity of a viscosified treatment fluid comprising the steps of:
- providing a viscosified treatment fluid comprising succinoglycan, and an enzyme composition that comprises enzymes that are capable of degrading linkages between sugar moieties of the succinoglycan;
- placing the viscosified treatment fluid into a wellbore penetrating a subterranean formation;
- and
- allowing the enzyme composition to react with the succinoglycan so as to reduce the viscosity of the viscosified treatment fluid at a desired time.
A method of maintaining the integrity of a filter cake while reducing the viscosity of a viscosified treatment fluid comprising succinoglycan comprising the steps of:
- providing a viscosified treatment fluid comprising succinoglycan, and an enzyme composition that comprises enzymes that are capable of degrading linkages between sugar moieties of the succinoglycan;
- providing a filter cake that does not comprise succinoglycan;
- placing the viscosified treatment fluid into a wellbore penetrating a subterranean formation;
- and
- allowing the enzyme composition to react with the succinoglycan in the viscosified treatment fluid so as to reduce the viscosity of the viscosified treatment fluid at a desired time.
A method of degrading a filter cake comprising succinoglycan comprising the steps of contacting the filter cake with an enzyme composition that comprises enzymes that are capable of degrading linkages between sugar moieties of the succinoglycan.
An enzyme composition capable of degrading succinoglycan comprising a enzymes that are capable of degrading linkages between sugar moieties of the succinoglycan.
An enzyme composition capable of reducing the viscosity of a viscosified treatment fluid comprising succinoglycan while maintaining the integrity of a filter cake, the enzyme composition comprising an enzyme capable of degrading succinoglycan.
Dependencies are inferred from the claim text.