Encapsulated filtercake removal treatment
AssigneeHalliburton Energy Services, Inc.
InventorAlexandra Clare Morrison
Life of this patent
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Abstract
Systems and methods for treating a subterranean formation with particulate additives that may be useful in removing filtercake and/or mitigating premature fluid loss from the subterranean formation are provided. In some embodiments, the methods include providing a treatment fluid that includes a base fluid and a particulate additive, wherein particulates of the particulate additive each include an enzyme core and a degradable coating that at least partially encapsulates an outer surface of the enzyme core; and introducing the treatment fluid into at least a portion of a subterranean formation.
Claims20
A method comprising:
- providing a treatment fluid that comprises a base fluid and a particulate additive, wherein particulates of the particulate additive each comprise an enzyme core and a degradable coating that at least partially encapsulates an outer surface of the enzyme core;
- and
- introducing the treatment fluid into at least a portion of a subterranean formation.
A method comprising:
- providing a treatment fluid that comprises a base fluid and a particulate additive, wherein particulates of the particulate additive each comprise an enzyme core and a degradable coating, wherein the degradable coating at least partially encapsulates an outer surface of the enzyme core;
- and
- contacting a filtercake in at least a portion of a well bore penetrating a subterranean formation with the treatment fluid.
A filtercake removal agent comprising:
- a base fluid;
- and
- a plurality of particulates, wherein each of the particulates comprises
- an enzyme core, and
- a degradable coating that encapsulates an outer surface of the enzyme core.
Dependencies are inferred from the claim text.