High strength water soluble plug
AssigneeHalliburton Energy Services, Inc.
InventorsLance E. Brothers, Larry S. Eoff
Life of this patent
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Abstract
Apparatus for use in operations performed in conjunction with a subterranean well is provided by the present invention. In one described embodiment, a plug apparatus includes a soluble polymer material, which is utilized in a plug member for blocking flow through a fluid passage. In another described embodiment, a soluble polymer material is utilized in a blocking member for blocking displacement of a displacement member of an apparatus.
Claims47
A plug apparatus for use in conjunction with operations performed in a subterranean well, comprising:
- a plug member including a polymer soluble in a fluid and a coating of a material insoluble in the fluid, the coating isolating the polymer from contact with the fluid.
An apparatus for use in operations performed in conjunction with a subterranean well, the apparatus comprising:
- a displacement member, the displacement member displacing in operation of the apparatus;
- and
- a blocking member preventing displacement of the displacement member, the blocking member being a polymer soluble in a fluid present proximate the apparatus, the blocking member including a coating of a material insoluble in the fluid, the coating material isolating the polymer from contact with the fluid.
An apparatus for use in operations performed in conjunction with a subterranean well, the apparatus comprising:
- a displacement member, the displacement member displacing in operation of the apparatus;
- a blocking member preventing displacement of the displacement member, the blocking member being a polymer soluble in a fluid present proximate the apparatus;
- and
- a valve selectively permitting and preventing flow through a fluid passage in response to displacement of the displacement member.
Dependencies are inferred from the claim text.