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US 2012/0186819 A1Published application
Varying pore size in a well screen
AssigneeHalliburton Energy Services, Inc.
InventorsPeter DAGENAIS, Michael L. FRIPP
Life of this patent
Estimating the term…
Abstract
A method can include applying a magnetic field to a well screen, thereby varying sizes of pores via which fluid flows through the well screen. A well screen can include a magnetic shape memory material having a dimension which changes in response to application of a magnetic field. Restriction to flow through the well screen can vary in response to the change in dimension of the magnetic shape memory material.
Claims28
A method, comprising:
- applying a magnetic field to a well screen, thereby varying sizes of pores via which fluid flows through the well screen.
A well screen, comprising:
- a magnetic shape memory material having a dimension which changes in response to application of a magnetic field, and
- wherein restriction to flow through the well screen varies in response to the change in dimension of the magnetic shape memory material.
Dependencies are inferred from the claim text.