Casing packer
AssigneeMetrol Technology Limited
InventorsLeslie Jarvis, Shaun Ross, David Martin
Life of this patent
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Abstract
A casing packer apparatus (P) comprising a mandrel (2) having a longitudinal throughbore, a packer element (6) mounted on the mandrel, and an expansion mechanism comprising a piston (11, 12) configured to move the packer element from a first position radially outwards to a second position. A bypass conduit (25) extends generally in said longitudinal direction, from one side of an outer sealing face of the packer element to an opposite side of the outer sealing face, and a bypass valve (41) controls said bypass conduit. The bypass valve is controlled by signals received via a wireless receiver (40). The casing packer can be deployed as an integral part of the casing string and used to control pressure build-up in the casing annulus.
Claims32
A casing packer apparatus comprising:
- a mandrel having a main longitudinal direction, the mandrel defining a throughbore in the main longitudinal direction;
- a packer element mounted on the mandrel, the packer element comprising an outer sealing face;
- an expansion mechanism comprising a piston configured to move the packer element from a first position, radially outwards to a second position;
- a bypass conduit extending generally in said longitudinal direction, from one side of the outer sealing face to an opposite side of the outer sealing face;
- a bypass valve controlling said bypass conduit;
- a wireless receiver to receive wireless signals to control the bypass valve.
Dependencies are inferred from the claim text.