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US 2010/0163250 A1Published application
Well equipment for heated fluid recovery
AssigneeHalliburton Energy Services, Inc.
InventorsRoger L. Schultz, Travis W. Cavender, Robert L. Pipkin, David J. Steele
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Abstract
A device has a first elongate tubular body and a second elongate tubular body coupled to the first tubular body, both adapted to reside in the wellbore. The device is changeable between the first tubular body axially fixed against movement in a first direction relative to the second tubular body and axially moveable in the first direction relative to the second elongate tubular body in response to temperature.
Claims28
A device, comprising:
- a first elongate tubular body adapted to reside in a wellbore;
- and
- a second elongate tubular body coupled to the first tubular body and adapted to reside in the wellbore;
- and
- the device changeable between the first tubular body axially fixed against movement in a first direction relative to the second tubular body and axially moveable in the first direction relative to the second elongate tubular body in response to temperature.
2 more elements
A method, comprising:
- pushing a string into a wellbore with a rigid joint;
- and
- changing the joint, in response to temperature, to allow axial retraction of the joint.
A downhole tool system, comprising:
- a first tubing associated;
- a second tubing, the first and second tubings concentrically arranged;
- a first metallic split seal ring carried on the second tubing and sealed to the second tubing, the first seal ring springingly biased in sealing contact against the first tubing;
- and
- a second metallic split seal ring carried on the second tubing and abutting the first seal ring, the second seal ring springing biased in sealing contact against the first tubing, the first and second seal rings arranged with a split in the first seal ring is overlapped by the second seal ring.
2 more elements
A method, comprising:
- receiving a flow of fluid of between a first and second concentrically arranged tubings, the flow being at a temperature of approximately 250° C. or greater;
- and
- sealing against the flow with a plurality of metal split seal rings residing between the first and second tubings.
Dependencies are inferred from the claim text.