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US 2016/0258245 A1Published application
Packer Assembly with Thermal Expansion Buffers
AssigneeHalliburton Energy Services, Inc.
InventorShanu Thottungal Eldho
Life of this patent
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Abstract
Systems, methods, and apparatuses for accommodating thermal expansion in a tool string are disclosed. Exemplary systems include one or more sacrificial members placed between or adjacent elements of the tool string that are expected to expand when subjected to high temperatures. The sacrificial members are configured to destruct upon exposure to a control signal or a critical temperature or load. Destruction of the sacrificial members provides additional clearance for adjacent elements to expand.
Claims20
A packer assembly comprising:
- a slip assembly having a cammed surface;
- an actuator subassembly having a cammed actuation surface that engages the cammed surface of the slip assembly to actuate the slip assembly;
- and
- a sacrificial member disposed between the cammed surface of the slip assembly and the cammed actuation surface.
1 more element
A packer assembly comprising:
- an expandable sealing element;
- a compressive actuator that compresses the expandable sealing element to actuate the packer assembly;
- and
- a sacrificial member disposed between the expandable sealing element and the compressive actuator.
1 more element
An isolation method comprising:
- providing an isolation system comprising:
- an expandable sealing element;
- a compressive actuator;
- and
- a first sacrificial member disposed between the expandable sealing element and the compressive actuator;
- and
- actuating the compressive actuator to compress the expandable sealing element;
- and
- allowing the first sacrificial member to destruct.
6 more elements
Dependencies are inferred from the claim text.