Selectively actuatable expandable underreamer/stablizer
DC CAFCFirst Claim
1. An expandable downhole tool for use within a wellbore, comprising:
- a tubular body having an axial flowbore extending therethrough;
at least one moveable arm; and
a selectively actuatable sleeve that prevents or allows a differential pressure to translate the at least one moveable arm between a collapsed position and an expanded position.
1 Assignment
Litigations
2 Petitions
Reexamination
Accused Products
Abstract
An expandable downhole tool comprises a tubular body having an axial flowbore extending therethrough, at least one moveable arm, and a selectively actuatable sleeve that prevents or allows the at least one moveable arm to translate between a collapsed position and an expanded position. A method of expanding the downhole tool comprises disposing the downhole tool within the wellbore, biasing the at least one moveable arm to a collapsed position corresponding to an initial diameter of the downhole tool, flowing a fluid through an axial flowbore extending through the downhole tool while preventing the fluid from communicating with a different flowpath of the downhole tool, allowing the fluid to communicate with the different flowpath by introducing an actuator into the wellbore, and causing the at least one moveable arm to translate to an expanded position corresponding to an expanded diameter of the downhole tool.
144 Citations
27 Claims
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1. An expandable downhole tool for use within a wellbore, comprising:
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a tubular body having an axial flowbore extending therethrough; at least one moveable arm; and a selectively actuatable sleeve that prevents or allows a differential pressure to translate the at least one moveable arm between a collapsed position and an expanded position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of expanding a downhole tool within a wellbore, comprising:
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disposing the downhole tool comprising at least one moveable arm within the wellbore; biasing the at least one moveable arm to a collapsed position corresponding to an initial diameter of the downhole tool; flowing a fluid though an axial flowbore extending through the downhole tool while preventing the fluid from communicating with a different flowpath of the downhole tool; allowing the fluid to communicate with the different flowpath by introducing an actuator into the wellbore; and causing the at least one moveable arm to translate to an expanded position corresponding to an expanded diameter of the downhole tool. - View Dependent Claims (23, 24, 25, 26)
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27. An expandable downhole tool for use within a wellbore, comprising:
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a tubular body; and at least one moveable arm; wherein the expandable downhole tool is selectively actuatable to allow or prevent a fluid flowing through the tubular body to translate the at least one moveable arm between a collapsed position and an expanded position.
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Specification