Downhole decelerating device, system and method
AssigneeBaker Hughes Incorporated
InventorsThomas S. Myerley, Michael J. May
Life of this patent
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Abstract
Disclosed herein is a decelerating device. The device includes, a body movably engagable within a tubular, a mandrel longitudinally movably disposed at the body, and at least one deceleration element disposed at the body in operable communication with the mandrel such that longitudinal movement of the mandrel with respect to the body causes controlled radial movement of the at least one deceleration element to decelerate the decelerating device in relation to the downhole tubular.
Claims20
A decelerating system for a tubular located at a subterranean location and further comprising a profile, comprising:
- a decelerator assembly selectively actuated to engage the tubular;
- said decelerator assembly movably mounted to a mandrel;
- said decelerator assembly comprising at least one element in operable communication with the mandrel such that longitudinal movement of said decelerator assembly relative to said mandrel when said mandrel has found a support after freefalling causes radial movement of said at least one element to interact with the tubular to decelerate the decelerator assembly in relation to the tubular.
A decelerating system for a tubular located at a subterranean location and further comprising a profile, comprising:
- a decelerator assembly selectively actuated to engage the tubular;
- said decelerator assembly movably mounted to a mandrel;
- said decelerator assembly comprising at least one element in operable communication with the mandrel such that longitudinal movement of said decelerator assembly relative to said mandrel when said mandrel has found a support causes radial movement of said at least one element to interact with the tubular to decelerate the decelerator assembly in relation to the tubular;
- and
- said mandrel is movable relative to the decelerator assembly in response to contacting the profile within the tubular that is substantially stationary.
A decelerating system for a tubular located at a subterranean location and further comprising a profile, comprising:
- a decelerator assembly selectively actuated to engage the tubular;
- said decelerator assembly movably mounted to a mandrel;
- said decelerator assembly comprising at least one element in operable communication with the mandrel such that longitudinal movement of said decelerator assembly relative to said mandrel when said mandrel has found a support causes radial movement of said at least one element to interact with the tubular to decelerate the decelerator assembly in relation to the tubular;
- and
- the at least one element restricts fluid flow between the decelerator assembly and the tubular in response to outward radial movement thereof.
A decelerating system for a tubular located at a subterranean location and further comprising a profile, comprising:
- a decelerator assembly selectively actuated to engage the tubular;
- said decelerator assembly movably mounted to a mandrel;
- said decelerator assembly comprising at least one element in operable communication with the mandrel such that longitudinal movement of said decelerator assembly relative to said mandrel when said mandrel has found a support causes radial movement of said at least one element to interact with the tubular to decelerate the decelerator assembly in relation to the tubular;
- and
- the decelerating system is configured to cease movement of the decelerator assembly relative to the tubular prior to exhaustion of a stroke length of said decelerator assembly relative to said mandrel.
A method of decelerating a tool dropped within a tubular located at a subterranean location, comprising:
- contacting a subterranean structure with a mandrel of a decelerator assembly in operable communication with the dropped tool;
- creating relative longitudinal movement between the mandrel and a body of the decelerator assembly in response to the contacting;
- radially moving at least one element disposed at the body in response to the relative longitudinal movement;
- and
- deceleratingly engaging the tubular with the radially moving of the at least one element.
A decelerating device for a tubular at a subterranean location, comprising:
- a body comprising a deceleration element and said body movably mounted to a mandrel, said deceleration element selectively engageable to the tubular;
- and
- wherein longitudinal movement of said body relative to said mandrel when said mandrel has found a support after freefalling causes radial movement of said at least one deceleration element to decelerate said body in relation to the tubular.
Dependencies are inferred from the claim text.