Casing Manipulation Assembly with Hydraulic Torque Locking Mechanism
AssigneeBaker Hughes Incorporated
InventorDaniel R. Hart
Life of this patent
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Abstract
Devices and method for engaging a casing member for manipulation. A hydraulic torque locking mechanism is incorporated into a casing manipulation assembly. The hydraulic torque locking mechanism includes a clutch mechanism that is actuated using surface pump pressure from tool circulation.
Claims17
A casing manipulation assembly for manipulation of a casing member and comprising:
- a central mandrel;
- a housing circumferentially surrounding the mandrel and being axially moveable with respect to the mandrel as the mandrel is rotated;
- a slip assembly having a slip member that is set within the casing member by axial movement of the mandrel with respect to the housing;
- and
- a torque locking mechanism to selectively prevent rotation of the mandrel with respect to the housing.
A torque locking mechanism for use in a casing manipulation assembly having a mandrel and a housing circumferentially surrounding the mandrel, the torque locking mechanism comprising:
- a first clutch pad operably interconnected with the housing;
- a second clutch pad operably interconnected with the mandrel;
- the first and second clutch pads being moveable between an unengaged position wherein the clutch pads are not in engaged contact with each other to permit rotation of the mandrel with respect to the housing and an engaged position wherein the clutch pads are brought into engaged contact with each other to prevent rotation of the mandrel with respect to the housing.
A method of engaging a casing member for manipulation, the method comprising the steps of:
- disposing a casing manipulation tool at least partially within a casing member, the casing manipulation tool having a mandrel and a housing circumferentially surrounding the mandrel;
- rotating the mandrel with respect to the housing to set a locking slip within he casing member;
- engaging a torque locking mechanism to prevent rotation between the housing and the mandrel.
Dependencies are inferred from the claim text.