Downhole shifting tool
AssigneeSchlumberger Technology Corporation
InventorsAndrew Dorban, Michael Huh, Seth Alan Conaway
Life of this patent
Estimating the term…
Abstract
A downhole tool includes a deactivation member, a latching member, a release member, and a biasing member. The deactivation member includes an outer protrusion. The latching member is positioned radially-outward from the deactivation member. The latching member includes an inner protrusion and an outer protrusion. The release member includes a sleeve extending axially toward the outer protrusion of the latching member. The biasing member exerts an axial force on the latching member.
Claims20
A downhole tool, comprising:
- a deactivation member comprising an outer protrusion;
- a latching member positioned radially-outward from the deactivation member, wherein the latching member comprises an inner protrusion and an outer protrusion;
- a release member comprising a sleeve extending axially toward the outer protrusion of the latching member;
- and
- a biasing member configured to exert an axial force on the latching member.
A downhole tool, comprising:
- a deactivation member comprising:
- a first outer protrusion;
- and
- a second outer protrusion;
- a latching member positioned radially-outward from the deactivation member, wherein the latching member comprises:
- a first inner protrusion;
- a second inner protrusion;
- a first outer protrusion;
- and
- a second outer protrusion;
- a release member comprising:
- a first sleeve extending axially-toward the first outer protrusion of the latching member;
- and
- a second sleeve extending axially-toward the second outer protrusion of the latching member;
- a first biasing member configured to exert an axial force on the latching member in a first direction;
- and
- a second biasing member configured to exert an axial force on the latching member in a second, opposing direction.
A method for resetting a downhole tool in a wellbore, comprising:
- engaging an object in the wellbore using a latching member of the downhole tool, wherein the latching member comprises an inner protrusion and an outer protrusion;
- moving at least a portion of the downhole tool in the wellbore when the object is engaged with the latching member, thereby causing a disengaging member of the downhole tool to move axially with respect to the latching member, wherein the disengaging member is positioned radially-inward from the latching member and comprises an outer protrusion;
- and
- disengaging the latching member from the object when the disengaging member moves axially with respect to the latching member,
- wherein a release member comprising a sleeve extends axially toward the outer protrusion of the latching member, and
- wherein a biasing member is configured to exert an axial force on the latching member.
Dependencies are inferred from the claim text.