Well tool for completing a well
AssigneeBestline Liner Systems
InventorLeo D. Hudson
Life of this patent
Estimating the term…
Abstract
A well tool for drilling in, cementing and completing a liner installation in a single placement. A hydraulic setting tool actuates an adapter sleeve to decouple splines forming a two-direction torque drive. The hydraulic setting tool also actuates a slips set for hanging the liner and a deformable sleeve seal. A coupling includes external splines on the hydraulic setting tool and on the upper portion of the liner. Reverse threads engage the setting tool with the upper end of the liner as well. Movement of the adapter sleeve which has internal splines releases the spline coupling such that after the well has been completed, the drill string can be rotated to release the liner.
Claims17
A well coupling for a tubular element having an interior threaded end, comprising
- first external splines at one end of the tubular element;
- a piston setting tool including threads to receive the interior threaded end and second external splines;
- an adapter sleeve outwardly of the upper end of the tubular element and including internal splines, the adapter sleeve having a first position extending beyond the upper end of the tubular element and a second position displaced axially away from the piston setting tool from the first position, the internal splines being engaged with the first and the second external splines in the first position, the internal splines being disengaged from the second external splines in the second position.
A well tool comprising
- a liner including an interior threaded upper end, first external splines at the upper end and a drill bit at the lower end;
- a piston setting tool including a tube and an outer piston sleeve, the tube having threads to receive the threaded upper end and second external splines;
- an adapter sleeve outwardly of the upper end of the liner and including internal splines, the adapter sleeve having a first position extending beyond the upper end of the liner and a second position displaced axially toward the liner from the first position, the internal splines being engaged with the first and the second external splines in the first position, the internal splines being disengaged from the second external splines in the second position and the adapter sleeve being aligned with the outer piston sleeve with the upper end of the liner and the tube engaged.
A well tool comprising
- a liner;
- a piston setting tool including a tube and an outer piston sleeve, the tube being attachable to the upper end of the liner;
- an adapter sleeve outwardly of the upper end of the liner and having a first position and a second position, the second position being displaced axially down the liner from the first position, the adapter sleeve being aligned with the outer piston sleeve;
- a slips set positioned about the liner;
- a wedge sleeve about the liner between the adapter sleeve and the slips set, the wedge sleeve being engaged with the slips set with the adapter sleeve in the second position;
- a sleeve seal between the wedge sleeve and the adapter sleeve about the liner and including a cylinder having a deformable portion, a sleeve piston slidable in the cylinder and a pressure fluidizing solid inwardly of the deformable portion.
Dependencies are inferred from the claim text.