Threaded 2 piece bit assembly
AssigneeHalliburton Energy Services, Inc.
InventorMark Christopher Glaser
Life of this patent
Estimating the term…
Abstract
Provided is a two part drilling and running tool, a downhole tool, a well system, and a method for forming a well system. The two part drilling and running tool, in at least one aspect, includes a conveyance, a smaller assembly coupled to an end of the conveyance, the smaller assembly having a collection of threads located proximate a downhole end thereof, the collection of threads configured to help engage and/or disengage from a wellbore tool positioned there below. The downhole tool, in accordance with this aspect, further includes a larger bit assembly slidably coupled to the conveyance, the smaller assembly and larger bit assembly configured to slidingly engage one another downhole to form a combined bit assembly.
Claims22
A two part drilling and running tool, comprising:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, the smaller assembly having a collection of threads located proximate a downhole end thereof, the collection of threads configured to help engage and/or disengage from a wellbore tool positioned there below;
- and
- a larger bit assembly slidably coupled to the conveyance, the smaller assembly and larger bit assembly configured to slidingly engage one another downhole to form a combined bit assembly.
The two part drilling and running tool as recited in 1, wherein the collection of threads are a first collection of right hand threads configured to help engage and/or disengage from a second collection of right hand threads in the wellbore tool, and further wherein the conveyance is a left hand conveyance, such that a left hand twisting of the left hand conveyance is configured to disengage the smaller assembly from the wellbore tool.
A downhole tool, comprising:
- a two part drilling and running tool, comprising:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, the smaller assembly having a collection of threads located proximate a downhole end thereof;
- and
- a larger bit assembly slidably coupled to the conveyance, the smaller assembly and larger bit assembly configured to slidingly engage one another downhole to form a combined bit assembly;
- a whipstock assembly coupled to the two part drilling and running tool using a coupling mechanism;
- an anchoring assembly coupled downhole of the whipstock assembly;
- and
- a wellbore liner coupled downhole of the anchoring assembly, and further wherein the collection of threads are configured to help engage and/or disengage from one of the whipstock assembly, the anchoring assembly or the wellbore liner.
A well system, comprising:
- a main wellbore located within a subterranean formation;
- and
- a downhole tool positioned within the main wellbore, the downhole tool including:
- a two part drilling and running tool, the two part drilling and running tool including:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, the smaller assembly having a collection of threads located proximate a downhole end thereof;
- and
- a larger bit assembly slidably coupled to the conveyance, the smaller assembly and larger bit assembly configured to slidingly engage one another downhole to form a combined bit assembly;
- a whipstock assembly coupled to the two part drilling and running tool using a coupling mechanism;
- an anchoring assembly coupled downhole of the whipstock assembly;
- and
- a wellbore liner coupled downhole of the anchoring assembly, and further wherein the collection of threads are configured to help engage and/or disengage from one of the whipstock assembly, the anchoring assembly or the wellbore liner.
A method for forming a well system, comprising:
- forming a wellbore within a subterranean formation;
- positioning a downhole tool within the wellbore, the downhole tool including:
- a two part drilling and running tool, the two part drilling and running tool including:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, the smaller assembly having a collection of threads located proximate a downhole end thereof;
- and
- a larger bit assembly slidably coupled to the conveyance, the smaller assembly and larger bit assembly configured to slidingly engage one another downhole to form a combined bit assembly;
- a whipstock assembly coupled to the two part drilling and running tool using a coupling mechanism;
- an anchoring assembly coupled downhole of the whipstock assembly;
- and
- a wellbore liner coupled downhole of the anchoring assembly, and further wherein the collection of threads are configured to help engage and/or disengage from one of the whipstock assembly, the anchoring assembly or the wellbore liner;
- rotating the conveyance to disengage the collection of threads from the one of the whipstock assembly, the anchoring assembly or the wellbore liner;
- and
- retracting the smaller assembly that has disengaged from the one of the whipstock assembly, the anchoring assembly or the wellbore liner uphole, the smaller assembly engaging with the larger bit assembly to form the combined bit assembly.
Dependencies are inferred from the claim text.