Two-part drilling and running tool
AssigneeHalliburton Energy Services, Inc.
InventorBorisa Lajesic
Life of this patent
Estimating the term…
Abstract
Provided is a two part drilling and running tool, a well system, and a method for forming a well system. The two part drilling and running tool, in one aspect, includes a conveyance, and a smaller assembly coupled to an end of the conveyance. The two part drilling and running 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.
Claims33
A two part drilling and running tool, comprising:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, wherein the smaller assembly is a smaller bit assembly including one or more blades and one or more cutting features along a nose 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 well system, comprising:
- a main wellbore located within a subterranean formation;
- a whipstock assembly positioned within the subterranean formation;
- and
- a two part drilling and running tool positioned within the main wellbore, the two part drilling and running tool including:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, wherein the smaller assembly is a smaller bit assembly including one or more blades and one or more cutting features along a nose 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 method for forming a well system, comprising:
- forming a main wellbore within a subterranean formation;
- and
- positioning a two part drilling and running tool within the main wellbore, the two part drilling and running tool coupled to a whipstock assembly using a coupling mechanism, the two part drilling and running tool including:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, wherein the smaller assembly is a smaller bit assembly including one or more blades and one or more cutting features along a nose 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 two part drilling and running tool, comprising:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, wherein the smaller assembly is a smaller bit assembly including one or more shear profiles, the one or more shear profiles configured to house one or more shear features configured to removably couple the smaller bit assembly to a whipstock assembly;
- 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 two part drilling and running tool, comprising:
- a conveyance;
- a smaller assembly coupled to an end of the conveyance, wherein the smaller assembly is a smaller bit assembly including one or more fluid ports, the one or more fluid ports configured to provide fluid access downhole of the smaller bit assembly;
- 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.
Dependencies are inferred from the claim text.