Drill pipe
AssigneeAdvanced Coring & Drilling Solutions Inc.
InventorNorman Prokopchuk
Life of this patent
Estimating the term…
Abstract
A drill pipe assembly includes an elongate drill pipe and a drill pipe extension. The elongate drill pipe has a first threaded end and a second threaded end. The drill pipe extension has a first threaded end and a second threaded end. The second threaded end matingly engaging the first threaded end of the elongate drill pipe. The first threaded end being adapted to matingly engage an additional component of a drill string. The drill pipe extension has an external upset. The external upset has recessed flow paths.
Claims18
A drill pipe assembly, comprising:
- an elongate drill pipe having a first threaded end and a second threaded end;
- a drill pipe extension comprising a circumferential recessed area between a first threaded end and a second threaded end, the second threaded end matingly engaging the first threaded end of the elongate drill pipe, the first threaded end of the extension being adapted to matingly engage an additional component of the drill pipe assembly;
- the drill pipe extension having an external upset integrally formed with the drill pipe extension, the external upset having recessed flow paths, wherein the drill pipe has an outer diameter of between 5 and 5¼ inches, and the external upset has an outer diameter of between 5⅞ and 6¾ inches, wherein the circumferential recessed area having a smaller diameter than the outer diameter of the drill pipe.
A method of drilling a well, comprising:
- providing a drill pipe assembly having an outer diameter of between 5 and 5¼ inches, the drill pipe assembly comprising elongate drill pipes connected to a plurality of drill pipe extensions, wherein the drill pipe extensions comprising a circumferential recessed area between a first threaded end and a second threaded end, the circumferential recessed area having a smaller diameter than the outer diameter of the drill pipe assembly, the plurality of drill pipe extensions having an external upset integrally formed with the drill pipe extension and the external upset having recessed flow paths;
- and
- drilling a wellbore by inserting the drill pipe assembly into the wellbore, at least a portion of the wellbore having an inner diameter between 5⅞ and 6¾ inches, the external upsets having an outer diameter that is less than the inner diameter of the wellbore, the recessed flow paths providing relief against hydrojacking.
A method of drilling a well, comprising:
- providing a drill pipe assembly having an outer diameter of between 5 and 5¼ inches, the drill pipe assembly comprising elongate drill pipes having external upsets, each external upset having recessed flow paths, wherein at least one of the elongated the drill pipes comprising a circumferential recessed area between a first threaded end and a second threaded end, the circumferential recessed area having a smaller diameter than the outer diameter of the drill pipe assembly;
- and
- drilling a wellbore by inserting the drill pipe assembly into the wellbore, at least a portion of the wellbore having an inner diameter between 5⅞ and 6¾ inches, the external upsets having an outer diameter that is less than the inner diameter of the wellbore such that the recessed flow paths provide relief against hydrojacking.
Dependencies are inferred from the claim text.