Stable detachable drill rod device
A detachable, drill pipe technology, used in drill pipes, drill pipes, drilling equipment, etc., can solve the problems that technical performance and structural size cannot meet the requirements of drilling speed and efficiency improvement, etc., to improve drilling efficiency and increase water Eye diameter, longevity effect
Inactive Publication Date: 2019-05-10
NANTONG YONGDA PIPE IND
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Problems solved by technology
At the same time, the requirements of modern drilling technology for the improvement of drilling speed and efficiency are also increasing, and higher requirements are put forward for the mud circulation speed, while the technical performance and structural size of API standard drill pipes can no longer meet the requirements of drilling speed and efficiency improvement.
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Embodiment 1
[0036] In this embodiment, a stable and detachable drill pipe device includes an externally threaded joint 2, an internally threaded joint 5, and a drill pipe body 3, between the drill pipe body 3 and the drill pipe externally threaded joint 2, and the drill pipe body 3 and the drill pipe female internally threaded joint 5 are connected by friction butt welding 4.
[0037] The inner diameter of the cross-sectional area of the drill pipe body 3 is: 95-105mm, the outer threaded joint 2 and the inner threaded joint 5 are connected by tapered threads, and the maximum outer diameters of the cross-section of the drill pipe outer threaded joint 2 and the inner threaded joint 5 are equal and Both are 172mm, and the inner diameter of the top cross-section of the external drill pipe joint 2 is 88.9mm, which increases the inner diameter of the drill pipe. The lengths of the external drill pipe joint 2 and the internal drill pipe joint 5 are both 415mm.
[0038] Both the double-shoulder...
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The invention discloses a stable detachable drill rod device, including a drilling pipe external threaded joint, a drill pipe internal threaded joint and a drill pipe body. The drill pipe body and thedrill pipe external threaded joint are connected in a friction butt welding mode, and the drill pipe body and the drill pipe internal threaded joint are connected in a friction butt welding mode. Thedrill pipe body comprises an inner pipe body and an outer pipe body; one end of the inner pipe body is fixedly connected with the drill pipe external thread joint; the other end of the inner pipe body is inserted into the outer pipe body; the other end of the outer pipe body is fixedly connected with the drill pipe internal threaded joint; and the inner pipe body and the outer pipe body are fixedly connected through an inner hexagon bolt piece. The inner hexagon bolt piece comprises a nut and a screw fixedly connected with the nut, a screw notch is formed beside the inner hexagon bolt piece and is conical, a pin block is clamped in the screw notch, one face of the pin block is a cylindrical face, the other face of the pin block is an inclined face, and the inclined face abuts against thesmooth screw.
Description
technical field [0001] The invention relates to the technical field of drill pipe equipment, in particular to a stable and detachable drill pipe device. Background technique [0002] With the increasing difficulty of oil and gas extraction, drill pipes are required to have better quality performance. At the same time, the requirements of modern drilling technology for the improvement of drilling speed and efficiency are also increasing, and higher requirements are put forward for the mud circulation speed, while the technical performance and structural size of API standard drill pipes can no longer meet the requirements of drilling speed and efficiency improvement. . Therefore, in order to meet the requirements of high displacement, high drilling speed, high strength, and high life, a non-API high torsion-resistant large water hole drill pipe structure is designed to improve drilling efficiency, reduce energy consumption, improve drill pipe performance and use. Lifespan is...
Claims
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IPC IPC(8): E21B17/00E21B17/042
Inventor 刘蓉龚剑兵
Owner NANTONG YONGDA PIPE IND