Drill rod for directional branch drilling

Abstract

The invention discloses a drill rod for directional branch drilling, and relates to the field of directional drilling, the drill rod comprises a drill rod body, the drill rod body comprises a pipe body and a cable, one end of the pipe body is provided with a male joint, the other end of the pipe body is provided with a female joint, the inner circumferential wall of the female joint is provided with an internal thread, the outer circumferential wall of the male joint is provided with an external thread, and the joint of the external thread of the male joint and the pipe body is provided with a butt joint table; a reinforcing protrusion is arranged on the periphery of the butt joint table, an anti-loosening clamping assembly is arranged between the male connector and the female connector and comprises an embedded groove, a supporting rod and an anti-loosening protrusion are arranged in the embedded groove, and an embedded groove is formed in the female connector. The strength of the butt joint table and the joint of the male joint external thread and the pipe body can be further enhanced by arranging the reinforcing protrusions, the reinforcing protrusions can be abraded firstly, excessive abrasion of the butt joint table is avoided, the male joint and the female joint can be stably fixed by arranging the anti-loose clamping assemblies during drilling vibration and rotation, thread abrasion is reduced, and the service life of the male joint and the female joint is prolonged. The probability of fracture or deformation at the male and female joints is reduced, and the service life of the drill rod is prolonged.

Description

technical field [0001] The present invention relates to the field of directional drilling, and more particularly to the technical field of drill pipes. Background technique [0002] Directional drilling was first used for oil drilling in the 1930s. It was used for geological drilling in the early 1950s. With the successful development of new continuous whipstock and small-diameter screw drills (motors), the application of diamond bits and inclinometers while drilling has made controlled directional drilling one of the modern advanced drilling technologies. [0003] Because controlled directional drilling technology can provide accurate geological data, save drilling site and drilling workload, and speed up geological exploration, it has been widely popularized and applied. With the progress of science and technology, the introduction of microcomputer and navigation technology; small-diameter hole bottom power machine (screw drill), measurement while drilling system, etc. h...

AI Technical Summary

Problems solved by technology

[0007] In order to save investment, the directional drilling equipment used by the construction contractor often does not match the actual needs of the project. The tonnage of the directional drilling equipment is too small, the maintenance is not timely, and the failure rate is high, which makes the directional drilling force uneven. The stop and stop results in poor hole quality and irregular holes, and the drilling tool is easy to lock. At the same time, the stress and torque of the drill pipe are often concentrated on the male joint and the female joint, resulting in the formation of a dangerous area where the thread of the joint is easy to break. Thin wall, high-intensity vibration and rotation at the same time, long-term high-intensity use often leads to fracture or deformation of the drill pipe at the male and female joints, and often causes excessive wear of the male and female joint threads

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