Wear-proofing protection sleeve for oil drilling rod

Abstract

The invention relates to the technical field of oil field equipment and particularly discloses a wear-proofing protection sleeve for an oil drilling rod. The wear-proofing protection sleeve comprisesa wear-proofing sleeve body and clamps. The oil drilling rod is sleeved with the wear-proofing sleeve body; the clamps are used for fixing the wear-proofing sleeve body; a horn mouth is formed in oneend of the wear-proofing sleeve body, and a circle of rotating edge is inwards arranged at the edge of the horn mouth; the wear-proofing sleeve body is constituted by a plastic body, and the plastic body is made of a polyurethane rubber material; flow channels in groove shapes are evenly formed axially in the outer circular wall face of the wear-proofing sleeve body; a metal reinforcing layer matched with the cylindrical shape of a sleeve main body is arranged in the wear-proofing sleeve body, the two ends of the reinforcing layer are connected with metal skeletons, and the outer ends of the skeletons are flush with the ends of the sleeve main body; and horn mouths opening gradually from inside to outside are formed in the two ends of the flow channels. The wear-proofing protection sleevehas the advantages that the problem that the oil drilling rod and the inner wall of a casing make contact directly, and thus the casing is worn through is solved, and the drilling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of oil field equipment, and specifically discloses an anti-wear protection sleeve for oil drill rods. Background technique [0002] In the exploration and development of oil and gas fields, technical casing is a series of high-strength steel pipes that are lowered before drilling high-pressure oil and gas layers. After sealing the annular space with cement, it can strengthen the wellbore, withstand internal pressure, and isolate collapse. Formation and high-pressure water layer, separate different pressure layers to establish normal drilling fluid circulation, and at the same time provide a reliable guarantee for the installation of well control equipment, blowout prevention, leakage prevention and tailpipe suspension, and also protect the casing of the oil layer , which laid a good foundation for subsequent drilling and test production operations. [0003] During the drilling construction process in the te...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an oil drill pipe anti-wear protection sleeve, which solves the problem of wearing through the casing due to the direct contact between the oil drill pipe and the inner wall of the casing, and improves the drilling efficiency

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