Easy-to-replace continuous oil pipe hydraulic directional device

Abstract

The invention relates to the technical field of petroleum drilling directional equipment, in particular to an easy-to-replace continuous oil pipe hydraulic directional device which comprises an upperjoint, a clutch shaft, a clutch sleeve, a spline sleeve, a spline shaft piston, a transposition joint, a cylinder sleeve, a core pipe, a throttling element and a lower joint. The inner side of the lower part of the upper joint is fixedly connected with the clutch shaft, the outer side of the upper part of the clutch shaft is sleeved with the clutch sleeve, the outer side of the lower part of the clutch shaft is sleeved with the spline sleeve, the inner side of the lower part of the spline sleeve is provided with the spline shaft piston arranged in the vertical direction, the outer side of thelower part of the spline shaft piston is sleeved with the transposition joint, the outer side of the transposition joint is provided with the cylinder sleeve, the inner side of the upper part of the cylinder sleeve is fixedly connected with the outer side of the lower part of the transposition joint, the inner side of the lower part of the cylinder sleeve is fixedly connected with the lower joint,the inner side of the upper part of the lower joint is provided with the throttling element capable of generating pressure drop, and the lower part of the core pipe is sleeved with the inner side ofthe upper part of the lower joint and is seated on the upper part of the throttling element. The easy-to-replace continuous oil pipe hydraulic directional device is reasonable and compact in structureand convenient to use, and has the advantages that the tool face angle is flexible to adjust, and precision is high.

Description

technical field [0001] The invention relates to the technical field of oil drilling directional equipment, and relates to an easily replaceable coiled tubing hydraulic directional device. Background technique [0002] Coiled tubing is widely used in oil and gas field workover, drilling, well completion, well logging and other operations. During operation, coiled tubing is wound on a reel and sent downhole through the injection head. Due to the characteristics of coiled tubing, pressure on bit and The torque is difficult, and the tool face angle cannot be adjusted by rotating the coiled tubing on the surface, so an orienter is required to adjust the tool face angle downhole. At present, a variety of coiled tubing directional devices have been developed at home and abroad, which can be divided into two categories: hydraulic drive directional devices and electronic drive directional devices in terms of driving force structure. The hydraulically driven directional device genera...

AI Technical Summary

Problems solved by technology

[0003] The invention provides an easy-to-replace coiled tubing hydraulic directional device, which overcomes the deficiencies of the above-mentioned prior art, and can effectively solve the problem of low adjustment accuracy of the tool face angle of the existing coiled tubing directional device

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