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Easy-to-replace continuous oil pipe hydraulic directional device

An easy-to-replace, directional device technology, applied in directional drilling, drill pipe, casing, etc., can solve the problem of low adjustment accuracy of the tool face angle, and achieve the effect of reasonable structure, convenient use and flexible adjustment

Active Publication Date: 2019-08-20
CNPC XIBU DRILLING ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Easy-to-replace continuous oil pipe hydraulic directional device
  • Easy-to-replace continuous oil pipe hydraulic directional device
  • Easy-to-replace continuous oil pipe hydraulic directional device

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Embodiment Construction

[0022] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

[0023] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the description attached to the description. figure 1 For example, the positional relationship of front, rear, top, bottom, left, right, etc. is determined according to the layout direction of the drawings in the description.

[0024] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

[0025] as attached Figure 1-8As shown, the easy-to-replace coiled tubing hydraulic directional device includes an upper joint 1, a clutch shaft 2, a clutch sleeve 3, a spline sleeve 6, a spline shaft piston 7, an indexing joint 8, a cylinder liner 11, a core tube 13, a thr...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B7/04E21B19/22
CPCE21B7/04E21B19/22
Inventor 万教育夏宏南王洪涛胡书锴段文广张瑞平苗芷芃姜朝民
Owner CNPC XIBU DRILLING ENG
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