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A wire rope feeding device

A technology of feeding device and wire rope, which is applied in wellbore/well components, earth-moving drilling, etc., can solve the problems of low recovery success rate of drilling tools, etc., and achieve the effect of strong deformation adaptability

Inactive Publication Date: 2018-02-23
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Purpose of the present invention: In order to overcome the disadvantage of low success rate of drilling tool recovery in the existing drill tool recoverable casing drilling process, a wire rope feeding device is specially provided

Method used

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  • A wire rope feeding device
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Embodiment Construction

[0016] The present invention is not limited by the following implementation examples, and specific implementation manners can be determined according to the technical solutions of the present invention and actual conditions. Combine below figure 1 , figure 2 The present invention is described below. The positional relationship of up, down, left, right, etc. is based on the attached figure 1 determined by the layout direction.

[0017] The sliding sleeve 1 is installed outside the mandrel 5, the upper end of the sliding sleeve 1 is provided with a threaded joint for connecting the wire rope connector or the upper tool, the sliding sleeve 1 is provided with a radial through hole near the threaded joint, and the middle position of the sliding sleeve 1 is provided with a radial through hole. A step is arranged in the sliding sleeve 1 , and the compression spring 4 is installed in the annular space between the sliding sleeve 1 and the mandrel 5 . The upper end of the mandrel 5...

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Abstract

The invention relates to a steel-wire-rope feeding device. The steel-wire-rope feeding device is mainly applied to drilling-tool salvage operation in sleeve well drilling. According to the technical scheme, a sliding sleeve is installed outside a spindle, compression springs are arranged between the upper end of the spindle and the sliding sleeve, a lower connector is installed at the lower end of the spindle, upper supporting rods and the lower supporting rods are hinged, the other ends of the upper supporting rods are hinged to the sliding sleeve, the other ends of the lower supporting rods are hinged to the lower connector, and a umbrella-type sleeve is installed on the lower supporting rods. The steel-wire-rope feeding device has the automatic diameter changing function, and the sleeve deformation adaptability is high.

Description

technical field [0001] The invention relates to a wire rope feeding device, which is specifically applied to wire rope operations in oil and gas wells, especially drilling tool fishing operations in casing drilling. Background technique [0002] The casing drilling system refers to a drilling system that uses ordinary casing as the drill string. The casing not only transmits mechanical energy (torque) but also transmits liquid energy to the drill bit. It can run casing while drilling, saving a lot of well construction costs. It has the advantages of reducing tripping times, shortening tripping time, saving costs, and reducing downhole accidents. [0003] At present, retrievable casing drilling tools are the most widely used, and this process uses wire rope to salvage the lower part of the casing. Wire rope hoisting has the advantages of high efficiency and rapidity, and is widely used in workover, salvage, logging and other operations. In the conventional wire rope fishin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B31/12
CPCE21B31/12
Inventor 张梁邓严刘稳邓兰何虹钢
Owner SOUTHWEST PETROLEUM UNIV
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