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Steel wire rope pushing device for drilling tool fishing

A technology of pushing device and steel wire rope, which is applied in the direction of earthwork drilling, wellbore/well parts, etc., can solve the problem of low success rate of drilling tool recovery, and achieve the effect of strong deformation adaptability

Inactive Publication Date: 2016-10-26
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 shortcomings of the low success rate of drilling tool recovery in the existing drilling tool recoverable casing drilling process, a wire rope pushing device for drilling tool salvage is specially provided

Method used

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  • Steel wire rope pushing device for drilling tool fishing
  • Steel wire rope pushing device for drilling tool fishing
  • Steel wire rope pushing device for drilling tool fishing

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Embodiment Construction

[0017] The present invention is not limited by the following implementation examples, and specific implementations can be determined according to the technical solutions and actual conditions of the present invention. Combine below Figure 1~3 The present invention will be described below. The positional relationship of up, down, left and right is based on the instructions attached figure 1 The layout direction is determined.

[0018] A step is set in the middle of the mandrel 3, and the mounting ring 6 is set at the step of the mandrel 3 and is connected by thread; the upper end of the mandrel 3 is connected to the upper joint 1 by a taper buckle, and the upper end of the upper joint 1 is provided with a female buckle for connecting the upper tool; the lower end of the mandrel 3 The sliding sleeve 10 is installed, the sliding sleeve 10 is sleeved outside the mandrel 3, the lower end of the sliding sleeve 10 is connected to the lower joint 11 with a taper buckle, and the lower e...

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Abstract

The invention relates to a steel wire rope pushing device for drilling tool fishing. The steel wire rope pushing device is mainly applied to drilling tool fishing in casing drilling. According to the technical scheme, an upper connector is installed at the upper end of a mandrel, and a sliding sleeve is installed at the lower end of the mandrel; one end of an upper connecting rod is hinged to the upper connector, and the other end of the upper connecting rod is hinged to a connecting block; one end of a lower connecting rod is hinged to the sliding sleeve, and the other end of the lower connecting rod is hinged to the connecting block; and an installation ring is arranged in the middle of the mandrel, a flow blocking device is arranged between the installation ring and the connecting block, and the installation ring and the sliding sleeve are connected through extension springs. According to the steel wire rope pushing device, the traction force can be adjusted by adjusting the flow speed of a medium in a casing, and the steel wire rope pushing device can be applied to casing drilling of horizontal wells and extended-reach wells.

Description

Technical field [0001] The invention relates to a wire rope pushing device for drilling tool fishing, which is specifically applied to the wire rope operation of oil and gas wells, especially the drilling tool fishing operation in casing drilling. Background technique [0002] Casing drilling system refers to a drilling system that uses ordinary casing as a 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 the number of trips, shortening the tripping time, saving costs, and reducing downhole accidents. [0003] At present, retrievable casing drilling tools are the most widely used. The process uses wire rope to fish the lower casing drilling tool. Wire rope lifting and lowering has the advantages of high efficiency and speed, and is widely used in workover, fishing, logging and other operations. In t...

Claims

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Application Information

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Patent Type & Authority Applications(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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