Low pressure consumption downhole vibration speed-increasing tool

A tool, low pressure technology, applied in the field of low pressure consumption downhole vibration speed-up tools, can solve the problems of high vibration frequency and short tool life, and achieve the effects of low tool pressure consumption, increased vibration effect, and simple structure

Inactive Publication Date: 2018-10-12
乌鲁木齐九品芝麻信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a low-pressure consumption downhole vibration speed-up tool, which can reduce the pressure loss of the tool while ensuring the downhole vibration effect. The problem of making the vibration frequency too high and the problem of short tool life

Method used

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  • Low pressure consumption downhole vibration speed-increasing tool
  • Low pressure consumption downhole vibration speed-increasing tool
  • Low pressure consumption downhole vibration speed-increasing tool

Examples

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Embodiment Construction

[0027] Such as Figure 1-2 Among them, a low-pressure downhole vibration acceleration tool, a pressure pulse generation tool 15 and an amplitude amplification tool 16, the pressure pulse generation tool 15 can be connected to the upper part of the amplitude amplification tool 16, and can also be connected to the lower part of the amplitude amplification tool 16, see figure 1 , 2 middle.

[0028] Such as Figure 3-4 Among them, the outer housing 14 of the pressure pulse generating tool 15 is provided with a central shaft 3, the central shaft 3 is rotatably supported in the outer housing 14, the outer housing 14 and the central shaft 3 are provided with a driving turbine 5, and the lower part of the driving turbine 5 is provided with The reduction turbine 6, the number of the driving turbine 5 and the reduction turbine 6 can be arbitrary, and can be combined arbitrarily, so that the rotational speed of the central shaft 3 can be adjusted, and the lower end of the central shaft...

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Abstract

The invention relates to a low pressure consumption downhole vibration speed-increasing tool. According to the technical scheme, the low pressure consumption downhole vibration speed-increasing tool is composed of a pressure pulse generating tool and an amplitude amplifying tool. The pressure pulse generating tool is internally provided with a moving valve plate, the moving valve plate is driven by turbines to rotate, and the rotating speed of the moving valve plate is adjusted by speed reducing turbines; and a U-shaped vortex vibration device is arranged on the lower part of a moving and stationary valve group, flow passages are continuously switched by the moving valve plate to enable fluid in a circular vortex chamber to switch between the vortex state and the non-vortex state, when thefluid in the vortex chamber is in the vortex state, the upper part of the pressure pulse generating tool is in a high pressure state, and when the fluid in the vortex chamber is in a non-vortex state, the upper part of the pressure pulse generating tool is in a low pressure state, so that periodic pressure pulse is generated in the pressure pulse generating tool. The amplitude amplifying tool isconnected to the upper part or the lower part of the pressure pulse generating tool, so that a bottom drilling assembly generates periodic axial vibrations, the frictional resistance between a drill stem and the wall of a well is effectively improved, and the well drilling speed is improved.

Description

[0001] This application is a divisional application of the invention patent application with the application number: 2016105506165, the name of the invention: a low-pressure consumption downhole vibration speed-up tool, and the application date: July 14, 2016. technical field [0002] The invention relates to the fields of petroleum and natural gas exploitation and drilling tools, in particular to a low-pressure downhole vibration speed-increasing tool. Background technique [0003] With the wide application of highly deviated wells and horizontal wells, during the drilling process, due to the self-weight of the drilling tool, the friction between the drilling tool and the well wall during drilling is large, resulting in the back pressure of the drilling tool, which seriously affects the drilling of horizontal wells Therefore, reducing friction, increasing dynamic drilling pressure and improving drilling efficiency are urgent problems to be solved in current drilling engineer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B4/02E21B7/24
CPCE21B4/02E21B7/24
Inventor 不公告发明人
Owner 乌鲁木齐九品芝麻信息科技有限公司
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