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Low-pressure-loss downhole vibration acceleration tool

A tool and low-pressure technology, which is 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 pressure loss, increased vibration effect and short length of the tool

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-loss downhole vibration acceleration 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-loss downhole vibration acceleration tool. According to the technical scheme, the low-pressure-loss downhole vibration acceleration tool is composed of a pressure pulse generation tool and an amplitude amplification tool. The pressure pulse generation tool is internally provided with a moving valve slice which is driven by a turbine to rotate, the rotating speed of the moving valve slice is adjusted through a deceleration turbine, a U-shaped vortex vibration device is arranged on the lower portions of a moving and fixed valve group, flow channels are switched continuously through the moving valve slice, so that fluid in a circular vortex cavity is switched between a vortex state and a non-vortex state, when the fluid in the vortex cavity is in the vortex state, the upper part of the pressure pulse generation tool is in a high pressure state, and when the fluid in the vortex cavity is in the non-vortex state, the upper part of the pressure pulse generation tool is in a low-pressure state, so that periodic pressure pulses in the pressure pulse generation tool are generated; and the amplitude amplification tool is connected to the upper part orthe lower part of the pressure pulse generation tool to enable a bottom hole assembly to generate periodic axial vibration, the friction resistance between a drill string and a shaft wall is effectively improved, and the 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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