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Electronic control type downhole mud distributing hydraulic power tool and method thereof

A hydraulically powered, electronically controlled technology for earthmoving, flushing wellbore, wellbore/well components, etc.

Active Publication Date: 2020-10-23
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional formation pressure acquisition methods mainly include seismic wave method, penetration rate method, logging method and formation testing method, but the conventional formation pressure prediction / detection methods all have certain deficiencies

Method used

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  • Electronic control type downhole mud distributing hydraulic power tool and method thereof
  • Electronic control type downhole mud distributing hydraulic power tool and method thereof

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Embodiment Construction

[0021] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0022] like figure 1 As shown, an electronically controlled downhole mud diversion hydraulic power tool of the present invention includes a hollow diversion tool casing 1, a hollow diversion tool body 4, a hollow central shaft 10, and a pressurized oil cylinder assembly 11; the diversion tool The main body 4 is threadedly connected in the shunt tool housing 1, the pressurized oil cylinder assembly 11 is threadedly connected to the left end of the shunt tool housing 1, the right end of the central shaft 10 is threaded in the left end of the shunt tool body 4, and the left end extends to the pressure. Outside the cylinder assembly 11;

[0023] There is a gap between the central shaft 10 and the inner cavity of the left end of the shunt tool main body 4, and the gap is the middle flow channel 14. There is also a gap between the inner cavity of the left end ...

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Abstract

The invention discloses an electronic control type downhole mud distributing hydraulic power tool and a method thereof. The electronic control type downhole mud distributing hydraulic power tool comprises a distributing tool shell, a distributing tool body, a center shaft and a pressurizing oil cylinder assembly. The distributing tool body is mounted in the distributing tool shell, the pressurizing oil cylinder assembly is mounted at one end of the distributing tool shell, and one end of the center shaft sequentially penetrates through the pressurizing oil cylinder assembly and the distributing tool shell to be connected into the left end of the distributing tool body. A distributing inlet and a pressure relief opening are formed in the right end of the distributing tool body, a distributing solenoid valve is arranged in the distributing inlet, and a pressure relief solenoid valve is arranged in the pressure relief opening. The distributing tool is simple in structure, higher in reliability and convenient to control, mud can communicate with an inner cavity of the distributing tool, and the distributing function of the downhole mud power distributing tool can be achieved; and mud pressure can be converted into oil pressure, and therefore a hydraulic power source is provided for a while-drilling formation pressure measuring instrument, and a hydraulic power source can also be provided for downhole tools and instruments of other types.

Description

technical field [0001] The invention relates to a diverting tool used for a formation pressure measuring instrument while drilling, in particular to an electronically controlled downhole mud diverting hydraulic power tool and a method thereof. Background technique [0002] Formation pressure refers to the pressure of fluid (oil, gas, water) in the formation pores, also known as formation pore pressure. For deep exploration, oil and gas exploration, geothermal development, CO 2 Formation pressure is one of the most important basic parameters in engineering involving deep well drilling, such as geological storage, geological disposal of nuclear waste, etc. It is of great significance to accurately predict / detect formation pressure. Conventional formation pressure acquisition methods mainly include seismic wave method, drilling rate method, well logging method and formation testing method, but conventional formation pressure prediction / detection methods all have certain defici...

Claims

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Application Information

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IPC IPC(8): E21B21/08E21B21/10E21B47/06
CPCE21B21/08E21B21/10E21B47/06
Inventor 马天寿刘阳陈平黄万志夏宏泉张千贵
Owner SOUTHWEST PETROLEUM UNIV