Power supply type near-bit geological guiding measuring short section not provided with power source

A power supply and geosteering technology, which is applied in surveying, earthwork drilling, wellbore/well components, etc., to achieve the effects of simple structure, improved safety and shortened length

Inactive Publication Date: 2017-05-17
北京赛诺凤凰能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the deficiencies in the prior art, to provide a non-self-powered near-drill geosteering measurement nipple, which uses an external power supply and wired transmission mode to realize the measurement and signal transmission of near-drill engineering parameters and address parameters , overcome the problems of working life, working stability and engineering safety of conventional instruments

Method used

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  • Power supply type near-bit geological guiding measuring short section not provided with power source
  • Power supply type near-bit geological guiding measuring short section not provided with power source
  • Power supply type near-bit geological guiding measuring short section not provided with power source

Examples

Experimental program
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Effect test

Embodiment 1

[0027] See figure 1 , figure 2 .

[0028] A non-self-powered near-bit geosteering measurement sub-section, including a housing 1001-01, a control and measurement circuit 1001-02, a mechanical pressure-bearing device 1001-03, a wire channel 1001-04, and a wire:

[0029] The lower end of the housing 1001-01 is connected with the drill bit and the upper end is connected with the screw drill tool. The control and measuring circuit 1001-02 is installed in the side wall of the housing through the mechanical pressure bearing device 1001-03. The side wall of the housing is provided with a parallel to the axis of the short section. The wire channel 1001-04, one end of the wire in the wire channel 1001-04 is connected with the control and measurement circuit 1001-02, and the other end is led out from the end surface of the housing to be connected with an external power supply or communication device.

[0030] In an embodiment of the present invention, the mechanical pressure bearing device 10...

Embodiment 2

[0036] See image 3 .

[0037] A non-self-powered near-bit geosteering measurement sub-section, including a housing 1002-01, a control and measurement circuit 1002-02, a mechanical pressure-bearing device 1002-03, a wire channel 1002-04, a wire and a shell pass Line protector 1002-05:

[0038] The lower end of the housing 1002-01 is connected with a drill bit and the upper end is connected with a screw drill tool. The control and measurement circuit 1002-02 is installed in the side wall of the housing through a mechanical pressure-bearing device 1002-03. The side wall of the housing is provided with a wire channel 1002-04, The wire channel 1002-04 extends to the inner wall of the side wall of the housing. One end of the wire in the wire channel is connected to the control and measurement circuit 1002-02, and the other end is led out from the inner wall of the side wall of the housing, and the housing wire protector 1002-05 Installed inside the shell, the shell wire-passing protec...

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Abstract

The invention relates to a power supply type near-bit geological guiding measuring short section not provided with a power source. The power supply type near-bit geological guiding measuring short section comprises a shell, a controlling and measuring circuit, a mechanical pressure-bearing device, a wire passageway and wires. A drill bit is connected to the lower end of the shell, a screw drilling tool is connected to the upper end of the shell, and the controlling and measuring circuit is installed in the side wall of the shell through the mechanical pressure-bearing device. The wire passageway parallel to the axis of the short section is formed in the side wall of the shell, one end of each wire in the wire passageway is connected with the controlling and measuring circuit, and the other end of each wire in the wire passageway is led out of the end face of the shell and is connected with an external power supply or communication device. The power supply type near-bit geological guiding measuring short section not provided with the power source has the advantages that (1) the structure is simple, the short section is shortened, and safety of well drilling is greatly improved; (2) the functions of single core or multi-core wire power supply and communication with an MWD system are achieved, and datum transmission is more reliable; and (3) by utilizing a storing and wireless sending space of an original battery, measurement of more drilling engineering parameters and geological parameters can be achieved.

Description

Technical field [0001] The patent of the present invention relates to a non-self-powered wired near-bit geosteering measurement nipple tool during drilling. The tool is usually connected between the downhole screw drilling tool (also called mud motor) and the drill bit to achieve separation The measurement of one or more parameters of the closest distance to the drill bit, such as: well deviation, average gamma, azimuth gamma, bit speed, vibration, resistivity, weight on bit, torque, annulus pressure, etc. Background technique [0002] As directional wells and extended reach wells account for an increasing proportion of petroleum exploration and development, the application of MWD tools and LWD tools has become more common. Whether it is MWD and logging-while-drilling LWD measured drilling engineering parameters such as inclination, azimuth, weight on bit, torque, vibration and annulus pressure, etc.; geological parameters such as formation gamma count and resistivity value plasm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B49/00
CPCE21B47/00E21B49/00
Inventor 文趣群陈福正王玉东
Owner 北京赛诺凤凰能源科技有限公司
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