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
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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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