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Mine intelligent electromagnetic wave measurement system while drilling

A measurement-while-drilling, electromagnetic wave technology, applied in construction and other directions, can solve the problems of great influence on transmission quality, low transmission rate, only one-way communication, etc. Effect

Active Publication Date: 2018-11-20
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the measurement while drilling in coal mines still uses a wired method to transmit the measured attitude data to the orifice, and a special cable-through drill pipe is used to form the transmission channel. However, the processing technology of the cable-through drill pipe is complicated and expensive, and its transmission quality is limited. The sealing condition at the joint has a greater influence
[0003] The existing wireless measurement-while-drilling technology often uses mud pulses to form a transmission channel, but the mud pulse measurement-while-drilling technology is not suitable for air, foam and unbalanced drilling, and the transmission rate is low and only one-way communication

Method used

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  • Mine intelligent electromagnetic wave measurement system while drilling
  • Mine intelligent electromagnetic wave measurement system while drilling

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Embodiment 1

[0026] An embodiment of the present invention provides a mine-used intelligent electromagnetic wave measurement while drilling system, such as figure 1 As shown, the system includes an orifice device 1 and an in-hole transmission device 2 transmitted by electromagnetic waves;

[0027] The aperture device 1 includes a power supply 11, an aperture antenna 12, an aperture transceiver module 13, a noise analysis module 14, an aperture CPU module 15, an industrial computer and a display module 16;

[0028] The power supply 11 includes a portable intrinsically safe power supply and a fixed explosion-proof and intrinsically safe power supply. The rechargeable battery pack or underground coal mine industrial power is boosted or stepped down through isolation, LDO voltage stabilization and two-stage voltage limiting and current limiting. Respectively supply aperture transceiver module 13, noise analysis module 14, aperture CPU module 15, industrial computer and display module 16 in the...

Embodiment 2

[0045] The embodiment of the present invention also provides a mine-used intelligent electromagnetic wave measurement while drilling system, such as figure 2 As shown, the system includes an orifice device 1 and an in-hole transmission device 2 transmitted by electromagnetic waves;

[0046] The aperture device 1 includes a power supply 11, an aperture antenna 12, an aperture transceiver module 13, a noise analysis module 14, an aperture CPU module 15, an industrial computer and a display module 16;

[0047] The power supply 11 includes a portable intrinsically safe power supply and a fixed explosion-proof and intrinsically safe power supply. The rechargeable battery pack or underground coal mine industrial power is boosted or stepped down through isolation, LDO voltage stabilization and two-stage voltage limiting and current limiting. Respectively supply aperture transceiver module 13, noise analysis module 14, aperture CPU module 15, industrial computer and display module 16...

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Abstract

The invention discloses an intelligent electromagnetic wave measurement-while-drilling system for mining use, comprising a hole collar device and an in-hole transmission device which perform transmission via electromagnetic waves; a power supply of the hole collar device is respectively connected with a hole collar transceiving module, a noise analyzing module, a hole collar CPU module, a industrial personnel computer and a display module; two ends of a hole collar antenna are respectively connected with the hole collar transceiving module; the hole collar transceiving module, the noise analyzing module, the industrial personnel computer and the display module are all connected with the hole collar CPU module; the in-hole transmission device comprises an electromagnetic wave wireless transmission module; the electromagnetic wave wireless transmission module comprises a battery, an intelligent power management module, an in-hole antenna, an in-hole transceiving module, and an in-hole CPU module; the intelligent power management module is connected with the battery, the in-hole transceiving module, and the in-hole CPU module; the in-hole transceiving module is respectively connected with the in-hole CPU module and the in-hole antenna. The invention is able to set modulation modes such as frequency modulation, phase modulation, and spread spectrum at the hole collar, and send the commands to an in-hole device.

Description

technical field [0001] The invention belongs to the technical field of measurement-while-drilling in coal mines, and in particular relates to an intelligent electromagnetic wave measurement-while-drilling system for mining. Background technique [0002] In order to ensure the safe and efficient mining of coal mines, it is usually necessary to construct a large number of gas drainage boreholes and water detection and discharge holes underground in coal mines. To measure the drilling trajectory in real time to guide the design and construction of the drilling. At present, the measurement while drilling in coal mines still uses a wired method to transmit the measured attitude data to the orifice, and a special cable-through drill pipe is used to form the transmission channel. However, the processing technology of the cable-through drill pipe is complicated and expensive, and its transmission quality is limited. The sealing condition at the joint has a greater influence. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/13
CPCE21B47/13
Inventor 汪凯斌张冀冠连杰
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP