Digital representation method and device for measuring electromagnetic wave data while drilling in bad geological tunnels
A technology of measuring and displaying devices while drilling, which is applied in the directions of measurement, character and pattern recognition, earthwork drilling and mining, etc. It can solve the problems that cannot meet the needs of real-time and accurate data transmission, low transmission rate, and affect the real-time control of drilling
Active Publication Date: 2021-02-19
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
[0003] At present, the data transmission of the measurement while drilling in the tunnel construction is generally wired and wireless. The wired data transmission method is used to transmit the drilling attitude data from the hole to the hole. It is necessary to use the drill pipe and the attitude measuring instrument that can pass through the cable. Connection, the processing of this kind of drill pipe is complicated and the cost is high; the quality of data transmission will also be affected by the sealing of the joint; the wireless method uses pulse signals to transmit through the mud, but when the mud contains more air or foam, the transmission The rate is low and can only be transmitted in one direction; both wired and wireless methods cannot meet the needs of real-time and accurate data transmission, thus affecting the real-time control of drilling
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[0048]The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0049]Such asfigure 1 As shown, the embodiment of the present invention provides a digital representation method of electromagnetic wave data measured while drilling in a tunnel with poor geology, including the following steps:
[0050]The S100 equipment is installed in place. When the tunnel is being drilled, it will follow the drill to measure the inclination, azimuth and face angle of the borehole, and convert the measured data into the first electromagnetic wave signal, and the probe tube assembly will emit the first electromagnetic wave signal ;
[0051]The S200 controller receives the first electromagnetic wave signal, constructs a signal discriminant model, uses the waveform of th...
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The invention provides a method and a device for digital representation of electromagnetic wave data for measurement while drilling in unfavorable geological tunnel. Electromagnetic wave signal, build a signal discrimination model, and identify the first electromagnetic wave signal; 3. Restore the identified first electromagnetic wave signal, and analyze the obtained measurement data to generate a control command, and convert the control command into a second electromagnetic wave signal for transmission; 4. Receive The second electromagnetic wave signal is identified and decoded to restore the control instructions and control the borehole; 5. To measure the borehole location and borehole trajectory, and draw a three-dimensional map to display the design geology and the location of poor drilling geology. The device includes a computer, a controller and a probe tube assembly; the controller includes a first electromagnetic wave interaction module and a signal identification module; the probe tube assembly is installed on the drill pipe, and the probe tube assembly includes a second electromagnetic wave interaction module.
Description
Technical field[0001]The invention relates to the technical field of data processing and tunnel engineering construction, in particular to a digital representation method and device for measuring electromagnetic wave data while drilling in poor geological tunnels.Background technique[0002]In the construction of tunnel engineering, it is often necessary to use a drill bit for drilling. Drilling needs to be controlled in real time to adjust the drilling status, if necessary, to ensure the smooth progress and quality of the tunnel construction, and to carry out the tunnel under poor geological conditions This is especially important in engineering construction.[0003]At present, the data transmission of measurement while drilling in tunnel construction is generally wired and wireless. Wired data transmission is used to transmit the drilling attitude data from the hole to the orifice. It is necessary to use a drill rod and attitude measuring instrument that can be connected to a cable. C...
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IPC IPC(8): E21B47/022E21B47/13E21B47/26E21B44/00G06K9/62G06F17/11
CPCE21B47/022E21B44/005G06F17/11G06F18/214
Inventor 高军陈志明谭发刚吴德兴黄正凯张旭东罗红明林晓杨立云项小珍陈敏汤宇刘德安王圣彭学军杨文国谢晓波李行利
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI