While-drilling advanced forecasting apparent resistivity measuring system and method
A technology of apparent resistivity and advanced prediction, applied in electromagnetic wave detection, earthwork drilling, material impedance and other directions, can solve the problems of large influence of observation results, no effective signal measurement, single detection parameter, etc., to increase effective detection. Depth, improve detection efficiency, and improve the effect of detection accuracy
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[0040] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0041] like figure 1 As shown, an apparent resistivity measurement system for advanced forecasting while drilling includes a magnetic dipole antenna 1 installed in the drilling device and a plurality of receiving electrodes 4 distributed in the surrounding rock 3 around the borehole 2, and with A plurality of receiving electrodes 4 connected field host 5, the drilling device drills the borehole 2 in the surrounding rock 3 in the roadway 13, the field host 5 is placed in the roadway 13, the magnetic dipole antenna 1, its It is used to automatically output pulsed electromagnetic waves in real time during the process of drilling in the borehole 2 with the drilling device, and to form an induced electromagnetic field in...
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