A Borehole Electromagnetic Receiver for Detecting Subsurface Electrical Structures
A receiver and electromagnetic technology, which is applied in the field of low-frequency electromagnetic signal detection and in-well electromagnetic receivers. It can solve the problems of low-frequency noise processing, insufficient tunnel space operations, limited number of channels, and poor adaptability, etc., and achieves fast data transmission in real time. Effect
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[0048] The present invention will be further described below in conjunction with accompanying drawing:
[0049] like figure 1 As shown, a well electromagnetic receiver for detecting underground electrical structures is composed of a wellhead control unit 10, a drawworks 11, a cable 12, and a well probe 13. The well probe 13 is connected to the drawworks 11 through the cable 12, and the wellhead The control unit 10 connects the cable 12 and controls the drawworks 11 to control the probe 13 in the well.
[0050] like figure 2 As shown, the probe tube in the well is a titanium steel pipe, the front end of the titanium steel pipe is provided with a front-end malaux head, and the inside of the titanium steel pipe is provided with a power supply module 20, a communication module 21, an inclinometer module 22, a control circuit 23, an acquisition circuit 24, and an upper electrode 25. A three-axis induction coil magnetic sensor 26 , a three-axis fluxgate magnetic sensor 27 and a l...
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