Active alternating magnetic field information-based method for guiding and positioning well drilling track
An alternating magnetic field, guiding and positioning technology, which is applied to drilling equipment, directional drilling, drilling automatic control systems, etc., can solve the problems of insufficient positioning accuracy of guiding technology, and achieve the effect of avoiding the accumulation of errors
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[0040] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.
[0041] An alternating magnetic field guiding device, such as figure 1 As shown, the device includes an artificial magnetic pole module 1 near the drill bit, a target terminal module 2 and a source terminal control module 3;
[0042] The artificial magnetic pole module 1 near the drill bit emits low-frequency alternating magnetic field signals, and the target terminal module 2 collects the low-frequency alternating magnetic field signals emitted by the artificial magnetic pole module 1 near the drill bit, and calculates the relative orientation and distance between the drill bit and the target point. The relative azimuth and distance information between target points is transmitted to the driller instruction control unit 301 of the source control module 3 through the long-distance transmission unit 7 of the target terminal module 2, and the driller ins...
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