Near-bit electromagnetic wave electrical resistivity and gamma logging instrument
A gamma logging tool and near-drill bit technology, applied in the field of geosteering analysis in geospatial space, can solve the problems of small detection radius, inability to determine the azimuth near the formation interface in real time, and lack of azimuth characteristics, so as to achieve high tool utilization and optimized Wellbore trajectory, effect of enhanced oil and gas recovery
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[0024] like figure 1 , figure 2 , image 3 , Figure 4 As shown, the near-bit electromagnetic wave resistivity plus gamma logging tool includes a transmitting module and a receiving module, where:
[0025] The transmitting module includes a transmitting node body 7, and a gamma detector 21, a gravity sensor 22, a control circuit unit 23, an electromagnetic wave transmitting unit 24, a transmitting antenna 25, a transmitting module power supply 2, a gamma The detection signal ends of the detector 21 and the gravity sensor 22 are respectively connected with the acquisition end of the control circuit unit 23, and the output end of the control circuit unit 23 is connected with the terminal of the transmitting antenna 25 via the electromagnetic wave transmitting unit 24, and the transmitting module power supply is gamma detection Device 21, gravity sensor 22, control circuit unit 23, and electromagnetic wave emitting unit 24 supply power.
[0026] The signals detected by the...
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