FIELD: geophysics.
SUBSTANCE: nuclear magnetic logging device contains a downhole instrument consisting of a nuclear magnetic logging (NML) sensor, a measurement, control and adjustment circuit, a processor, connected to ground equipment consisting of a polarization current pulse generator and a measurement unit, using a logging cable. The downhole device additionally contains a MEMS sensor, which is a magnetometer and an accelerometer or a magnetometer and a gyroscope, which communicates with the processor and is installed above the NML sensor by at least 40 cm with the possibility of eliminating the influence of the NML sensor on its readings.
EFFECT: increase in the accuracy of determining the resonant frequency with obtaining their values in continuous mode and over the entire range of changes.
1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MEASURING NUCLEAR-MAGNETIC PROPERTIES OF WELL ROCK | 1999 |
|
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| 0 |
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| DEVICE FOR CARRYING OUT LOGGING IN ORE HOLES | 2010 |
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RU2457516C1 |
