FIELD: magnetic measurements. SUBSTANCE: heteropolar stabilized current former 2 is introduced into the device, as well as measuring unit is brought into analog storage units 8. Device also has adding amplifier 9, subtracting amplifier 10 and the second coil 4, disposed into down-hole logging instrument, square pulses generator 1, feedback unit 11, down-hole logging instrument. Magnetizing coil 3 is disposed inside the instrument, connected with coil 4, as well as ferroprobe 5. Device permits to measure susceptibility of rocks in wells when large temperature gradient is available. EFFECT: improved precision of measurement in wide temperature range. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2762821C1 |
| DEVICE FOR STUDIES OF DYNAMIC STATE OF ROCKS IN WELL | 2013 |
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RU2533334C1 |
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SU911420A1 |
| LOCATOR OF PERFORATION HOLES AND COUPLINGS OF FERROMAGNETIC CASINGS | 2000 |
|
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| TRANSMITTER OF GEOMAGNETIC BENCH MARK | 0 |
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| METHOD FOR INCREASING THE NOISE IMMUNITY OF THE TECHNOLOGY FOR LOCATING SLEEVE JOINTS OF CASING STRINGS OF GEOLOGICAL EXPLORATION WELLS AND A DEVICE FOR ITS IMPLEMENTATION | 2022 |
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| DEVICE FOR UNCASED WELL-LOGGING | 0 |
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SU879533A1 |
