FIELD: geophysical investigations; locating flaws in cement stone and casing string followed by reconnaissance or repair work. SUBSTANCE: device has logger 1 and flaw angular position detector 2. Their cases are fixed together. Case 3 accommodates moving frame 4 with eccentric weight 5. The latter mounts on its axis permanent magnet 6. Area with ferroprobes 7 is provided in case opposite magnet 6. EFFECT: provision for relative fixation of flaws and perforation holes to apsidal plane of hole. 1 dwg
| Title | Year | Author | Number |
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RU2114298C1 |
