FIELD: geophysical and hydrodynamic investigations of operating wells with high wellhead pressure. SUBSTANCE: device for performance of round-trip operations in well has load-lifting means 1 made in form of mounting column 9 carrying mechanism for lifting and installation of lock chamber 2. Mechanism consists of body, side walls with supports and bracket 19 including fork 20 with retainer 21. Located between body and fork is spring weight compensator. Mounted on side walls is winch 12 from which flexible member 17 passes via block 15 and seal 16 to member which serves to join tool. Compression spring is fastened between seal 16 and joining member. Guide roller 7 has retaining device and is located on mounting column 9 for cable motion along axis of well 6 and seal joined with preventor 3 through signal unit 8. EFFECT: provision of performance of geophysical and hydrodynamic investigations irrespective of length of logging device, well equipment and avallability of load lifting device. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR RUNNING OF INSTRUMENTS INTO WELL HIGH WELLHEAD PRESSURE | 1990 |
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SU866144A1 |
