FIELD: geophysics. SUBSTANCE: gear is intended for geophysical examinations of holes. It has inner tube made of nonconductive material surrounded with electrolyte. Through holes are drilled in walls of tube uniformly over perimeter of local cylindrical sections. These holes are stopped with plugs of metals, semiconductors and porous dielectrics. Inner tube is placed with fixed clearance relative to external casing pipe. The latter is composed of three pipes conducting and nonconducting electric current. EFFECT: increased efficiency of resistivity logging. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DEVICE FOR CONTROL OF WELL-LOGGING EQUIPMENT | 1991 |
|
RU2042809C1 |
| DEVICE FOR SIMULATION OF ELECTRICAL PROPERTIES OF ROCK | 1993 |
|
RU2065958C1 |
| METHOD OF ELECTRICAL LOGGING FOR OIL AND GAS WELLS | 0 |
|
SU1701900A1 |
| DEVICE FOR TESTING ELECTRIC WELL-LOGGING APPARATUS | 0 |
|
SU934420A1 |
| DEVICE FOR MONITORING DEEP-WELL APPARATUS | 0 |
|
SU827764A1 |
| APPARATUS FOR MONITORING REPRODUCIBILITY OF DOWN-HOLE INSTRUMENT READINGS | 0 |
|
SU1239283A1 |
| DOWNHOLE ELECTROMAGNETIC TELEMETRY MONITORING DEVICE | 2021 |
|
RU2773471C1 |
| SEAM ELECTRICAL RESISTANCE DETERMINATION METHOD | 0 |
|
SU1038913A1 |
| 0 |
|
SU206475A1 | |
| METHOD OF SECURING A HIDDEN CASING STRING OF A BOREHOLE WITH ROTATION AND CEMENTING OF THE ZONE ABOVE THE PRODUCTIVE FORMATION | 2020 |
|
RU2745147C1 |
