FIELD: oil and gas industry.
SUBSTANCE: invention can be used to perform works of vertical seismic profiling (VSP) and its polarisation modification (VSP PM) in cased boreholes at geophysical development of oil, gas and other mineral deposits. Seismic logging bottom-hole instrument containing the housing of sensors is proposed. In addition, instrument includes split-type thin-wall cylinder and its curvature changing device. Height of thin-wall cylinder is larger than length of sensor housing. Housing of sensors is rigidly fixed on inner surface of cylinder. Cylinder curvature changing device is rigidly attached to the sensor housing.
EFFECT: improvement of mechanical connection of bottom-hole instrument housing to the wall of casing string.
6 cl, 10 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SEISMIC LOGGING APPLIANCE FOR VERTICAL, INCLINED AND HORIZONTAL BOREHOLES | 2021 |
|
RU2775145C1 |
| DOWN-HOLE LOGGING INSTRUMENT | 2002 |
|
RU2225627C1 |
| DOWNHOLE SEISMIC TOOL | 2012 |
|
RU2503978C1 |
| WELL SEISMIC TOOL | 2010 |
|
RU2444030C1 |
| CLAMPING DEVICE FOR BOREHOLE SEISMIC INSTRUMENT | 0 |
|
SU1702334A1 |
| SPAN-7 BOREHOLE SEISMIC PROBE | 2012 |
|
RU2523096C2 |
| DEEP-WELL PUMP DRIVE | 2006 |
|
RU2368805C2 |
| DOWNHOLE DEVICES WITH POSITION ADJUSTMENT IN RADIAL DIRECTION AND METHODS FOR DOWNHOLE DEVICES USAGE | 2004 |
|
RU2319833C2 |
| SEISMIC WELL PROBE | 2005 |
|
RU2305299C2 |
| CENTERING PRESSURE DEVICE FOR WELL INSTRUMENTS | 2001 |
|
RU2235201C2 |
