FIELD: physics.
SUBSTANCE: proposed invention relates to exploration geophysics, specifically to devices for producing seismic signals, and can be used in oil and gas seismic prospecting. The Sibiryak source is a linear type device with at least two separate working volumes of compressed air, which are simultaneously opened through a trigger - electropneumatic valve. The ratio of the upper and lower sealing diametres of the valves of the pneumatic chamber increase linearly from top to bottom of the head pneumatic chamber. A high-power seismic signal forms in the medium. Transmission of the power pulse is matched with the value of contact-sealing pressure in the chambers of the source.
EFFECT: generation of a high-power seismic signal when working inside wells using a vertical seismic profiling (VSP) method and provision for stable synchronisation of the discharge time of the pneumatic chamber of the source upon instruction by the trigger of the electropneumatic valve.
2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PNEUMATIC SOURCE OF SEISMIC SIGNALS | 1991 |
|
RU2034310C1 |
| METHOD OF HIGH-RESOLUTION SEISMIC PROSPECTING AND SOURCE OF SEISMIC SIGNALS FOR ITS REALIZATION | 2000 |
|
RU2171477C1 |
| PNEUMATIC SOURCE OD SEISMIC SIGNALS AND PROCESS OF MANUFACTURE OF GROOVE IN ITS SEAL RING | 1993 |
|
RU2090907C1 |
| SEISMIC SIGNAL PNEUMATIC SOURCE | 0 |
|
SU656009A1 |
| SEA SEISMIC PROSPECTING PNEUMATIC SOURCE | 1988 |
|
SU1554609A1 |
| PNEUMATIC SOURCE OF SEISMIC SIGNALS | 1993 |
|
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| PNEUMATIC SOURCE OF SEISMIC SIGNALS | 1998 |
|
RU2154844C2 |
| GROUP SOURCE OF SEISMIC SIGNALS | 0 |
|
SU940101A1 |
| PNEUMATIC SOURCE OF SEISMIC SIGNALS | 1989 |
|
SU1596945A1 |
| PNEUMATIC SEISMIC SIGNAL SOURCE | 1985 |
|
SU1326046A1 |
