The OWS (OYO Wappa Source) is an innovative downhole seismic source suitable for a seismic survey between boreholes (mainly, seismic tomography). Its non-explosive seismic source makes it possible to carry out a survey with almost no damage to borehole walls, and does not require the bothersome legal application procedures as in the case of using the explosives.
High-speed impact rate with the approximate interval of 10 sec has been achieved. Once the device is lowered down into a borehole, the system can extend the seismic excitation consecutively without lifting it up again, which increases user’s work efficiency. Also, it is very user-friendly system owing to its simple structure and operation.
■ High transmission efficiency with low power consumption
■ Excitation with almost no damage to borehole walls
■ Excellent repeatability of signal and trigger
■ Simple structure with easy maintenance
|Dimensions||O.D. φ50mm, Length 2400 mm|
|Sensor for trigger signal||Miniature geophone (built-in)|
|Working environment||Temperature||Lower than 60 ℃|
|Pressure||In water under the pressure lower than 10 MPa|
|Dimensions||295 (W)×140(H)×450(D) (mm)|
|Weight||12 kg (including the power supply section)|
|Seismic excitation interval||About 10 sec|
|Supply voltage||DC 110V (Voltage initially set)|