Equipment & Software for Geophysical Surveys: Design, Manufacture, Support, Supply

Energy sources Jack

Main features:
  • High charging rate
  • Capability to control power consumption
  • Remote control unit
  • Portability
JACK-500
JACK-500 JACK1200 JACK-2500HP Special edition JackPad
Price: on request
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Jack energy sources ensure the operation of sparker and electrodynamic sources used in geophysical surveys in boreholes by methods of crosshole seismic testing (CST), vertical seismic profiling (VSP), vertical seismoacoustic profiling (VSaP) and others.

Jack design deploys a reliable thyristor key, that enables obtaining a really short high-voltage electric pulse. The energy source is operated from the ас system with 110 / 220 V voltage.

In Jack-500 and Jack-1200 models, pulse chargers provide an average charge rate of 500 J/s. Jack‑2500HP version is equipped with a fast charger that is capable to regulate the charging speed (500 / 1000 / 1500 J/s). Thus, all Jack energy sources allow operation with compact portable generators (with power of 0,8 kW and more).

Jack energy sources allow one to operate with three triggering modes:
  • Triggering from an external device (seismic recording system, synchronization system, etc.)
  • A series with a given number of pulses and a period of their repetition
  • Infinite series of pulses with a given period

Jack energy sources can be equipped with a portable remote control unit JackPad.

Compact dimensions, impact-resistant leakproof casing, light weight, well-conceived and intuitive user interface, remote control unit, allow to consider Jack energy sources the most modern and truly mobile devices among all the alternatives available on the market.

The standard set of Jack energy source consists of:
  • Jack Unit
  • Sync connector (2 pc.)
  • Power cable
  • Universal switching module for connecting the source
  • Documentation Kit
In addition to Jack energy sources the following items can be purchased:

As may be agreed, it is possible to manufacture a energy source and a source of the required power and configuration. For the correct preparation of technical design specification, please contact us using any method indicated on the website.

Example of the сrosshole seismic testing field data and its spectral composition
Example of the сrosshole seismic testing field data and its spectral composition (blue — for the entire wave pattern, green — for the first break, brown — for noise before the target waves arrival).
Data obtained with borehole sparker Pulse, energy source Jack-2500HP and hydrophone array WellStreamer.
Crosshole seismic testing field data obtained with borehole sparker Pulse, energy source Jack-2500HP and hydrophone array WellStreamer
Crosshole seismic testing field data obtained with borehole sparker Pulse, energy source Jack-2500HP and hydrophone array WellStreamer.
The distance between the central and lateral wells — 30 m.

For performance of high-resolution marine seismic operations, the specialized energy sources MultiJack are available.

500 1200 2500HP
Operating voltage, kV 2-4
Discharger type thyristor
Trigger mode external/repetitive/manual
Operating energy, J 50-500 300-1200 300-2500
Charge rate, J/s 500 500 1500
Minimum period of operation at the minimum pulse energy, s 0.4 1.4 0.6
Minimum period of operation at the maximum pulse energy, s 1.2 2.7 1.9
Power requirements 110 or 220 V, 50 HZ
Power consumption, kW 1 1 1/2/3
Overall dimensions, mm 490×370×230 540×410×270 630×500×300
Weight, kg 18 22 34
JackPad
Function
remote control of Jack
Maximum length of communication line, m 100
Overall dimensions, mm
210×165×90
Weight, kg
1

The manufacturer reserves the right to make changes in the design of devices that do not significantly alter the functional characteristics of the product.