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

Multichannel towed hydrophone streamers HRStreamer-24 and HRStreamer-48

Main features:
  • Registration in a wide frequency range
  • Acceleration-insensitive hydrophones
  • Groups or single receivers
  • Low-noise preamps
  • Optional pressure sensors
  • Eco-friendly and safe filler
Active section HRStreamer-24×1/1/75м
Active section HRStreamer-24×1/1/75м Active section HRStreamer-24×1/2/75м Active section HRStreamer-24×3/3.125/75м 2nd active section HRStreamer-24×1/1 2nd active section HRStreamer-24×1/2 2nd active section HRStreamer-24×4/3.125
Price: on request
+
The product was successfully added to basket

HRStreamer-24 and HRStreamer-48 (towed 24-/48-channel hydrophone steamers) are deployed in modern high-resolution offshore seismic operations. They are usually aimed at identifying potential geological hazards during drilling, construction of wind farms, pipeline routes, dredging and other tasks arising in the water area. 

The design of the streamers allows them to be used as surface or deep observation systems in 2D and 3D modifications.

When processing high-frequency data, it becomes especially important to describe the acquisition layout, i.e. to be capable to calculate the exact position of each receiving point. To improve the accuracy of the coordinates calculation, pressure sensors and inertial navigation system units can be optionally integrated into each streamer, which are used to determine the towing depth and its orientation in space.

Sophisticated design of the HRStreamer, quick-response acceleration-insensitive hydrophones, low-noise preamps with a frequency range of 10÷10 000 Hz and specially designed shielded load-carrying cables with longitudinal sealing ensure both the ease of use and the highest possible quality of the data obtained. The strong polyurethane shell of the active section and the cable shield remain flexible in all weather conditions, do not break down on the deck from UV light, are ideal for seawater and provide excellent maintainability. The neutral filler is safe for the environment, people and is allowed for transportation by any type of transport.

Package contents:
  • Seismic streamer
  • Tow cable
  • Tensioner with draw bar
  • Battery pack
  • Battery charger
  • Technical documentation
  • Low-noise power supply (optional)
  • Built-in pressure sensors and INS (optional)

Marine (SWS), freshwater (FWS) or deep-water (DWS) sparkers are used as high-frequency sources along with MultiJack energy sources. Data logging is provided by multi-channel high-frequency seismic stations. Specially designed SDW deck winches ensure the safety and convenience of performing descent lifting operations, towing and storage of streamers.

In addition to HRStreamer the following may be purchased:

To select the right configuration of the streamer or to draw up a technical specification for the purchase / rental of a complete equipment set for performing the survey, contact us in any way specified on the website. The data processing capabilities can be found here. We can also provide training for your staff in equipment and data processing skills as well as accompany or launch your project.


Streamer

Type

linear with pre-amplifiers

Number of channels

24 or 48

Geophone group interval

as agreed

Type of end connector

as agreed

Outer diameter

42 mm

Piezoelectric element

Operating frequency range

10 – 10 000 Hz

Sensitivity of piezoelectric element

180 dB

Capacitance of piezoelectric element

4000 pF

Maximum operating pressure

40 atm

Preamplifier

Type

low-noise asymmetric

Gain factor

6 dB

Current consumption per channel

10 mА

Output impedance

395 Ohm

Supply voltage

±12 V, bipolar

Maximum output level

±3.8 V

The root-mean-square voltage of the intrinsic

electrical noise, given by the output, in the operating frequency band

≤10 mkV

Operation conditions

Operating temperature range

-10 ÷ +70 °С

Storage temperature range

-40 ÷ +70 °С