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

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Towed HRStreamer for high resolution and ultra-high resolution marine seismic

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on request
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Main features:
  • Suitable for all types of HR/UHR surveys
  • Supports optimal towing depth, slanted cable and deep tow acquisitions
  • High sensitive hydrophones, protected from acceleration noise
  • AVO friendly
  • Custom configurations available

HRStreamer is a range of high sensitive single and multichannel marine towed streamers, specifically designed for high resolution and ultra-high resolution engineering marine seismic applications. 

We have developed a unique type of single channel streamers with adjustable group length. Typically, the group length of single channel marine streamers is fixed and designed for operations in specific water depth range - the deeper water depth, the longer group is used to increase signal level. Long groups can hardly be used for shallow water acquisitions due to their directivity pattern, which results in filtering out high frequency energy.  We were able to overcome this issue by placing up to 4 groups with variable length, making the HRStreamer a universal solution for acquisitions in wide water depth ranges. Combining all groups together results in an equivalent single group length to increase signal-to-noise ratio.

Multichannel HRStreamer is an easy to operate hydrophone array with up to 48 channels. Various group intervals are available for manufacture, such as standard spacings of 1 m, 2 m, 3.125 m, 6.25 m or popular these days combination of mixed hydrophone spacing in one streamer. Mixed hydrophone spacing of 1 and 2 meters provides good trade-off between streamer length and trace density in the upper part of the section.

All hydrophones are protected from acceleration to ensure the lowest noise level, resulting in high quality seismic images.

HRStreamer is suited for all types of modern high resolution acquisition techniques, including conventional surveys with optimal towing depth and slanted cable registration. Maximum allowable working pressure of 40 atm also allows to use HRStreamer for deep towed marine acquisition surveys. High accuracy depth control sensors, distributed along the receiver array provide exact measurements of streamer towing depth in real time to meet your acquisition expectations.

Additionally, HRStreamer may be manufactured with single hydrophone per group to provide uniform directivity pattern of each receiver group. In combination with non-directional source, such as single-tip sparker they will provide AVO friendly high resolution marine seismic setup.

In addition to HRStreamer the following items can be purchased:
Cable system
Type
linear with preamplifiers
Number of channels
1-48
Interval between channels
as agreed
End connector type as agreed
External diameter
from 32 mm
Piezoelectric element
Operating frequency band
10 – 10 000 Hz
Sensitivity
180 ± 30 uV/Pa
Capacity
4000 pF
Maximum working pressure
40 atm
Sensitivity to accelerations
protected against acceleration
Preamplifier
Type
low-noise dissymmetric
Gain
6 ± 0,5 dB
Current consumption per channel
10 ± 1mA
Output resistance
395 Ohm
Power supply voltage
±12 V, bipolar
Maximum output level
±3,8 V
Root-mean-square voltage of the intrinsic electrical noise,
given by output, in the operating frequency band
less than 10 μV
Usage conditions
Operating temperature range
-10 .. +70 °С
Storage temperature range
-40 .. +70 °С

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$20,210
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  • High charge rate

  • Flip-flop, simultaneous source, code sequences and multilevel sources support

  • High power

  • Easy handling

Variant

Price:

$6,620
Item ID: ws__f100

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Are designed for induction of high-frequency seismic pulses during seismic surveys on water areas (FWS/SWS).

  • Stable impulse

  • Replaceable electrode groups

  • Adjustable depth

  • Designated cable

  • Stainless steel frame

Variant

Price:

$9,880
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  • Capability of grouping

  • High pulse frequency

  • Operation in sea and fresh water

  • Stainless steel frame

  • Demountable construction

Variant

Price:

$14,630
Item ID:

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Variant

Price:

on request
Item ID: radexpro__Start

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Price:

€3,000
Item ID: zondst2d

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Price:

€2,800
Item ID: zondst3d

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