Description
HRStreamer is a high sensitive marine towed streamer, specifically designed for high resolution and ultra-high resolution engineering marine seismic surveys.
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. All hydrophones are protected from acceleration to ensure the lowest noise level.
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.
- High-frequency seismic station
- Deck winch
- Towed buoys with positioning system
- Paravan for 3D system
- Towed sparkers and boomers with MultiJack energy sources
- Software for quality control and data processing
Specification
| 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 |
Processing Software
RadExPro
ZondST2d — 2D seismotomography interpretation (refracted waves)
ZondST3d — 3D seismotomography interpretation (refracted waves)
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