Multi-channel streamers

Tow cable 24-channel
Tow cable 24-channel

Increase the signal/noise ratio of the seismic records with a multi-channel coverage.

 

Our multi-channel streamers are dedicated to high and very high resolution seismics, with small diameter, short hydro spacings and group intervals.

 

The streamers are supplied neutrally buoyant, and can be ballasted to achieve the required towing depth, depending again of the emitted signal.

 

The MCsps is the new amplifier-filter deck unit of the multi-channel streamers. It interfaces the multi-channel streamer to any third party recording system, and provides power supply for the preamplifier in head of the section, and also provides high quality analogue frequency filters and selectable analogue gains.

  • 9 amplification gains can be selected from 0 dB to 16 dB
  • 4 high-pass filters for low cut-off frequency of the noise.

PASS ON TO MULTI-CHANNEL COVERAGE NOW !

SIG 16.6x8.57 has 6 hydrophones per group, group spacing 8 m, and 57 m long
IUEM University of Brest 6-channel SIG16 streamer

with SIG16 multi-channel streamers

and Delph Seismic acquisition system.


The spacing of the common depth points (CDP) depends on the hydrophones group-spacing of the array, the speed of the vessel, and the shooting rate.


Télécharger
SIG Multi-channel streamers.pdf
Document Adobe Acrobat 1.5 MB

The seismic signal of a particular point is identical for each channel, except for the noise which can thus be discriminated.

Exemple of the same profile from the west side of the island of Ouessant at about 200 km (courtesy of UBO Brest, team of JP Rehault), recorded with one channel, compared with a six-channel coverage. 

 


Multi-channel Delph Seismic analog acquisition

DELPH Seismic Analog Acquisition Unit is the latest topside generation for acquiring seismic data. Embedding all necessary inputs and outputs, it accurately digitizes single to multi-channel seismic signals. Thanks to a single Ethernet output, acquired data is logged on any laptop or workstation running DELPH Seismic Acquisition software. This is a new standard for high-resolution seismic surveys with simplified integration, maintenance and operation.

 

Master and slave triggering modes

• 24-bit digitizing accuracy

• RS-232 inputs, Ethernet output

• Available as rack and portable system

• DELPH Seismic Acquisition included

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The solution to digitize sparker, boomer, and any seismic analog signals. 4 to 24 seismic input channels. 24-bit analog to digital conversion. Rack mounted or mobile. Including Delph Seismic Acquisition Software, leader on the market.
Delph Seismic analog acquisition unit.pd
Document Adobe Acrobat 213.1 KB

Delph Seismic interpretation

Standalone DELPH Seismic Interpretation core software provides full sub-bottom data display and processing. Interpretation of layers is available through horizon picking and annotation tools.


and for more info http://delph.ixblue.com