This paper present the first ever large scale commercial hexasource wide tow marine acquisition survey. The survey was acquired with a source-over-cable setup, utilizing a streamer vessel in the front, trailed by a source vessel midway down the streamers, towing the 6 wide-tow small compact sources. This setup allows for dense even source-line spacing of ~55m as well as providing split-spread full azimuth seismic shot gathers. The resulting data has a native spatial sampling of only 5 × 6.25m. Compared to conventional seismic data, the fold exceeds an order of magnitude higher, despite maintaining a vessel sail-line separation of approximately 350m. Initial brute stack migrations of the shallow part of the new data already exceeds the image quality of any of the legacy datasets in this area. Further processing, including deblending and demultiple will enhance the quality deeper down and also improve the signal-to-noise ratio.


Article metrics loading...

Loading full text...

Full text loading...


  1. Dhelie, P.E., Danielsen, V., Lie, J.E., Kjelsrud Evensen, A., Wright, A., Salaun, N., Rivault, J.L., Siliqi, R., Grubb, C., Vinje, V., Camerer, A.
    [2018a] Improving seismic imaging in the Barents Sea by source-over-cable acquisition, 88th SEG annual Meeting, Extended Abstracts
    [Google Scholar]
  2. Dhelie, P.E., Danielsen, V., Elboth, T., Shen, H.
    , [2018b] Hexasource: Wide tow-dithered six-source marine acquisition in the Barents Sea, 88th SEG annual Meeting, Extended Abstracts
    [Google Scholar]
  3. LieJ.E., Danielsen, V., DhelieP.E., NilsenE.H. and JørstadA.
    [2016] Benchmarking of seismic broadband acquisition and processing: A unique comparison of technologies on the Edvard Grieg and the Johan Sverdrup fields, offshore Norway. SEG Technical Program Expanded Abstracts2016: pp. 5109–5112.
    [Google Scholar]
  4. Vinje, V., Lie, J.E., Danielsen, V., Dhelie, P.E., Siliqi, R., Nilsen, C-I., Hicks, E. and Camerer, A.
    , [2017] Shooting over the streamer spread. First Break, Vol 35, no 6, pp 97–104
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error