Europe

West of Shetlands

Erlend Wild West and Northern Lights

Improved data feeds understanding on the UK/Norway margin

West of Shetland had long been considered a challenging frontier region, As it is mainly a deep-water environment with depths of more than 1,500 meters in places and has complex and less familiar geology.

Exploration in the West of Shetland began back in the 1970s, but only recently has it become the center of exploration and development on the UK Continental Shelf (UKCS). By 2025, the WoS is expected to contribute significant UKCS production, according to research from McKinsey.

Data Coverage & Projects

TGS has acquired 2D regional seismic lines in the northern Faroe-Shetland Basin since 1998 following up with large 3D surveys. The latest of these is the Erlend Wild West 3D, acquired in 2018 (EWW18), which was then merged with the Erlend West 3D survey, acquired in 2012, in a pre-stack depth, merged project. The highlight of this processing work is the use of Reflection Full Waveform Imaging (FWI) and interpreted geomodels of the different volcanic facies, linked to analogues in nearby wells to improve imaging integrity.

The combination of processing of new and reprocessing of vintage data for this survey area has realized a significant upshift (uplift) in imaging the visualization of the sub–basalt-influenced geological settings, including high velocity contrasts and volcanics. This will allow greater understanding of the plays in one of the most exciting E&P sectors regions of the UK continental shelf.


Erlend Wild West

  • 3,890 km2
  • Faroe-Shetland Basin
  • PSTM/PSDM

Northern Lights

  • 10,215 kn2
  • Faroe-Shetland Basin
  • PSTM

Rona Ridge

  • 2,174 kn2
  • West Shetland Basin
  • PSTM

Our Data

The combination of processing of new and reprocessing of vintage data for this survey area has realized a significant upshift (uplift) in imaging the visualization of the sub–basalt-influenced geological settings, including high velocity contrasts and volcanics. This will allow greater understanding of the plays in one of the most exciting E&P sectors regions of the UK continental shelf.

EWW image for Linkedin

Prospectivity in the West of Shetland is revealed in the final Pre-Stack Depth Migration (PSDM) imaging using high-resolution velocity modeling. With the support of our clients, TGS Imaging has worked hard to highlight the inter-basalt and sub-basalt potential. Inter-basalt low velocities - indicating sedimentary packages, as well as a shallow base cretaceous unconformity - can now be more accurately observed, overcoming the geological complexity of the area. Details in the shallow overburden such as Eocene sand-rich fans and associated injectites are also better imaged thanks to the sensitivity of the Reflection Full waveform inversion (FWI) model.

For further imaging content, see the TGS presentation by clicking on the link here


Move the Slider Left or Right
to Visualize the Images

Got it
EWW18_FWI_vel
After
EWW18_FWI_tomo
Before

The comparison slider above show a before-and-after FWI-corrected velocity field. The sand injectite level in the middle shows slightly higher velocity and details that help the below imaging

Well Data Products

Our solution gives geoscientists the subsurface depth and breadth of knowledge to understand drilling risks, reduce uncertainty, and improve well performance.​ Fast and easy access to TGS' vast library of well data is available through R360, our unique subsurface intelligence portal.

Interpretation

Basin-wide studies combine TGS’ unparalleled volumes of well and seismic data with geological expertise, developed over 8 years, to provide insights that accelerate the exploration-cycle and reduce risk. Available interpretation products West of Shetlands include:


Contact Us

Get in contact with our Europe team to ask more about how we can help you with your subsurface intelligence needs.

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