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North Sea Exploration Opportunities

Improve data quality and fill in data gaps with discovery packages and integrated geophysical reprocessing services

After map with seismic blocks highlighted.

The vast library of WesternGeco multiclient data (left) is positioned to address the challenges in the North Sea production license blocks (right).

Whether you have submitted your applications for the available blocks in a UK licensing round or are rejuvenating your exploration portfolio, WesternGeco has the right geophysical products and services to help you make the best possible decision in the North Sea.

Our extensive multiclient library of 2D and 3D datasets help you fill in any data gaps, select an optimal 3D survey location, or reprocess to achieve a fit-for-purpose result.

We offer tailored reprocessing services using our advanced geophysical algorithms and workflows to address the complex geological and geophysical challenges in the North Sea.

WesternGeco has recently embarked in the revitalization of its 3D database and is undertaking broadband, prestack depth migration reprocessing, and reimaging projects over its Inner Moray Firth, Cavendish, and Ravenspurn datasets.

The processing sequences include source and receiver deghosting and full-wavefield inversion to leverage advances made in both signal processing and earth model building technology in recent years.

Accelerate decision making with discovery packages

To support your exploration ventures, WesternGeco have developed two discovery packages, which contain preloaded seismic data with tied and calibrated wells. Each package is a combination of publicly released 3D surveys and exclusive WesternGeco multiclient data. The data has been conditioned and merged to form one contiguous volume ready for framework regional interpretation and analysis.

Discrete seismic data packages, unprocessed.

Seamless merge of North Sea seismic data

Use the slider to compare 45 legacy public and WesternGeco multiclient 3D surveys in the Southern North Sea (before) with a seamless merge of North Sea datasets (after).

	Central North Sea Data Package	Southern North Sea Data Package
3D surveys	Central North Sea Data Package 45	South North Sea Data Package 12
Wells tied to seismic	Central North Sea Data Package 47+	South North Sea Data Package 48+
Total area	Central North Sea Data Package 14,414 km2	South North Sea Data Package 12,950 km2

Maximize the value of your 2D or 3D legacy data with reprocessing

With the constantly evolving developments in geophysical technology, reprocessing helps you extract the most value from your legacy 2D or 3D data.

We offer integrated reprocessing, imaging, and inversion workflows to address the issues associated with legacy datasets and the geological and geophysical challenges of the basin.

Improve seismic bandwidth with broadband processing

Our latest data conditioning workflows, including adaptive deghosting and 3D shallow-water multiple attenuation, give you improved resolution, reduced noise and multiple contamination, and better input for depth imaging and inversion.

Legacy 3D data before (left) and after (right) data adaptive deghosting and shallow-water demultiple. Signal-to-noise ratio is improved and low-frequency information is recovered. From Yanez et al., EAGE 2018.

Overburden details with simple initial models.

Overburden details (right) and captured by FWI, even with simple initial models (left). The comparison is demonstrated on a shallow depth slice (260 m) with velocity model overlaid on the seismic image. From Gupta et al., EAGE 2017.

Reduce interpretation uncertainty through imaging with multiples

Our approach to imaging with multiples eliminates crosstalk, which reduces your acquisition footprint and compensates for the lack of near angles recorded with typical towed-streamer geometries to provide you with reliable images for the interpretation and characterization of the shallow section.

Generate complex earth models with full-waveform inversion

With full waveform inversion (FWI), mature models, low frequencies, and long offsets are no longer required to produce high-resolution velocity models. Our FWI algorithms help you overcome your model-building challenges, greatly improving image quality especially in the shallow waters of the UK Continental Shelf, where complex overburden geology is common.

Obtain more reliable rock property inversions with least-squares migration in the image domain

Least-squares migration (LSM-i) uses point spread functions (PSFs) to correct for the spatial variation in illumination frequently observed in legacy datasets. After correction with LSM-i, seismic amplitudes are less affected by acquisition geometry and overburden geology and better reflect changes in subsurface properties. The result is a more reliable inversion to rock properties, ultimately reducing uncertainty in reservoir characterization.

Upcoming Licensing Rounds

The most relevant available data for bid rounds worldwide.

Get a competitive advantage for bid rounds in your prospect area

Gain access to the most relevant data available for bid rounds spanning the globe—from North America to the Middle East to Europe. Get the competitive advantage you need to select the best available prospects to meet the exploration goals of your operation.

Offshore Mozambique 6th Licensing Round

More than 110,000-km of broadband 2D and 15,000 km2 of 3D seismic data

Use broadband 2D seismic data to enhance prospectivity of frontier basins and plays offshore Mozambique.

Malaysia 2020 Licensing Round

19,000 km2 of 3D broadband seismic data

Enhance your prospectivity assessments in Block SB 2T offshore Sabah, Malaysia.

Angola Namibe Basin 2019 Licensing Round

54,000 km2 in the Namibe and Benguela Basins

Enter this frontier basin during its early stages of development.

Brazil Transfer of Rights Bid Round for Excess Volumes

High-definition 3D surveys for blocks in the Santos Basin

Enhance your prospectivity assessment of presalt fields in the Santos Basin.

Egypt Red Sea 2019 Bid Round

11,000 km of long-offset 2D broadband data

Discover an underexplored region with significant potential for hydrocarbon-bearing reservoirs.

Onshore Mexico 3.2 and 3.3 Bid Rounds

>25,000 km of 2D seismic data

Enhance your onshore Mexico prospectivity assessments.

Brazil 16th Bidding Round & 6th Presalt Auction

Five blocks in the prolific Santos and Campos Basins

Image post- and presalt targets to improve your prospectivity assessments and field development decisions.

West Wick 3D Reprocessing Project

884 km2 of 3D multiclient seismic data

Reprocessed legacy seismic surveys across the Moray Firth Basin in the UK North Sea.

Cavendish 3D Reprocessing Project

2,736 km2 of 3D multiclient seismic data

Targeted geophysical solutions for accurate seismic imaging in the North Sea.

Full-Waveform Inversion

High-resolution velocity models

Derive high-resolution velocity and anisotropy models from seismic data using a two-way wave equation.

Shallow Geohazard Assessment

Predrill shallow geohazard delineation

Identify, map, and delineate seafloor, shallow subsurface geologic, and constructed features.

Kirchhoff Prestack Depth and Time Migration

The most widely used migration algorithm in the industry

Accommodate a range of geological settings and acquisition geometries with flexible, amplitude-preserving implementation.

Seismic Inversion Services

Inverse modeling techniques and specialist reservoir knowledge

Address acoustic and elastic inversion, rock physics analysis, and reservoir property modeling.