WesternGeco

WesternGeco is a geophysical services company and Schlumberger business segment serving the petroleum exploration and reservoir-management industries. Its activities have included the acquisition, processing, interpretation, and management of subsurface geophysical data used to identify prospective hydrocarbon-bearing structures and understand producing reservoirs. The brand has historically operated across marine, land, and transition-zone environments, with capabilities spanning three-dimensional seismic surveys, time-lapse or four-dimensional seismic monitoring, multicomponent seismic work, electromagnetic surveys, geophysical acquisition, data processing, and reservoir seismic services. The business was created in 2000 through the combination of Western Geophysical and Geco-Prakla, two established seismic contractors. Western Geophysical traced its origins to 1933, while Geco-Prakla was associated with Schlumberger before the combination. Schlumberger negotiated the transaction with Baker Hughes, which at the time owned Western Geophysical, and obtained a 70 percent interest in the resulting joint venture. This structure brought together complementary seismic acquisition and processing capabilities under the WesternGeco name while connecting the business to Schlumberger's wider oilfield-services portfolio. WesternGeco's work has traditionally supported exploration decisions, field appraisal, reservoir characterization, development planning, and production monitoring. Its service model combined physical data acquisition—using land, marine, or transition-zone survey systems—with increasingly sophisticated processing and interpretation. Seismic information can be used to create images of subsurface geology, track changes in reservoirs over time, and improve decisions about drilling locations and field development. Electromagnetic and multicomponent techniques extended the brand's offering beyond conventional seismic methods. In May 2006, Schlumberger acquired Baker Hughes' remaining 30 percent interest in WesternGeco for a reported $2.4 billion, making the business wholly owned by Schlumberger. The transaction strengthened Schlumberger's control over a major seismic-services platform and integrated WesternGeco more closely into its exploration and production technology portfolio. The business later changed direction as the seismic acquisition market weakened. In January 2018, Schlumberger announced that it would exit seismic data acquisition activities onshore and offshore, while retaining multiclient data processing and interpretation operations. The announcement followed financial distress and bankruptcy filings among several competitors in the seismic-services sector. In August 2018, Schlumberger sold the seismic data acquisition business to Shearwater GeoServices. Consequently, WesternGeco's continuing role became more concentrated on seismic data libraries, processing, interpretation, and related reservoir-imaging services rather than owning and operating the full former acquisition fleet. WesternGeco was historically headquartered at Schlumberger House, a 124,000-square-foot facility on the grounds of London Gatwick Airport in Crawley, West Sussex, which also housed European and African offices. The building was vacated in 2022, and remaining operations moved to the nearby Manor Royal industrial area. The brand is therefore best understood not as an independent publicly traded company, but as a specialized Schlumberger/SLB geophysical-services business whose scope has evolved from broad seismic acquisition toward data-centric subsurface imaging and interpretation.

WesternGeco emerged from the 2000 merger of Western Geophysical and Geco-Prakla. The combination united two major seismic contractors and created a business capable of supplying geophysical acquisition, processing, and interpretation services to the petroleum industry. Western Geophysical had been founded in 1933, while Geco-Prakla was linked to Schlumberger's pre-existing geophysical operations. At formation, Schlumberger paid Baker Hughes, then the owner of Western Geophysical, for a 70 percent interest in the joint venture. The resulting organization operated under the WesternGeco name and became one of the principal geophysical platforms associated with the global oilfield-services sector. The company's technical scope covered land, marine, and transition-zone environments. It deployed seismic acquisition systems and processing capabilities to produce subsurface images for exploration and field development. Its portfolio included three-dimensional seismic surveys, time-lapse monitoring, multicomponent surveys, electromagnetic methods, and reservoir-focused seismic services. These activities supported prospect delineation, reservoir characterization, drilling decisions, and monitoring of changes in producing fields. WesternGeco also developed and maintained multiclient data programs, in which geophysical surveys could be processed and licensed to multiple industry customers. In May 2006, Schlumberger bought Baker Hughes' remaining 30 percent interest for a reported $2.4 billion. WesternGeco thereby became a wholly owned Schlumberger subsidiary or business segment rather than a jointly controlled venture. The change gave Schlumberger direct control over the brand's strategy, technology portfolio, assets, and customer relationships. The seismic acquisition market subsequently faced a prolonged downturn. Competitors encountered severe financial pressure, and several seismic-services companies entered bankruptcy proceedings. In January 2018, Schlumberger chief executive Paal Kibsgaard announced a strategic withdrawal from seismic data acquisition, covering both onshore and offshore operations. Schlumberger stated that it would retain multiclient data processing and interpretation capabilities, preserving the data-centric parts of the business while leaving the capital-intensive acquisition market. In August 2018, the seismic data acquisition business was sold to Shearwater GeoServices. This transaction materially narrowed WesternGeco's historical operating scope. Rather than continuing as a fully integrated owner and operator of seismic acquisition fleets, the remaining brand became more closely associated with geophysical data, processing, interpretation, and reservoir-imaging activities within Schlumberger. The transition illustrates the broader movement in the seismic sector from asset-heavy acquisition toward specialized data, software, and interpretation services. WesternGeco's former headquarters was Schlumberger House, a 124,000-square-foot facility located on the grounds of London Gatwick Airport in Crawley, West Sussex. The building also housed the company's European and African offices. It was vacated in 2022, after which remaining operations moved to the nearby Manor Royal industrial park. WesternGeco is currently best characterized as an SLB/Schlumberger geophysical-services brand rather than as an autonomous listed corporation.

1. 2022Former Gatwick-area headquarters vacated

   Schlumberger House was vacated and remaining operations moved to the nearby Manor Royal industrial park.

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2. 2018Schlumberger exits seismic acquisition

   Schlumberger announced its withdrawal from onshore and offshore seismic data acquisition while retaining multiclient processing and interpretation.

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3. 2018Acquisition business sold to Shearwater GeoServices

   The seismic data acquisition business was sold to Shearwater GeoServices.

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4. 2006Schlumberger acquires remaining stake

   Schlumberger bought Baker Hughes' remaining 30 percent interest, making WesternGeco wholly owned by Schlumberger.

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5. 2000WesternGeco created through merger

   Western Geophysical and Geco-Prakla were combined in a joint venture, creating WesternGeco with Schlumberger holding a 70 percent interest and Baker Hughes holding the balance.

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6. 1933Western Geophysical founded

   Western Geophysical, one of the predecessor businesses of WesternGeco, was established.

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A specialized, technology-led geophysical-services brand within Schlumberger/SLB, positioned around subsurface imaging, seismic data acquisition legacy capabilities, multiclient data, and reservoir interpretation for oil and gas exploration and development.

• 3D seismic surveysSeismic imaging

  Three-dimensional seismic surveys generate detailed subsurface images used to delineate geological prospects, assess structural complexity, and support exploration and development planning. WesternGeco's historical capabilities covered survey acquisition and the subsequent processing and interpretation required to convert field measurements into usable geological and geophysical models.

• Time-lapse seismicReservoir monitoring

  Time-lapse, or 4D, seismic compares surveys acquired at different stages of a field's life. The resulting changes can help operators monitor fluid movement, pressure effects, and evolving reservoir conditions. This type of service supports production optimization and reservoir-management decisions rather than only initial prospect identification.

• Multicomponent seismicSeismic imaging

  Multicomponent surveys record and analyze multiple seismic wave modes to provide additional information about subsurface formations. The approach can improve characterization of complex geology and complement conventional seismic interpretation in exploration and reservoir studies.

• Electromagnetic surveysGeophysical surveying

  Electromagnetic geophysical surveys provide subsurface information based on variations in electrical properties. Used alongside seismic methods, they can contribute to prospect evaluation and reservoir characterization by offering a different physical measure of geological and fluid-related conditions.

• Multiclient seismic dataGeophysical data

  Multiclient programs acquire, process, and interpret regional geophysical data for licensing to multiple customers. This model allows exploration companies to access established seismic coverage without independently commissioning every survey and became an important retained activity after Schlumberger exited direct seismic acquisition.

• Seismic processing and interpretationGeophysical software and services

  Processing and interpretation services transform raw geophysical measurements into images and subsurface models. The work can include data conditioning, imaging, interpretation, and reservoir-focused analysis for exploration, appraisal, development, and production-monitoring decisions.

• 2018Exit from onshore and offshore seismic acquisitionStrategy

  The seismic-services market was under pressure, and several competitors had filed for bankruptcy protection or otherwise experienced severe financial distress.

  What changed. Schlumberger announced that it would leave seismic data acquisition while retaining multiclient data processing and interpretation activities.

  Aftermath. The acquisition business was subsequently sold to Shearwater GeoServices, leaving WesternGeco more focused on data, processing, interpretation, and reservoir-imaging work.

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• 2006Schlumberger takes full ownership of WesternGecoM&A

  WesternGeco had been formed as a joint venture in which Schlumberger held 70 percent and Baker Hughes held 30 percent.

  What changed. Schlumberger acquired Baker Hughes' remaining interest and converted WesternGeco into a wholly owned business.

  Aftermath. WesternGeco became more directly integrated into Schlumberger's global oilfield-services portfolio.

  Reported acquisition consideration. $2.4 billion (2006)

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• 2018Schlumberger announces exit from seismic data acquisition

  Schlumberger announced that it would withdraw from onshore and offshore seismic data acquisition while retaining multiclient data processing and interpretation activities. The decision came amid difficult market conditions and financial distress among seismic-services competitors.

  Other
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• 2018WesternGeco seismic acquisition business sold to Shearwater GeoServices

  Schlumberger sold WesternGeco's seismic data acquisition business to Shearwater GeoServices, implementing the previously announced withdrawal from onshore and offshore acquisition.

  M&A
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• WesternGeco patent litigation reaches the United States Supreme Court

  WesternGeco was involved in patent litigation concerning seismic technology. The dispute generated proceedings in the United States Supreme Court.

  Lawsuit
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1. WesternGeco