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www.tgs.com Imaging Well Data Seismic Data Reservoir
www.tgs.com
Imaging
Well Data
Seismic Data
Reservoir
TGS is a registered Company in Norway and is publicly traded on the Oslo Stock Exchange under the symbol TGS with financial headquarters in Asker, Norway. The Company is led by CEO Robert Hobbs and has employees based in cities around the globe. Main offices are located in Asker, Calgary, Stavanger, Houston, London, Perth and Rio de Janeiro.
TGS provides multi-client geoscience data to oil and gas Exploration and Production companies worldwide. In addition to extensive global geophysical and geological data libraries that include multi-client seismic data, magnetic and gravity data, digital well logs, production data and directional surveys, TGS also offers advanced processing and imaging services, interpretation products, permanent reservoir monitoring and data integration solutions.
TGS
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TGS and NOPEC YesterdayFormer U.S. oil company executives organized TGS Geophysical Company in 1981 in Houston, Texas and built what became the dominant 2D multi-client data library in the Gulf of Mexico. Former Norwegian oil company executives organized NOPEC International (NOPEC) in 1981 in Oslo, Norway and started the first of many highly successful multi-client surveys with a Central Graben regional project in the North Sea. In 1997 NOPEC became publicly traded on the Oslo Stock Exchange.
TGS TodayRecognizing a need for high quality, regional, multi-client seismic surveys and a win-win opportunity for investors, customers and employees, the Houston and Oslo-based companies merged in June 1998, forming TGS-NOPEC Geophysical Company (TGS). Since that time, TGS has set the standard for multi-client geoscientific data acquired around the world. TGS has a firm commitment to high quality products and exemplary customer service. A staff of experienced professionals ensures TGS delivers on its commitments.
Global Strength and ExperienceTGS has acquired 2D and 3D multi-client seismic data in North and South America, Europe, Africa, Asia, Australia and the Arctic. The data acquired through a multi-client project is owned by TGS. The data is then licensed to multiple customers through a non-transferable data license. The concept of multi-client data is widely applied throughout most hydrocarbon exploration and production regions in the world. It is appreciated by the oil and gas companies as a cost-effective and critical tool, used to evaluate hydrocarbon potential and minimize risk in both mature and frontier exploration areas.
Using the multi-client model, TGS plans the seismic surveys, coordinates government regulations and solicits funding from the oil industry. Upon achieving an acceptable level of pre-funding from industry as well as governmental and land owner approval, TGS then finances and carries out the survey. The resulting data is provided to the initial pre-funding parties but is also licensed to additional clients interested in the area. This concept provides benefits for all parties involved:
The oil companies get access to modern, high-quality geophysical data at a lower cost.Local governments benefit from the availability of high quality data which attracts competitive interest in the area.Over a period of time, TGS receives a higher return than acquiring the data on a traditional contract basis where the oil company would ultimately own the data.
The location of TGS’ multi-client data can be viewed through the data zone map on the Company’s website at www.tgs.com. Data from marine, land, ocean bottom cable (OBC), transition zone and wide azimuth (WAZ) acquisition methods are processed by TGS’ geophysicists who specialize in 2D and 3D data with products and services including time, depth and anisotropic imaging.
TGS has the industry’s largest collection of online well data in areas within North America, South America, Europe, Russia and Africa. TGS offers interpretation studies and services that integrate seismic, well logs, biostratigraphic data, core data and other geoscientific data to create basin wide regional frameworks. These geological products are also provided on a multi-client basis through subscription basis or data license.
ValuesThe Company is responsible to its customers through the quality products and exemplary service that differentiates TGS from its competitors. Honesty, integrity and fairness form the cornerstones of the Company’s relationships. TGS is responsible to the communities and environment in which its employees live and work. Finally, TGS is responsible to its shareholders and believes that the business must make a profit. Growth is fundamental to TGS’ success.
Through the years, TGS has developed extensive worldwide experience with a variety of geophysical data acquisition methods and first-class data processing technologies. The Company also acquires potential field data which include gravity and magnetic data. The detailed processing and interpretation of both seismic and potential field data are keys to identifying regional geologic trends.
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Multi-client Seismic Data TGS is a major provider of global multi-client seismic data and has been active in this arena for over 30 years. Throughout this period the Company has established a vast database and gained experience from exploration areas worldwide.
Excellent project development is at the core of TGS’ multi-client success. Teams of skilled TGS project specialists are constantly evaluating areas for new project ideas. TGS places high emphasis on a thorough geological understanding and motivation behind all multi-client projects. When planning new seismic surveys, TGS makes use of all knowledge and experience within its staff of highly qualified and experienced geoscientists. All available geological and geophysical data, including seismic, gravity and magnetic data are used in order to optimize the design and parameters for the various survey areas and objectives. In addition, the geology and the hydrocarbon potential of the planned survey are key. Interaction with the local governments and ministries, communication and collaboration with oil company representatives and contact with geoscientific specialists to address the imaging challenges of the area are all critical components of survey planning. This diligent effort ensures TGS multi-client projects are acquired in the best locations and meet the geoscientific and geographic needs of the industry.
The Company’s global seismic data library is located in key mature, emerging and frontier offshore and onshore hydrocarbon basins around the world. More than 1,400 exploration companies, including all majors and super-majors, are among the Company’s clients. TGS offers the most current data libraries that are acquired and imaged with the latest technologies to provide strong geoscience insight.
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al TGS Data Library2D Seismic 2,475,795 km3D Seismic 312,324 km2
Wide Azimuth (WAZ) 43,271 km2
Shipborne Gravity Magnetic 1,129,170 km / 55,680 km2
Airborne Gravity Magnetic 1,419,126 kmMultibeam Sea Seep 402,286 km2 Digital Well Logs 6,703,024
Offshore SeismicThe Company does not own any seismic vessels or crews but instead contracts the data acquisition from existing capacity available in the market. This asset-light business model allows TGS to focus on the creation of multi-client data, and the Company’s vendor neutral status provides the flexibility to use the most current and applicable technologies. TGS leases from the world’s premier seismic services companies, allowing TGS to employ the smartest mix of technologies in the acquisition of each project, be it 3D narrow or WAZ, OBC or long-offset 2D. The extensive set of seismic data processing tools and depth imaging capabilities developed by TGS is a driving factor in making the Company one of the premier multi-client seismic data companies in the industry. TGS also provides seismic data processing on a contract basis for individual customers.
Onshore Seismic TGS and its wholly-owned subsidiary Arcis Seismic Solutions offer multi-client onshore seismic data across North America. The Company applies the same high standards of quality and customer service with onshore seismic as with its suite of geoscience data products around the world.
Effective planning is critical to the onshore acquisition process. TGS considers all the needs of the client as well as all of the operational, environmental and regulatory factors involved before any project is commenced. TGS supervises and collaborates with chosen seismic contractors ensuring quality operations in all aspects of the project and where applicable, TGS’ internal unique capabilities are offered to the clients for both multi-client and proprietary services. These services include GIS mapping and government approvals, survey design, line clearing and enhanced data quality control with in-field professional supervision.
TGS’ advanced HSE system guarantees it is operating in a safe work environment for the health and safety of all workers and the environment.
Potential Field ServicesIn addition to acquiring potential field data for its own library, TGS offers potential field data acquisition, processing and interpretation services to the oil, gas and mining industries. Gravity and other potential field data provide early, inexpensive access to information about the exploration potential of a region.
Potential Field Services Include:Unmanned Aerial Vehicle (UAV) acquisitionShipborne gravity and magnetic data acquisitionGravity and magnetic data processingGravity and magnetic data interpretation
Well Logs - 6,759,145
2D Seismic Data - 2,497,220 km
Airborne Grav/Mag - 1,401,667 km
3D Seismic Data - 292,339 km2
Multibeam Data - 402,208 km2
TGS’ vast library of digital well data, partnered with in-house interpretive expertise, enables the Company to create regional reports and models of basins around the globe. This information provides interpreters the insight they need to develop oil and gas exploration prospects. Interpretive products range from depositional systems models to comprehensive prospectivity reports and geoscience consulting services. TGS’ quality-controlled well data library provides easily accessible data that is cleaned up and interpretation-ready. Well data includes raster and digital well logs, production data, formation tops and directional surveys, all available for download online. The Company’s experienced geoscientists maintain TGS’ high standards for quality-control and customer service in the development of all interpretive and well data products.Ge
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ical Well Data Library
Built by customer demand, the vast well log library has grown into a worldwide well data resource. Depth calibrated smartRASTER® well logs are only one component of the well data library. TGS has expanded its well data library to also include US production data, directional surveys, velocity data and well header files. The collection of borehole data around the world continues to grow. Each new product added to the offering requires the same high standards of quality and customer service that are the hallmarks of TGS data.
Well LogsTGS has the industry’s largest collection of digital well logs with over 6.7 million logs worldwide. Data formats range from the depth-calibrated smartRASTER® to the comprehensive, LAS Plus and Workstation Ready curve suites. LAS coverage has grown to include over 950,000 complete curve suites available in North America.
The Company’s worldwide coverage has expanded to include well logs from 32 countries around the globe and borehole data from deep water regions in the Atlantic and Mediterranean. Each borehole data type undergoes rigorous quality controls, backed by a team of customer support specialists.
Directional Survey PlusComplementary to well logs, TGS has a collection of deviated well surveys that have been researched and reprocessed into Directional Survey Plus data. More than basic directional survey coordinates, Directional Survey Plus data provide the interpreter with a quality-assured, spatially accurate well path. These data provide for successful integration of all data types available on a well because all wellbores are properly recognized.
Production and Scout DataTGS’ nationwide US oil and gas well production database provides flexibility, service and ease of use that is unique to the industry. The companion scout database includes all data obtained just prior to production, from the drilling to completion phase of a well. Production and scout databases include TGS’ custom LONGBOW™ visualization tool. Built with customers in mind, LONGBOW™ is a query and export tool used to browse, visualize and export data from the nationwide database. This interface allows users to cre-ate data maps and charts based on their specific needs and export into the format required for most industry applications.
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l Online AccessTGS’ well data library is available for download online. LOG-LINE Plus!® is the Company’s online store where clients can easily search and download well log data types, Directional Survey Plus and snapshots of production data. The Company continues to develop this tool based on customer feedback.
Data/Application IntegrationTGS offers an innovative approach to helping clients connect many types of well data to multiple geoscience applications. The ENVOY integration platform enables geoscientists to move data directly into their geological and geophysical (G&G) applications and databases. ENVOY addresses the challenges of managing and accessing the ever-increasing quantities of scattered data that exists within a typical energy company’s geoscience organization.
Interpretation Products and ServicesTGS’ vast well data library, paired with its high quality seismic data library, provide a natural course for the Company to build a worldwide library of interpretation products. In-house senior geoscientists use these high quality data to interpret regional structure and stratigraphic relationships, create basin frameworks, select formation tops and develop petrophysical reports for areas around the world.
Ranging from complete hydrocarbon prospectivity reports to velocity volumes, the TGS library has multi-client products worldwide to supplement data resources and provide regional frameworks for customer prospects.
Facies Map BrowserTGS delivers regional sequence stratigraphic studies via its unique visualization interface, the Facies Map Browser (FMB). This provides users with the capability to interrogate and integrate the data for a greater depth of understanding.
The FMB is a dynamic visualization interface for reviewing depositional system models. The models are derived from a comprehensive set of interpreted well data tied to reference seismic data. It provides a robust framework for play modeling and exploration work, and fast tracks understanding of the basin development, thereby shortening exploration cycle time. FMB is available for offshore Northwest Europe (UK, Norway, Ireland), Santos, Campos and Espirito Santo Basins in Brazil, Browse and Bonaparte Basins in Australia, offshore Newfoundland and onshore United States. Additional regions are under development.
In addition to FMB stratigraphic reports, TGS also has structural, lithologic, and play concept interpretations in many regions worldwide.
Petrophysical ReportsTGS’ team of petrophysicists provide a range of products essential for prospect evaluation, ranging from generating high quality wireline log data sets to computer processed interpretation. TGS also has a range of multi-client petrophysical atlases based on detailed petrophysical analysis of numerous wells covering a particular area.
Formation TopsUsing the industry’s largest digital well log database, TGS geoscientists have developed a set of well log formation tops to help with basin evaluation and hydrocarbon exploration. TGS’ geoscientists have constructed cross-sections and correlated wells to generate a consistent and accurate set of tops for major basins across North America.
Consulting ServicesTGS offers consultancy services in geology, geophysics and petrophysics on a proprietary basis. Support ranges from license round application and prospect generation to operational petrophysics and play fairway analysis. The Company’s in-house geosciences experts can also provide thermal, basin and diagenetic modeling.
OSMOSM
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ing TGS delivers advanced, high performance imaging services and
software solutions for processing proprietary surveys in addition to processing its own multi-client library. TGS is one of the premier providers of seismic data processing and time/depth imaging solutions. TGS’ research and development professionals are continually developing new technology and workflows which result in more reliable earth images. TGS processes 2D, 3D and 4D data, with products and services including:
Depth and time imagingMarine, land (both P wave and multicomponent), Ocean Bottom Cable (OBC), Ocean Bottom Node (OBN) and transition zone processingWide Azimuth (WAZ) data processingAnisotropic imaging
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Time ImagingTGS has the capability of performing advanced signal (time) processing for data conditioning as well as interactive data analysis and integrity validation (QC). Offerings include industry leading noise attenuation algorithms and 3D True Azimuth Multiple Attenuation (TAME). To complement this, TGS has developed specialized processing sequences for Broadband Processing (Clari-Fi) and deep data enhancement that improves both bandwidth and the interpretability of both newly acquired and vintage conventional horizontal streamer data.
In addition, tools are available for qualitative and quantitative gather conditioning and AVO analysis for both time and depth gathers. TGS also developed the PRIMA™ software platform and uses it internally in the processing workflow. Many oil companies have licensed PRIMA™ to further evaluate data for exploration.
Time Imaging Key Capabilities:Advanced signal (time) processing for data conditioningInteractive data analysis and integrity validation (QC)Gather conditioning and AVO analysis toolsNoise removal techniques for swell noise, random noise, ship noise, linear noiseMultiple attenuation techniques such as true azimuth 3D SRME, wavefield extrapolation, moveout based approach using linear transforms, high-resolution Radon, Tau-P, Diffracted Multiple Attenuation, post migration multiple removalSpecialized sequences for enhancing conventional or vintage data
Deep data enhancement sequence (sub-basalt, deep basins)Broadband Clari-Fi processing
Data regularization and interpolation techniques
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ing Land Data Imaging
With the acquisition of Arcis Seismic Solutions, TGS’ ever-growing land processing toolkit has undergone a significant strengthening. Key elements of the land processing toolbox include converted wave processing, 3D merge processing, AVO compliant processing, surface consistent deconvolution, multiple attenuation, 5D interpolation and fracture analysis via azimuthal AVO and NMO.
Land Data Imaging Key Capabilities:P wave land data processingInteractive geometry definitionPowerful noise attenuation tools
Coherent: local slant stack, low frequency array forming, f-k Random: local dip scan, f-xy in cross-spreadNoise burst: time/frequency domain outlier suppression, powerline rejection
Static correctionsRefraction statics: GLI and delay time (layer-based), and tomostatics (grid based)Surface-consistent residual statics: MASTT non-model-based algorithmTime-varying trim statics
Prestack interpolation5D MWNI and t-x coherence-guided
High resolution Radon multiple attenuationImagingNMO, PSTM and PSDM from topographyPowerful interactive PSTM velocity scanning toolWell-log calibration and anisotropic PSDMFracture/stress analysis via azimuthal AVO and NMO
Merge processingAVO compliant processing4D processingMulticomponent land processing
Receiver vector orientation correctionRotation of horizontal componentsReceiver shear statics correction Asymptotic and depth-variant VTI-compliant CCP binningShear wave splitting analysis and layer-stripping correction Shear wave splitting display for fracture analysisInteractive tool for PP-PS event registration and PP time squeezing4D processing
Depth ImagingBuilt upon extensive experience in high-end imaging with the most advanced computer power, TGS’ ImageZ™ depth imaging software runs on massive parallel and distributed Linux clusters, which utilize both CPU and GPU architectures. TGS provides industry leading migration algorithms, including Reverse Time (RTM), Kirchhoff Pre-stack Depth (KPSDM), Wave Extrapolation (WEM) and beam.
TGS’ velocity model building tools include full azimuth ray-tracing tomography as well as anisotropic parameter estimation tools for Vertical Transverse Isotropic (VTI) and Tilted Transverse Isotropic (TTI) media. TGS has developed interactive well-editing and calibration tools to tie the seismic velocity to the vertical velocity from well information. Leading-edge anisotropy estimation tools and auto-picking routines are used to derive epsilon and delta (plus theta and phi for TTI imaging) from the seismic or Vertical Seismic Profile (VSP) data where available.
Additionally, TGS offers subsalt velocity model building tools such as Delayed Imaging Time (DIT) scans and subsalt tomography. Interactive beam migration and layer-stripping RTM can be used for salt model refinement.
Depth Imaging Key Capabilities:3D PSDM algorithms to meet all imaging needs
Kirchhoff pre-stack depth migrationBeam migration (rapid testing of velocity models and salt interpretation)Common shot (and common P) one-way WEMReverse time migration (FD and pseudo spectral methods)Mirror migration (Kirchhoff and RTM)Q TomographyQ MigrationFull Waveform Inversion (FWI)
Tomography and Subsalt velocity model building toolsFull azimuth ray-tracing tomographyFault constrained tomographySimultaneous inversion for velocity, delta and epsilonDIT Scans (RTM or WEM)Interactive beam migration and layer-stripping RTM for salt model refinementVariable salt (dirty salt) velocity modeling and updates
Specialized Model Building ToolsInterpretation driven modelingDirectional imaging stacks (for WAZ data)3D RTM gathers for tomography updates in complex areas
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Claymore Cyclops Europa Princess Blood, Sweat & TearsMarsSlammerSturgis
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Reservoir AnalysisSeismic characterization of reservoirs is vital for exploration and production of hydrocarbons. Seismic reservoir characterization assists in the definition of geometry of a reservoir, the distribution of physical property characteristics within a reservoir, and in correlation of all available detail. TGS specializes in working with clients to solve/address their specific problems and find amicable solutions. TGS’ 4C/4D processing capabilities include:
Coherence attributesCurvature attributesMulti-spectral estimates of curvaturesFracture analysis using curvature attributesJoint analysis of fracture attributes from curvature, azimuthal AVO, azimuthal NMO, shear-wave splittingAttribute visualizationThin-bed reflectivityRock physics analysisAVO/LMR analysisSeismic/VSP modelingGeobody tracking and volume estimationSpectral decompositionSeismic facies classificationImpedance inversionMulti-attribute analyses
4D Permanent Reservoir Monitoring (PRM)In conjunction with the Stingray PRM acquisition offering, TGS applies its industry leading depth imaging technology to 4D processing development. This technology focuses on the reduction of 4D noise and the preservation of high fidelity 4D signals to provide better and more targeted 4D imaging. TGS’ 4C/4D processing capabilities include:
Vector fidelity correctionRotation of horizontal componentsDynamic water velocity corrections (streamer and OBN)PZ summation4D binning4D static corrections4D statistics (NRMS, SDR, predictability)
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Enlightening the Reservoir®
Reservoirs rarely behave as predicted and modelled. Under-standing reservoir behavior using frequent and recently acquired data that is capable of discerning small changes in reservoir attributes enables TGS’ clients to increase production and make the most effective IOR decisions to maximize production whilst minimizing lifting costs.
Implementing a PRM solution leads to increases in total recovery factor, increases in reserves, reduced drilling costs, less produced water and faster data-based decisions to meet the expectations of stakeholders in each field and operating company.
TGS provides data solutions that assure oil and gas operators’ reservoir production and the highest payback for Increased Oil Recovery (IOR) schemes.
This is achieved through the deployment of Permanent Reservoir Monitoring (PRM) solutions that collect seismic information about the behavior of the reservoir, enabling increased production and reserves at lower cost and risk throughout the production life of a field.
By installing a Stingray® fiber-optic sensing system permanently on the seabed, operators are able to acquire high fidelity, four-component, time-lapse data (4C/4D) on a frequent basis. “Listening with light” using optical sensors enables TGS to deliver a step-change in reliability and to safely deploy the system in all field scenarios including obstructed areas, deep and ultra-deepwater.
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PRMFeasibilityStudy
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StingraySystemInstallation
Seismic AcquisitionPlatform and Subsea Engineering
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An Integrated ApproachTGS is focused on delivering complete, safe and cost-effective solutions for PRM in all scenarios. This is achieved by integrating the technical capabilities and resources of a global network of trusted world-class partners in optical sensing, manufacturing, installation, acquisition, processing and project management. The TGS business model is flexible, from the provision of individual components through to a fully project managed solution.
From PRM feasibility to processing the acquired data and extracting reservoir attributes, TGS’ integrated PRM Value Chain contains a unique suite of risk mitigation tools to ensure effective project delivery to provide the highest payback and lowest risk for IOR activities.
Stingray PRM Systems Stingray PRM systems comprise a permanently installed array of reliable four-component (4C), passive fiber-optic sensors, rigorously tested and qualified to military standards. Each Optical Sensing Unit (OSU) consists of one hydrophone and three orthogonally-mounted accelerometers.
With no subsea electrical power requirements and a low fiber count, the seabed array is connected through a small riser cable to the Stingray Recording System (SRS) situated on the platform, FPSO, or tied-back to a remote host facility up to 500 km away. The SRS communicates with the sensors by pulsing light into the array and receiving and decoding the returning signals to provide full-wave seismic imaging data for detailed reservoir characterization and monitoring.
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r The Stingray system’s simple design delivers efficient manufacturing, delivery, installation and operation, as well as operational performance. In common with experience in the telecommunications industry which has relied on optical fibers for over 30 years, TGS’ optical sensing systems offer a step-change in reliability, proven by the 11-year seabed operation of a military sensing system based on the same technology and backed by a warranty.
Amongst other applications, the system can be used to identify bypassed compartments, monitor flood fronts, plan infill drilling locations and sweep remaining oil more effectively.
Field-wide MonitoringHighly scalable for large field implementations, the Stingray system can be used to acquire active and passive data for reservoir management decision making as part of an Enhanced Oil Recovery program. The system benefits from the industry’s simplest, most robust fiber-optic architecture. Sensor lines connected in pairs allow bi-directional operation with no degradation in system performance, providing resilience from external events such as severing of a cable. The system’s 180 dB dynamic range ensures high quality data by allowing full recovery of direct source arrivals.
Well Zone MonitoringThe modular Stingray system is designed to help oil and gas operators address a variety of focused reservoir surveillance requirements such as well integrity, hydraulic fracture monitoring or cuttings disposal monitoring. By permanently installing a small Stingray 4C seismic sensing array on the seabed over the target area, operators benefit from high quality active and passive micro-seismic data to support production management decisions, as well as detect more localized changes in behavior by listening to real-time reservoir responses.
Deepwater Reservoir Monitoring Ever-increasing reservoir complexity, coupled with more difficult fluids and recovery from deeper waters, all challenge the need for optimal data quality and 4D detectability. Leveraging the efficient optical architecture of its proven technology, the Stingray system is qualified for deepwater. TGS is engaged in a collaborative program to develop the patent-pending equipment and methods required to install Stingray optical sensing arrays efficiently in water depths up to 3,000 m. This will enable cost-effective seismic reservoir monitoring in deepwater and obstructed areas as well as reduce engineering and reservoir risk.
4D Data Acquisition and ProcessingTGS provides dedicated, repeatable and cost-effective 4D acquisition through strategic alliances with specialist providers of containerized source solutions specially designed for PRM projects. Acquisition partnerships concentrate on maximizing synergies and creating a stronger combined offering in order to optimize project execution, turnaround and data quality. The significant acquisition activity and source vessel utilization by TGS can also be leveraged to provide source vessels from the long-term charter fleet when needed.
Seismic data quality control is carried out with TGS’ proprietary software developed to monitor the quality of system performance, acquisition activity and the integrity of the acquired data. Close integration of seismic quality control and 4D processing ensures high quality data whilst improving acquisition and processing turnaround time. By applying TGS’ industry leading depth imaging technology to 4D processing development, TGS focuses on the reduction of 4D noise and the preservation of high fidelity 4D signals to provide better and more targeted 4D imaging.
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UKTGS Geophysical Company (UK) LimitedGraylaw House21/21A Goldington RoadBedford MK40 3JY, UKtel: +44 (0) 1234 272122fax: +44 (0) 1234 325956email: [email protected]
TGS Geophysical Company (UK) LimitedMillbank House171-185 Ewell RoadSurbiton, Surrey KT6 6AP, UKtel: +44 (0) 208 339 4200fax: +44 (0) 208 339 4249email: [email protected]
NORWAYTGS-NOPEC Geophysical Company ASALensmannslia 4N-1386 Asker, Norwaytel: +47 66 76 99 00fax: +47 66 76 99 10email: [email protected]
TGS Geological Products and ServicesProfessor Olav Hanssensvei 7AN-4021 Stavanger, Norwaytel: +47 51 87 58 00fax: +47 51 87 58 01email: [email protected]
AUSTRALIATGS-NOPEC Geophysical CompanyLevel 5, MLC House1100 Hay StreetWest Perth, WA 6005 Australiatel: +61 8 9480 0000fax: +61 8 9321 5312email: [email protected]
SINGAPORETGS-NOPEC Geophysical Company7 Temasek Boulevard #20-6Singapore 039190tel: +65 (6884) 6461fax: +65 8 9321 5312email: [email protected]
USATGS-NOPEC Geophysical Company2500 CityWest Boulevard Suite 2000Houston, TX 77042 USAtel: +1 713 860 2100fax: +1 713 334 3308email: [email protected]
TGS Geological Products and Services785 Greens Parkway Suite 100Houston, TX 77067 USAtel: +1 281 319 4944fax: +1 281 319 4945email: [email protected]
TGS Geological Products and Services1010 Common Street Suite 2040New Orleans, LA 70112 USAtel: +1 504 524 3450fax: +1 504 524 3454email: [email protected]
TGS Geological Products and Services230 West Wilshire Boulevard Suite G5Oklahoma City, OK 73116 USAtel: +1 405 848 4407fax: +1 405 848 4036email: [email protected]
TGS Geological Products and Services5511 West 56th Avenue Suite 220Arvada, CO 80002 USAtel: +1 303 235 0033fax: +1 303 235 0040email: [email protected]
CANADACentennial Place2100, 250 - 5th Street SWCalgary, AlbertaCanada T2P 0R4tel: +55 21 2112 4740 fax: +55 21 2112 4601 email: [email protected]
BRAZILTGS do Brasil Ltda.Av. Luiz Carlos Prestes, 180 - sala 344Barra da Tijuca - Rio de Janeiro, RJ CEP: 22775-055tel: +1 403 781 1700fax: +1 403 781 1710email: [email protected]
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