TGS provides seismic imaging services with a global reach using proprietary processing techniques. They operate a large supercomputer center with over 30 petaflops of computing power and robust data security. TGS offers a full range of 2D and 3D imaging services from field data processing to final migration and inversion, utilizing the latest technologies like broadband processing, high resolution tomography, anisotropic imaging, full waveform inversion, and least squares RTM to improve subsalt imaging.

1. Technology Update
Oct 2016

2. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
Imaging Service – Global Reach with Strong R&D
Proprietary ProcessingMulti-Client Processing Multi-Client & Proprietary Processing
Onshore and
unconventional plays
Gulf of Mexico
Deepwater and Shelf
plays
Brazil salt plays
West Africa Deepwater and
subsalt plays
West Australasia
Deepwater plays
North Sea legacy production
and new plays
Greenland
Arctic plays
Colombia
(Pacific & Caribbean)
Calgary
Houston
Bedford, UK

3. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
TGS Super Computer Center
Hardware
• Over ten thousand GPUs
• Over ten thousand CPUs
• Huge and fast online storage
•
• Over 30 Peta Flops compute power
Center and Data Safety
• Inline UPS protection for all production systems
• On-site back-up generators for power outages
• Climate controlled computer and tape storage rooms
• Fire detection and suppression systems
• Routine backups for disaster recovery
0
100000
200000
300000
400000
500000
600000
700000
800000
900000
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
Numberofcores

4. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
TGS Imaging – Services Offered
 Multi- Client & Proprietary
 Marine or Land, 2D or 3D
 Narrow azimuth, wide azimuth, multi-azimuth 3D
 Ocean bottom cables or ocean bottom nodes
 4D Processing
 From field data to final migration and inversion

5. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
Latest Technology
 Broadband Processing with 3D deghost
 Latest denoise and demultiple techniques (3D SRME, SWME, IME)
 Multi-Dimensional data regularization (3D, 4D, 5D)
 AVO compliant time & depth pre-stack imaging capabilities
 Complete toolkit for anisotropic imaging (VTI, TTI, Orthorhombic)
 Imaged Guided and high resolution tomography
 Kirchhoff, WEM, Beam, RTM migrations – suited for VTI, TTI, Orthorhombic
 Least Squares RTM, FWI, COR Gathers for subsalt tomography
 Illumination Studies

6. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
3D De-ghost Broadband Processing
GoM: 3D de-ghost enhances
bandwidth and resolution
without
with

7. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
High Resolution Tomography
Velocity model building capability
 High Resolution – Image-Guided TOMO
 More accurate and robust offset-dependent picking
 Structure conformance
Angola: 3D PSDM Image and Velocity Update

8. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
Orthorhombic PSDM
GoM: Declaration 3D uses orthorhombic
model building and large-offset dual WAZ
to enhances image of Norphlet Play
before
after

9. Common Offset RTM (COR)
Improved images below salt!
Common Offset RTM Gathers (COR)
TGS’ Common Offset RTM (COR) gathers are a reliable and efficient technology
targeting velocity model building in the hard-to-illuminate subsalt region. In COR,
offset limited shot gathers are migrated separately and then collected together to
form offset gathers. COR gathers provide a superior perspective on subsalt regions.
Combining COR with an existing tomographic inversion engine and allowing updates
to extend into the salt can deliver significantly better subsalt velocity models and
images.
Before COR Velocity Update
After COR Velocity Update

10. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
Full Waveform Inversion
North Sea: 3D FWI image below fault shadow
before
after

11. ©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
Least Square RTM
GoM: LSRTM improves subsalt image
Regular RTM
LSRTM

12. Thank you
©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
Thank you
©2015 TGS-NOPEC Geophysical Company ASA. All rights reserved.
713-860-2100