Seismic Processing at CGG

Jean-Yves Blanc

June 2016
Agenda

 What is seismic processing?

 CGG specificities

 Subsurface Imaging Business Line

 Some highlights of our HPC infrastructure

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What is seismic processing?

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Echography at scale

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Acquiring geophysical data

• 1-10Ks of square km
• Months to years
• 1000s of people
• 10s of PB raw data

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 Raw seismic data
Single
• 100s TB to 10s PB
Traces on a single line (on-shore) • Several trucks of tapes
Recorded
“Trace”
• 1000s of samples per trace
• 100k-10s millions of traces per sqkm

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“Customized” processing sequence & technology
Reformat from SEG-Y format field data
Geometry assignment
Elevation Statics
Spherical Divergence Correction
Statistical de-spike for high amplitude noise bursts
Aliased linear noise attenuation
Adaptive Ground-roll Attenuation
Guided Wave Removal with primary protection
3D Random noise attenuation with primary protection
Statistical de-spike on randomized
1st pass residual statics
Surface Consistent Deconvolution
Surface Consistent Amplitude Correction
COV denoise, with primary protection
3D regularisation
PSTM
Structurally-consistent dip filter
Linear RADON
Parabolic RADON
Trim statics
Time variant scaling

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Need ~10-20x storage buffers for every project
 End product: Image & reservoir properties

2km

12km
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CGG specificities

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An integrated geoscience provider
Equipment Acquisition Geology,Geophysics
& Reservoir

Full range of products and clear Full range of seismic and other  Subsurface Imaging
market leadership onshore, offshore geophysical methods for acquisition:
and downhole:  GeoConsulting
 Marine
 Technology leadership  Land  GeoSoftware
 Large installed base  Multi-Physics  Multi-Client & New Ventures
 A cornerstone for CGG integrated  Seabed*
 Data Management Services
solutions

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And a pure player focused on technology
 Over 80 years of innovation leadership StagSeis
BroadSeis

 Ongoing R&D commitment TTI RTM

UltraSeis

 Technology partnerships and centers Wide Azimuth

FWI

HPVA
Sentinel Sentinel MS
Kirchhoff PSDM
3D SRME
3D Innovation
Digital Sercel 408 Sercel 508XT
Innovation Sercel 428
Sercel 348
2D Innovation UNITE
Long-Offset FALCON
Creation of Reflection Processing on Marine Acquisition
CGG Seismic Micro RoqSCAN
EV2

1930 1940 1950 1960 1970 1980 1990 2000 2010 2020

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An industrial company making money out of HPC

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2 CPU
0 GPU
2008
2009
2010
2011
2012 GPU
12 CPU
2013
Subsurface Imaging Business Line

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A large organization
• #1 in seismic processing
• 26 processing centers
• Around 2000 people
• Above 150 clients
• In-house software
• 100s of researchers
• Even more developers

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 Our HPC infrastructure

• 10 000s cluster nodes

• Very high density
• Intel single-socket chips
• Significant local storage
• Ethernet interconnect

• 100s PB storage
• Raid 6 with distr. parity
• Low-cost drives
• In-house architecture
• 1000s GPU servers • Very good fault-tolerance
• Very high density
• Very fast local storage
• Ethernet interconnect

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Our processing software: geovation
• 10s M lines of code
• 500+ processing batch modules
• 10s interactive applications
• Job scheduler
• Storage middleware
• Cluster management tools

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Some highlights of our HPC infrastructure

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Strategic partnership: AMD example

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Evaporative cooling in the UK

PUE is 1.06

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 Oil immersion
• Large-scale GPU farms are complex to manage
• Oil immersion adds its own complexity
• Vendors now have oil-ready GPU servers
• Oil immersion allows higher power density

50+ % electricity savings

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PUE reduced to 1.02
Conclusion
Interesting challenges

 Depressed oil & gas market

 Nonetheless managing a fairly significant HPC infrastructure

 Interesting technological projects

 Continue to look for top talents!!

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Thank you