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See energy defined. Blanchard 3DMULTI-CLIENT ONSHORE SEISMIC GRADY AND MC CLAIN COUNTIES, OKLAHOMA
See the energy at TGS.com© 2014 TGS-NOPEC Geophysical Company ASA. All rights reserved.
*Pricing available upon request
Surface Area 433 mi2
Receiver Interval 220 ft
Source Interval 220 ft diagonal
Receiver Line Spacing 880 ft
Source Line Spacing 1,100 ft
Rx Line Orientation E-W
Bin Size 110 x 110 ft
Source Type Vibroseis with dynamite infill
Template 32 lines live x 130 stations
Nominal Fold 208
Maximum Offset 19,913 ft
Record Length 5 seconds
Sample Rate 2 ms
Blanchard 3DTGS-NOPEC has used its best efforts to produce this map free of errors, utilization of same shall be at the sole
risk of the user. TGS-NOPEC assumes no liability or responsibility for reliance placed thereon.
ACQUISITION PARAMETERS*
See the energy at TGS.com© 2014 TGS-NOPEC Geophysical Company ASA. All rights reserved.
Blanchard 3D
Pre-Processing � Geometry QC � Trace edit � Noise attenuation in shot domain � Surface consistent amplitude compensation � Refraction statics � Spherical divergence correction � Noise attenuation in CDP domain � Velocity analysis � Surface consistent decon
� Residual de-noise (if required) � Second pass of surface consistent amplitude compensation
(if required) � Reflection statics � Velocity analysis � Second pass of residual statics (if needed) � Second pass velocity analysis (if needed) � Output pre-processed data with refraction and reflection
statics stored at trace headers
Time Imaging � Pre-stack time migration velocity analysis (2 passes) � Output migration velocities � Kirchhoff pre-stack curved ray migration � Output raw migrated gathers without NMO � Continuous high-resolution velocity and ETA analysis
and application � Output high resolution velocity field � Radon multiple attenuation
� Residual de-noise (if required) � Output processed migrated gathers with NMO � Mute and stack � Output raw migration stack � Filtering and scaling � Noise reduction and footprint removal � Output processed migration stack
Deliverables � Pre-processed data � Raw Time Migration Gathers with NMO removed � Processed Time Migration Gathers with NMO � Pre-Stack Raw Time Migration Stack
� Pre-Stack Processed Time Migration Stack � Migration Velocities � High Resolution RMS Velocity Field
Depth Imaging (Optional) � Build initial vertical velocity model by calibrating PSTM
velocities with checkshots � Remove long wavelength statics from data and move data to
acquisition datum � Kirchhoff depth migration � Estimate anisotropic parameters (delta and epsilon) � Three iterations of PSDM and tomography � Final iteration of PSDM and tomography (if required) � Final VTI Kirchhoff PSDM
� Output depth gathers with NMO � Residual moveout � Output depth gathers with NMO � Stack � Output raw migration stack � Noise removal (f-k power or fxy decon) � Amplitude balance and TVF � Footprint removal � Output processed migration stack
Deliverables � Depth Raw Migration Gathers with NMO � Depth Processed Migration Gathers with NMO � Pre-Stack Raw Depth Migration Stack
� Pre-Stack Processed Depth Migration Stack � Final Interval Velocity Model � Final Delta & Epsilon models
Optional Products � LAS well logs
PROCESSING PARAMETERS
See the energy at TGS.com© 2014 TGS-NOPEC Geophysical Company ASA. All rights reserved.
US Tel: +1 713 860 2100Email: [email protected]
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See the energy at TGS.com© 2014 TGS-NOPEC Geophysical Company ASA. All rights reserved.
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