spec

1. NE Newfoundland Flemish Pass
MULTI-CLIENT 2D SURVEY; 38,780 km
ACQUISITION PARAMETERS
PSTM Processing
Acquisition Date: Sept. 2012 – Nov. 2012, June 2013 – Nov. 2013
June 2014 -
Vessel: Sanco Spirit
Shooting Orientation: Strike and dip to the coastline
Recording Instrument: Geostreamer 24 bit (GAS)
Airgun Source: 4808 cubic inches
Gun Depth: 9 meters
Shotpoint Interval: 25 meters
Group Interval: 12.5 meters
Recording Channels: 648
Streamer Depth: 20 meters
Streamer Length: 8100 meters
Record Length: 10 seconds
Sample Interval: 2 milliseconds
Nominal Fold: 162
TIME PROCESSING SEQUENCE
Data processing performed by PGS; Houston, TX USA
 SEG-D field data input
 Merge navigation information into trace headers
 Trace Editing
 Swell Noise Attenuation and Despike
 Linear Noise Attenuation
 Wavefield Separation & Extrapolation (Summation)
 SEGY output P-UP dataset (streamer redatumed to 9 m)
TGS-Imaging; Calgary, Alberta Canada
 Input SEG-Y
 Designature Debubble and Zero phase
 Resample from 2ms to 4ms
 Shot Domain Noise Attenuation
 Tau-P Mute and Decon (as needed)
 2D SRME
 Velocity analysis
 Residual Noise Attenuation
 Velocity analysis-
 Curved ray Kirchhoff pre stack time migration
 Residual Multiple Noise Attenuation
 Kirchhoff Curved ray pre stack time migration
 Radon
 Inverse NMO; automatic velocity analysis
 Amplitude recovery
 Mute and stack
 Post migration conditioning: F-X deconvolution,
band-pass filter, scaling, stretched to depth
 Output SEGY
AVAILABLE PRODUCTS
 Field data with navigation in the trace headers / shot ordered (648 traces/shot)
 Pre-migration final de-multiple CDP gathers (162 fold)
 Pre-stack time migrated CDP gathers without NMO (12.5m, 81 fold)
 Pre-stack time migrated CDP gathers with NMO (12.5m, 81 fold)
 Raw migration
 Processed migration
 Processed migration stretched to depth
 Angle Stacks
 Migration velocities (ASCII)
 Migration velocity trace volume – RMS
 Stacking velocities (SEGY & ASCII)
 Processed source-receiver navigation (UKOOA)
 Post stack navigation (UKOOA)
 Ship-borne gravity data
August 14, 2014

2. Canada
40°W
45°W
45°W
50°W
50°W
55°N
55°N
50°N
50°N
45°N
45°N
NE NEWFOUNDLAND FLEMISH PASS
MULTI-CLIENT 2D SEISMIC SURVEY
0 25 50 100 150 200
Kilometers
N:PublicGISArc Map DocumentsCanadaSpecSheetMapsNE Newfoundland_Flemish Pass 2014 (port).mxd August 14, 2014
Canada
Greenland
St. Pierre & Miquelon
2014 Acquisition: 16,020.91 km
2012-2013 Acquisition: 22,489.525 km