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SOUTHERN FLEMISH PASS 3DMULTI-CLIENT 3D SEISMIC SURVEY0 8.5 17 25.5 344.25

Kilometers

N:\Public\GIS\Arc Map Documents\Canada\SpecSheetMaps\SouthernFlemishPass3D2015(Port).mxd December 10, 2015

Canada

St. Pierre & Miquelon

EL-1135

Southern Flemish Pass 3D Pre-Stack Time Migration (PSTM)

Multi-Client 3D Survey, 4,370 km²

ACQUISITION PARAMETERS

Acquisition date: June 2015 – October 2015 Acquisition system: GeoStreamer® recording system

Source volume: 4,130 cu in (2,000 psi) x 2 Source interval: 50 m per subsurface line (25 m flip/flop)

Source Separation: 50 m Streamer separation: 100 m

Streamer length: 8,100 m x 10 Number of channels: 648 per streamer / 6,480 per shot

Group interval: 12.5 m Record length: 10,000 ms

Sample interval: 2 ms Fold of coverage: 81

Recorded bin size: 6.25 m x 25 m Primary navigation: Skyfix.XP

Recording instrument: GeoStreamer® recording system Cable depth: 20 m

Gun depth: 7 m Shooting direction: E-W

Acquired by: PGS Ramform Valiant

TIME PROCESSING SEQUENCE

Data processing performed by PGS onboard Ramform Valiant

Reformat Seismic/Navigation Merge Swell and mechanical noise attenuation Geosensor Frequency Reconstruction Wavefield Separation & Extrapolation (Summation / P-UP dataset) SEGY output

Processing performed by PGS-Houston (June, 2015 – July, 2016)

Source deghosting Designature and zero phase Noise attenuation, as required Spherical divergence correction Direct arrival attenuation Linear noise attenuation Receiver motion correction Apply water column statics Wave equation Shallow water de-multiple 3D SRME

Adjacent trace drop to 12.5 m High resolution radon de-multiple Multiple diffraction removal Shot and channel consistent amplitude compensation Acquisition footprint attenuation Data regularization FXY deconvolution Final Anisotropic Q-Kirchhoff PSTM Post-migration conditioning Output SEGY

Southern Flemish Pass 3DPre-Stack Time Migration (PSTM) Multi-Client 3D Survey, 4,370 km²

AVAILABLE PSTM DELIVERABLES

P-UP Field data with navigation De-multiple /shot ordered data PSTM CDP gathers with NMO Raw PSTM volume Processed PSTM volume Raw angle stacks (near 3-14°, near-mid 14-25°, far-mid 25-36°, far 36-47°) Filtered angle stacks (near 3-14°, near-mid 14-25°, far-mid 25-36°, far 36-47°) Migration & stacking velocities (ASCII) 3D stacking velocity trace volume 3D PSTM velocity trace volume ETA high order NMO velocity correction – interpolated trace volume Processed source-receiver navigation (UKOOA) Post Stack navigation – bin center (UKOOA) Final processing report in PDF format

5 December 2016