Canada

40°W

45°W

45°W

50°W

50°W55

°N

55°N

50°N

50°N

45°N

45°N

NE NEWFOUNDLAND FLEMISH PASSMULTI-CLIENT 2D SEISMIC SURVEY0 50 100 150 20025

Kilometers

N:\Public\GIS\Arc Map Documents\Canada\SpecSheetMaps\NE Newfoundland_Flemish Pass 2014 (port).mxd February 16, 2015

Canada

Greenland

St. Pierre & Miquelon

2014: 21,834.725 km

2012-2013: 22,489.525 km

ACQUISITION PARAMETERS Acquisition Date: Sept. 2012 – Nov. 2012, June 2013 – Nov. 2013

June 2014 – Nov 2014 Project size: 44,324.250 km

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

17 February 2015

NE Newfoundland Flemish PassPSTM ProcessingMULTI-CLIENT 2D SURVEY