Middle East and Mediterranean - Gulf of Oman - GO2002 - PGS
Middle East and Mediterranean - Gulf of Oman - GO2002 - PGS Middle East and Mediterranean - Gulf of Oman - GO2002 - PGS
Middle East and Mediterranean - Gulf of Oman - GO2002 ACQUISITION MODE Single source, single streamer STREAMER Type: Input / Output, MSX digital Length: 8000 m Streamer Depth: 8m Near offset: Max. 150 m Group interval: 12.5m No. of groups: 640 Depth Controller/Compass: Every 300m ENERGY SOURCE Type: Sodera G-gun array Depth: 7m Shot Interval: 25m Volume: 3710 CUI Number of Sub. Arrays: 4 Configuration: Single source, "chevron" shaped Sub-array separation: 20m Depth transducers: 4 x 3 Air Pressure: 2500 PSI DATA RECORDING Recording system: I/O MSX 24-bit Record Length: 9000 ms Sample rate: 2ms Low-cut filter: Out Hi-cut filter: 206 Hz / 264 dB/Oct Format: 2 x SEG-D 8036, 3590 cartridges (i.e. Dual Recording) PROBABLE PROCESSING FLOW: Reformat: SEGD to PGS Internal Format Geometry: Apply 2D geometry Edit: Selected bad shots and channels zeroed Statics: System delay Filter: Low cut and anti-alias filter Resample: From 2ms to 4ms Filter: Designature Spherical Divergence: 1/T**2 Trace Drop: Drop alternate traces SRME: Surface related multiple elimination Velocity Analyses: NMO velocities on a 2km grid Radon demultiple MDA: Multiple diffraction attenuation NMO: Picked DMO velocities on a 1km grid Mute: Outer trace mute Inner trace mute 2D DMO stack Tvf: Pre-mig.Band pass filter (TVF) Gain: Pre-mig gain 2D Migration: CFDMIG finite difference three cascade using picked NMO vels Tvf: Band pass filter (TVF) Gain: Residual gain or AGC Gun + cable correction AVAILABLE DATASETS: Raw Stack SEGY Raw Migration SEGY Final Migration SEGY
<strong>Middle</strong> <strong>East</strong> <strong>and</strong> <strong>Mediterranean</strong> - <strong>Gulf</strong> <strong>of</strong> <strong>Oman</strong> - <strong>GO2002</strong><br />
ACQUISITION MODE<br />
Single source, single streamer<br />
STREAMER<br />
Type: Input / Output, MSX digital<br />
Length: 8000 m<br />
Streamer Depth: 8m<br />
Near <strong>of</strong>fset: Max. 150 m<br />
Group interval: 12.5m<br />
No. <strong>of</strong> groups: 640<br />
Depth Controller/Compass: Every 300m<br />
ENERGY SOURCE<br />
Type: Sodera G-gun array<br />
Depth: 7m<br />
Shot Interval: 25m<br />
Volume: 3710 CUI<br />
Number <strong>of</strong> Sub. Arrays: 4<br />
Configuration: Single source, "chevron" shaped<br />
Sub-array separation: 20m<br />
Depth transducers: 4 x 3<br />
Air Pressure: 2500 PSI<br />
DATA RECORDING<br />
Recording system: I/O MSX 24-bit<br />
Record Length: 9000 ms<br />
Sample rate: 2ms<br />
Low-cut filter: Out<br />
Hi-cut filter: 206 Hz / 264 dB/Oct<br />
Format: 2 x SEG-D 8036, 3590 cartridges (i.e. Dual Recording)<br />
PROBABLE PROCESSING FLOW:<br />
Reformat: SEGD to <strong>PGS</strong> Internal Format<br />
Geometry: Apply 2D geometry<br />
Edit: Selected bad shots <strong>and</strong> channels zeroed<br />
Statics: System delay<br />
Filter: Low cut <strong>and</strong> anti-alias filter<br />
Resample: From 2ms to 4ms<br />
Filter: Designature<br />
Spherical Divergence: 1/T**2<br />
Trace Drop: Drop alternate traces<br />
SRME: Surface related multiple elimination<br />
Velocity Analyses: NMO velocities on a 2km grid<br />
Radon demultiple<br />
MDA: Multiple diffraction attenuation<br />
NMO: Picked DMO velocities on a 1km grid<br />
Mute: Outer trace mute<br />
Inner trace mute<br />
2D DMO stack<br />
Tvf: Pre-mig.B<strong>and</strong> pass filter (TVF)<br />
Gain: Pre-mig gain<br />
2D Migration: CFDMIG finite difference three cascade using picked NMO<br />
vels<br />
Tvf: B<strong>and</strong> pass filter (TVF)<br />
Gain: Residual gain or AGC<br />
Gun + cable correction<br />
AVAILABLE DATASETS:<br />
Raw Stack SEGY<br />
Raw Migration SEGY<br />
Final Migration SEGY
Data Library<br />
Contact information<br />
Petroleum Geo-Services<br />
Str<strong>and</strong>veien 4<br />
PO Box 290<br />
Lysaker Norway<br />
Tel: +47 67 51 41 44<br />
E-mail:<br />
nicolai.dahl@pgs.com
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