Gulf of Oman GO2002

Acquisition mode:

Single source, single streamer

Streamer:

Type:

Input / Output, MSX digital

Length:

8000 m

Streamer Depth:

8 m

Near offset:

Max. 150 m

Group interval:

12.5 m

No. of groups:

640

Depth Controller /
Compass:

Every 300 m

Energy Source:

Type:

Sodera G-gun array

Depth:

7 m

Shot Interval:

25 m

Volume:

3710 CUI

Number of Sub. Arrays:

4

Configuration

Single source, "chevron" shaped

Sub-array separation:

20 m

Depth transducers:

4 x 3

Air Pressure:

2500 PSI

Data Recording:

Recording system:

I/O MSX 24-bit

Record Length:

9000 ms

Sample rate:

2 ms

Low-cut filter:

Out

Hi-cut filter:

206 Hz / 264 dB/Oct

Format:

2 x SEG-D 8036, 3590 cartridges
(i.e. Dual Recording)

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
3 cascade using picked NMO vels

Tvf:

Band pass filter (TVF)

Gain:

Residual gain or AGC

Gun + cable correction

Raw Stack SEGY

Raw Migration SEGY

Final Migration SEGY