ERHC Energy Inc (ERHE)

[RUBY1100]

any geologists here ?
http://www.pgs.com/business/products/datalibrary/wsafrica/saotomeprincipe/eez/

SURVEY NAME: Exclusive Economic Zone - São Tomé

SURVEY AREA: 4900km 2D

ACQUISITION PARAMETERS: Mode: Single source, single streamer

Energy Source
Shot Interval: 25m
Source Type: Sleeve and Bolt 1500 LL Guns
Air Pressure: 2000psi
Volume: 3090 cu in
Strings per Array: 3
String Separation: 12.5m
Source Depth: 6m

Streamer
Streamer Length: 6000m
Streamer Depth: 7m
In-line Offset: as short as practical (<100m)< /><100m)
No. of Groups: 480
Group Interval: 12.5m
Group Length: 12.5m

Data Recording
Record Length: 9000ms
Sampling Rate: 2.0ms
Low-cut Filter: 3Hz / 6dB per octave
Hi-cut Filter: 218Hz / 484dB per octave
Format: SEGD 8015, 3590 Cassette

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
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 NMO velocities on a 2km 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

AVAILABLE DATASETS: Raw Stack SEGY
Raw Migration SEGY
Final Migration