Transect: Abitibi Grenville

Processed By: SP Seismic Data Processors Ltd.
Date Processed: August 1991

Line 25 Migrated Stack

Location: North Abitibi
Shot Points: 101-979

No. Processing History Line 25
1 Format Conversion Yes

Record Length
18 s

Sample Interval
0.004 s
2 Crooked Spread Geometry Yes
3 Pre-Deconvolution Corrections Yes

Maximum Perpendicular Offset
No limit

Geophone Phase Compensation
Yes
4 Deconvolution Spiking

Pre-Whitening
1%

Operator Length
0.08 s

Near Offset Application Window
0.3-3.3 s

Far Offset Application Window
0.9-3.5 s
5 Pre-Filter Editing Trace edit
6 Bandpass Filter Out
7 Amplitude Compensation AGC

Window
0.5 s
8 Elevation Statics Yes

Datum
400 m ASL

Replacement Velocity
6000 m/s
9 Weathering Statics Yes

Weathering Velocity
1500 m/s
10 NMO Corrections Yes
11 Mute Yes

Offset/Time
(500 m: 0 s); (2000 m: 0.35 s); (12000 m: 1 s)
12 CDP Trim Statics Yes

Window
1.5-11 s

Maximum Shift
0.024 s
13 CDP Stacking 60 fold
14 Pre-Scaling Filter Bandpass

Time Variant
Yes

Time/Pass Band
(0-2.5 s: 11,16,56,61 Hz); (2.5-8 s: 5,10,56,61 Hz); (8-12 s: 5,10,48,53 Hz); (12-18 s: 5,10,40,45 Hz)
15 Scaling Multiple gate AGC

Time/Window
(0-2 s: 1 s); (2-18 s: 4 s)
16 Migration FK migration

Velocity
6000 m/s

Other Formats Processed Comments
Structure Stack Yes
DMO Stack No