ACQUISITION REPORT Sequence-0427
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4144C427
  Preplot G01A4144
  Direction 18.0°
  SOL Date 08:10:35utc 11-May-2002
  EOL Date 09:47:32utc 11-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir ESE
   Swell Height 1.0 [meters] Dir SSW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 62.7 55.4 [meters]
   Bottomspeed  4.6 4.4 [knots]
   Featherangle sb +1.6 sb +2.5 [deg]
   Cable noise 6.1 18.67 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3542  

Source Configuration
Source Position Inline Crossline Nominal Nom. Vol. Subarray Gun
Number   Offset [m] Offset [m] Depth [m] [inch ³] Count Count
1 STBD -345.0 25.0 -6.0 3542.0 3 24
2 PORT -345.0 -25.0 -6.0 3542.0 3 24

Streamer Configuration
Streamer Position Inline Crossline Nominal Length Type Group Channel Front-Tail
Number   Offset [m] Offset [m] Depth [m] [m]   Interval [m] Count  
1 STBD -520.0 350.0 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -7.0 4600 Nessie-3 12.5 368 2577-2944

Recording Configuration
Channel Descr. Recording Data RecLen Sample Chan Chan # Chan Chan # Filter
Set   Format Reduction [ss ¹] Int. [ms] In In Out Out Delay [ms]
1 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
2 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0001-0368 0368 0001 - 0368 5.60
3 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0369-0736 0368 0369 - 0736 5.60
4 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0737-1104 0368 0737 - 1104 5.60
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1105-1472 0368 1105 - 1472 5.60
6 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1473-1840 0368 1473 - 1840 5.60
7 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1841-2208 0368 1841 - 2208 5.60
8 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2209-2576 0368 2209 - 2576 5.60
9 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2577-2944 0368 2577 - 2944 5.60

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   2609 - 2610  
   SOL Dummy Record(s) 2611 - 2640 2611 - 2640 08:06:41 - 08:10:27
   FSP Start of Line 2641 2641 08:10:35
   MSP      
   LSP End of Line 3355 3355 09:47:32
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4300 - 4301  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2641 - 2690 2641 - 2690 08:10:35-08:16:59 Prime 16 Scratched Due to no coverage
    2691 - 3355 2691 - 3355 08:17:06-09:47:32 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1026mB. Low frequency strumming Str 6 channels 1841 - 1875. Occassional burst of swell noise present on records,approx 2-3 µB, affecting <5 % of traces.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2609 - 3038 2609 - 3038 1 1797  
  3039 - 4301 3039 - 4301 1 1798  
Stream 2
   Shot(s) Files Deck Reel Remark
  2609 - 3038 2609 - 3038 3 1797  
  3039 - 4301 3039 - 4301 4 1798  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 791, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
3051-3062     3051-3062 419-435 Bird depth out of spec Bird C2-4 max depth 10.0m
3053-3072     3053-3072 51-67 Bird depth out of spec Bird C1-4 max depth 9.4m
3335-3355     3335-3355 1-55 Noisy Trace(s) Turn noise dt rig
3335-3355     3335-3355 369-424 Noisy Trace(s) Turn noise dt rig
3335-3355     3335-3355 737-792 Noisy Trace(s) Turn noise dt rig
3335-3355     3335-3355 1105-1160 Noisy Trace(s) Turn noise dt rig
3335-3355     3335-3355 1473-1528 Noisy Trace(s) Turn noise dt rig
3335-3355     3335-3355 1841-1896 Noisy Trace(s) Turn noise dt rig
3335-3355     3335-3355 2209-2264 Noisy Trace(s) Turn noise dt rig
3335-3355     3335-3355 2577-2632 Noisy Trace(s) Turn noise dt rig
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
ALL     ALL 1-17, 20, 22-23, 369-390, 392-393, 405, 1105-1117, 1119-1126, 1129-1135, 1473, 1476-1489, 1495, 1841-1857, 1860-1864, 1867, 1873, 2209-2227, 2229-2232, 2239, 2577-2578, 2581-2589, 2591-2593, 2602-2603 Slope alarm > 5% of total line
2928     2928 ALL Gun timing error Gun 5-2 error (ms) : -1.6
2954-2973     2954-2973 2307-2323 Bird depth out of spec Bird C7-6
2970-2979     2970-2979 2675-2691 Bird depth out of spec Bird C8-6
3058-3074     3058-3074 75-91 Bird depth out of spec Bird C1-5
3155     3155 ALL Gun timing error Gun 2-3 error (ms) : -1.3
3220-3355     3220-3355 ALL Ship Noise From abeam. Level 5-10uBar. No Moveout
3336-3355     3336-3355 2209-2213 Bird depth out of spec Bird C7-1
Comment
Shot(s)     File(s) Trace(s) Type Remark
3300     3300 ALL Line Information Turning to STBD


 List of used abbreviations:
     SOL/EOL  Start/End of line. 
     FSP/LSP  First/Last shotpoint of the line. 
     FCSP/LCSP  First/Last chargeable shotpoint
     MSP  Midnight (last) shotpoint of the day
     FGSP/LGSP  First/Last Good Shotpoint
     FOSP/LOSP  First/Last Overlap Shotpoint
     FSP/LSP R/O  First/Last Shotpoint Runout
   
     Deg  Degrees: e[0,360]
     rev  Revolutions
     utc  Universal Time Coordinated
     SPs  Shotpoints
     CMPs  Common midpoints
     NTBP  Not to be processed
     SI  Seismic interference
TRILOGY INFORMATION MANAGER - ACQUISITION REPORT - GENERATED 10:03:35utc 11-May-2002