ACQUISITION REPORT Sequence-0416
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3824J416
  Preplot G01A3824
  Direction 18.0°
  SOL Date 19:20:46utc 06-May-2002
  EOL Date 22:08:47utc 06-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NW
   Swell Height 1.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 64.0 56.0 [meters]
   Bottomspeed  4.5 4.5 [knots]
   Featherangle port -4.1 port -2.3 [deg]
   Cable noise 5.4 5.0 [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)   1610 - 1611  
   SOL Dummy Record(s) 1612 - 1641 1612 - 1641 19:16:41 - 19:20:38
   FSP Start of Line 1642 1642 19:20:46
   MSP      
   LSP End of Line 2900 2900 22:08:47
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2971 - 2972  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1642 - 2900 1642 - 2900 19:20:46-22:08:47 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1026mB. Low frequency strumming Str 6 channels 1841 - 1875. LSP 2900.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1610 - 2039 1610 - 2039 2 1760  
  2040 - 2469 2040 - 2469 1 1761  
  2470 - 2899 2470 - 2899 2 1762  
  2900 - 2972 2900 - 2972 1 1763  
Stream 2
   Shot(s) Files Deck Reel Remark
  1610 - 2039 1610 - 2039 3 1760  
  2040 - 2469 2040 - 2469 4 1761  
  2470 - 2899 2470 - 2899 3 1762  
  2900 - 2972 2900 - 2972 4 1763  

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, 1553, 1031 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
2577-2584     2577-2584 2627-2643 Bird depth out of spec Bird C8-4, max depth 9.8m
2591-2597     2591-2597 2612-2636 Monowing wash Low frequency, high amplitude noise due to monowing wash
2669-2680     2669-2680 2259-2275 Bird depth out of spec Bird C7-4, max depth 9.6m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS test Fails PS test
ALL     ALL 1-13, 16, 369-383, 1105-1113, 1115, 1122-1126, 1129-1135, 1484, 1489, 1841-1850, 1852-1856, 1860, 2209-2220, 2222-2225, 2577-2578, 2582, 2584-2589, 2591, 2602 Slope alarm > 5% of total line
1784-1817     1784-1817 2259-2275 Bird depth out of spec Bird C7-4
1790-1811     1790-1811 2283-2299 Bird depth out of spec Bird C7-5
2041-2051     2041-2051 2283-2299 Bird depth out of spec Bird C7-5
2469     2469 ALL Gun timing error Gun 1-2 error (ms) : -1.7
2556     2556 ALL Gun timing error Gun 5-2 error (ms) : -1.6
2572-2604     2572-2604 2651-2667 Bird depth out of spec Bird C8-5
2587-2616     2587-2616 2675-2691 Bird depth out of spec Bird C8-6
2589-2607     2589-2607 2259-2275 Bird depth out of spec Bird C7-4
2599-2605     2599-2605 2627-2643 Bird depth out of spec Bird C8-4
2607-2613     2607-2613 2651-2667 Bird depth out of spec Bird C8-5
2676     2676 ALL Gun timing error Gun 5-2 error (ms) : -1.7
2703     2703 ALL Gun timing error Gun 2-1 error (ms) : -1.6
2722-2737     2722-2737 2675-2691 Bird depth out of spec Bird C8-6
2742     2742 ALL Gun timing error Gun 5-2 error (ms) : -1.7
2757-2766     2757-2766 2699-2715 Bird depth out of spec Bird C8-7
Comment
Shot(s)     File(s) Trace(s) Type Remark


 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 22:23:34utc 06-May-2002