ACQUISITION REPORT Sequence-0023
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2352A023
  Preplot G01A2352
  Direction 198.0°
  SOL Date 18:16:03utc 26-Oct-2001
  EOL Date 23:20:14utc 26-Oct-2001
 Attributes:  
   Wind Force 15.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SSW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 42.0 51.0 [meters]
   Bottomspeed  4.4 3.8 [knots]
   Featherangle port -2.5 port -4.7 [deg]
   Cable noise 6.3 0.0 [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 2.0 0001 0001-0001 0001 0001 - 0001 0.00
2 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
3 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
4 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0001 0001-0001 0001 0001 - 0001 0.00
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0001-0368 0368 0001 - 0368 5.60
6 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0369-0736 0368 0369 - 0736 5.60
7 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0737-1104 0368 0737 - 1104 5.60
8 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1105-1472 0368 1105 - 1472 5.60
9 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1473-1840 0368 1473 - 1840 5.60
10 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1841-2208 0368 1841 - 2208 5.60
11 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2209-2576 0368 2209 - 2576 5.60
12 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)   3545 - 3544  
   SOL Dummy Record(s) 3543 - 3534 3543 - 3534 18:14:40 - 18:15:55
   FSP Start of Line 3533 3533 18:16:03
   MSP      
   LSP End of Line 1486 1486 23:20:14
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1485 - 1484  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3533 - 1486 3533 - 1486 18:16:03-23:20:14 Prime 0 Valid LGSP 2700 d/t high swell noise
 Remarks:      
   Navigation Streamer depth at 7m    
   Recording QC MANIFOLD SENSOR MISREADING ARRAY 2 (ARRAY PRESSURE GOOD) Filter delay 5.6ms. Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1010mB. Str 8 Bird 1 mask on External Header, constantly deep, 8.1m. All gun DI's occ erratic d/t increasing swell. Occ tailbouy jerk seen cable 6. Swell noise seen on all cables 10-15% per streamer. LGSP 2700 d/t hight swell noise    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3545 - 3116 3545 - 3116 1 98  
  3115 - 2686 3115 - 2686 2 99  
  2685 - 2256 2685 - 2256 2 100  
  2255 - 1826 2255 - 1826 2 101  
  1825 - 1485 1825 - 1485 1 102  
Stream 2
   Shot(s) Files Deck Reel Remark
  3545 - 3116 3545 - 3116 3 98  
  3115 - 2686 3115 - 2686 4 99  
  2685 - 2256 2685 - 2256 4 100  
  2255 - 1826 2255 - 1826 3 101  
  1825 - 1485 1825 - 1485 4 102  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1191 Killed traces  
ALL     ALL- 1948 Killed traces  
ALL     ALL- 2764 Killed traces  
ALL     ALL- 2806 Killed traces  
ALL     ALL 304, 1127, 1483, 1495, 2775 Noisy Channels  
1513     1513 ALL Gun timing error Gun 2-2 error (ms) : -1.6
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301 Fails Crosfeed  
ALL     ALL ALL   Depth indicator Gun String 2 position 4 incorrect reading (shallow)
ALL     ALL 4-7, 9, 369-374, 737-742, 744, 748, 1105-1110, 1112-1113, 1473, 1841, 2209-2210, 2217 Slope alarm > 5% of total line
3426     3426 NONE Bird depth out of spec Bird C7-1
3388     3388 NONE Bird depth out of spec Bird C7-2
3293     3293 NONE Bird depth out of spec Bird C1-2
2981     2981 NONE Bird depth out of spec Bird C7-1
2978     2978 NONE Bird depth out of spec Bird C7-1
2976-2973     2976-2973 NONE Bird depth out of spec Bird C7-1
2949-2942     2949-2942 NONE Bird depth out of spec Bird C7-1
2910     2910 NONE Bird depth out of spec Bird C7-1
2908     2908 NONE Bird depth out of spec Bird C7-1
2906-2904     2906-2904 NONE Bird depth out of spec Bird C7-1
2902-2901     2902-2901 NONE Bird depth out of spec Bird C7-1
2898     2898 NONE Bird depth out of spec Bird C7-1
2890     2890 NONE Bird depth out of spec Bird C7-1
2886     2886 NONE Bird depth out of spec Bird C7-1
2880     2880 NONE Bird depth out of spec Bird C7-1
2878     2878 NONE Bird depth out of spec Bird C7-1
2876     2876 NONE Bird depth out of spec Bird C7-1
2869-2868     2869-2868 NONE Bird depth out of spec Bird C7-1
2841     2841 ALL Gun timing error Gun 3-2 error (ms) : -1.6
2818     2818 NONE Bird depth out of spec Bird C7-1
2816-2815     2816-2815 NONE Bird depth out of spec Bird C7-1
2812-2809     2812-2809 NONE Bird depth out of spec Bird C7-1
2694     2694 NONE Bird depth out of spec Bird C7-1
2682     2682 NONE Bird depth out of spec Bird C1-2
2668     2668 NONE Bird depth out of spec Bird C5-2
2611     2611 NONE Bird depth out of spec Bird C7-1
2504     2504 NONE Bird depth out of spec Bird C7-1
2470     2470 NONE Bird depth out of spec Bird C6-1
2435-2434     2435-2434 NONE Bird depth out of spec Bird C7-1
2403     2403 ALL Gun timing error Gun 3-2 error (ms) : -1.7
2384-2381     2384-2381 NONE Bird depth out of spec Bird C7-1
2357     2357 ALL Weather increasing Wind 30knt SW - Swell 1.5m SW - Noise 5.0µbar RMS
2334     2334 NONE Bird depth out of spec Bird C7-1
2329     2329 NONE Bird depth out of spec Bird C7-1
2295     2295 ALL Gun timing error Gun 3-2 error (ms) : -1.8
2192-2191     2192-2191 NONE Bird depth out of spec Bird C7-1
2164     2164 NONE Bird depth out of spec Bird C5-1
2143     2143 NONE Bird depth out of spec Bird C7-1
2141     2141 NONE Bird depth out of spec Bird C7-1
2136     2136 NONE Bird depth out of spec Bird C7-1
2069     2069 NONE Bird depth out of spec Bird C7-1
2059     2059 NONE Bird depth out of spec Bird C1-2
1970     1970 NONE Bird depth out of spec Bird C7-1
1965     1965 NONE Bird depth out of spec Bird C7-1
1963     1963 ALL Gun timing error Gun 3-2 error (ms) : -1.6
1737     1737 NONE Bird depth out of spec Bird C6-2
1706     1706 NONE Bird depth out of spec Bird C1-2
1651     1651 ALL Gun timing error Gun 3-2 error (ms) : -1.6
1616     1616 NONE Bird depth out of spec Bird C1-2
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL   NFH 1.4 using GSAP reference
2700     2700 ALL LGSP d/t high swell noise


 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 05:35:58utc 27-Oct-2001