ACQUISITION REPORT Sequence-0383
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3968J383
  Preplot G01A3968
  Direction 198.0°
  SOL Date 09:09:19utc 28-Apr-2002
  EOL Date 13:57:15utc 28-Apr-2002
 Attributes:  
   Wind Force 20.0 [knots] Dir E
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 48.3 61.9 [meters]
   Bottomspeed  4.7 3.9 [knots]
   Featherangle sb +1.2 sb +2.2 [deg]
   Cable noise 10.4 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
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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)      
   SOL Dummy Record(s) 6130 - 4173 723 - 1400 23:29:55 - 21:46:48
   FSP Start of Line 4172 1399 09:09:19
   MSP      
   LSP End of Line 1930 1930 13:57:15
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4203 - 4211  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4172 - 1930 1399 - 1930 09:09:19-13:57:15 Prime 16 Valid N T B P d/t swell noise
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1036mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. Trace edit ( NTBP ) SP 1976-1930 at firts 100 traces in ALL streamer d/t excessive bend noise ( 26,7 uB )    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4204 - 3775 4204 - 3775 1 1628  
  3774 - 3345 3774 - 3345 1 1629  
  3344 - 2915 3344 - 2915 1 1630  
  2914 - 2485 2914 - 2485 1 1631  
  2484 - 2055 2484 - 2055 1 1632  
  2054 - 1930 2054 - 1930 1 1633  
Stream 2
   Shot(s) Files Deck Reel Remark
  4204 - 3775 4204 - 3775 3 1628  
  3774 - 3345 3774 - 3345 4 1629  
  3344 - 2915 3344 - 2915 3 1630  
  2914 - 2485 2914 - 2485 4 1631  
  2484 - 2055 2484 - 2055 3 1632  
  2054 - 1930 2054 - 1930 4 1633  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1533, 2265 Spiking Trace(s)  
ALL     ALL 1476, 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 18572827, 2871 Noisy Trace(s)  
ALL     ALL 744 Killed traces  
2775     2775 ALL Gun Timing Error Gun 1-6 (12.3 ms)
1976-1930     1976-1930 1-100 Streamer noise Excessive bend noise ( 26.7 uB )
1976-1930     1976-1930 369-469 Streamer noise Excessive bend noise ( 26.7 uB )
1976-1930     1976-1930 737-837 Streamer noise Excessive bend noise ( 26.7 uB )
1976-1930     1976-1930 1105-1205 Streamer noise Excessive bend noise ( 26.7 uB )
1976-1930     1976-1930 1473-1573 Streamer noise Excessive bend noise ( 26.7 uB )
1976-1930     1976-1930 1841-1941 Streamer noise Excessive bend noise ( 26.7 uB )
1976-1930     1976-1930 2209-2309 Streamer noise Excessive bend noise ( 26.7 uB )
1976-1930     1976-1930 2577-2677 Streamer noise Excessive bend noise ( 26.7 uB )
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-13, 16, 369-374, 377-380, 1112-1113, 1126, 1130, 1841-1850, 1852, 1855, 2209-2220, 2222-2225, 2577, 2585-2588, 2602 Slope Alarm > 5% of total line
2878     2878 ALL Gun Timing Error Gun 6-4 (1.2 ms)
2874     2874 ALL Gun Timing Error Gun 6-4 (1.2 ms)
2388     2388 ALL Gun Timing Error Gun 6-4 (1.1 ms)
2228     2228 ALL Gun Timing Error Gun 5-2 (-1.6 ms)
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 19:27:01utc 28-Apr-2002