ACQUISITION REPORT Sequence-0420
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4128K420
  Preplot G01A4128
  Direction 198.0°
  SOL Date 12:09:01utc 08-May-2002
  EOL Date 13:56:46utc 08-May-2002
 Attributes:  
   Wind Force 0.0 [knots] $(wind_dir)
   Swell Height 1.0 [meters] Dir SSW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 71.0 [meters]
   Bottomspeed  5.0 5.2 [knots]
   Featherangle sb +5.4 port -7.7 [deg]
   Cable noise 8.22 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 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)   2632 - 2631  
   SOL Dummy Record(s) 2630 - 2601 2630 - 2601 12:05:23 - 12:08:54
   FSP Start of Line 2600 2600 12:09:01
   MSP      
   LSP End of Line 1740 1740 13:56:46
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1462 - 1461  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2600 - 1758 2600 - 1758 12:09:01-13:53:53 Infill 16 Valid  
    1757 - 1740 1757 - 1740 13:54:02-13:56:46 Infill 0 Scratched dt NAV
 Remarks:      
   Navigation Streamer depth 7m    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1024mB. Low frequency strumming Str 6 channels channels 1841 - 1875. SP 1822 start turning to port to avoid Rig. EOL noise NOT available. SP 1772-1740, firts 85 trace at each streamer NTBP d/t turn avoiding Rig    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2632 - 2203 2632 - 2203 2 1772  
  2202 - 1773 2202 - 1773 1 1773  
  1772 - 1461 1772 - 1461 2 1774  
Stream 2
   Shot(s) Files Deck Reel Remark
  2632 - 2203 2632 - 2203 3 1772  
  2202 - 1773 2202 - 1773 4 1773  
  1772 - 1461 1772 - 1461 3 1774  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 744, 2764 Killed traces  
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 1553, 791 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
2254-2248     2254-2248 2675-2691 Bird depth out of spec Bird C8-6 max depth 9.7m
2186-2150     2186-2150 2283-2299 Bird depth out of spec Bird C7-5 max depth 10.4m
2184-2152     2184-2152 2259-2275 Bird depth out of spec Bird C7-4 max depth 11.4m
2181-2176     2181-2176 2675-2691 Bird depth out of spec Bird C8-6 max depth 9.4m
2180-2176     2180-2176 2235-2251 Bird depth out of spec Bird C7-3 max depth 9.4m
2180-2174     2180-2174 2627-2643 Bird depth out of spec Bird C8-4 max depth 11.4m
2174-2155     2174-2155 2603-2662 Monowing wash Low frequency, high amplitude noise due to monowing wash
2170-2163     2170-2163 2651-2667 Bird depth out of spec Bird C8-5 max depth 10.6m
2166-2154     2166-2154 2627-2643 Bird depth out of spec Bird C8-4 max depth 10.8m
2160-2150     2160-2150 2307-2323 Bird depth out of spec Bird C7-6 max depth 9.8m
2155-2127     2155-2127 2675-2691 Bird depth out of spec Bird C8-6 max depth 9.6m
2149-2136     2149-2136 2651-2667 Bird depth out of spec Bird C8-5 max depth 9.2m
2099-2090     2099-2090 907-923 Bird depth out of spec Bird C3-9 shallow 4.6m
1772-1740     1772-1740 1-85 Streamer noise Bend noise d/t turning
1772-1740     1772-1740 369-454 Streamer noise Bend noise d/t turning
1772-1740     1772-1740 737-822 Streamer noise Bend noise d/t turning
1772-1740     1772-1740 1105-1190 Streamer noise Bend noise d/t turning
1772-1740     1772-1740 1473-1558 Streamer noise Bend noise d/t turning
1772-1740     1772-1740 1841-1926 Streamer noise Bend noise d/t turning
1772-1740     1772-1740 2209-2294 Streamer noise Bend noise d/t turning
1772-1740     1772-1740 2577-2662 Streamer noise Bend noise d/t turning
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 Fails PS Fails PS test
2418-2408     2418-2408 2259-2275 Bird depth out of spec Bird C7-4
2366-2346     2366-2346 2259-2275 Bird depth out of spec Bird C7-4
2309-2299     2309-2299 883-889 Bird depth out of spec Bird C3-8
2288-2277     2288-2277 539-555 Bird depth out of spec Bird C2-9
2273     2273 ALL Gun timing error Gun 2-1 error (ms) : -1.6
2185-2161     2185-2161 2307-2323 Bird depth out of spec Bird C7-6
2162-2150     2162-2150 2651-2667 Bird depth out of spec Bird C8-5
2153-2137     2153-2137 2627-2643 Bird depth out of spec Bird C8-4
2151-2129     2151-2129 2259-2275 Bird depth out of spec Bird C7-4
2107-2089     2107-2089 883-889 Bird depth out of spec Bird C3-8
2091-2084     2091-2084 931-947 Bird depth out of spec Bird C3-10
2074-2053     2074-2053 2651-2667 Bird depth out of spec Bird C8-5
2072-2060     2072-2060 2627-2643 Bird depth out of spec Bird C8-4
2068-2042     2068-2042 2675-2691 Bird depth out of spec Bird C8-6
2067-2048     2067-2048 2259-2275 Bird depth out of spec Bird C7-4
2063-2048     2063-2048 2283-2299 Bird depth out of spec Bird C7-5
1939-1927     1939-1927 2627-2643 Bird depth out of spec Bird C8-4
Comment
Shot(s)     File(s) Trace(s) Type Remark
1822     1822 ALL Line Information Port turn to avoid rig


 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 21:10:58utc 08-May-2002