ACQUISITION REPORT Sequence-0242
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1248A242
  Preplot G01A1248
  Direction 198.0°
  SOL Date 02:28:19utc 29-Jan-2002
  EOL Date 06:07:42utc 29-Jan-2002
 Attributes:  
   Wind Force 12.0 [knots] Dir SSE
   Swell Height 1.0 [meters] Dir SSE
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 16.0 34.0 [meters]
   Bottomspeed  4.2 4.3 [knots]
   Featherangle port -26.0 port -4.2 [deg]
   Cable noise 52.1 5.8 [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)   2433 - 2432  
   SOL Dummy Record(s) 2431 - 2422 2431 - 2422 02:26:54 - 02:28:10
   FSP Start of Line 2421 2421 02:28:19
   MSP      
   LSP End of Line 911 911 06:07:42
   EOL Dummy Record(s)      
   EOL Noise Record(s)   910 - 910  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2421 - 911 2421 - 911 02:28:19-06:07:42 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m. Streamers still in bend on noise rec d/t shallows.    
   Recording QC ** Cable 1 NTBP D/T Parity Errors** Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1015mB, pressure now 1018mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Streamers still in bend on noise rec d/t shallows.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2433 - 2004 2433 - 2004 1 990  
  2003 - 1574 2003 - 1574 1 991  
  1573 - 1144 1573 - 1144 2 992  
  1143 - 911 1143 - 911 1 993  
Stream 2
   Shot(s) Files Deck Reel Remark
  2433 - 2004 2433 - 2004 3 990  
  2003 - 1574 2003 - 1574 4 991  
  1573 - 1144 1573 - 1144 3 992  
  1143 - 911 1143 - 911 4 993  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL-911 1255 Killed traces  
ALL     ALL-911 1855 Killed traces  
ALL     ALL 1495, 2307 Noisy Ch's  
ALL     ALL 1-368 Parity errors Edit Cable 1d/t parity errors
2056-2039     2056-2039 2651-2667 Streamer depth Bird 8-5 deep max 9.9 mtrs
2053-2046     2053-2046 2627-2643 Streamer depth Bird 8-4 deep max 9.2 mtrs
2008-1978     2008-1978 2651-2667 Streamer depth Bird 8-5 deep max 9.7 mtrs
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 369-383, 390, 737-752, 1105-1113, 1126, 1473-1485, 1487, 1489, 1499, 2209-2237, 2239, 2243, 2577-2593, 2597, 2601-2609, 2613, 2615, 2617, 2629-2630 Slope alarm > 5% of total line
2244     2244 ALL Gun timing error Gun 5-4 error (ms) : -1.2
2066-2054     2066-2054 2259-2275 Streamer depth Bird 7-4 deep max 8.7 mtrs
2014-1997     2014-1997 2627-2643 Streamer depth Bird 8-4 deep max 8.8 mtrs
2001-1975     2001-1975 2675-2691 Streamer depth Bird 8-6 deep max 9.5 mtrs (<5sp's for >9mtrs)
1960-1951     1960-1951 2259-2275 Streamer depth Bird 7-4 deep max 9.3 mtrs (<5sp's for >9mtrs)
1960-1943     1960-1943 2675-2691 Streamer depth Bird 8-6 shallow min 4.9 mtrs (<5sp,s for< 5mtrs)
1951-1940     1951-1940 2699-2715 Streamer depth Bird 8-7 shallow min 5.3 mtrs
1945-1934     1945-1934 2723-2739 Streamer depth Bird 8-8 shallow min 5.7 mtrs
1388     1388 ALL Gun Timing Error Gun 5-4 (1.7 ms)
1384     1384 ALL Gun Timing Error Gun 5-4 (1.8 ms)
1236     1236 ALL Gun Timing Error Gun 5-4 (-1.1 ms)
Comment
Shot(s)     File(s) Trace(s) Type Remark
2421     2421 NONE Bend Noise Bend noise observed mid cable at SOL d/t short run-in
2336     2336 NONE Bend Noise Bend noise now tail thid all cables, weakening
2320     2320 NONE Bend Noise Bend noise no longer seen


 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 06:24:22utc 29-Jan-2002