ACQUISITION REPORT Sequence-0414
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3856J414
  Preplot G01A3856
  Direction 18.0°
  SOL Date 09:04:21utc 06-May-2002
  EOL Date 12:28:42utc 06-May-2002
 Attributes:  
   Wind Force 11.0 [knots] Dir NW
   Swell Height 1.0 [meters] Dir NW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 64.0 56.6 [meters]
   Bottomspeed  3.8 4.3 [knots]
   Featherangle port -9.8 sb +3.7 [deg]
   Cable noise 0.0 5.6 [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)      
   SOL Dummy Record(s)      
   FSP Start of Line 1607 1607 09:04:21
   MSP      
   LSP End of Line 2945 2945 12:28:42
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4288 - 4289  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1607 - 2945 1607 - 2945 09:04:21-12:28:42 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1028mB. Minor amount of swell noise evident on stremaersStreamers 7 & 8 birds out of depth for SOL. Low frequency strumming Str 6 channels 1841 - 1875.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1607 - 2036 1607 - 2036 1 1754  
  2037 - 2466 2037 - 2466 2 1755  
  2467 - 2896 2467 - 2896 1 1756  
  2897 - 2948 2897 - 2948 2 1757  
Stream 2
   Shot(s) Files Deck Reel Remark
  1607 - 2036 1607 - 2036 4 1754  
  2037 - 2466 2037 - 2466 3 1755  
  2467 - 2896 2467 - 2896 4 1756  
  2897 - 2948 2897 - 2948 3 1757  

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, 1031, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
1607-1685     1607-1685 2307-2576 Bird depth out of spec Streamer 7 Birds C7-6 to C7-18
1607-1707     1607-1707 2577-2944 Bird depth out of spec All Streamer 8
2068-2189     2068-2189 1-145 Streamer noise Low frequency bend noise dt currents approx 50uB
2068-2189     2068-2189 369-514 Streamer noise Low frequency bend noise dt currents approx 50uB
2068-2189     2068-2189 737-882 Streamer noise Low frequency bend noise dt currents approx 50uB
2068-2189     2068-2189 1105-1250 Streamer noise Low frequency bend noise dt currents approx 50uB
2068-2189     2068-2189 1473-1618 Streamer noise Low frequency bend noise dt currents approx 50uB
2068-2189     2068-2189 1841-1986 Streamer noise Low frequency bend noise dt currents approx 50uB
2068-2189     2068-2189 2209-2354 Streamer noise Low frequency bend noise dt currents approx 50uB
2068-2189     2068-2189 2577-2722 Streamer noise Low frequency bend noise dt currents approx 50uB
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS test Fails PS test
ALL     ALL 1-13, 16, 369-384, 405, 1105-1113, 1121-1126, 1128-1135, 1147, 1484-1485, 1487, 1489, 1841-1856, 1860-1861, 1864, 2209-2226, 2229-2231, 2577, 2585-2588, 2591, 2602 Slope alarm > 5% of total line
1749-1758     1749-1758 99-115 Bird depth out of spec Bird C1-6
1758-1767     1758-1767 467-483 Bird depth out of spec Bird C2-6
1964     1964 ALL Gun timing error Gun 5-2 error (ms) : -1.6
1972     1972 ALL Gun timing error Gun 5-2 error (ms) : -1.6
2094-2156     2094-2156 1-5 Bird depth out of spec Bird C1-1 Intermittently deep
2397-2407     2397-2407 2627-2643 Bird depth out of spec Bird C8-4
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 12:43:26utc 06-May-2002