ACQUISITION REPORT Sequence-0448
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4288B448
  Preplot G01A4288
  Direction 198.0°
  SOL Date 07:21:29utc 15-May-2002
  EOL Date 08:25:26utc 15-May-2002
 Attributes:  
   Wind Force 12.0 [knots] Dir NE
   Swell Height 2.0 [meters] Dir ENE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 84.9 92.0 [meters]
   Bottomspeed  4.86 5.0 [knots]
   Featherangle sb +2.9 port -1.9 [deg]
   Cable noise 7.0 28.0 [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)   2097 - 2096  
   SOL Dummy Record(s) 2095 - 2066 2095 - 2066 07:17:46 - 07:21:22
   FSP Start of Line 2065 2065 07:21:29
   MSP      
   LSP End of Line 1580 1580 08:25:26
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1526 - 1525  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2065 - 2000 2065 - 2000 07:21:29-07:29:39 Infill 16 Valid  
    1999 - 1580 1999 - 1580 07:29:46-08:25:26 Reshoot 16 Valid  
 Remarks:      
   Navigation streamer depth 7m    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1019mB. Low frequency strumming Str 6 channels 1841 - 1875. NFH 2-2 dead. Increasing swell noise present on records,approx 5-15 µB, affecting 5-10 % of traces.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2097 - 1668 2097 - 1668 2 1840  
  1667 - 1525 1667 - 1525 1 1841  
Stream 2
   Shot(s) Files Deck Reel Remark
  2097 - 1668 2097 - 1668 4 1840  
  1667 - 1525 1667 - 1525 3 1841  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 791, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 377, 744, 2764 Killed traces  
1999     1999 ALL Gun timing error Gun 2-1 error (ms) : -2.0
1791-1778     1791-1778 1075-1091 Bird depth out of spec Bird C3-16, Max depth 9.8m
1650-1580     1650-1580 1-90 Streamer noise Low frequency noise dt turn
1650-1580     1650-1580 2577-2667 Streamer noise Low frequency noise dt turn
1650-1580     1650-1580 2209-2299 Streamer noise Low frequency noise dt turn
1650-1580     1650-1580 1841-1931 Streamer noise Low frequency noise dt turn
1650-1580     1650-1580 1473-1563 Streamer noise Low frequency noise dt turn
1650-1580     1650-1580 1105-1195 Streamer noise Low frequency noise dt turn
1650-1580     1650-1580 737-827 Streamer noise Low frequency noise dt turn
1650-1580     1650-1580 369-459 Streamer noise Low frequency noise dt turn
1593-1585     1593-1585 2563-2576 Bird depth out of spec Bird C7-17, max depth 8.9m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
1927-1910     1927-1910 2259-2275 Bird depth out of spec Bird C7-4
1919-1905     1919-1905 1-5 Bird depth out of spec Bird C1-1
1824-1811     1824-1811 1-5 Bird depth out of spec Bird C1-1
1807-1792     1807-1792 1075-1091 Bird depth out of spec Bird C3-16
1802-1783     1802-1783 563-579 Bird depth out of spec Bird C2-10
1784     1784 ALL Swell Noise Swell increasing >10 uB, affecting 5% of traces
1778-1767     1778-1767 2259-2275 Bird depth out of spec Bird C7-4
1775-1753     1775-1753 2675-2691 Bird depth out of spec Bird C8-6
1775     1775 ALL Gun Timing Error Gun 2-1 error (ms) : - 1.8
1615-1602     1615-1602 2931-2944 Bird depth out of spec Bird C8-17
1607-1594     1607-1594 2563-2576 Bird depth out of spec Bird C7-17
1599-1583     1599-1583 1-5 Bird depth out of spec Bird C1-1
Comment
Shot(s)     File(s) Trace(s) Type Remark
1672     1672 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 09:53:47utc 15-May-2002