ACQUISITION REPORT Sequence-0406
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4080J406
  Preplot G01A4080
  Direction 198.0°
  SOL Date 16:58:29utc 04-May-2002
  EOL Date 19:36:01utc 04-May-2002
 Attributes:  
   Wind Force 5.0 [knots] Dir NE
   Swell Height 0.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 70.0 [meters]
   Bottomspeed  4.5 4.8 [knots]
   Featherangle port -1.4 sb +12.8 [deg]
   Cable noise 5.4 5.2 [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)   2682 - 2681  
   SOL Dummy Record(s) 2680 - 2651 2680 - 2651 16:54:27 - 16:58:21
   FSP Start of Line 2650 2650 16:58:29
   MSP      
   LSP End of Line 1444 1444 19:36:01
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1443 - 1443  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2650 - 1444 2650 - 1444 16:58:29-19:36:01 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1029mB. Side swipes present at record. Low frequency strumming Str 6 channels 1841 - 1875. Occassional burst of swell noise present on records,approx 20 µB, affecting 3-5 % of traces. Low frequency noise dt currents approx 40-60 uB.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2682 - 2253 2682 - 2253 1 1727  
  2252 - 1823 2252 - 1823 2 1728  
  1822 - 1444 1822 - 1444 1 1729  
Stream 2
   Shot(s) Files Deck Reel Remark
  2682 - 2253 2682 - 2253 3 1727  
  2252 - 1823 2252 - 1823 4 1728  
  1822 - 1444 1822 - 1444 3 1729  

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, 1532, 1553, 1031 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
2613-2602     2613-2602 111-154 Monowing wash Low frequency, high amplitude noise due to monowing wash
2571-2547     2571-2547 38-114 Monowing wash Low frequency, high amplitude noise due to monowing wash
2491-2484     2491-2484 59-78 Monowing wash Low frequency, high amplitude noise due to monowing wash
2405     2405 823-831 Streamer noise something hit streamer #3 and travelling down streamer
2396-2390     2396-2390 838-849 Streamer noise something hit streamer #3 and travelling down streamer
2385-2382     2385-2382 846-864 Streamer noise something hit streamer #3 and travelling down streamer
2378-2377     2378-2377 858-867 Streamer noise something hit streamer #3 and travelling down streamer
2371-2368     2371-2368 867-874 Streamer noise something hit streamer #3 and travelling down streamer
2348-2346     2348-2346 900-909 Streamer noise something hit streamer #3 and travelling down streamer
2342-2341     2342-2341 910-916 Streamer noise something hit streamer #3 and travelling down streamer
2331-2328     2331-2328 919-929 Streamer noise something hit streamer #3 and travelling down streamer
2323-2321     2323-2321 927-937 Streamer noise something hit streamer #3 and travelling down streamer
2298-2297     2298-2297 967-973 Streamer noise something hit streamer #3 and travelling down streamer
2277     2277 1002-1008 Streamer noise something hit streamer #3 and travelling down streamer
2270     2270 1019-1025 Streamer noise something hit streamer #3 and travelling down streamer
1995-1980     1995-1980 443-459 Bird depth out of spec Bird C2-5, max depth 9.5m
1802-1734     1802-1734 1-130 Streamer noise Low frequency noise dt currents approx 40-60 uB
1802-1703     1802-1703 369-499 Streamer noise Low frequency noise dt currents approx 40-60 uB
1802-1707     1802-1707 1105-1235 Streamer noise Low frequency noise dt currents approx 40-60 uB
1802-1733     1802-1733 1473-1560 Streamer noise Low frequency noise dt currents approx 40-60 uB
1802-1732     1802-1732 1841-1931 Streamer noise Low frequency noise dt currents approx 40-60 uB
1802-1725     1802-1725 2209-2300 Streamer noise Low frequency noise dt currents approx 40-60 uB
1802-1735     1802-1735 2577-2660 Streamer noise Low frequency noise dt currents approx 40-60 uB
1734-1685     1734-1685 2661-2752 Streamer noise Low frequency noise dt currents approx 40-60 uB
1733-1689     1733-1689 131-180 Streamer noise Low frequency noise dt currents approx 40-60 uB
1732-1646     1732-1646 181-230 Streamer noise Low frequency noise dt currents approx 40-60 uB
1732-1690     1732-1690 1561-1637 Streamer noise Low frequency noise dt currents approx 40-60 uB
1731-1689     1731-1689 1841-1931 Streamer noise Low frequency noise dt currents approx 40-60 uB
1724-1692     1724-1692 2301-2365 Streamer noise Low frequency noise dt currents approx 40-60 uB
1706-1677     1706-1677 1236-1285 Streamer noise Low frequency noise dt currents approx 40-60 uB
1702-1677     1702-1677 500-549 Streamer noise Low frequency noise dt currents approx 40-60 uB
1702-1668     1702-1668 868-917 Streamer noise Low frequency noise dt currents approx 40-60 uB
1691-1656     1691-1656 2366-2433 Streamer noise Low frequency noise dt currents approx 40-60 uB
1689-1649     1689-1649 1638-1712 Streamer noise Low frequency noise dt currents approx 40-60 uB
1688-1639     1688-1639 2004-2069 Streamer noise Low frequency noise dt currents approx 40-60 uB
1676-1627     1676-1627 550-616 Streamer noise Low frequency noise dt currents approx 40-60 uB
1676-1646     1676-1646 1286-1341 Streamer noise Low frequency noise dt currents approx 40-60 uB
1667-1639     1667-1639 918-967 Streamer noise Low frequency noise dt currents approx 40-60 uB
1634-1647     1634-1647 2753-2820 Streamer noise Low frequency noise dt currents approx 40-60 uB
1602-1703     1602-1703 737-867 Streamer noise Low frequency noise dt currents approx 40-60 uB
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-13, 16, 369-381, 383, 1105-1106, 1109-1113, 1115, 1121-1123, 1125-1126, 1128-1135, 1484, 1489, 1841-1850, 1852-1853, 1855-1856, 2209-2220, 2222-2226, 2229, 2577-2578, 2584-2589, 2591-2592, 2602 Slope alarm > 5% of total line
ALL     ALL 1316 Fails PS  
2550-2540     2550-2540 75-91 Bird depth out of spec Bird C1-5
2491-2482     2491-2482 75-91 Bird depth out of spec Bird C1-5
2382-2367     2382-2367 99-115 Bird depth out of spec Bird C1-6
2028-2016     2028-2016 443-459 Bird depth out of spec Bird C2-5
2018-2004     2018-2004 51-67 Bird depth out of spec Bird C1-4
1977     1977 ALL Gun timing error Gun 2-1 error (ms) : -1.6
1894-1879     1894-1879 467-483 Bird depth out of spec Bird C2-6
1743-1735     1743-1735 1131-1147 Bird depth out of spec Bird C4-3
1733-1724     1733-1724 1131-1147 Bird depth out of spec Bird C4-3
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 03:12:20utc 05-May-2002