ACQUISITION REPORT Sequence-0447
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4112B447
  Preplot G01A4112
  Direction 18.0°
  SOL Date 03:18:16utc 15-May-2002
  EOL Date 04:57:29utc 15-May-2002
 Attributes:  
   Wind Force 27.0 [knots] Dir NNE
   Swell Height 1.5 [meters] Dir NE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 72.0 66.0 [meters]
   Bottomspeed  3.3 3.5 [knots]
   Featherangle port -7.6 sb +0.2 [deg]
   Cable noise 6.3 5.97 [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)   1545 - 1546  
   SOL Dummy Record(s) 1547 - 1576 1547 - 1576 03:12:46 - 03:18:05
   FSP Start of Line 1577 1577 03:18:16
   MSP      
   LSP End of Line 2130 2130 04:57:29
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4299 - 4300  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1577 - 2130 1577 - 2130 03:18:16-04:57:29 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.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1545 - 1974 1545 - 1974 2 1838  
  1975 - 4300 1975 - 4300 1 1839  
Stream 2
   Shot(s) Files Deck Reel Remark
  1545 - 1974 1545 - 1974 4 1838  
  1975 - 4300 1975 - 4300 3 1839  

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, 1553, 791 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
1889-1918     1889-1918 2577-2687 Streamer noise Low frequency noise dt bend approx 40uB
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
1879-1890     1879-1890 2259-2275 Bird depth out of spec Bird C7-4
1881-1910     1881-1910 1-95 Streamer noise Low frequency noise dt bend approx 20uB
1881-1910     1881-1910 369-464 Streamer noise Low frequency noise dt bend approx 20uB
1881-1910     1881-1910 737-832 Streamer noise Low frequency noise dt bend approx 20uB
1881-1910     1881-1910 1105-1200 Streamer noise Low frequency noise dt bend approx 20uB
1881-1910     1881-1910 1473-1568 Streamer noise Low frequency noise dt bend approx 20uB
1881-1910     1881-1910 1841-1936 Streamer noise Low frequency noise dt bend approx 20uB
1881-1886     1881-1886 2577-2672 Streamer noise Low frequency noise dt bend approx 20uB
1886-1898     1886-1898 51-67 Bird depth out of spec Bird C1-4
1887-1897     1887-1897 27-43 Bird depth out of spec Bird C1-3
1890-1901     1890-1901 395-411 Bird depth out of spec Bird C2-3
1891-1901     1891-1901 419-435 Bird depth out of spec Bird C2-4
1927-1962     1927-1962 2577-2670 Streamer noise Low frequency noise dt bend approx 20uB
Comment
Shot(s)     File(s) Trace(s) Type Remark
1840     1840 ALL Line Information Turning to Port 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 05:26:34utc 15-May-2002