ACQUISITION REPORT Sequence-0856
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170C
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A0001JXT856
  Preplot G01A0001XT
  Direction 227.0°
  SOL Date 16:27:42utc 26-May-2002
  EOL Date 17:42:51utc 26-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir SW
   Swell Height 2.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 55.0 57.0 [meters]
   Bottomspeed  4.5 4.5 [knots]
   Featherangle port -1.5 port -3.4 [deg]
   Cable noise 5.65 5.1 [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 8
2 PORT -345.0 -25.0 -6.0 3542.0 3 8

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)   1372 - 1371  
   SOL Dummy Record(s) 1370 - 1361 1370 - 1361 16:26:21 - 16:27:34
   FSP Start of Line 1360 1360 16:27:42
   MSP      
   LSP End of Line 800 800 17:42:51
   EOL Dummy Record(s)      
   EOL Noise Record(s)   799 - 798  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1360 - 800 1360 - 800 16:27:42-17:42:51 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1028mB. Low frequency strumming Str 6 channels 1841 - 1875.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1372 - 943 1372 - 943 2 10059  
  942 - 798 942 - 798 1 10060  
Stream 2
   Shot(s) Files Deck Reel Remark
  1372 - 943 1372 - 943 3 10059  
  942 - 798 942 - 798 4 10060  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL 337, 349, 791, 1553 Spiking Trace(s)  
ALL     ALL 353, 377, 744, 2764 Killed traces  
920-892     920-892 2648-2670 Bird depth out of spec Bird C8-5 max depth 10.4mtrs
917-875     917-875 2671-2695 Bird depth out of spec Bird C8-6 max depth 11.0mtrs
915-908     915-908 2627-2647 Bird depth out of spec Bird C8-4 max depth 10.0mtrs
903-874     903-874 2696-2715 Bird depth out of spec Bird C8-7 max depth 9.4mtrs
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL NONE Bird depth out of spec Bird C1-1 frequently deep avg 8.4Mtrs
1188-1173     1188-1173 NONE Bird depth out of spec Bird C1-2
893-862     893-862 NONE Bird depth out of spec Bird C8-8
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 18:13:24utc 26-May-2002