ACQUISITION REPORT Sequence-0272
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1872B272
  Preplot G01A1872
  Direction 198.0°
  SOL Date 12:33:45utc 13-Feb-2002
  EOL Date 14:32:52utc 13-Feb-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir ENE
   Swell Height 1.0 [meters] Dir NE
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 40.0 42.0 [meters]
   Bottomspeed  4.8 4.7 [knots]
   Featherangle sb +7.5 sb +2.3 [deg]
   Cable noise 6.4 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)   2511 - 2510  
   SOL Dummy Record(s) 2509 - 2480 2509 - 2480 12:29:59 - 12:33:37
   FSP Start of Line 2479 2479 12:33:45
   MSP      
   LSP End of Line 1547 1547 14:32:52
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1546 - 1545  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2479 - 1547 2479 - 1547 12:33:45-14:32:52 Reshoot 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1015mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. Strong ground roll noise present.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2511 - 2082 2511 - 2082 2 1093  
  2081 - 1652 2081 - 1652 1 1094  
  1651 - 1546 1651 - 1546 2 1095  
Stream 2
   Shot(s) Files Deck Reel Remark
  2511 - 2082 2511 - 2082 4 1093  
  2081 - 1652 2081 - 1652 4 1094  
  1651 - 1546 1651 - 1546 3 1095  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 2662 Killed traces  
ALL     ALL 1476 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1657, 2307, 2641, 2782 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Crossfeed Fails crossfeed test
ALL     ALL 369, 737-738, 741, 744, 1105-1113, 1841-1850, 2209-2211, 2213-2214, 2217-2218 Slope alarm > 5% of total line
2436     2436 ALL Gun timing error Gun 5-4 error (ms) : -1.3
2370-2358     2370-2358 2651-2667 Bird depth out of spec Bird C8-5
2236     2236 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2172     2172 ALL Gun timing error Gun 5-4 error (ms) : -1.1
1956     1956 ALL Gun timing error Gun 5-4 error (ms) : -1.2
1948-1928     1948-1928 2011-2027 Bird depth out of spec Bird C6-9
1620     1620 ALL Gun timing error Gun 5-4 error (ms) : 1.2
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 23:58:41utc 13-Feb-2002