ACQUISITION REPORT Sequence-0068
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2640A068
  Preplot G01A2640
  Direction 198.0°
  SOL Date 08:38:38utc 23-Nov-2001
  EOL Date 12:53:21utc 23-Nov-2001
 Attributes:  
   Wind Force 15.0 [knots] Dir ENE
   Swell Height 2.0 [meters] Dir ENE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 43.0 53.0 [meters]
   Bottomspeed  4.75 4.7 [knots]
   Featherangle port -1.1 port -1.9 [deg]
   Cable noise 5.42 23.6 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]

Source Configuration
Source Position Inline Crossline Nominal Nom. Vol. Subarray Gun
Number   Offset [m] Offset [m] Depth [m] [inch ³] Count Count
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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)   3736 - 3735  
   SOL Dummy Record(s) 3734 - 3725 3734 - 3725 08:37:21 - 08:38:31
   FSP Start of Line 3724 3724 08:38:38
   MSP      
   LSP End of Line 1743 1743 12:53:21
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1742 - 1741  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3724 - 2350 3724 - 2350 08:38:38-11:34:33 Prime 16 Valid  
    2349 - 1743 2349 - 1743 11:34:40-12:53:21 Prime 0 Scratched Scratched d/t weather
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC LGSP 2350 D/T WEATHER. Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1004mB. Str 8 Bird 1 mask on External Header, constantly deep, 8.1m. Occ. burst of swell noise at SP 2500 and increasing to EOL.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3736 - 3307 3736 - 3307 1 272  
  3306 - 2877 3306 - 2877 2 273  
  2876 - 2447 2876 - 2447 1 274  
  2446 - 2017 2446 - 2017 2 275  
  2016 - 1741 2016 - 1741 1 276  
Stream 2
   Shot(s) Files Deck Reel Remark
  3736 - 3307 3736 - 3307 3 272  
  3306 - 2877 3306 - 2877 4 273  
  2876 - 2447 2876 - 2447 3 274  
  2446 - 2017 2446 - 2017 4 275  
  2016 - 1741 2016 - 1741 3 276  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 304, 1127 Noisy Trace(s)  
2275     2275 2220, 2236, 2252, 2268, 2284, 2300, 2316, 2332, 2348, 2364, 2380, 2396, 2412, 2428, 2444, 2460, 2476, 2492, 2508, 2524, 2540, 2556, 2572 Parity errors  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301 Fails Crossfeed test  
ALL     ALL 1191 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1-7, 9, 12, 369-374, 737-745, 748, 1105-1106, 1109, 1112, 1841-1845, 2209-2211, 2213-2214, 2216-2217 Slope alarm > 5% of total line
3334     3334 NONE Bird depth out of spec Bird C8-4
3135     3135 NONE Bird depth out of spec Bird C6-3
3132-3128     3132-3128 NONE Bird depth out of spec Bird C6-3
3089     3089 NONE Bird depth out of spec Bird C2-5
3046     3046 NONE Bird depth out of spec Bird C6-3
2965-2963     2965-2963 NONE Bird depth out of spec Bird C6-3
2959     2959 NONE Bird depth out of spec Bird C6-3
2956-2954     2956-2954 NONE Bird depth out of spec Bird C6-3
2952     2952 NONE Bird depth out of spec Bird C6-3
2938     2938 NONE Bird depth out of spec Bird C6-3
2936     2936 NONE Bird depth out of spec Bird C6-3
2934     2934 NONE Bird depth out of spec Bird C6-3
2639     2639 NONE Bird depth out of spec Bird C6-3
2637     2637 NONE Bird depth out of spec Bird C6-3
2634     2634 NONE Bird depth out of spec Bird C6-3
2500-2488     2500-2488 NONE Bird depth out of spec Bird C6-3
2500     2500 ALL Swell Noise occasional bursts of swell noise
2300     2300 ALL Swell Noise swell noise increasing, ~9µB
2140     2140 ALL Swell Noise swell noise ~12µB
1875-1872     1875-1872 NONE Bird depth out of spec Bird C6-3
1839     1839 NONE Bird depth out of spec Bird C7-3
1805     1805 NONE Bird depth out of spec Bird C2-4
1775     1775 NONE Bird depth out of spec Bird C6-3
1773     1773 NONE Bird depth out of spec Bird C6-3
1770-1769     1770-1769 NONE Bird depth out of spec Bird C6-3
1754     1754 NONE Bird depth out of spec Bird C2-4
1753     1753 NONE Bird depth out of spec Bird C2-7
1753-1752     1753-1752 NONE Bird depth out of spec Bird C6-4
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 18:59:26utc 23-Nov-2001