ACQUISITION REPORT Sequence-0396
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3984J396
  Preplot G01A3984
  Direction 198.0°
  SOL Date 09:49:36utc 02-May-2002
  EOL Date 12:00:40utc 02-May-2002
 Attributes:  
   Wind Force 2.0 [knots] $(wind_dir)
   Swell Height 0.0 [meters] $(swell_dir)
   Propellor rpm 122 [avg]  
   Propellor pitch 87 [avg]  
       
  SOL EOL  
   Waterdepth 58.0 65.0 [meters]
   Bottomspeed  4.8 5.0 [knots]
   Featherangle port -1.7 port -2.7 [deg]
   Cable noise 5.1 0.0 [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)   2941 - 2940  
   SOL Dummy Record(s) 2939 - 2910 2939 - 2910 09:45:46 - 09:49:28
   FSP Start of Line 2909 2909 09:49:36
   MSP      
   LSP End of Line 1900 1900 12:00:40
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2909 - 1910 2909 - 1910 09:49:36-11:59:03 Prime 16 Valid Prime line - Line name incorrect
    1909 - 1900 1909 - 1900 11:59:13-12:00:40 Prime 0 Scratched NTBP due to no new coverage
 Remarks:      
   Navigation Streamer depth 7m. High frequency strumming Str 6 1841 - 1875    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1036mB. No EOL noise record. No swell noise on records    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2941 - 2512 2941 - 2512 2 1691  
  2511 - 2082 2511 - 2082 1 1692  
  2081 - 1900 2081 - 1900 2 1693  
Stream 2
   Shot(s) Files Deck Reel Remark
  2941 - 2512 2941 - 2512 3 1691  
  2511 - 2082 2511 - 2082 4 1692  
  2081 - 1900 2081 - 1900 3 1693  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476, 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1532, 1797, 2764 Spiking Trace(s)  
ALL     ALL 1857, 2827, 2871 Noisy Trace(s)  
ALL     ALL 744 Killed traces  
ALL     ALL 1316 Fails PS test  
2377-2341     2377-2341 51-67 Bird depth out of spec Bird C1-4 max depth 9.6m
2369-2354     2369-2354 23-78 Monowing wash Low frequency, high amplitude noise due to monowing wash
2367-2356     2367-2356 391-450 Monowing wash Low frequency, high amplitude noise due to monowing wash
2364-2343     2364-2343 419-435 Bird depth out of spec Bird C2-4 max depth 9.8m
2342-2338     2342-2338 75-91 Bird depth out of spec Bird C1-5
2335-2329     2335-2329 75-91 Bird depth out of spec Bird C1-5 max depth 9.2m
2332-2321     2332-2321 99-115 Bird depth out of spec Bird C1-6 max depth 10.1m
2271-2258     2271-2258 2259-2275 Bird depth out of spec Bird C7-4 max depth 10.2m
2219-2072     2219-2072 1-200 Streamer noise High amplitude Low frequency noise dt currents
2219-2072     2219-2072 369-568 Streamer noise High amplitude Low frequency noise dt currents
2219-2072     2219-2072 737-936 Streamer noise High amplitude Low frequency noise dt currents
2219-2072     2219-2072 1105-1304 Streamer noise High amplitude Low frequency noise dt currents
2219-2072     2219-2072 1473-1672 Streamer noise High amplitude Low frequency noise dt currents
2219-2072     2219-2072 1841-2040 Streamer noise High amplitude Low frequency noise dt currents
2219-2072     2219-2072 2209-2408 Streamer noise High amplitude Low frequency noise dt currents
2219-2072     2219-2072 2577-2576 Streamer noise High amplitude Low frequency noise dt currents
1923-1910     1923-1910 1-70 Streamer noise High amplitude Low frequency noise dt turn
1923-1910     1923-1910 369-438 Streamer noise High amplitude Low frequency noise dt turn
1923-1910     1923-1910 737-806 Streamer noise High amplitude Low frequency noise dt turn
1923-1910     1923-1910 1105-1174 Streamer noise High amplitude Low frequency noise dt turn
1923-1910     1923-1910 1473-1542 Streamer noise High amplitude Low frequency noise dt turn
1923-1910     1923-1910 1841-1910 Streamer noise High amplitude Low frequency noise dt turn
1923-1910     1923-1910 2209-2278 Streamer noise High amplitude Low frequency noise dt turn
1923-1910     1923-1910 2577-2646 Streamer noise High amplitude Low frequency noise dt turn
1912-1909     1912-1909 395-411 Bird depth out of spec Bird C2-3 max depth 9.5m
1912-1907     1912-1907 419-435 Bird depth out of spec Bird C2-4 max depth 10.0m
1909-1900     1909-1900 ALL NTBP NTBP due to no new coverage
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-17, 20, 22, 369-385, 390, 1105-1113, 1115-1117, 1121-1126, 1128-1135, 1481, 1484-1485, 1489, 1841-1856, 1860, 2209-2226, 2229, 2577-2588, 2602 Slope alarm > 5% of total line
2674-2642     2674-2642 2259-2275 Bird depth out of spec Bird C7-4
2373-2350     2373-2350 75-91 Bird depth out of spec Bird C1-5
2367-2357     2367-2357 443-459 Bird depth out of spec Bird C2-5
2344-2327     2344-2327 467-483 Bird depth out of spec Bird C2-6
2341-2331     2341-2331 443-459 Bird depth out of spec Bird C2-5
2321-2308     2321-2308 491-507 Bird depth out of spec Bird C2-7
2295-2284     2295-2284 2627-2643 Bird depth out of spec Bird C8-4
2282-2270     2282-2270 2283-2299 Bird depth out of spec Bird C7-5
2268-2252     2268-2252 2283-2299 Bird depth out of spec Bird C7-5
2228-2217     2228-2217 2259-2275 Bird depth out of spec Bird C7-4
2222-2203     2222-2203 2675-2691 Bird depth out of spec Bird C8-6
1919-1911     1919-1911 27-43 Bird depth out of spec Bird C1-3
1906-1900     1906-1900 419-435 Bird depth out of spec Bird C2-4
Comment
Shot(s)     File(s) Trace(s) Type Remark
1968     1968 ALL Line information Start turn 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 10:28:09utc 12-May-2002