ACQUISITION REPORT Sequence-0074
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2848A074
  Preplot G01A2848
  Direction 18.0°
  SOL Date 18:31:58utc 24-Nov-2001
  EOL Date 21:24:05utc 24-Nov-2001
 Attributes:  
   Wind Force 10.0 [knots] Dir SSE
   Swell Height 1.5 [meters] $(swell_dir)
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 53.0 46.0 [meters]
   Bottomspeed  4.8 5.0 [knots]
   Featherangle port -3.4 sb +1.3 [deg]
   Cable noise 8.9 5.18 [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)   1651 - 1652  
   SOL Dummy Record(s) 1653 - 1662 1653 - 1662 18:30:43 - 18:31:51
   FSP Start of Line 1663 1663 18:31:58
   MSP      
   LSP End of Line 3073 3073 21:24:05
   EOL Dummy Record(s) 3074 - 3076 3074 - 3076 21:24:12 - 21:24:27
   EOL Noise Record(s)   3077 - 3077  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1663 - 3073 1663 - 3073 18:31:58-21:24:05 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7m. SP and Preplot difference of 356 d/t navigation database. LGSP 3073 due to whale sighted.    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1007mB. Str 8 Bird 1 mask on External Header, occasionally deep, 8.1m.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1651 - 2080 1651 - 2080 1 290  
  2081 - 2510 2081 - 2510 1 291  
  2511 - 2940 2511 - 2940 1 292  
  2941 - 3077 2941 - 3077 1 293  
Stream 2
   Shot(s) Files Deck Reel Remark
  1651 - 2080 1651 - 2080 3 290  
  2081 - 2510 2081 - 2510 4 291  
  2511 - 2940 2511 - 2940 3 292  
  2941 - 3077 2941 - 3077 4 293  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2220 Killed traces  
ALL     ALL 304, 1127 Noisy Trace(s)  
1663-1922     1663-1922 2209-2224 Spiking Trace(s)  
1663-1922     1663-1922 2401-2415 Spiking Trace(s)  
1663-1922     1663-1922 2513-2527 Spiking Trace(s)  
1671     1671 ALL Gun timing error Gun 3-6 error (ms) : 12.4
2005     2005 2236, 2252, 2268, 2284, 2300, 2316, 2332, 2348, 2364, 2380, 2396, 2412, 2428, 2444, 2460, 2476, 2492, 2508, 2524, 2540, 2556, 2572 Parity errors  
2024     2024 2236, 2252, 2268, 2284, 2300, 2316, 2332, 2348, 2364, 2380, 2396, 2412, 2428, 2444, 2460, 2476, 2492, 2508, 2524, 2540, 2556, 2572 Parity errors  
2363     2363 2236, 2252, 2268, 2284, 2300, 2316, 2332, 2348, 2364, 2380, 2396, 2412, 2428, 2444, 2460, 2476, 2492, 2508, 2524, 2540, 2556, 2572 Parity errors  
2446     2446 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  
ALL     ALL 1191, 2164, 2806 Weak Traces Weak trace: 1191, 2164, 2806 more than -6 dB down
ALL     ALL 1-9, 11-12, 369-377, 379, 737-745, 748, 1105-1106, 1108-1109, 1112, 1841-1842, 1845, 2209-2211, 2213-2214, 2216-2217 Slope alarm > 5% of total line
2079     2079 NONE Bird depth out of spec Bird C6-3
2159-2177     2159-2177 NONE Bird depth out of spec Bird C7-3
2209     2209 NONE Bird depth out of spec Bird C6-3
2214-2215     2214-2215 NONE Bird depth out of spec Bird C6-3
2347     2347 NONE Bird depth out of spec Bird C7-1
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 22:53:55utc 24-Nov-2001