ACQUISITION REPORT Sequence-0114
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3408C114
  Preplot G01A3408
  Direction 18.0°
  SOL Date 05:17:53utc 09-Dec-2001
  EOL Date 10:51:42utc 09-Dec-2001
 Attributes:  
   Wind Force 12.0 [knots] Dir W
   Swell Height 1.0 [meters] Dir W
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 63.0 45.0 [meters]
   Bottomspeed  4.6 4.6 [knots]
   Featherangle port -5.3 port -0.8 [deg]
   Cable noise 5.82 18.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3387  

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)      
   SOL Dummy Record(s)      
   FSP Start of Line 1717 1717 05:17:53
   MSP      
   LSP End of Line 4181 4181 10:51:42
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1717 - 4181 1717 - 4181 05:17:53-10:51:42 Reshoot 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7. 0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017 mB, pressure now 1015 mB. Str 8 Bird 1 mask on External Header. Str7 Bird 17 intermitant communication.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1685 - 2114 1685 - 2114 1 464  
  2115 - 2544 2115 - 2544 2 465  
  2545 - 2974 2545 - 2974 2 466  
  2975 - 3404 2975 - 3404 1 467  
  3405 - 3834 3405 - 3834 2 468  
  3835 - 4162 3835 - 4162 2 469  
  4163 - 4183 4163 - 4183 2 470  
Stream 2
   Shot(s) Files Deck Reel Remark
  1685 - 2114 1685 - 2114 3 464  
  2115 - 2544 2115 - 2544 3 465  
  2545 - 2974 2545 - 2974 4 466  
  2975 - 3404 2975 - 3404 3 467  
  3405 - 3834 3405 - 3834 4 468  
  3835 - 4162 3835 - 4162 3 469  
  4163 - 4183 4163 - 4183 4 470  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1191, 2764, 2806 weak traces  
ALL     ALL 1948 killed traces  
ALL     ALL 839, 1657 spiking  
2504-2547     2504-2547 2220, 2236, 2252, 2268, 2284, 2300, 2316, 2332, 2348, 2364, 2380, 2396, 2412, 2428, 2444, 2460, 2476, 2492, 2508, 2524, 2540, 2556, 2572 Transmission line All channels on line 12 str 7 lost dt transmission line problem
2504-2547     2504-2547 2209, 2225, 2241, 2257, 2273, 2289, 2305, 2321, 2337, 2353, 2369, 2385, 2401, 2417, 2433, 2449, 2465, 2481, 2497, 2513, 2529, 2545, 2561 Transmission line All channels on line 1 str 7 lost dt transmission line problem
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2304 Fails Crossfeed  
ALL     ALL 2577-2581 Bird depth out of spec Bird C8-1 deep all line, max 8.6 m
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 often deep, max 8.1 m
ALL     ALL 1-12, 16, 369-380, 737-752, 755, 758, 763-764, 1105-1113, 1126, 1130, 1841, 1845-1846, 1848-1850, 1852, 1855-1856 Slope alarm > 5% of total line
2175     2175 ALL Gun Timing Error Gun 2-2 error (ms): -1.6
2219     2219 ALL Gun timing error Gun 2-2 error (ms) : -1.7
2877     2877 ALL Gun timing error Gun 2-2 error (ms) : -1.9
2929     2929 ALL Gun timing error Gun 2-2 error (ms) : -1.6
2931-2932     2931-2932 395-411 Bird depth out of spec Bird C2-3
2942     2942 419-435 Bird depth out of spec Bird C2-4
3193     3193 ALL Gun timing error Gun 2-2 error (ms) : -1.8
3756-3758     3756-3758 419-435 Bird depth out of spec Bird C2-4
3773-3775     3773-3775 51-67 Bird depth out of spec Bird C1-4
3783     3783 51-67 Bird depth out of spec Bird C1-4
3788-3796     3788-3796 395-411 Bird depth out of spec Bird C2-3
3791-3795     3791-3795 419-435 Bird depth out of spec Bird C2-4
3833-3835     3833-3835 51-67 Bird depth out of spec Bird C1-4
3848-3850     3848-3850 395-411 Bird depth out of spec Bird C2-3
3848-3855     3848-3855 419-435 Bird depth out of spec Bird C2-4
3852     3852 395-411 Bird depth out of spec Bird C2-3
3855-3860     3855-3860 51-67 Bird depth out of spec Bird C1-4
3864     3864 51-67 Bird depth out of spec Bird C1-4
3884-3907     3884-3907 51-67 Bird depth out of spec Bird C1-4
3972-3977     3972-3977 51-67 Bird depth out of spec Bird C1-4
Comment
Shot(s)     File(s) Trace(s) Type Remark
2505-4180     2505-4180 NONE Parity error Command Line
3390-3780     3390-3780 ALL Swell Noise Swell noise greater than 9uB, affecting 5-10% of traces
3781-4181     3781-4181 ALL Swell Noise swell noise greater than 11 uB, affecting 10 - 15 % of traces


 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 05:12:51utc 15-Dec-2001