ACQUISITION REPORT Sequence-0397
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4368B397
  Preplot G01A4368
  Direction 18.0°
  SOL Date 15:58:32utc 02-May-2002
  EOL Date 21:49:22utc 02-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir SE
   Swell Height 1.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 99.8 44.0 [meters]
   Bottomspeed  4.7 4.3 [knots]
   Featherangle port -2.4 sb +2.1 [deg]
   Cable noise 13.1 7.07 [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)   1648 - 1649  
   SOL Dummy Record(s) 1650 - 1679 1650 - 1679 15:54:37 - 15:58:24
   FSP Start of Line 1680 1680 15:58:32
   MSP      
   LSP End of Line 4308 4308 21:49:22
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4309 - 4310  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1680 - 4308 1680 - 4308 15:58:32-21:49:22 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1036mB. Bend noise at SOL noise records. Occassional burst of swell noise present at record. Side swipes present at SP 2420-2980, Low frequency noise dt currents approx 20-40uB present on records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1648 - 2077 1648 - 2077 1 1694  
  2078 - 2507 2078 - 2507 2 1695  
  2508 - 2937 2508 - 2937 1 1696  
  2938 - 3367 2938 - 3367 1 1697  
  3368 - 3797 3368 - 3797 2 1698  
  3798 - 4227 3798 - 4227 1 1699  
  4228 - 4310 4228 - 4310 2 1700  
Stream 2
   Shot(s) Files Deck Reel Remark
  1648 - 2077 1648 - 2077 4 1694  
  2078 - 2507 2078 - 2507 3 1695  
  2508 - 2937 2508 - 2937 4 1696  
  2938 - 3367 2938 - 3367 3 1697  
  3368 - 3797 3368 - 3797 4 1698  
  3798 - 4227 3798 - 4227 3 1699  
  4228 - 4310 4228 - 4310 4 1700  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 2764, 1797, 1532 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744 Killed traces  
2957-2969     2957-2969 2651-2667 Bird depth out of spec Bird C8-5, max depth 10.1m
2966-2982     2966-2982 2283-2299 Bird depth out of spec Bird C7-5, max depth 9.5m
2982-3001     2982-3001 2259-2275 Bird depth out of spec Bird C7-4, max depth 10.0m
2993-3009     2993-3009 2283-2299 Bird depth out of spec Bird C7-5, max depth 9.4m
3002-3006     3002-3006 2627-2643 Bird depth out of spec Bird C8-4, max depth 9.5m
3012-3044     3012-3044 2675-2691 Bird depth out of spec Bird C8-6, max depth 10.4m
3016-3025     3016-3025 2651-2667 Bird depth out of spec Bird C8-5, max depth 9.4m
3177-3181     3177-3181 419-435 Bird depth out of spec Bird C2-4, max depth 9.3m
4253-4263     4253-4263 2675-2691 Bird depth out of spec Bird C8-4, max depth 10.1m
4254-4271     4254-4271 2259-2275 Bird depth out of spec Bird C7-4, max depth 10.1m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-14, 16-17, 20, 22, 369-385, 390, 405, 1105-1113, 1126, 1130-1132, 1134-1135, 1841-1853, 1855-1856, 2209-2220, 2222-2226, 2229, 2577-2578, 2582, 2584-2589, 2591, 2602 Slope alarm > 5% of total line
1864     1864 ALL Gun timing error Gun 5-2 error (ms) : -2.0
2169-2178     2169-2178 2603-2619 Bird depth out of spec Bird C8-3
2490-2710     2490-2710 ALL Streamer noise Low frequency noise dt currents approx 20-40uB
2970-2997     2970-2997 2651-2667 Bird depth out of spec Bird C8-5
2980-2997     2980-2997 2307-2323 Bird depth out of spec Bird C7-6
2984-3007     2984-3007 2675-2691 Bird depth out of spec Bird C8-6
3002-3015     3002-3015 2651-2667 Bird depth out of spec Bird C8-5
3018-3047     3018-3047 2699-2715 Bird depth out of spec Bird C8-7
3026-3042     3026-3042 2651-2667 Bird depth out of spec Bird C8-5
3030     3030 ALL Gun timing error Gun 5-2 error (ms) : -1.7
3160-3250     3160-3250 ALL Streamer noise Low frequency noise dt currents approx 20-40uB
3251     3251 ALL Gun timing error Gun 1-2 error (ms) : -1.6
3520-3531     3520-3531 2627-2643 Bird depth out of spec Bird C8-4
3780-3793     3780-3793 395-411 Bird depth out of spec Bird C2-3
3786-3797     3786-3797 419-435 Bird depth out of spec Bird C2-4
3788-3798     3788-3798 51-67 Bird depth out of spec Bird C1-4
3952-4000     3952-4000 ALL Streamer noise Low frequency noise dt currents approx 20-40uB
4034-4050     4034-4050 75-91 Bird depth out of spec Bird C1-5
4043-4053     4043-4053 99-115 Bird depth out of spec Bird C1-6
4087-4108     4087-4108 2259-2275 Bird depth out of spec Bird C7-4
4090-4106     4090-4106 2283-2299 Bird depth out of spec Bird C7-5
4102-4110     4102-4110 2675-2691 Bird depth out of spec Bird C8-4
4113-4125     4113-4125 2651-2667 Bird depth out of spec Bird C8-5
4114-4128     4114-4128 2675-2691 Bird depth out of spec Bird C8-6
4267-4285     4267-4285 2675-2691 Bird depth out of spec Bird C8-6
4268-4276     4268-4276 2283-2299 Bird depth out of spec Bird C7-5
4272-4282     4272-4282 2259-2275 Bird depth out of spec Bird C7-4
4273-4275     4273-4275 2651-2667 Bird depth out of spec Bird C8-5
4277-4282     4277-4282 2651-2667 Bird depth out of spec Bird C8-5
4279-4280     4279-4280 2283-2299 Bird depth out of spec Bird C7-5
4287-4299     4287-4299 2651-2667 Bird depth out of spec Bird C8-5
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 03:09:48utc 05-May-2002