ACQUISITION REPORT Sequence-0400
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4416A400
  Preplot G01A4416
  Direction 18.0°
  SOL Date 09:06:01utc 03-May-2002
  EOL Date 15:23:27utc 03-May-2002
 Attributes:  
   Wind Force 2.0 [knots] $(wind_dir)
   Swell Height 1.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 111.0 48.0 [meters]
   Bottomspeed  4.2 4.1 [knots]
   Featherangle port -0.5 sb +1.0 [deg]
   Cable noise 5.0 8.6 [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)   1667 - 1668  
   SOL Dummy Record(s) 1669 - 1698 1669 - 1698 09:01:44 - 09:05:52
   FSP Start of Line 1699 1699 09:06:01
   MSP      
   LSP End of Line 4310 4310 15:23:27
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4311 - 4312  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1699 - 4310 1699 - 4310 09:06:01-15:23:27 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1031mB. Low frequency strumming Str 6 channels 1841 - 1875. Occassional burst of swell noise present on records, approx 2-3 µB, affecting 5 % of traces.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1667 - 2096 1667 - 2096 2 1707  
  2097 - 2526 2097 - 2526 1 1708  
  2527 - 2956 2527 - 2956 2 1709  
  2957 - 3386 2957 - 3386 1 1710  
  3387 - 3816 3387 - 3816 2 1711  
  3817 - 4246 3817 - 4246 1 1712  
  4247 - 4312 4247 - 4312 2 1713  
Stream 2
   Shot(s) Files Deck Reel Remark
  1667 - 2096 1667 - 2096 3 1707  
  2097 - 2526 2097 - 2526 4 1708  
  2527 - 2956 2527 - 2956 3 1709  
  2957 - 3386 2957 - 3386 4 1710  
  3387 - 3816 3387 - 3816 3 1711  
  3817 - 4246 3817 - 4246 4 1712  
  4247 - 4312 4247 - 4312 3 1713  

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 1532, 1797 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
3442-3454     3442-3454 419-435 Bird depth out of spec Bird C2-4, max depth 10.3m
3446-3455     3446-3455 51-67 Bird depth out of spec Bird C1-4, max depth 10m
3447-3460     3447-3460 443-459 Bird depth out of spec Bird C2-5, max depth 9.9m
3449-3451     3449-3451 75-91 Bird depth out of spec Bird C1-5, max depth 9.5m
3536-3549     3536-3549 2627-2643 Bird depth out of spec Bird C8-4, max depth 10.1m
3538-3546     3538-3546 2651-2667 Bird depth out of spec Bird C8-5, max depth 9.8m
3737-3748     3737-3748 2627-2643 Bird depth out of spec Bird C8-4, max depth 10m
3739-3745     3739-3745 2259-2275 Bird depth out of spec Bird C7-4, max depth 9.9m
3884-3897     3884-3897 2651-2667 Bird depth out of spec Bird C8-5, max depth 9.8m
3890-3908     3890-3908 2675-2691 Bird depth out of spec Bird C8-6, max depth 10.1m
3915-3930     3915-3930 2283-2299 Bird depth out of spec Bird C7-5, max depth 9.9m
3927-3949     3927-3949 2675-2691 Bird depth out of spec Bird C8-6, max depth 10.5m
3940-3975     3940-3975 2605-2660 Monowing wash Low frequency, high amplitude noise due to monowing wash
3945-3956     3945-3956 2699-2715 Bird depth out of spec Bird C8-7, max depth 9.7m
3951-3972     3951-3972 2675-2691 Bird depth out of spec Bird C8-6, max depth 10m
4220-4250     4220-4250 49-100 Monowing wash Low frequency, high amplitude noise due to monowing wash
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
ALL     ALL 1-13, 16, 369-380, 383, 405, 1105-1113, 1126, 1130-1132, 1134-1135, 1489, 1841-1850, 1852-1853, 1855-1856, 2209-2220, 2222-2226, 2229, 2577, 2584-2589, 2591, 2602 Slope alarm > 5% of total line
1939-1954     1939-1954 419-435 Bird depth out of spec Bird C2-4
1943-1956     1943-1956 443-459 Bird depth out of spec Bird C2-5
2146-2156     2146-2156 2259-2275 Bird depth out of spec Bird C7-4
2296-2463     2296-2463 ALL Rig Noise From behind. Level less then 5 uBar. Moveout 1000 ms/km
3213-3241     3213-3241 1131-1147 Bird depth out of spec Bird C4-3
3243-3253     3243-3253 1131-1147 Bird depth out of spec Bird C4-3
3536-3557     3536-3557 2259-2275 Bird depth out of spec Bird C7-4
3744-3760     3744-3760 2331-2347 Bird depth out of spec Bird C7-7
3746-3758     3746-3758 2259-2275 Bird depth out of spec Bird C7-4
3749-3761     3749-3761 2627-2643 Bird depth out of spec Bird C8-4
3749-3762     3749-3762 2675-2691 Bird depth out of spec Bird C8-6
3751-3760     3751-3760 2307-2323 Bird depth out of spec Bird C7-6
3759-3770     3759-3770 2355-2371 Bird depth out of spec Bird C7-8
3857     3857 ALL Streamer noise Low frequency noise dt currents approx 20-40 uB
3865-3873     3865-3873 2699-2715 Bird depth out of spec Bird C8-7
3878-3883     3878-3883 2651-2667 Bird depth out of spec Bird C8-5
3901-3917     3901-3917 2699-2715 Bird depth out of spec Bird C8-7
3907-3913     3907-3913 2259-2275 Bird depth out of spec Bird C7-4
3931-3939     3931-3939 2307-2323 Bird depth out of spec Bird C7-6, max depth 10.6m
3957-3977     3957-3977 2699-2715 Bird depth out of spec Bird C8-7
3973-3982     3973-3982 2307-2323 Bird depth out of spec Bird C7-6
3978-3986     3978-3986 2283-2299 Bird depth out of spec Bird C7-5
3984-3992     3984-3992 2675-2691 Bird depth out of spec Bird C8-6
4041-4050     4041-4050 2675-2691 Bird depth out of spec Bird C8-6
4056-4073     4056-4073 2283-2299 Bird depth out of spec Bird C7-5
4067-4075     4067-4075 2235-2251 Bird depth out of spec Bird C7-3
4071-4080     4071-4080 2675-2691 Bird depth out of spec Bird C8-6
4076-4088     4076-4088 2283-2299 Bird depth out of spec Bird C7-5
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 03:10:21utc 05-May-2002