ACQUISITION REPORT Sequence-0018
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2784B018
  Preplot G01A2784
  Direction 18.0°
  SOL Date 08:58:59utc 25-Oct-2001
  EOL Date 13:00:10utc 25-Oct-2001
 Attributes:  
   Wind Force 5.0 [knots] Dir NNW
   Swell Height 0.4 [meters] Dir NNW
   Propellor rpm 122 [avg]  
   Propellor pitch 97 [avg]  
       
  SOL EOL  
   Waterdepth 54.0 42.0 [meters]
   Bottomspeed  4.8 5.0 [knots]
   Featherangle port -0.8 sb +10.0 [deg]
   Cable noise 6.23 6.33 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3347 3347  

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 2.0 0001 0001-0001 0001 0001 - 0001 0.00
2 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
3 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
4 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0001 0001-0001 0001 0001 - 0001 0.00
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0001-0368 0368 0001 - 0368 5.60
6 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0369-0736 0368 0369 - 0736 5.60
7 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0737-1104 0368 0737 - 1104 5.60
8 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1105-1472 0368 1105 - 1472 5.60
9 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1473-1840 0368 1473 - 1840 5.60
10 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1841-2208 0368 1841 - 2208 5.60
11 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2209-2576 0368 2209 - 2576 5.60
12 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)   1980 - 1981  
   SOL Dummy Record(s) 1982 - 1991 1982 - 1991 08:57:42 - 08:58:51
   FSP Start of Line 1992 1992 08:58:59
   MSP      
   LSP End of Line 3940 3940 13:00:10
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3941 - 3942  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1992 - 3940 1992 - 3940 08:58:59-13:00:10 Reshoot 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1005mB. Str 8 Bird 1 mask on External Header, constantly deep, 8.1m. Erratic reading on pressure transducer on array 2.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1980 - 2409 1980 - 2409 1 73  
  2410 - 2839 2410 - 2839 2 74  
  2840 - 3269 2840 - 3269 1 75  
  3270 - 3699 3270 - 3699 2 76  
  3700 - 3942 3700 - 3942 1 77  
Stream 2
   Shot(s) Files Deck Reel Remark
  1980 - 2409 1980 - 2409 3 73  
  2410 - 2839 2410 - 2839 4 74  
  2840 - 3269 2840 - 3269 4 75  
  3270 - 3699 3270 - 3699 3 76  
  3700 - 3942 3700 - 3942 4 77  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1191 Killed traces  
ALL     ALL- 1948 Killed traces  
ALL     ALL- 2764 Killed traces  
ALL     ALL- 2806 Killed traces  
ALL     ALL 304, 1127, 2775 Noisy Trace(s)  
2153-2156     2153-2156 ALL Bad shot  
3342     3342 2371 Spiking Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 6, 9, 369, 371, 377, 737-742, 744-749, 751-752, 1105-1113, 1126, 1130, 2209-2210 Slope alarm > 5% of total line
1999     1999 NONE Bird depth out of spec Bird C7-1
2040     2040 NONE Bird depth out of spec Bird C7-1
2094     2094 NONE Bird depth out of spec Bird C7-1
2097     2097 NONE Bird depth out of spec Bird C7-1
2101     2101 NONE Bird depth out of spec Bird C7-1
2118     2118 NONE Bird depth out of spec Bird C7-1
2125     2125 NONE Bird depth out of spec Bird C7-1
2161     2161 NONE Bird depth out of spec Bird C7-1
2166     2166 NONE Bird depth out of spec Bird C7-1
2168     2168 NONE Bird depth out of spec Bird C5-1
2171     2171 NONE Bird depth out of spec Bird C7-1
2202-2204     2202-2204 NONE Bird depth out of spec Bird C2-5
2300     2300 NONE Bird depth out of spec Bird C7-1
2305     2305 NONE Bird depth out of spec Bird C7-1
2319     2319 NONE Bird depth out of spec Bird C7-1
2331     2331 NONE Bird depth out of spec Bird C7-1
2533     2533 NONE Bird depth out of spec Bird C6-3
2590     2590 NONE Bird depth out of spec Bird C7-1
2592     2592 NONE Bird depth out of spec Bird C7-1
2620     2620 NONE Bird depth out of spec Bird C7-1
2621     2621 ALL Gun timing error Gun 3-2 error (ms) : -1.6
2903     2903 ALL Gun timing error Gun 3-2 error (ms) : -1.6
2993     2993 NONE Bird depth out of spec Bird C7-1
3119     3119 ALL Gun timing error Gun 3-2 error (ms) : -1.6
3179     3179 ALL Gun timing error Gun 3-2 error (ms) : -1.6
3189-3192     3189-3192 NONE Bird depth out of spec Bird C2-3
3194     3194 NONE Bird depth out of spec Bird C2-3
3258-3269     3258-3269 NONE Bird depth out of spec Bird C2-3
3285     3285 ALL Gun timing error Gun 3-2 error (ms) : -1.6
3402-3830     3402-3830 NONE Bird depth out of spec Bird C1-1
3556     3556 NONE Bird depth out of spec Bird C2-16
3677-3678     3677-3678 NONE Bird depth out of spec Bird C2-16
3688     3688 NONE Bird depth out of spec Bird C2-1
3901     3901 NONE Bird depth out of spec Bird C1-2
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Gun disabled Gun 2-4 disabled . New stbd source volume 3347cu.inch.
ALL     ALL ALL   NFH 1.4 using GSAP reference


 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 12:36:10utc 25-Oct-2001