ACQUISITION REPORT Sequence-0148
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2864J148
  Preplot G01A2864
  Direction 18.0°
  SOL Date 02:58:13utc 24-Dec-2001
  EOL Date 04:15:51utc 24-Dec-2001
 Attributes:  
   Wind Force 22.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 85 [avg]  
       
  SOL EOL  
   Waterdepth 54.0 50.0 [meters]
   Bottomspeed  4.95 4.4 [knots]
   Featherangle sb +6.0 port -1.5 [deg]
   Cable noise 6.32 11.48 [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)   1987 - 1988  
   SOL Dummy Record(s) 1989 - 2018 1989 - 2018 02:54:33 - 02:58:05
   FSP Start of Line 2019 2019 02:58:13
   MSP      
   LSP End of Line 2640 2640 04:15:51
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3994 - 3995  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2019 - 2640 2019 - 2640 02:58:13-04:15:51 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7.0 m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1002 mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Occassional burst of swell noise present on record.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1987 - 2416 1987 - 2416 1 614  
  2417 - 3995 2417 - 3995 2 615  
Stream 2
   Shot(s) Files Deck Reel Remark
  1987 - 2416 1987 - 2416 4 614  
  2417 - 3995 2417 - 3995 3 615  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1853 Killed traces  
ALL     ALL 1657, 2307, 2731 Spiking Trace(s)  
ALL     ALL 2307 Weak Trace(s) Trace signal less than -3dB of nominal value
2271     2271 ALL Gun timing error Gun 1-2 error (ms) : -2.4
2620-2640     2620-2640 1-81 Streamer noise Streamer noise d/t turning avoid a platform
2620-2640     2620-2640 369-449 Streamer noise Streamer noise d/t turning avoid a platform
2620-2640     2620-2640 737-817 Streamer noise Streamer noise d/t turning avoid a platform
2620-2640     2620-2640 1105-1185 Streamer noise Streamer noise d/t turning avoid a platform
2620-2640     2620-2640 1473-1553 Streamer noise Streamer noise d/t turning avoid a platform
2620-2640     2620-2640 1841-1921 Streamer noise Streamer noise d/t turning avoid a platform
2620-2640     2620-2640 2209-2289 Streamer noise Streamer noise d/t turning avoid a platform
2620-2640     2620-2640 2577-2657 Streamer noise Streamer noise d/t turning avoid a platform
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1599, 2034 Crossfeed Failed crossfeed test
ALL     ALL 1, 3-5, 9, 369-373, 737-738, 741, 744, 1109, 1112, 2209-2211, 2213-2214, 2217 Slope alarm > 5% of total line
2361     2361 ALL Gun timing error Gun 1-2 error (ms) : -1.7
2401     2401 ALL Gun timing error Gun 1-2 error (ms) : -1.9
2608     2608 2209-2213 Bird depth out of spec Bird C7-1
2610-2612     2610-2612 2209-2213 Bird depth out of spec Bird C7-1
2614-2619     2614-2619 2209-2213 Bird depth out of spec Bird C7-1
2616-2619     2616-2619 2577-2581 Bird depth out of spec Bird C8-1
2621-2625     2621-2625 2209-2213 Bird depth out of spec Bird C7-1
2621-2625     2621-2625 2577-2581 Bird depth out of spec Bird C8-1
2623     2623 ALL Gun timing error Gun 3-2 error (ms) : -1.7
2627     2627 2651-2667 Bird depth out of spec Bird C8-5
2628-2638     2628-2638 2675-2691 Bird depth out of spec Bird C8-6
2630-2640     2630-2640 2577-2581 Bird depth out of spec Bird C8-1
2630-2637     2630-2637 2603-2619 Bird depth out of spec Bird C8-3
2631     2631 2627-2643 Bird depth out of spec Bird C8-4
2631-2632     2631-2632 2651-2667 Bird depth out of spec Bird C8-5
2632-2637     2632-2637 2235-2251 Bird depth out of spec Bird C7-3
2632     2632 2259-2275 Bird depth out of spec Bird C7-4
2632-2633     2632-2633 2627-2643 Bird depth out of spec Bird C8-4
2633-2640     2633-2640 2209-2213 Bird depth out of spec Bird C7-1
2633-2637     2633-2637 2259-2275 Bird depth out of spec Bird C7-4
2633     2633 2651-2667 Bird depth out of spec Bird C8-5
2634-2640     2634-2640 2283-2299 Bird depth out of spec Bird C7-5
2634-2637     2634-2637 2627-2643 Bird depth out of spec Bird C8-4
2634-2639     2634-2639 2651-2667 Bird depth out of spec Bird C8-5
2637     2637 2307-2323 Bird depth out of spec Bird C7-6
2638-2640     2638-2640 2259-2275 Bird depth out of spec Bird C7-4
2639     2639 2699-2715 Bird depth out of spec Bird C8-7
Comment
Shot(s)     File(s) Trace(s) Type Remark
2019-2640     2019-2640 ALL Swell Noise Swell noise affected 5% of traces, 5 uB ambient noise
2589     2589 ALL   Turning to avoid a platform


 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 04:43:54utc 24-Dec-2001