ACQUISITION REPORT Sequence-0320
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3936A320
  Preplot G01A3936
  Direction 198.0°
  SOL Date 22:57:06utc 14-Mar-2002
  EOL Date 02:18:30utc 15-Mar-2002
 Attributes:  
   Wind Force 22.0 [knots] Dir NW
   Swell Height 2.5 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 99 [avg]  
       
  SOL EOL  
   Waterdepth 49.0 59.0 [meters]
   Bottomspeed  4.2 4.4 [knots]
   Featherangle port -0.4 sb +3.1 [deg]
   Cable noise 6.3 17.7 [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)   4182 - 4181  
   SOL Dummy Record(s) 4180 - 4171 4180 - 4171 22:55:40 - 22:56:58
   FSP Start of Line 4170 4170 22:57:06
   MSP 3724 3724 23:59:53
   LSP End of Line 2740 2740 02:18:30
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2739 - 2739  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4170 - 3540 4170 - 3540 22:57:06-00:25:21 Prime 16 Valid  
    3539 - 3496 3539 - 3496 00:25:29-00:31:20 Prime 10 Valid Cable 6 NTBP Trace #1841-2208
    3495 - 3454 3495 - 3454 00:31:28-00:37:07 Prime 0 Scratched All cables NTBP no data recorded
    3453 - 3105 3453 - 3105 00:37:15-01:26:43 Prime 16 Valid  
    3104 - 2740 3104 - 2740 01:26:52-02:18:30 Prime 0 Scratched  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1016mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. All gun DI's slightly erratic d/t swell. Occ swell noise seen on all cables approx. LGSP 3105    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4182 - 3753 4182 - 3753 1 1316  
  3752 - 3495 3752 - 3495 2 1317  
  3460 - 3031 3460 - 3031 2 1318  
  3030 - 2739 3030 - 2739 1 1319 only one noise file
Stream 2
   Shot(s) Files Deck Reel Remark
  4182 - 3753 4182 - 3753 3 1316  
  3752 - 3495 3752 - 3495 4 1317  
  3460 - 3031 3460 - 3031 4 1318  
  3030 - 2739 3030 - 2739 3 1319 only one noise file

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2599 Killed traces  
ALL     ALL 1633, 2782 Weak Channel  
ALL     ALL 1657, 2389, 2600, 2641 Spiking traces  
ALL     ALL 2772 Noisy trace  
3539-3496     3539-3496 1841-2208 Parity errors Streamer 6 NTBP
3495-3454     3495-3454 ALL Parity errors All streamers NTBP no data.
3118-3111     3118-3111 51-67 Bird depth out of spec Bird C1-4
3115-3098     3115-3098 75-91 Bird depth out of spec Bird C1-5
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476, 2782 Weak Channels  
ALL     ALL NONE Bird depth out of spec Bird C7-1 occasionally deep, 8.1 - 8.2m
3313-3299     3313-3299 75-91 Bird depth out of spec Bird C1-5
3211-3201     3211-3201 75-91 Bird depth out of spec Bird C1-5
3200     3200 ALL Swell Noise Swell noise increasing
3120-3119     3120-3119 51-67 Bird depth out of spec Bird C1-4
3117-3097     3117-3097 99-115 Bird depth out of spec Bird C1-6
3085-3071     3085-3071 2011-2027 Bird depth out of spec Bird C6-9
2993-2978     2993-2978 419-435 Bird depth out of spec Bird C2-4
2986-2977     2986-2977 51-67 Bird depth out of spec Bird C1-4
2792-2781     2792-2781 395-411 Bird depth out of spec Bird C2-3
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Bad Birds Birds 2-18, 4-2 bad comms
3105     3105 ALL   Last Good Shot Point
2740     2740 ALL   Last Recorded Shot Point


 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 01:37:03utc 16-Mar-2002