ACQUISITION REPORT Sequence-0880
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170C
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A5280PFH880
  Preplot G01A5280
  Direction 85.0°
  SOL Date 19:51:26utc 26-Jun-2002
  EOL Date 20:57:52utc 26-Jun-2002
 Attributes:  
   Wind Force 22.0 [knots] Dir N
   Swell Height 1.5 [meters] Dir VAR
   Propellor rpm 122 [avg]  
   Propellor pitch 80 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 86.0 [meters]
   Bottomspeed  4.7 4.7 [knots]
   Featherangle port -4.0 port -12.3 [deg]
   Cable noise 6.1 22.0 [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 8
2 PORT -345.0 -25.0 -6.0 3542.0 3 8

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 -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 1841-2208

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

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   3262 - 3261  
   SOL Dummy Record(s) 3260 - 3251 3260 - 3251 19:50:08 - 19:51:18
   FSP Start of Line 3250 3250 19:51:26
   MSP      
   LSP End of Line 2740 2740 20:57:52
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2739 - 2739  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3250 - 2740 3250 - 2740 19:51:26-20:57:52 Prime 12 Valid  
 Remarks:      
   Navigation Streamer depth 7.0mtr. Six streamer line. Pass to south of Hallibut and Fortescue platforms.    
   Recording QC Frontsheet Set 5. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1020mB. Six streamer line. ORTHOGONAL LINE    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3262 - 2740 3262 - 2740 1 10087  
Stream 2
   Shot(s) Files Deck Reel Remark
  3262 - 2740 3262 - 2740 3 10087  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2134, 2067 Noisy Trace(s)  
2850-2740     2850-2740 1-200 Noisy Trace(s) Edit channel range d/t rip current noise
2850-2740     2850-2740 737-919 Noisy Trace(s) Edit channel range d/t rip current noise
2850-2740     2850-2740 1105-1285 Noisy Trace(s) Edit channel range d/t rip current noise
2850-2740     2850-2740 1473-1674 Noisy Trace(s) Edit channel range d/t rip current noise
2850-2740     2850-2740 1841-2043 Noisy Trace(s) Edit channel range d/t rip current noise
2850-2740     2850-2740 369-569 Noisy Trace(s) Edit channel range d/t rip current noise
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell noise seen on all cables approx 10%
ALL     ALL 379, 1127, 1895 Noisy Trace(s) Slightly noisy
ALL     ALL NONE Bad Bird Bird/Compass 6-11 no comms. Bird 3-10 occ intermittent comms.
ALL     ALL 369-736 Parity errors Very low level parity errors observed cable 2 line2
ALL     ALL ALL Bird depth out of spec Bird 4-9 occ running deep max 8.3 mtrs
ALL     ALL 1-14, 17, 21-22, 25, 369-393, 395-396, 401, 758, 1105, 1112-1113, 1116-1117, 1119, 1121, 1473-1487, 1489, 1492-1493, 1496, 1499, 1505, 1841-1858 Slope alarm > 5% of total line
2974     2974 ALL Gun timing error Gun 5-4 error (ms) : -1.4
2968     2968 ALL Gun timing error Gun 5-4 error (ms) : -1.3
2898     2898 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2872     2872 ALL Gun timing error Gun 5-4 error (ms) : -1.5
2852-2818     2852-2818 NONE Bird depth out of spec Bird 5-18 running deep max 10.0 mtrs (bird on stretch)
2850-2818     2850-2818 NONE Bird depth out of spec Bird 6-18 running deep max 10.0 mtrs (bird on stretch)
2846-2822     2846-2822 NONE Bird depth out of spec Bird 6-17 running deep max 9.0 mtrs
2804     2804 ALL Gun timing error Gun 5-4 error (ms) : -1.1
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 23:00:46utc 28-Jun-2002