ACQUISITION REPORT Sequence-0005
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2544A005
  Preplot G01A2544
  Direction 198.0°
  SOL Date 00:59:11utc 22-Oct-2001
  EOL Date 05:11:41utc 22-Oct-2001
 Attributes:  
   Wind Force 3.0 [knots] Dir E
   Swell Height 0.5 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 42.0 53.0 [meters]
   Bottomspeed  4.6 5.0 [knots]
   Featherangle port -5.7 port -3.9 [deg]
   Cable noise 6.1 5.93 [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 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)   3692 - 3691  
   SOL Dummy Record(s) 3690 - 3661 3690 - 3661 00:55:14 - 00:59:03
   FSP Start of Line 3660 3660 00:59:11
   MSP      
   LSP End of Line 1657 1657 05:11:41
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1656 - 1655  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3660 - 1657 3660 - 1657 00:59:11-05:11:41 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7.0m, STB Guns firing on ODD SP.    
   Recording QC Filter delay 5.6ms. Frontsheet Set 1. Bird 8-1 constantly deep, 8.1-8.4m. Gundepth calibrated at atmospheric preassure 1004mB, preassure now 1020mb. Str 8 Bird 1 mask on External Header. Ship noise (work boat) at SOL noise record    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3692 - 3263 3692 - 3263 1 16  
  3262 - 2833 3262 - 2833 2 17  
  2832 - 2403 2832 - 2403 2 18  
  2402 - 1973 2402 - 1973 1 19  
  1972 - 1656 1972 - 1656 2 20  
Stream 2
   Shot(s) Files Deck Reel Remark
  3692 - 3263 3692 - 3263 3 16  
  3262 - 2833 3262 - 2833 4 17  
  2832 - 2403 2832 - 2403 3 18  
  2402 - 1973 2402 - 1973 3 19  
  1972 - 1656 1972 - 1656 4 20  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1948 Killed traces  
ALL     ALL 1191, 2764, 2806 Weak Trace(s) Trace signal less than -3dB of nominal value.
ALL     ALL 1127, 2775 Noisy Trace(s)  
1999     1999 ALL Lost Gun status Gun-status lost for array 3
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2577-2584 Bird depth out of spec Bird C8-1 deep 7.5-8.5m
ALL     ALL 2209-2216 Bird depth out of spec Bird 7-1 occasionally out of spec
ALL     ALL 9, 369-371, 377, 737-745, 747-749, 751, 1105-1113, 1473, 1841-1842, 1844, 2209-2210 Slope alarm > 5% of total line
3379     3379 705-728 Bird depth out of spec Bird C2-16
3317     3317 1473-1480 Bird depth out of spec Bird C5-1
2532     2532 1113-1128 Bird depth out of spec Bird C4-2
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE NFH NFH 1.4 using GSAP reference
3660-3590     3660-3590 ALL Ship Noise Low level shipnoise abeam of aft traces 8-10µB
3133-3084     3133-3084 ALL Ship Noise From abeam. Level 15 uB
2695-2549     2695-2549 ALL Ship Noise From abeam. Level 10 uB


 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 19:51:35utc 22-Oct-2001