ACQUISITION REPORT Sequence-0300
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1824J300
  Preplot G01A1824
  Direction 18.0°
  SOL Date 14:41:18utc 04-Mar-2002
  EOL Date 15:59:22utc 04-Mar-2002
 Attributes:  
   Wind Force 22.0 [knots] Dir NE
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 43.4 40.6 [meters]
   Bottomspeed  3.8 3.3 [knots]
   Featherangle port -5.9 0.0 [deg]
   Cable noise 9.4 0.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3307  

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)   1101 - 1102  
   SOL Dummy Record(s) 1103 - 1132 1103 - 1132 14:35:45 - 14:41:09
   FSP Start of Line 1133 1133 14:41:18
   MSP      
   LSP End of Line 1585 1585 15:59:22
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3140 - 3141  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1133 - 1585 1133 - 1585 14:41:18-15:59:22 Prime 16 Valid Line aborted due to rig
 Remarks:      
   Navigation Streamer depth at 7.0m, gun 2-5 disabled at SP 1233    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1025mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1101 - 1530 1101 - 1530 1 1225  
  1531 - 3141 1531 - 3141 2 1226  
Stream 2
   Shot(s) Files Deck Reel Remark
  1101 - 1530 1101 - 1530 3 1225  
  1531 - 3141 1531 - 3141 4 1226  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476, 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 109, 1657, 2307, 2772 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
ALL     ALL- 2599 Killed traces  
ALL     ALL 8-16 Weak Trace(s) Trace signal -3db down due to spurious unreported filter or range setting
1349-1365     1349-1365 2611-2657 Monowing wash Low frequency, high amplitude noise due to monowing wash
1356-1371     1356-1371 2264-2310 Monowing wash Low frequency, high amplitude noise due to monowing wash
1360-1365     1360-1365 2283-2299 Bird depth out of spec Bird C7-5
1521-1585     1521-1585 1-140 Streamer noise High amplitude Low frequency noise dt bend in cable
1521-1585     1521-1585 369-508 Streamer noise High amplitude Low frequency noise dt bend in cable
1521-1585     1521-1585 737-876 Streamer noise High amplitude Low frequency noise dt bend in cable
1521-1585     1521-1585 1105-1244 Streamer noise High amplitude Low frequency noise dt bend in cable
1521-1585     1521-1585 1473-1612 Streamer noise High amplitude Low frequency noise dt bend in cable
1521-1585     1521-1585 1841-1980 Streamer noise High amplitude Low frequency noise dt bend in cable
1521-1585     1521-1585 2209-2348 Streamer noise High amplitude Low frequency noise dt bend in cable
1521-1585     1521-1585 2577-2716 Streamer noise High amplitude Low frequency noise dt bend in cable
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1, occasionally deep 8.1m - 8.3m
ALL     ALL 1, 3-9, 12, 369-374, 737-738, 744, 748, 1105-1106, 1109, 1112-1113, 1841-1853, 1855, 2209-2220, 2222-2225, 2231, 2577, 2585-2588, 2591 Slope alarm > 5% of total line
1138     1138 ALL Source depth out of spec Source-depth for gun position 2-3 below 6.6 meter
1350-1360     1350-1360 2651-2667 Bird depth out of spec Bird C8-5
1357-1367     1357-1367 2259-2275 Bird depth out of spec Bird C7-4
1366-1376     1366-1376 2331-2347 Bird depth out of spec Bird C7-7
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell noise affecting 10% of traces, RMS 6-8uB
1231     1231 ALL Gun not fired Gun-status lost for gun 2-5
1233     1233 ALL Gun Disabled Gun 2-5 disabled, new STBD vol 3307
1500     1500 ALL Line information Begin port turn to avoid rig


 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 19:48:36utc 04-Mar-2002