ACQUISITION REPORT Sequence-0041
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3040B041
  Preplot G01A3040
  Direction 198.0°
  SOL Date 02:54:12utc 09-Nov-2001
  EOL Date 03:32:00utc 09-Nov-2001
 Attributes:  
   Wind Force 0.0 [knots] $(wind_dir)
   Swell Height 1.5 [meters] Dir ENE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 44.0 48.0 [meters]
   Bottomspeed  4.2 4.3 [knots]
   Featherangle port -0.7 port -0.3 [deg]
   Cable noise 6.86 7.3 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]

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)   3969 - 3968  
   SOL Dummy Record(s) 6284 - 3968 4166 - 3968 09:43:43 - 12:26:31
   FSP Start of Line 3967 3967 02:54:12
   MSP      
   LSP End of Line 3700 3700 03:32:00
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3699 - 3699  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3967 - 3700 3967 - 3700 12:26:40-03:32:00 Reshoot 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m, Gun firing only on STBD side (ODD SP) d/t compressor problem    
   Recording QC Filter delay 5.6ms. Frontsheet Set 3. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1010mB. Erratic pressure transducer data on array 2 Str 8 Bird 1 mask on External Header, occasionally deep, No PORT gun Firing d/t compressor, Swell noise occasionally present on records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3969 - 3700 3969 - 3700 1 169  
Stream 2
   Shot(s) Files Deck Reel Remark
  3969 - 3700 3969 - 3700 3 169  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 304, 1127 Noisy Trace(s)
3966-3942     3966-3942 1827-1840 Bird depth out of spec Bird C5-17
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301 Fails crossfeed test  
ALL     ALL 1191, 1948 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1-9, 11-12, 15-17, 22, 369-374, 377-378, 737-745, 747-752, 758-759, 763-764, 1105-1106, 1109-1110, 1112-1113, 1473, 1841-1842, 1845, 1850, 1852, 1855-1856, 2209-2212, 2585-2586 Slope alarm > 5% of total line
3966-3947     3966-3947 NONE Bird depth out of spec Bird C5-13
3930-3917     3930-3917 NONE Bird depth out of spec Bird C5-13
3915     3915 NONE Bird depth out of spec Bird C5-13
3783-3729     3783-3729 ALL Ship Noise From abeam. Level 8-10 uBar. Affecting front streamer ms/km
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 17:58:37utc 10-Nov-2001