ACQUISITION REPORT Sequence-0123
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3424A123
  Preplot G01A3424
  Direction 198.0°
  SOL Date 07:22:40utc 17-Dec-2001
  EOL Date 12:32:15utc 17-Dec-2001
 Attributes:  
   Wind Force 3.0 [knots] Dir SSW
   Swell Height 1.0 [meters] Dir SSW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 46.0 64.3 [meters]
   Bottomspeed  4.7 5.0 [knots]
   Featherangle sb +3.1 sb +8.3 [deg]
   Cable noise 6.55 5.7 [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)   4097-4096  
   SOL Dummy Record(s) 4095 - 4066 4095 - 4066 07:18:52 - 07:22:33
   FSP Start of Line 4065 4065 07:22:40
   MSP      
   LSP End of Line 1604 1604 12:32:15
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1603 - 1602  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4065 - 1604 4065 - 1604 07:22:40-12:32:15 Prime 16 Valid  
 Remarks:      
   Navigation Streamers depth at 7.0 m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1015mB. Str7 Bird 1 mask on External Header. Occasionally deep, 7.8-8.1m.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4097 - 3668 4097 - 3668 1 517  
  3667 - 3238 3667 - 3238 2 518  
  3237 - 2808 3237 - 2808 1 519  
  2807 - 2378 2807 - 2378 2 520  
  2377 - 1948 2377 - 1948 1 521  
  1947 - 1603 1947 - 1603 2 522  
Stream 2
   Shot(s) Files Deck Reel Remark
  4097 - 3668 4097 - 3668 3 517  
  3667 - 3238 3667 - 3238 4 518  
  3237 - 2808 3237 - 2808 3 519  
  2807 - 2378 2807 - 2378 4 520  
  2377 - 1948 2377 - 1948 3 521  
  1947 - 1603 1947 - 1603 4 522  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1191, 2307 Weak Trace(s) Trace signal less than -3dB of nominal value
ALL     ALL 2871 Noisy Trace(s)  
ALL     ALL 2307 Spiking Trace(s)  
3203     3203 ALL Gun timing error Gun 1-2 error (ms) : -2.1
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1459, 1465, 2034   Fails crossfeed test
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1, Occasional deep 7.8-8.1m
ALL     ALL 4-9, 12, 369-374, 376-380, 737-752, 755, 758, 760, 763-764, 1105-1113, 1125-1126, 1130-1131, 1135, 1473, 1481-1485, 1487, 1489, 1495, 1498-1499, 1841-1850, 1852-1853, 1855-1856, 2209-2219, 2225, 2585 Slope alarm > 5% of total line
4065-4040     4065-4040 ALL Pressure Drop Pressure drop, max drop 1905 psi
3758     3758 2577-2581 Bird depth out of spec Bird C8-1
3718-3716     3718-3716 419-435 Bird depth out of spec Bird C2-4
3668-3667     3668-3667 373-387 Bird depth out of spec Bird C2-2
3667-3666     3667-3666 2577-2581 Bird depth out of spec Bird C8-1
3660-3656     3660-3656 395-411 Bird depth out of spec Bird C2-3
3642     3642 419-435 Bird depth out of spec Bird C2-4
3640-3637     3640-3637 419-435 Bird depth out of spec Bird C2-4
3635     3635 419-435 Bird depth out of spec Bird C2-4
3633     3633 2577-2581 Bird depth out of spec Bird C8-1
3604     3604 2581-2595 Bird depth out of spec Bird C8-2
3603     3603 419-435 Bird depth out of spec Bird C2-4
3603     3603 2577-2581 Bird depth out of spec Bird C8-1
3555     3555 2577-2581 Bird depth out of spec Bird C8-1
3552     3552 2577-2581 Bird depth out of spec Bird C8-1
3526     3526 2283-2299 Bird depth out of spec Bird C7-5
2893     2893 ALL Gun Timing Error Gun 1-2 error (ms) : -1.6
2756-2754     2756-2754 51-67 Bird depth out of spec Bird C1-4
2752     2752 51-67 Bird depth out of spec Bird C1-4
2709-2706     2709-2706 419-435 Bird depth out of spec Bird C2-4
2701     2701 419-435 Bird depth out of spec Bird C2-4
2699-2694     2699-2694 419-435 Bird depth out of spec Bird C2-4
2699-2691     2699-2691 443-459 Bird depth out of spec Bird C2-5
2692     2692 75-91 Bird depth out of spec Bird C1-5
2674-2666     2674-2666 51-67 Bird depth out of spec Bird C1-4
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 12:45:04utc 17-Dec-2001