ACQUISITION REPORT Sequence-0153
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2320A153
  Preplot G01A2320
  Direction 18.0°
  SOL Date 08:41:16utc 27-Dec-2001
  EOL Date 13:25:58utc 27-Dec-2001
 Attributes:  
   Wind Force 8.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 50.0 39.0 [meters]
   Bottomspeed  4.3 4.5 [knots]
   Featherangle port -8.3 sb +0.7 [deg]
   Cable noise 7.92 5.9 [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)   1545 - 1546  
   SOL Dummy Record(s) 1547 - 1576 1547 - 1576 08:37:01 - 08:41:07
   FSP Start of Line 1577 1577 08:41:16
   MSP      
   LSP End of Line 3632 3632 13:25:58
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3633 - 3634  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1577 - 3632 1577 - 3632 08:41:16-13:25:58 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7.0 m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1014 mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Bird 8-18 masked from external header dt bad depth reading. Burst of swell noise present on records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1545 - 1974 1545 - 1974 1 627  
  1975 - 2404 1975 - 2404 2 628  
  2405 - 2834 2405 - 2834 1 629  
  2835 - 3264 2835 - 3264 2 630  
  3265 - 3634 3265 - 3634 1 631  
Stream 2
   Shot(s) Files Deck Reel Remark
  1545 - 1974 1545 - 1974 3 627  
  1975 - 2404 1975 - 2404 4 628  
  2405 - 2834 2405 - 2834 3 629  
  2835 - 3264 2835 - 3264 4 630  
  3265 - 3634 3265 - 3634 4 631  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1853 Killed traces  
ALL     ALL 1657, 2307, 2731 Spiking Trace(s)  
ALL     ALL 2871 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 occasional deep 7.9m - 8.2m
ALL     ALL 1599, 2034   Fails Crossfeed
ALL     ALL 1-7, 9, 12, 369-373, 737-745, 1105-1107, 1109, 1112, 2209-2226, 2229-2231, 2577, 2585-2589, 2591-2592, 2601-2602 Slope alarm > 5% of total line
1638-1650     1638-1650 75-91 Bird depth out of spec Bird C1-5
1639-1657     1639-1657 99-115 Bird depth out of spec Bird C1-6
1729-1739     1729-1739 51-67 Bird depth out of spec Bird C1-4
2794-2803     2794-2803 147-163 Bird depth out of spec Bird C1-8
Comment
Shot(s)     File(s) Trace(s) Type Remark
1577-2100     1577-2100 ALL Swell Noise Swell noise affecting 5% of traces, 6 uB ambient noise
2101-3632     2101-3632 ALL Swell Noise Swell noise decrease affecting < 5% of traces, 5 uB ambient noise


 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 21:19:50utc 27-Dec-2001