ACQUISITION REPORT Sequence-0903
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2400LWH903
  Preplot G01A2400
  Direction 198.0°
  SOL Date 21:28:26utc 10-Jul-2002
  EOL Date 22:04:36utc 10-Jul-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NNW
   Swell Height 1.0 [meters] Dir NNW
   Propellor rpm 134 [avg]  
   Propellor pitch 55 [avg]  
       
  SOL EOL  
   Waterdepth 47.0 49.0 [meters]
   Bottomspeed  4.8 4.9 [knots]
   Featherangle sb +1.4 sb +3.8 [deg]
   Cable noise 4.6 4.1 [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 -180.0 25.0 -6.0 3542.0 3 24
2 PORT -180.0 -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 -330.0 150.0 -7.0 2600 Nessie-3 12.5 208 0001-0208
2 STBD -330.0 50.0 -7.0 2600 Nessie-3 12.5 208 0209-0416
3 PORT -330.0 -50.0 -7.0 2600 Nessie-3 12.5 208 0417-0624
4 PORT -330.0 -150.0 -7.0 2600 Nessie-3 12.5 208 0625-0832

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 0208 0001-0208 0208 0001 - 0208 5.60
3 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0208 0209-0416 0208 0209 - 0416 5.60
4 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0208 0417-0624 0208 0417 - 0624 5.60
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0208 0625-0832 0208 0625 - 0832 5.60

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   2352 - 2351  
   SOL Dummy Record(s) 2350 - 2321 2350 - 2321 21:24:38 - 21:28:19
   FSP Start of Line 2320 2320 21:28:26
   MSP      
   LSP End of Line 2030 2030 22:04:36
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2029 - 2028  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2320 - 2030 2320 - 2030 21:28:26-22:04:36 Infill 8 Valid Orthogonal line West of Whiting platform
 Remarks:      
   Navigation Streamer depth 7.0mtr. Four by 2.6km streamer line.    
   Recording QC Frontsheet Set 6. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1027mB. Using Four by 2.6km streamer.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  2352 - 2029 2352 - 2029 2 10111  
Stream 3
   Shot(s) Files Deck Reel Remark
  2352 - 2029 2352 - 2029 4 10111  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 209-213 Bird depth out of spec Bird C2-1, occasionally out of spec 8.1m - 8.7m
ALL     ALL 417-421 Bird depth out of spec Bird C3-1, occasionally out of spec 8.1m - 8.4m
ALL     ALL 1-4, 209-210, 417-418, 625-631, 633 Slope alarm > 5% of total line
ALL     ALL 209-211, 417-418 Out of range > 5% of total line
2306     2306 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2138     2138 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2120     2120 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2092     2092 ALL Gun timing error Gun 5-3 error (ms) : -1.2
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 18:30:08utc 11-Jul-2002