ACQUISITION REPORT Sequence-0025

 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2576A025
  Preplot  G01A2576
  Direction 198.0°
  SOL Date 07:42:53utc 27-Oct-2001
  EOL Date 12:10:29utc 27-Oct-2001

 Attributes:  
   Wind Force 10.0 [knots] Dir SSW
   Swell Height 1.2 [meters] Dir S
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 45.0 53.0 [meters]
   Bottomspeed  4.3 4.5 [knots]
   Featherangle port -1.4 port -3.3 [deg]
   Cable noise 6.14 6.18 [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 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)   3694 - 3693  
   SOL Dummy Record(s) 3692 - 3683 3692 - 3683 07:41:29 - 07:42:45
   FSP Start of Line 3682 3682 07:42:53
   MSP      
   LSP End of Line 1686 1686 12:10:29
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1685 - 1684  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3682 - 1686 3682 - 1686 07:42:53-12:10:29 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1011mB. Str 8 Bird 1 mask on External Header, constantly deep, 8.1m. Source depth for gun position 2-4 erratic. Pressure transducer on array 2 gives erratic reading during the line.    
Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3694 - 3265 3694 - 3265 2 104  
  3264 - 2835 3264 - 2835 1 105  
  2834 - 2405 2834 - 2405 2 106  
  2404 - 1975 2404 - 1975 1 107  
  1974 - 1684 1974 - 1684 2 108  
Stream 2
   Shot(s) Files Deck Reel Remark
  3694 - 3265 3694 - 3265 3 104  
  3264 - 2835 3264 - 2835 4 105  
  2834 - 2405 2834 - 2405 3 106  
  2404 - 1975 2404 - 1975 4 107  
  1974 - 1684 1974 - 1684 4 108  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1191 Killed traces  
ALL     ALL- 1948 Killed traces  
ALL     ALL- 2764 Killed traces  
ALL     ALL- 2806 Killed traces  
ALL     ALL 304, 1127, 2775 Noisy Trace(s)  
2183     2183 ALL Gun timing error Gun 2-2 error (ms) : -2.1 
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-9, 12, 369-374, 377, 737-745, 747-749, 752, 1105-1113, 1473, 1841-1844, 1849, 2209-2211, 2213-2214, 2216-2218 Slope alarm > 5% of total line
3298-3285     3298-3285 NONE Bird depth out of spec Bird C7-5
3285     3285 NONE Bird depth out of spec Bird C7-6
3058-3056     3058-3056 NONE Bird depth out of spec Bird C7-5
3057     3057 NONE Bird depth out of spec Bird C7-6
3055-3051     3055-3051 NONE Bird depth out of spec Bird C7-6
2960     2960 NONE Bird depth out of spec Bird C6-1
2959     2959 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2899-2896     2899-2896 NONE Bird depth out of spec Bird C7-6
2893     2893 NONE Bird depth out of spec Bird C7-6
2848     2848 NONE Bird depth out of spec Bird C5-2
2817     2817 ALL Gun timing error Gun 3-2 error (ms) : -1.6 
2768     2768 NONE Bird depth out of spec Bird C5-1
2465     2465 NONE Bird depth out of spec Bird C7-2
2374     2374 NONE Bird depth out of spec Bird C7-5
2364-2352     2364-2352 NONE Bird depth out of spec Bird C7-4
2355     2355 ALL Gun timing error Gun 3-2 error (ms) : -1.6 
2353     2353 NONE Bird depth out of spec Bird C7-2
2350-2348     2350-2348 NONE Bird depth out of spec Bird C7-4
2329     2329 ALL Gun timing error Gun 3-2 error (ms) : -1.6 
2297-2293     2297-2293 NONE Bird depth out of spec Bird C7-4
2290     2290 NONE Bird depth out of spec Bird C7-2
2288-2287     2288-2287 NONE Bird depth out of spec Bird C8-5
2285     2285 NONE Bird depth out of spec Bird C8-5
2272-2270     2272-2270 NONE Bird depth out of spec Bird C7-4
2133     2133 ALL Gun timing error Gun 3-2 error (ms) : -1.7 
2106     2106 NONE Bird depth out of spec Bird C6-2
1969     1969 NONE Bird depth out of spec Bird C5-1
1890     1890 NONE Bird depth out of spec Bird C1-2
1882     1882 NONE Bird depth out of spec Bird C5-1
1753     1753 NONE Bird depth out of spec Bird C6-2
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL   NFH 1.4 using GSAP reference

 
 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/LOSPFirst/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 12:41:03utc 27-Oct-2001