ACQUISITION REPORT Sequence-0227
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1136A227
  Preplot G01A1136
  Direction 18.0°
  SOL Date 09:41:57utc 25-Jan-2002
  EOL Date 13:13:53utc 25-Jan-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir ENE
   Swell Height 2.5 [meters] Dir ENE
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 31.0 15.0 [meters]
   Bottomspeed  3.4 4.4 [knots]
   Featherangle port -5.7 sb +9.6 [deg]
   Cable noise 6.5 0.0 [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)   1005 - 1006  
   SOL Dummy Record(s) 1007 - 1016 1007 - 1016 09:40:09 - 09:41:46
   FSP Start of Line 1017 1017 09:41:57
   MSP      
   LSP End of Line 2334 2334 13:13:53
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2335 - 2336  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1017 - 2334 1017 - 2334 09:41:57-13:13:53 Prime 14 Valid  
 Remarks:      
   Navigation Streamer depth at 7m    
   Recording QC STR 1 (CHN 1-368) NTBP D/L EARTH LEAKAGE. Occasional mild e/l noise on str 4 (chn 1297-1305, 1329-1337, 1353-1377). Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1019mB, pressure now 1018mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Birds 4-17, 2-9 bad comms    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1005 - 1434 1005 - 1434 1 937  
  1435 - 1864 1435 - 1864 2 938  
  1865 - 2294 1865 - 2294 1 939  
  2295 - 2336 2295 - 2336 2 940  
Stream 2
   Shot(s) Files Deck Reel Remark
  1005 - 1434 1005 - 1434 3 937  
  1435 - 1864 1435 - 1864 4 938  
  1865 - 2294 1865 - 2294 3 939  
  2295 - 2336 2295 - 2336 4 940  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1255 Killed Trace  
ALL     ALL 1855 KIlled Trace  
ALL     ALL 1-368   Not to be processed, (Cable One)
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Fails Crossfeed  
ALL     ALL 1297-1305 Earth leakage Mild low frequency earth leakage noise on str 4
ALL     ALL 1329-1337 Earth leakage Mild low frequency earth leakage noise on str 4
ALL     ALL 1353-1377 Earth leakage Mild low frequency earth leakage noise on str 4
1017-1340     1017-1340 1297-1377 Earth leakage Occasional mild low frequency earth leakage noise on str 4
1332-1333     1332-1333 1297-1377 Earth leakage Mild low frequency earth leakage noise on str 4
1338     1338 1297-1377 Earth leakage Mild low frequency earth leakage noise on str 4
1343     1343 1297-1377 Earth leakage Mild low frequency earth leakage noise on str 4
1347     1347 1297-1377 Earth leakage Mild low frequency earth leakage noise on str 4
1376-1379     1376-1379 1297-1377 Earth leakage Mild low frequency earth leakage noise on str 4
1429-1432     1429-1432 1297-1377 Earth leakage Mild low frequency earth leakage noise on str 4
1705     1705 ALL Gun timing error Gun 2-6 error (ms) : 1.1
2146-2157     2146-2157 NONE Bird depth out of spec Bird C7-4
2150-2165     2150-2165 NONE Bird depth out of spec Bird C8-4
2152-2167     2152-2167 NONE Bird depth out of spec Bird C8-5
2178-2186     2178-2186 NONE Bird depth out of spec Bird C8-6
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE Bad Bird Bird 4-17, 2-9 no comms
ALL     ALL NONE Bad Comms Cable 1 bird occ random bird dropout seen, bird 4-11 int comms
ALL     ALL ALL Swell Noise Occ swell bursts seen on all cables approx 5%
2140     2140 NONE Turning Vsl turning to stbd offline d/t shallows
2200     2200 ALL Front end noise Starting to see front end noise d/t vessel turning offline


 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 14:01:48utc 25-Jan-2002