ACQUISITION REPORT Sequence-0025
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421344P025
  Preplot VP421344
  Direction 13.0°
  SOL Date 15:41:39utc 02-Aug-2002
  EOL Date 19:47:05utc 02-Aug-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir N
   Swell Height 1.0 [meters] Dir N
   Propellor rpm 137 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 65.0 56.0 [meters]
   Bottomspeed  4.7 4.4 [knots]
   Featherangle sb +1.2 port -2.7 [deg]
   Cable noise 15.7 5.4 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Filter Slope 18 18  
   Port Volume 3542.0 3542.0  
   Stbd Volume 3542.0 3542.0  

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 -7.0 3542.0 3 24
2 PORT -345.0 -25.0 -7.0 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 -8.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -8.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -8.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -8.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -8.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -8.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -8.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -8.0 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)   2824 - 2823  
   SOL Dummy Record(s) 2822 - 2793 2822 - 2793 15:37:48 - 15:41:32
   FSP Start of Line 2792 2792 15:41:39
   MSP      
   LSP End of Line 984 984 19:47:05
   EOL Dummy Record(s)      
   EOL Noise Record(s)   983 - 982  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2792 - 984 2792 - 984 15:41:39-19:47:05 Unknown 0 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1012mB. Excessive Noise on SOL Noise record dt bend in cable from short run in.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2824 - 2395 2824 - 2395 1 105  
  2394 - 1965 2394 - 1965 2 106  
  1964 - 1535 1964 - 1535 1 107  
  1534 - 1105 1534 - 1105 2 108  
  1104 - 983 1104 - 983 1 109  
Stream 2
   Shot(s) Files Deck Reel Remark
  2824 - 2395 2824 - 2395 3 105  
  2394 - 1965 2394 - 1965 4 106  
  1964 - 1535 1964 - 1535 3 107  
  1534 - 1105 1534 - 1105 4 108  
  1104 - 983 1104 - 983 3 109  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 1492, 2497 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL-985 109 Killed traces  
2239-2194     2239-2194 2226-2292 Monowing wash Low frequency, high amplitude noise due to monowing wash
2230-2120     2230-2120 2227-2266 Monowing wash Low frequency, high amplitude noise due to monowing wash
2203-2194     2203-2194 2650-2673 Bird depth out of spec Bird C8-5
2193-2183     2193-2183 2674-2697 Bird depth out of spec Bird C8-6
2145-2139     2145-2139 2258-2281 Bird depth out of spec Bird C7-4
2143-2130     2143-2130 2231-2340 Monowing wash Low frequency, high amplitude noise due to monowing wash
2074-2052     2074-2052 2250-2310 Monowing wash Low frequency, high amplitude noise due to monowing wash
1594-1584     1594-1584 2248-2293 Monowing wash Low frequency, high amplitude noise due to monowing wash
1536-1534     1536-1534 2243-2257 Bird depth out of spec Bird C7-3
1528-1526     1528-1526 2258-2281 Bird depth out of spec Bird C7-4
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-20, 22, 369-383, 385, 737-746, 748, 752, 1841-1855, 1857-1858, 1861-1862, 2209-2232, 2235, 2577-2601, 2603, 2605, 2607 Slope alarm > 5% of total line
2486     2486 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2193-2187     2193-2187 2650-2673 Bird depth out of spec Bird C8-5
2191-2179     2191-2179 2282-2305 Bird depth out of spec Bird C7-5
2184-2166     2184-2166 2698-2721 Bird depth out of spec Bird C8-7
2173-2163     2173-2163 2722-2745 Bird depth out of spec Bird C8-8
2165-2145     2165-2145 2282-2305 Bird depth out of spec Bird C7-5
2162-2145     2162-2145 2306-2329 Bird depth out of spec Bird C7-6
2128-2119     2128-2119 2282-2305 Bird depth out of spec Bird C7-5
2122-2109     2122-2109 2650-2673 Bird depth out of spec Bird C8-5
2117-2106     2117-2106 2378-2401 Bird depth out of spec Bird C7-9
2114-2097     2114-2097 2674-2697 Bird depth out of spec Bird C8-6
2098-2082     2098-2082 2258-2281 Bird depth out of spec Bird C7-4
2089-2077     2089-2077 2282-2305 Bird depth out of spec Bird C7-5
2054-2051     2054-2051 2258-2281 Bird depth out of spec Bird C7-4
2049-2046     2049-2046 2330-2353 Bird depth out of spec Bird C7-7
2042-2031     2042-2031 2282-2305 Bird depth out of spec Bird C7-5
2033-2021     2033-2021 2306-2329 Bird depth out of spec Bird C7-6
1504-1495     1504-1495 2282-2305 Bird depth out of spec Bird C7-5
1107     1107 ALL Gun timing error Gun 1-2 error (ms) : 1.6
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 06:01:59utc 03-Aug-2002