ACQUISITION REPORT Sequence-0098
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3152A098
  Preplot G01A3152
  Direction 18.0°
  SOL Date 01:46:08utc 01-Dec-2001
  EOL Date 07:03:32utc 01-Dec-2001
 Attributes:  
   Wind Force 15.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 61.0 43.0 [meters]
   Bottomspeed  4.8 4.55 [knots]
   Featherangle port -2.5 sb +1.6 [deg]
   Cable noise 6.58 5.41 [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)   1574 - 1575  
   SOL Dummy Record(s) 1576 - 1605 1576 - 1605 01:42:19 - 01:46:00
   FSP Start of Line 1606 1606 01:46:08
   MSP      
   LSP End of Line 4116 4116 07:03:32
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4117 - 4118  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1606 - 4116 1606 - 4116 01:46:08-07:03:32 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1004mB. Str 8 Bird 1 mask on External Header, occasionally deep, 8.1m. Wrong gun fire sequence, STB array fired with EVEN SP. Occassional burst of swell present on records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1574 - 2003 1574 - 2003 1 390  
  2004 - 2433 2004 - 2433 2 391  
  2434 - 2863 2434 - 2863 1 392  
  2864 - 3293 2864 - 3293 1 393  
  3294 - 3723 3294 - 3723 2 394  
  3724 - 4118 3724 - 4118 1 395  
Stream 2
   Shot(s) Files Deck Reel Remark
  1574 - 2003 1574 - 2003 3 390  
  2004 - 2433 2004 - 2433 4 391  
  2434 - 2863 2434 - 2863 3 392  
  2864 - 3293 2864 - 3293 4 393  
  3294 - 3723 3294 - 3723 3 394  
  3724 - 4118 3724 - 4118 4 395  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 2220 Killed traces  
ALL     ALL 1191 Weak Trace(s) Trace signal less than -3dB of nominal value
ALL     ALL 839, 882 Noisy Trace(s)  
ALL     ALL 882 Spiking Trace(s)  
1818     1818 467-483 Bird depth out of spec Bird C2-6
1903-1904     1903-1904 75-91 Bird depth out of spec Bird C1-5
1921-1923     1921-1923 99-115 Bird depth out of spec Bird C1-6
4060-4061     4060-4061 51-67 Bird depth out of spec Bird C1-4
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 often deep, max 8.4m
ALL     ALL 2577-2581 Bird depth out of spec Bird C8-1 deep all line, max 8.3
ALL     ALL 1-9, 11-12, 369-374, 376-377, 737-745, 747-748, 1105-1113, 1126, 1130, 1473, 1499, 1841-1842, 1845, 1850, 1852, 2585 Slope alarm > 5% of total line
1809-1811     1809-1811 443-459 Bird depth out of spec Bird C2-5
1810-1812     1810-1812 51-67 Bird depth out of spec Bird C1-4
1813-1816     1813-1816 99-115 Bird depth out of spec Bird C1-6
1814-1817     1814-1817 467-483 Bird depth out of spec Bird C2-6
1816-1823     1816-1823 51-67 Bird depth out of spec Bird C1-4
1816     1816 123-139 Bird depth out of spec Bird C1-7
1818     1818 99-115 Bird depth out of spec Bird C1-6
1819-1823     1819-1823 467-483 Bird depth out of spec Bird C2-6
1850-1852     1850-1852 51-67 Bird depth out of spec Bird C1-4
1852-1859     1852-1859 75-91 Bird depth out of spec Bird C1-5
1861-1864     1861-1864 75-91 Bird depth out of spec Bird C1-5
1864     1864 99-115 Bird depth out of spec Bird C1-6
1901-1902     1901-1902 51-67 Bird depth out of spec Bird C1-4
1905-1915     1905-1915 75-91 Bird depth out of spec Bird C1-5
1917-1920     1917-1920 99-115 Bird depth out of spec Bird C1-6
1918     1918 75-91 Bird depth out of spec Bird C1-5
1924-1927     1924-1927 99-115 Bird depth out of spec Bird C1-6
1964     1964 515-531 Bird depth out of spec Bird C2-8
2116     2116 ALL Gun timing error Gun 2-3 error (ms) : 1.2
2159     2159 99-115 Bird depth out of spec Bird C1-6
2208     2208 ALL Gun timing error Gun 2-3 error (ms) : 1.1
2273     2273 2213-2227 Bird depth out of spec Bird C7-2
2398     2398 ALL Gun timing error Gun 2-3 error (ms) : 1.1
2962     2962 2867-2883 Bird depth out of spec Bird C8-14
2982     2982 ALL Gun timing error Gun 2-3 error (ms) : 1.2
3054     3054 419-435 Bird depth out of spec Bird C2-4
3130     3130 ALL Gun timing error Gun 2-2 error (ms) : -1.9
3185     3185 5-19 Bird depth out of spec Bird C1-2
3201-3206     3201-3206 419-435 Bird depth out of spec Bird C2-4
3203-3204     3203-3204 395-411 Bird depth out of spec Bird C2-3
3380     3380 419-435 Bird depth out of spec Bird C2-4
3398     3398 ALL Gun timing error Gun 2-3 error (ms) : 1.1
3706     3706 ALL Gun timing error Gun 2-3 error (ms) : 1.1
3920     3920 ALL Gun timing error Gun 2-3 error (ms) : 1.2
4049-4050     4049-4050 75-91 Bird depth out of spec Bird C1-5
4056-4058     4056-4058 99-115 Bird depth out of spec Bird C1-6
4057-4059     4057-4059 51-67 Bird depth out of spec Bird C1-4
4058-4059     4058-4059 123-139 Bird depth out of spec Bird C1-7
4060-4061     4060-4061 99-115 Bird depth out of spec Bird C1-6
4062-4067     4062-4067 51-67 Bird depth out of spec Bird C1-4
4063-4073     4063-4073 123-139 Bird depth out of spec Bird C1-7
4064     4064 99-115 Bird depth out of spec Bird C1-6
4066-4072     4066-4072 99-115 Bird depth out of spec Bird C1-6
4074-4076     4074-4076 99-115 Bird depth out of spec Bird C1-6
4078-4080     4078-4080 75-91 Bird depth out of spec Bird C1-5
4084-4090     4084-4090 51-67 Bird depth out of spec Bird C1-4
4096-4102     4096-4102 99-115 Bird depth out of spec Bird C1-6
Comment
Shot(s)     File(s) Trace(s) Type Remark
1808-1823     1808-1823 419-475 Monowing wash Low frequency, high amplitude noise due to monowing wash
1830-1867     1830-1867 414-491 Monowing wash Low frequency, high amplitude noise due to monowing wash
1849-1872     1849-1872 55-103 Monowing wash Low frequency, high amplitude noise due to monowing wash
1899-1922     1899-1922 53-116 Monowing wash Low frequency, high amplitude noise due to monowing wash


 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 07:38:08utc 01-Dec-2001