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Special Event Log

Party :Monarch Seq#: 124
Survey: 9269 Dir: 286.9
Client :ExxonMobil FSP :3886
Line : G03A1936B124 LSP :1868
Comments
  • GENERAL SURVEY PARAMETERS: Gippsland Basin
  • RECORDING SYSTEM : MSX / CRS
  • STREAMERS : 7 X 5000 METERS
  • STREAMER SEPARATION: 100 METERS
  • TOTAL CHANNELS : 2800
  • RECORDING FILTERS
  • LOW CUT : 2 Hz/12 dB per oct.
  • HIGH CUT : 206 Hz/264 dB per oct.
  • STREAMER DEPTH : 9 METERS
  • RECORD LENGTH : 6.5 SECONDS
  • SHOT POINT INTERVAL: 18.75 METERS
  • GROUP INTERVAL : 12.5 METERS
  • SOURCE DEPTH : 8 METERS (DI s ARE 1 METER ABOVE THE GUN)
  • SOURCE VOLUME : 3000 CUBIC INCHES X 2
  • SOURCE SEPARATION : 50 METERS
  • CENTER OF SOURCE TO CABLE REFERENCE POINT: 126 METERS
  • CENTER OF SOURCE TO CABLE LAST GROUP : 5102 METERS
  • ---------------------------------------------------------------
  • BOL WEATHER: WSW @ 10 Knots SEAS: 2.0 m. PITCH: 75%
  • EOL WEATHER: W @ 10 Knots SEAS: 1.5 m. PITCH: 70%
  • DUMMY FILES :
  • BOL NOISE FILE: 1 = 2 Hz.
  • 2 = 8 Hz.
  • EOL NOISE FILE: 2063 = 2 Hz.
  • 2064 = 8 Hz.
  • SPECIAL EVENTS:
  • Swell noise affecting less than 5% of traces @ SOL, dropping through line.
  • Swell noise no longer affecting traces @ SP 3100
  • Firing pressures down approx 2-3% of nominal from SOL to SP 3680
  • Gun 508 disabled on SP 3676
  • Cable #6 powered down on SPs 2811-2808.
  • Depth instability Cable 2 birds 3-6 SPs 2360-2280 d/t strong tail current.
  • EXTERNAL NOISE FROM:
  • AHEAD :
  • ASTERN:
  • Minor ship noise from astern due to tanker. 2900ms moveout. 5uB. SP 3620-3500.
  • ABEAM : NIL
  • BAD BIRD DIs
  • C(1): NIL
  • C(2): 1 dead
  • C(3): NIL
  • C(4): NIL
  • C(5): NIL
  • C(6): NIL
  • C(7): 1 dead
  • BAD GUN DIs
  • GS(1): NIL
  • GS(2): NIL
  • GS(3): NIL
  • GS(4): NIL
  • GS(5): NIL
  • GS(6): NIL
  • GS(7): NIL
  • GS(8): NIL
  • BAD GUN PIs
  • GS(1): NIL
  • GS(2): NIL
  • GS(3): NIL
  • GS(4): NIL
  • GS(5): NIL
  • GS(6): NIL
  • GS(7): NIL
  • GS(8): NIL
  • BOL NOISE: EOL NOISE:
  • C(1): 4.5 C(1): 2.2
  • C(2): 5.5 C(2): 2.0
  • C(3): 5.0 C(3): 2.1
  • C(4): 4.9 C(4): 2.1
  • C(5): 4.1 C(5): 1.7
  • C(6): 4.6 C(6): 2.1
  • C(7): 5.5 C(7): 2.4
  • ---------------------------NAVIGATION ------------------------
  • 3590 NAVIGATION TAPE NUMBER: G03A-P294-T09
  • P2 FILE USED: G03A1936B124.0.p294
  • NAVIGATION COMMENTS:
  • Dead at SOL
  • Float GPS: T7R01
  • Acoustics: S2T03, S3T01, S7T07
  • V1T01 Ranges poor/unuseable
  • Compasses: S2C1, S7C1
  • NAVIGATION ONLINE COMMENTS:
  • SPs 2473-2428 Multifix #1 & #2 crashed, no corrections
  • SP 2406 very strong Southerly current causing hole in coverage
  • ---------------NAVIGATION PROCESSING----------------
  • FSP: 3886
  • LSP: 1868
  • FEATHER ANGLES
  • MIN: -15.0
  • MAX: 8.3
  • PRIMARY NAVIGATION: Posnet 2 (vesref 2)
  • GYRO USED IN PROCESSING: Spectra gyro 2
  • ACOUSTICS NOT USED: 51101, 52301, 52303, 52707
  • FANBEAM NOT USED:
  • GPS TARGETS NOT USED: 64701
  • COMPASSES NOT USED: 1201, 1701, 1101
  • SPECIAL COMMENTS:
  • Posnet 2 is Pime Navigation d/t Dropout in Multifix 2 .
  • *********************LINE ACCEPTANCE***************************
  • *****(SIGNING IS ACCEPTANCE OF THE LINE)*****
  • NAVIGATION PROCESSING:_________________________________________________
  • QUALITY CONTROL_____________________________________________
  • SEISMIC PROCESSING__________________________________________
  • COORDINATOR_________________________________________________
  • CLIENT REP.__________________________________________________
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