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Special Event Log

Party :Monarch Seq#: 72
Survey: 9269 Dir: 107.1
Client :ExxonMobil FSP :2622
Line : G03A1584A072 LSP :4019
Comments
  • GENERAL SURVEY PARAMETERS: Gippsland Basin
  • RECORDING SYSTEM : MSX / CRS
  • STREAMERS : 8 X 5000 METERS
  • STREAMER SEPARATION: 100 METERS
  • TOTAL CHANNELS : 3200
  • 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: 206 METERS
  • CENTER OF SOURCE TO CABLE LAST GROUP : 5182 METERS
  • ---------------------------------------------------------------
  • BOL WEATHER: ENE @ 20 Knots SEAS: 1.0 m. PITCH: 77%
  • EOL WEATHER: ENE @ 20 Knots SEAS: 1.0 m. PITCH: 77%
  • DUMMY FILES : 3-40
  • BOL NOISE FILE: 1 = 2 Hz.
  • 2 = 8 Hz.
  • EOL NOISE FILE: 1439 = 2 Hz.
  • 1440 = 8 Hz.
  • SPECIAL EVENTS:
  • Weak ship noise visible from abeam. apx.10uBar. during SOL noise record
  • Weak ship noise Sps 3395-3800.
  • EXTERNAL NOISE FROM:
  • AHEAD : NIL
  • ASTERN: NIL
  • ABEAM : NIL
  • BAD BIRD DIs
  • C(1): NIL
  • C(2): NIL
  • C(3): NIL
  • C(4): NIL
  • C(5): NIL
  • C(6): 02 Reading Shallow
  • C(7): NIL
  • C(8): 21
  • 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): 5.9 C(1): 3.3
  • C(2): 5.7 C(2): 2.9
  • C(3): 5.4 C(3): 2.7
  • C(4): 5.3 C(4): 2.8
  • C(5): 5.2 C(5): 3.0
  • C(6): 5.3 C(6): 3.0
  • C(7): 5.1 C(7): 2.8
  • C(8): 5.5 C(8): 3.5
  • Weak ship noise visible from abeam. apx.10uBar. during SOL noise record
  • ---------------------------NAVIGATION ------------------------
  • 3590 NAVIGATION TAPE NUMBER:
  • P2 FILE USED:
  • NAVIGATION COMMENTS:
  • ---------------NAVIGATION PROCESSING----------------
  • FSP: 2622
  • LSP: 4019
  • FEATHER ANGLES
  • MIN: 2.7
  • MAX: 10.7
  • PRIMARY NAVIGATION: MFIX_2_Optus ( VESREF 3 )
  • GYRO USED IN PROCESSING: Gyro 2
  • ACOUSTICS NOT USED: 51101 52203 52301 52507
  • FANBEAM NOT USED:
  • GPS TARGETS NOT USED: 64101 64501
  • COMPASSES NOT USED: 1201 1801
  • SPECIAL COMMENTS:
  • Noisy rGPS due to weather conditions.
  • PosNet gyro drift during line.
  • Cable DI out: 1201 1602 1801
  • DI 1821 deep and erratic.
  • Line processed backwards due to non convergence at start of line.
  • GELB extended iterating Kalman filter used for shotpoints 2622-3000 due to
  • dynamics during line.
  • TriNav GPS bad during line.
  • *********************LINE ACCEPTANCE***************************
  • *****(SIGNING IS ACCEPTANCE OF THE LINE)*****
  • NAVIGATION PROCESSING:_________________________________________________
  • QUALITY CONTROL_____________________________________________
  • SEISMIC PROCESSING__________________________________________
  • COORDINATOR_________________________________________________
  • CLIENT REP.__________________________________________________
  • Return to Line List