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Special Event Log

Party :Monarch Seq#: 134
Survey: 9269 Dir: 286.9
Client :ExxonMobil FSP :3986
Line : G03A1824A134 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: light @ 0 Knots SEAS: 1 m. PITCH: 67%
  • EOL WEATHER: light @ 0 Knots SEAS: 1 m. PITCH: 70%
  • DUMMY FILES : 45-144
  • BOL NOISE FILE: 1 = 2 Hz.
  • 2 = 8 Hz.
  • EOL NOISE FILE: 1837 = 2 Hz.
  • 1838 = 8 Hz.
  • SPECIAL EVENTS:
  • Gun 706 disabled @ BOL,air leak.
  • SP 3072 LGSP before whale sighting.
  • SP 2726 FGSP of restart. D.N.P. SP 3071 to 2727.
  • Sp 2520 Bird 15 cable 3 developed bad DI
  • Cross current noise affecting all cable from SP 2300-SP 2070.
  • See edit page for details.
  • EXTERNAL NOISE FROM:
  • AHEAD : NIL
  • ASTERN: NIL
  • ABEAM : NIL
  • BAD BIRD DIs
  • C(1): NIL
  • C(2): 1 dead
  • C(3): 4 bad D.I.
  • C(4): 12 bad D.I.
  • C(5): 11 bad D.I.
  • 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): BOL 601 disabled showing 8 meters.
  • 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): 3.6 C(1): 4.4
  • C(2): 2.9 C(2): 4.4
  • C(3): 3.0 C(3): 4.5
  • C(4): 2.5 C(4): 4.3
  • C(5): 3.0 C(5): 4.8
  • C(6): 3.0 C(6): 5.0
  • C(7): 3.6 C(7): 5.5
  • ---------------------------NAVIGATION ------------------------
  • 3590 NAVIGATION TAPE NUMBER: G03A-P294-T10
  • P2 FILE USED: G03A1824A134.0.p294
  • NAVIGATION COMMENTS:
  • Dead at SOL
  • Float GPS: T7R01
  • Acoustics: S2T03, S3T01, S7T07
  • V1T01 Ranges poor/unuseable
  • Compasses: S2C1, S7C1
  • NAVIGATION ONLINE COMMENTS:
  • Coil line leakage also affecting tail of strm 5 after SP 2720
  • Affected by sudden change in current at SP 2315. Moving to port to compensate but leaving holes of grp 1
  • ---------------NAVIGATION PROCESSING----------------
  • FSP: 3886
  • LSP: 1868
  • FEATHER ANGLES
  • MIN: -16.0
  • MAX: 0.4
  • PRIMARY NAVIGATION: Multifix 2 ( Vesref 3 ).
  • GYRO USED IN PROCESSING: Gyro 2.
  • ACOUSTICS NOT USED: 51101,52707,52301.
  • FANBEAM NOT USED:
  • GPS TARGETS NOT USED: 64301,64701.
  • COMPASSES NOT USED: 1101,1201,1617,1701.
  • SPECIAL COMMENTS:
  • Cable DI's Out : 1101,1201,1304,1412,1511,1701.
  • Seismic Gap d/t whales SP's 3071 - 2727.
  • Tail acoustic ranges poor for cable 5. SP's 2852 - 2123 no ranges between cable 4 & 5 in tail net.
  • BOL - sp 2974 no data for rGPS tailbuoy 2.
  • Strong current toward EOL causing large movement in tailnet.
  • *********************LINE ACCEPTANCE***************************
  • *****(SIGNING IS ACCEPTANCE OF THE LINE)*****
  • NAVIGATION PROCESSING:_________________________________________________
  • QUALITY CONTROL_____________________________________________
  • SEISMIC PROCESSING__________________________________________
  • COORDINATOR_________________________________________________
  • CLIENT REP.__________________________________________________
  • Return to Line List