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Special Event Log

Party :Monarch Seq#: 141
Survey: 9269 Dir: 287
Client :ExxonMobil FSP :3886
Line : G03A2000J141 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: SW @ 10 Knots SEAS: 1 m. PITCH: 75%
  • EOL WEATHER: SW @ 10 Knots SEAS: 1 m. PITCH: 75%
  • DUMMY FILES : na
  • BOL NOISE FILE: 1 = 2 Hz.
  • 2 = 8 Hz.
  • EOL NOISE FILE: 2042 = 2 Hz.
  • 2043 = 8 Hz.
  • SPECIAL EVENTS:
  • Cable 1 not used d/t bird line leakage.
  • Gun 708 disabled BOL d/t electrical leakage.
  • Bird 21 Cable 7 was heavy throughout the line.
  • SP 2644-2599 and SP 2852-2553 with turn noise affecting the first 40 traces from cable 2-4.
  • EXTERNAL NOISE FROM:
  • AHEAD : NIL
  • ASTERN: NIL
  • 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): 5.0 C(1): 3.9
  • C(2): 4.3 C(2): 3.7
  • C(3): 4.1 C(3): 3.8
  • C(4): 3.6 C(4): 3.3
  • C(5): 3.5 C(5): 3.2
  • C(6): 3.9 C(6): 3.1
  • C(7): 4.9 C(7): 4.1
  • ---------------------------NAVIGATION ------------------------
  • 3590 NAVIGATION TAPE NUMBER: G03A-P294-T10
  • P2 FILE USED: G03A2000J141.0.p294
  • NAVIGATION COMMENTS:
  • Dead at SOL
  • Float GPS: T7R01
  • Acoustics: S2T03, S3T01, S7T07
  • V1T01 Ranges poor/unuseable
  • Compasses: S2C1, S7C1
  • NAVIGATION ONLINE COMMENTS:
  • Strm not being used in coverage d/t leakage on comms line
  • Strm 4 front acoustic affected by strm leakage
  • Hit by strong rip current at SP 2632, Robtrack going off track, also sudden change in feather swing south
  • ---------------NAVIGATION PROCESSING----------------
  • FSP: 3886
  • LSP: 1868
  • FEATHER ANGLES
  • MIN: -14.0
  • MAX: 9.2
  • PRIMARY NAVIGATION: Multifix 2 ( Vesref 3 ).
  • GYRO USED IN PROCESSING: Gyro 2.
  • ACOUSTICS NOT USED: 51101,52301,52707.
  • FANBEAM NOT USED:
  • GPS TARGETS NOT USED: 64201,64701,63207.
  • COMPASSES NOT USED: 1201,1701.
  • SPECIAL COMMENTS:
  • Cable DI's Out : 1201,1701.
  • Cable 1 deleted in Unavchk d/t bird line leakage. Unavchk cable 1 - 6 are
  • actual cables 2 - 7.
  • Poor acoustic ranges for Cable 4 front network d/t streamer leakage.
  • *********************LINE ACCEPTANCE***************************
  • *****(SIGNING IS ACCEPTANCE OF THE LINE)*****
  • NAVIGATION PROCESSING:_________________________________________________
  • QUALITY CONTROL_____________________________________________
  • SEISMIC PROCESSING__________________________________________
  • COORDINATOR_________________________________________________
  • CLIENT REP.__________________________________________________
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