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Special Event Log

Party :Monarch Seq#: 136
Survey: 9269 Dir: 286.9
Client :ExxonMobil FSP :3886
Line : G03A1808A136 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: 1.5 m. PITCH: 75%
  • EOL WEATHER: SW @ 10 Knots SEAS: 1.5 m. PITCH: 65%
  • DUMMY FILES : 1
  • BOL NOISE FILE: 2 = 2 Hz.
  • 3 = 8 Hz.
  • EOL NOISE FILE: 2038 = 2 Hz.
  • 2039 = 8 Hz.
  • SPECIAL EVENTS:
  • Constant Bird line leakage affecting cable 1 birds 1-21, cable not used in coverage.
  • Intermittant Bird line leakage affecting cable 4 birds 2-10.
  • SP 2150 to 2100 bend noise at head of cables.
  • EXTERNAL NOISE FROM:
  • AHEAD : NIL
  • ASTERN:
  • Ship noise @ 3000ms moveout, < 5uB RMS. SP 2930-2840
  • ABEAM : SP 1940 to EOL ship noise < 5 uB.
  • 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): 4.9 C(1): 4.9
  • C(2): 4.6 C(2): 4.8
  • C(3): 4.4 C(3): 4.8
  • C(4): 3.9 C(4): 4.6
  • C(5): 3.9 C(5): 4.8
  • C(6): 4.1 C(6): 5.0
  • C(7): 5.1 C(7): 6.0
  • ---------------------------NAVIGATION ------------------------
  • 3590 NAVIGATION TAPE NUMBER: G03A-P294-T10
  • P2 FILE USED: G03A1808A136.0.p294
  • NAVIGATION COMMENTS:
  • Dead at SOL
  • Float GPS: T7R01
  • Acoustics: S3T01, S7T07
  • V1T01 Ranges poor/unuseable
  • Compasses: S2C1, S7C1
  • NAVIGATION ONLINE COMMENTS:
  • Streamer #1 has bird line leakage causing poor acoustic and compass data, not used online.
  • Bird line leakage causing poor acoustic and compass data also affecting front streamer 4.
  • Current change at SP 2210, moving port to compensate for coverage
  • ---------------NAVIGATION PROCESSING----------------
  • FSP: 3886
  • LSP: 1868
  • FEATHER ANGLES
  • MIN: -9.8
  • MAX: 3.7
  • PRIMARY NAVIGATION: Multifix 2 (vesref 3)
  • GYRO USED IN PROCESSING: Spectra gyro 2
  • ACOUSTICS NOT USED: 51101, 52301, 52707
  • FANBEAM NOT USED:
  • GPS TARGETS NOT USED: 64701
  • COMPASSES NOT USED: 1201, 1701
  • SPECIAL COMMENTS:
  • CABLE 1 DELETED IN UNAVCHK D/T CABLE LEAKAGE . CABLES ARE NAMED 1 - 6 IN
  • UNAVCHK WHICH ARE CABLES 2 - 7.
  • Poor acoustic ranges for cable 4 front network.
  • AVEL card used in processing with a value of 1523.0 m/s
  • *********************LINE ACCEPTANCE***************************
  • *****(SIGNING IS ACCEPTANCE OF THE LINE)*****
  • NAVIGATION PROCESSING:_________________________________________________
  • QUALITY CONTROL_____________________________________________
  • SEISMIC PROCESSING__________________________________________
  • COORDINATOR_________________________________________________
  • CLIENT REP.__________________________________________________
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