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Special Event Log

Party :Monarch Seq#: 165
Survey: 9269 Dir: 287
Client :ExxonMobil FSP :3886
Line : G03A2224I165 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: SE @ 15 Knots SEAS: 1.5 m. PITCH: 65%
  • EOL WEATHER: SE @ 15 Knots SEAS: 1.5 m. PITCH: 65%
  • DUMMY FILES : N/A
  • BOL NOISE FILE: 1 = 2 Hz.
  • 2 = 8 Hz.
  • EOL NOISE FILE: 2061 = 2 Hz.
  • 2062 = 8 Hz.
  • SPECIAL EVENTS:
  • Swell noise affecting 5% of traces on cables 1-3, decreasing through line
  • Swell noise affecting 10% of traces on cables 4-7, decreasing through line
  • *** Line NTBP d/t swell noise SP 3886 - 3064 ***
  • *** SP 3063- moved across to reshoot sequence 161, sail line 2240 ***
  • Swell noise from SP 3060 onwards:
  • affecting <5% of traces cables 1-3
  • affecting 5-10% of traces cables 4-7
  • Birds 5-8 cable 7 deep d/t vane wash SP 2790-2710, max depth 13m
  • Birds 9-11 cable 7 deep d/t vane wash SP 2730-2710, max depth 11m
  • Birds 5-8 cable 7 deep d/t vane wash SP 2660-2630, max depth 11m
  • EXTERNAL NOISE FROM:
  • AHEAD : NIL
  • ASTERN: NIL
  • ABEAM : Possible Ship noise, ahead / abeam, SP 3010-2800, 10uB, decreasing throughout. Possibly multiple energy, ship passing @ 6 km
  • BAD BIRD DIs
  • C(1): NIL
  • C(2): 1 dead
  • C(3): 15 bad DI
  • C(4): NIL
  • C(5): NIL
  • C(6): 6 bad DI
  • C(7): 1 dead, 17 deep
  • BAD GUN DIs
  • GS(1): NIL
  • GS(2): NIL
  • GS(3): NIL
  • GS(4): NIL
  • GS(5): NIL
  • GS(6): #607 disabled
  • 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): 4.8 C(1): 7.0
  • C(2): 4.5 C(2): 6.5
  • C(3): 4.5 C(3): 5.2
  • C(4): 4.1 C(4): 3.9
  • C(5): 4.0 C(5): 4.3
  • C(6): 3.8 C(6): 4.3
  • C(7): 4.8 C(7): 5.2
  • ---------------------------NAVIGATION ------------------------
  • 3590 NAVIGATION TAPE NUMBER: G03A-P294-T10
  • P2 FILE USED: G03A2224I165.0.p294
  • NAVIGATION COMMENTS:
  • Dead at SOL
  • Float GPS: T7R01, T2R01
  • Acoustics: S3T01, S7T07
  • Compasses: S2C1, S7C1, S5C14
  • NAVIGATION ONLINE COMMENTS:
  • Client DNP'd SOL-3064 due to swell noise.
  • 3063 - First overlap shotpoint for the reshoot line 2224A163.
  • 3053 - First good shotpoint for the reshoot.
  • ---------------NAVIGATION PROCESSING----------------
  • FSP: 3886
  • LSP: 1868
  • FEATHER ANGLES
  • MIN: -9.5
  • MAX: 0.1
  • PRIMARY NAVIGATION: Multifix 2 (vesref 3)
  • GYRO USED IN PROCESSING: Spectra gyro 2
  • ACOUSTICS NOT USED: 52301, 52707
  • GPS TARGETS NOT USED: 63103, 64201, 64701
  • COMPASSES NOT USED: 1201, 1610, 1701
  • SPECIAL COMMENTS:
  • FGSP of this line is 3063 d/t swell noise
  • *********************LINE ACCEPTANCE***************************
  • *****(SIGNING IS ACCEPTANCE OF THE LINE)*****
  • NAVIGATION PROCESSING:_________________________________________________
  • QUALITY CONTROL_____________________________________________
  • SEISMIC PROCESSING__________________________________________
  • COORDINATOR_________________________________________________
  • CLIENT REP.__________________________________________________
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