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Special Event Log

Party :Monarch Seq#: 50
Survey: 9269 Dir: 107.1
Client :ExxonMobil FSP :2622
Line : G03A1312A050 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: 1.5 m. PITCH: 79%
  • EOL WEATHER: ENE @ 20 Knots SEAS: 1.5 m. PITCH: 79%
  • DUMMY FILES : 3-35
  • BOL NOISE FILE: 1 = 2 Hz.
  • 2 = 8 Hz.
  • EOL NOISE FILE: 1434 = 2 Hz.
  • 1435 = 8 Hz.
  • SPECIAL EVENTS: FGSP 2870 d/t Ship noise. LGSP 3700 d/t Swell bursts.
  • Gun DI are erratic d/t sea state 1.5m
  • Intermittent swell noise on streamers d/t WX ENE @ 20 Knts, Sea @ 1.5m.
  • The swell noise has appeared to increase with water depth.
  • BOL - Sp 2884 Ship noise
  • 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 Intermittent
  • 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): 4.2 C(1): 3.3
  • C(2): 4.1 C(2): 3.4
  • C(3): 3.9 C(3): 3.6
  • C(4): 4.0 C(4): 4.6
  • C(5): 3.9 C(5): 5.5
  • C(6): 3.9 C(6): 4.1
  • C(7): 3.9 C(7): 5.3
  • C(8): 4.4 C(8): 3.0
  • ---------------------------NAVIGATION ------------------------
  • 3590 NAVIGATION TAPE NUMBER:
  • P2 FILE USED:
  • NAVIGATION COMMENTS:
  • ---------------NAVIGATION PROCESSING----------------
  • FSP:2870
  • LSP:3700
  • FEATHER ANGLES
  • MIN:9.8
  • MAX:13.9
  • 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 1406 1714 1801
  • SPECIAL COMMENTS:
  • Shots 2870-3700 processed. Other shots DNP d/t noise/sea state.
  • Tailbuoys 4, 6, and 8 dropping out during line.
  • Noisy rGPS during line due to sea state and interferance.
  • Some noisy compasses due to sea state.
  • Cable DI out: 1801 1602 1201
  • DI's 1104-1109, 1418, 1714, 1805-1809 erratic. DI's 1204 & 1304 deep.
  • Line processed backwards due to non-convergence at start of line. Noisy network due to sea conditions.
  • *********************LINE ACCEPTANCE***************************
  • *****(SIGNING IS ACCEPTANCE OF THE LINE)*****
  • NAVIGATION PROCESSING:_________________________________________________
  • QUALITY CONTROL_____________________________________________
  • SEISMIC PROCESSING__________________________________________
  • COORDINATOR_________________________________________________
  • CLIENT REP.__________________________________________________
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