GENERAL SURVEY PARAMETERS: Gippsland BasinRECORDING SYSTEM : MSX / CRS STREAMERS : 7 X 5000 METERS STREAMER SEPARATION: 100 METERS TOTAL CHANNELS : 2800RECORDING 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 SECONDSSHOT POINT INTERVAL: 18.75 METERSGROUP INTERVAL : 12.5 METERSSOURCE DEPTH : 8 METERS (DI s ARE 1 METER ABOVE THE GUN)SOURCE VOLUME : 3000 CUBIC INCHES X 2SOURCE SEPARATION : 50 METERSCENTER OF SOURCE TO CABLE REFERENCE POINT: 126 METERSCENTER OF SOURCE TO CABLE LAST GROUP : 5102 METERS---------------------------------------------------------------BOL WEATHER: SE @ 25 Knots SEAS: 2.0 m. PITCH: 75%EOL WEATHER: ESE @ 20 Knots SEAS: 2.0 m. PITCH: 70%DUMMY FILES : 3-13 BOL NOISE FILE: 1 = 2 Hz. 2 = 8 Hz. EOL NOISE FILE: 2059 = 2 Hz. 2060 = 8 Hz.SPECIAL EVENTS:Minor swell noise, affecting 2-3% of traces troughout line, increasing slightly towards EOL.Minor bend noise on mid - mid fars at SOL - SP 2020 due to tight line turn to avoid rigs.EXTERNAL NOISE FROM:AHEAD :Rig / ship noise from ahead, 2500ms moveout, < 5uB RMS. SPs 2050 - 2200ASTERN: NILPossible Ship noise astern, 2500ms moveout, approx 8-10uB RMS. SP 3650-3800(Possibly multiple energy but tanker astern of vessel at time of shooting).ABEAM : NIL BAD BIRD DIsC(1): NILC(2): 1 deadC(3): NILC(4): Bird #12 bad D.I. C(5): 11 no depth control, running in spec.C(6): NILC(7): 1 deadBAD GUN DIsGS(1): NILGS(2): NILGS(3): NILGS(4): NILGS(5): NILGS(6): NILGS(7): NIL
GS(8): NIL
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BAD GUN PIsGS(1): NIL GS(2): NILGS(3): NIL GS(4): NILGS(5): NILGS(6): NIL GS(7): NIL GS(8): NILBOL NOISE: EOL NOISE: C(1): 6.0 C(1): 3.3 C(2): 5.8 C(2): 2.7 C(3): 5.4 C(3): 2.7 C(4): 6.5 C(4): 2.6 C(5): 5.5 C(5): 2.2 C(6): 6.4 C(6): 2.4 C(7): 5.0 C(7): 2.5Bend noise and fast speed on SOL noise record d/t tight turn to avoid rig.
Speed dropped to below 4.5 kn through water for SOL. |
---------------------------NAVIGATION ------------------------3590 NAVIGATION TAPE NUMBER: G03A-P294-T09P2 FILE USED: G03A1744A131.0.p294NAVIGATION COMMENTS: Dead at SOLFloat GPS: T7R01,T5R01Acoustics: S3T01, S3T03, S7T07 V1T01 Ranges poor/unuseableCompasses: S2C1, S7C1NAVIGATION ONLINE COMMENTS: SP's 2625-2705 - Multifix 1 and Posnet 1 has no corrections SP's 3208-3288 - Multifix 1 and Posnet 1 has no corrections
From SP 2740 - No data receive from tailbouy #5. |
---------------NAVIGATION PROCESSING----------------FSP: 2001LSP: 4019FEATHER ANGLESMIN: 0.3MAX: 10.6PRIMARY NAVIGATION: Posnet 1 (vesref 1)GYRO USED IN PROCESSING: Spectra gyro 2ACOUSTICS NOT USED: 51101, 52301, 52303, 52707FANBEAM NOT USED:GPS TARGETS NOT USED: 64501m 64701, 63205COMPASSES NOT USED: 1101, 1201, 1701, 1617
SPECIAL COMMENTS:
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*********************LINE ACCEPTANCE*************************** *****(SIGNING IS ACCEPTANCE OF THE LINE)*****NAVIGATION PROCESSING:_________________________________________________QUALITY CONTROL_____________________________________________SEISMIC PROCESSING__________________________________________COORDINATOR_________________________________________________
CLIENT REP.__________________________________________________ |
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