Indonesia Frontier Basin SUNDA (SU-08) NON-EXCLUSIVE 2-D SURVEY 3084km
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1 Indonesia Frontier Basin SUNDA (SU-08) NON-EXCLUSIVE 2-D SURVEY 3084km SEISMIC ACQUISITION PARAMETERS Acquisition Date: January - March 2008 Vessel: M/V Osprey Explorer Shooting Orientation: Strike-Dip Recording Instrument: Syntrak Seal 24 bit Streamer Type: Sercel Seal Streamer Positioning: C-Nav DGPS Airgun Source: 3820 cu. In. Bolt LL-X 1900, LL-X 1500 Gun Depth: 6m Shotpoint Interval: 37.5m Group Interval: 12.5m Recording Channels: 564 Streamer Depth: 7m +/- 1m Streamer Length: 7050 metres Record Length: 12sec Sample Interval: 2ms Nominal Fold: 94 Recording format and media type: SEG-D 3590 Cartridges
2 SEISMIC PROCESSING SEQUENCE SEISMIC AVAILABLE DELIVERABLES Filtered 2D Migration Angle Stacks Final velocities Final Acquisition &Processing Reports Navigation Data Optional Data Available: o Radon Gathers o PSTM Gathers o Field Data
3 ACEH NON-EXCLUSIVE SEA SEEP SURVEY Multibeam 26,619sq km Gravity/Magnetics 7,792 km Sea Floor Cores 76 Total Geochem samples 198 Heat Flow Probes 3 MISOOL MULTIBEAM ACQUISITION PARAMETERS Acquisition Date: August - September 2007 Vessel: M/V L Espoir Shooting Orientation: 3D coverage Survey Positioning Control C-Nav Starfire DGPS Multibeam Echo Sounder: Kongsberg Simrad EM120 No. of beams: 191 equidistant spacing Cross Track Beam Spacing: +/- 23m In track Beam spacing: +/- 50m Backscatter Mosaicing Software: Konsberg Simrad Poseidon Single Beam Echo Sounder: EA400 Knudsen Sub Bottom Profile Source: Massa 137D16 element (4x4) transducer Power Supply: Knudsen Receiver: Knudsen Mode: Chirp Maximum Penetration: 80m Average Penetration: 20m Gravity Acquisition Instrumentation: ZLS Ultrasys Marine System Sensor: Dynamic Gravity Sensor D003 Settings: High Resolution 1 sec interval Magnetometer: Geometrics 882 Self oscillating split beam Caesium Vapour Magnetometer Cable: 200m streamed at 7m depth BATHYMETRY AND BACKSCATTER PROCESSING SEQUENCE Bathymetry Line by line processing Position Processing Depth Processing tidal and calibration corrections Data Cleaning random noise and artefacts Terrain Modeling 25m bin size Gridding and export to ESRI format Backscatter Line by line processing Position Processing Depth Processing tidal and calibration corrections Data Cleaning random noise and artefacts Load into Poseidon Backscatter data set to -5dB to -60dB dynamic range 5m binning Gridding and export to ESRI format KNUDSEN CHIRP PROCESSING SEQUENCE Recorded in SEGY format and Knudsen.keb format Assumed velocity 1700m/sec Output to SEGY Filter and Ping Settings optimized Output to Knudsen.keb
4 MULTIBEAM, GRAV/MAG, and SUB BOTTOM PROFILE AVAILABLE DELIVERABLES Multibeam bathymetry grid (25x25 meter resolution) Multibeam backscatter grid (5x5 meter resolution; in db) Gravity data grids Free Air (integrated with satellite gravity Free Air (survey only) Full 3D Bouguer Gravity Magnetic data grids Total Magnetic Field Reduced to Pole Magnetic Anomaly Gravity and Magnetic processing report Subbottom profile data knudsen files Subbottom profile data Kingdom project ships navigation GIS maps showing: o Bathymetry (Grids and contours) o Backscatter (Grids) o Gravity (Grids and Contours) o Magnetics (Grids and Contours)
5 SEA FLOOR CORING AND HEAT FLOW PROBE ACQUISITION PARAMETERS Acquisition Date: March 2008 Vessel: RV Geoexplorer Shooting Orientation: Targeted piston cores and Heat Flow Probes Coring Mechanism: Weighted Piston Core with trigger assembly Core Length: 6m Core Assembly Weight: 900kg Core liner: Butyrate Heat Flow Probe: Lister Type Probe Sensors: 11 x glass bead thermistors Heat Flow Probe Penetration: 5.5m SEA FLOOR CORE AND HEAT PROBE PROCESSING SEQUENCE SEA FLOOR CORES Cores cut into 20cm sections Test for Total Scanning Fluorescence Test for C15+ Test for Head Space Gas Exude any materials for Biomarker testing Seal and Store samples at -15 to -20 deg C Transport to Lab Geochemical Laboratory Analysis HEAT PROBES Data selection based on penetration time and heat pulse Data Reduction using HFRED Construction of Bullard Plots Interpretation of Results SEA FLOOR CORING AND HEAT FLOW PROBE AVAILABLE DELIVERABLES Coring and Heat Flow acquisition Report for each Basin Standard geochemistry of normally 3 samples per core; o Head space gas analysis o Total scanning fluorescence o GC C15+ Advanced geochemical analysis (only on samples with significant hydrocarbons present) o Aliphatic and Aromatic Biological Markers o Stable Carbon Isotopes on methane o Stable Carbon Isotopes, C2, C3 and C4 components Geochemistry and Heat Flow report for each basin GIS maps showing o Core and Heat Flow locations o core recovery o geochemistry results o heat flow results
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