Ocean Bottom Node Acquisition

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OBN Acquisition – Full azimuth survey Basic node survey design consists of regular node grid and encompassing shot grid. Illustration of contributing receivers/shots for two example bins: Centre bin Corner bin Shot area Node area Bin Contributing shot locations Shot area Node area Contributing node locations Bin www.fugro.com
OBN Acquisition – Full azimuth survey Rose diagram – Offset/azimuth fold: (similar OBN survey) Poor near offset fold?? Offset fold diagram for the 2 example bins: www.fugro.com
Page 1 and 2: Ocean Bottom Node Acquisition 8 Mar
Page 3 and 4: Outline • OBN Acquisition - Why i
Page 5 and 6: OBN Acquisition - Why is it done? A
Page 7 and 8: OBN Acquisition - Why is it done? B
Page 9 and 10: OBN Acquisition - Why is it done? D
Page 11 and 12: OBN Acquisition - Why is it done?
Page 13 and 14: Why Converted Waves? PP AVO inversi
Page 15 and 16: OBN Acquisition Equipment and node
Page 17 and 18: OBN Equipment - Nodes Option 2: Han
Page 19 and 20: OBN Equipment - Node Handling ROV N
Page 21 and 22: OBN Operation - Node Placement Unpe
Page 23: OBN Acquisition Full azimuth survey
Page 27 and 28: OBN Acquisition - Full azimuth surv
Page 29 and 30: Continuous recorded data DC shift
Page 31 and 32: OBN Data processing Raypath geometr
Page 33 and 34: OBN Data processing - Multiple path
Page 35 and 36: OBN Data processing - Multiple path
Page 37 and 38: OBN Data processing - Low frequency
Page 39 and 40: OBN Acquisition - Summary Upsides
Page 41 and 42: Spectral analysis Shot fired 5 1 6
Page 43 and 44: Spectral analysis Shot fired ROV ho
Page 45 and 46: Spectral analysis Continuous data s
Page 47 and 48: OBN Survey - Node layout • 1595 t
Page 49 and 50: OBN Survey - Roll-along acquisition
Page 57: OBN Survey - Roll-along acquisition

Ocean Bottom Node Acquisition

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