Ocean Bottom Node Acquisition

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OBN <strong>Acquisition</strong> – Why is it done? Lomond field, North Sea Alba field, North Sea PP PS Grane field, North Sea Converted wave imaging Shown are classic OBC examples Beaudoin, SEG 2010 Fjellanger et al, SEG 2006 www.fugro.com
Why Converted Waves? PP AVO inversion P impedance PS AVO inversion Shear impedance PP & PS = Improved reservoir characterisation ..also better handle on density. PP PS Strong shear impedance contrast from lithology change within reservoir zone. Kvitebjorn field, North Sea Ao & Areklett, TLE 2010 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: OBN Acquisition - Why is it done?
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 and 24: OBN Acquisition Full azimuth survey
Page 25 and 26: OBN Acquisition - Full azimuth surv
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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