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Dive into crucial deep-sea research areas derived from failure modeling of the BP Oil Spill. Explore insights into seabed events, gas hydrates, bubble behavior, oil outgassing, and more. Unravel mysteries and complexities of deep-sea ecosystems impacted by oil spills through scientific analysis and data interpretation.
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Critical Deep Sea Research Areas Derived from Failure Modeling of the Great BP Oil Spill
Critical Deep Sea Research Areas Derived from Failure Modeling of the Great BP Oil Spill Ira Leifer University of California, Santa Barbara Hydrate Consortium Meeting, Oct. 27 2010
Yes! Note: joke about the spherical cow!
Model Schematic If you care… see Rehder et al. 2009
Does the model work (above HSF)? Rehder et al. 2009
COP Seep Field Blowout - 0.4 m3/s Pre-ejection t = 0.6 s t = 1.2 s Vup ~ 2 - 3 m/s Leifer et al. 2006 Leifer et al. 2010
Hydrate-free Deep Bubbles Vup = 30 cm/s
Data… Camilli et al. 2010 Methane (and oil) in a 1100 m layer C2+ in surface layer C5+ in atmosphere in a plume structure in reservoir ratios (NOAA, P3, Ryerson) C3-C5 (isomers, etc) proportional to solubility (NOAA, P3, Ryerson)
Remote Sensing Detour(2)(Physics-based quantitative oil thickness)
Remote Sensing Detour(4) Fig. 14b. Mapping results for oil-to-water ratio for a portion of AVIRIS run 11. The width of the scene is ~5.5 km; north is ~4 o'clock. Black areas on the right are where no thick oil was detected. The center of this image is about 12 km WSW of the incident site.
Remote Sensing Detour(5) Fig. 14b. Mapping results for oil-to-water ratio for a portion of AVIRIS run 11. The width of the scene is ~5.5 km; north is ~4 o'clock. Black areas on the right are where no thick oil was detected. The center of this image is about 12 km WSW of the incident site. Key pt: Fresh Oil reaches surface in coherent patches
Summary… C1 (and oil) in a 1100 m layer C2+ in surface layer peaked at about the thermocline Oil surfaces in a plume C5+ in atmosphere in a plume structure in reservoir ratios (NOAA, P3, Ryerson) C3-C5 (isomers, etc) proportional to solubility (NOAA, P3, Ryerson) Vertical distribution not a decreasing exponential No evidence of bubbles reaching the sea surface HyFlux - Methane reaches the sea surface, bubbles to 150 m
Summary… C1 (and oil) in a 1100 m layer C2+ in surface layer peaked at about the thermocline Oil surfaces in a plume C5+ in atmosphere in a plume structure in reservoir ratios (NOAA, P3, Ryerson) C3-C5 (isomers, etc) proportional to solubility (NOAA, P3, Ryerson) Vertical distribution not a decreasing exponential No evidence of bubbles reaching the sea surface HyFlux - Methane reaches the sea surface, bubbles to 150 m Data Inconsistent with Bubbles Wait... talk not over….
Field Plume Behavior (COP) Slows at thermocline intrusion
Field Plume Behavior (GOM) Solomon et al 2009
Deep Spill 1 (Norway) No bubble detrainment, large (2 mm) bubbles
A hypothesis model Oil Outgassing Oil OutGases Oil Driven Plume Bubble Driven Plume
Areas for research >what happened at 1100 m? >What is the behavior of an oil driven plume? >How does oil outgas in the mid-water column?