Til hovedinnhold

Intercomparison of oil spill prediction models for accidental blowout scenarios with and without subsea chemical dispersant injection

Intercomparison of oil spill prediction models for accidental blowout scenarios with and without subsea chemical dispersant injection

Kategori
Tidsskriftspublikasjon
Sammendrag
We compare oil spill model predictions for a prototype subsea blowout with and without subsea injection of chemical dispersants in deep and shallow water, for high and low gas–oil ratio, and in weak to strong crossflows. Model results are compared for initial oil droplet size distribution, the nearfield plume, and the farfield Lagrangian particle tracking stage of hydrocarbon transport. For the conditions tested (a blowout with oil flow rate of 20,000 bbl/d, about 1/3 of the Deepwater Horizon), the models predict the volume median droplet diameter at the source to range from 0.3 to 6 mm without dispersant and 0.01 to 0.8 mm with dispersant. This reduced droplet size owing to reduced interfacial tension results in a one to two order of magnitude increase in the downstream displacement of the initial oil surfacing zone and may lead to a significant fraction of the spilled oil not reaching the sea surface.
Språk
Engelsk
Forfatter(e)
  • Socolofsky Scott A.
  • Adams E. Eric
  • Boufadel Michel C.
  • Aman Zachary M.
  • Johansen Øistein
  • Konkel Wolfgang J.
  • Lindo David
  • Madsen Mads N.
  • North Elizabeth W.
  • Paris Claire B.
  • Rasmussen Dorte
  • Reed Mark
  • Rønningen Petter
  • Sim Lawrence H.
  • Uhrenholdt Thomas
  • Anderson Karl G.
  • Cooper Cortis
  • Nedwed Tim J.
Institusjon(er)
  • Texas A&M University-College Station
  • Massachusetts Institute of Technology (MIT)
  • New Jersey Institute of Technology
  • The University of Western Australia
  • SINTEF Ocean / Miljø og nye ressurser
  • Exxon Mobil Corporation
  • University of Miami
  • DHI
  • University of Maryland
  • USA
  • Shell US
  • Chevron
År
2015
Publisert i
Marine Pollution Bulletin
ISSN
0025-326X
Årgang
96
Hefte nr.
1-2
Side(r)
110 - 126