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SUMMARY:CESS Seminar : A phase-field model for fracture and its applicatio
 ns in geoscience
DTSTART:20231027T121500
DTEND:20231027T131500
DTSTAMP:20260916T063406Z
UID:512d02d4cc139a30ad96338039250cf09f28f31fc521b7ef34c1a43e
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Keita Yoshioka - Montanuniversität Leoben\nAbstract:\nF
 racturing is applied to stimulate wells in hydrocarbon and geothermal ener
 gy production. In well stimulation operations\, fractures are deliberately
  created\, but they are something to avoid or to be controlled in undergro
 und energy and CO2 storage or nuclear waste disposal. This shift in the fo
 cus prompts us to study not only propagation but also nucleation of fractu
 res. And subsequently we need simulation capabilities for both propagation
  and nucleation.\n\nIn this presentation\, Pr. Keita Yoshioka will briefly
  go over a phase-field model\, which has witnessed contagious popularity o
 riginated from the mechanics community to the geo-community. Part of this 
 success is because of its ability to capture complex fracture behaviors\, 
 including nucleation and propagation along complex unknown path in 2 and 3
  dimensions without the need for ad-hoc criteria and geometric restriction
 s on crack path. He will then focus on its applications and necessary adap
 tations for hydraulic fracturing with some comparative examples. Finally\,
  he will close his talk with some application examples in complex hydrauli
 c fracturing.\n\nShort bio\nDr. Yoshioka received his Bachelor of Science 
 in Resources and Environmental Engineering from Waseda University\, Japan 
 in 2003 and PhD in Petroleum Engineering from Texas A&M University in 2007
 .\n\nHe then joined Chevron's geomechanics teams in Houston. He conducted 
 internal consulting and corporate researches on various geomechanical prob
 lems for more than 10 years including a short term assignment in Chevron's
  geothermal operation in Indonesia.\n\nIn 2017\, he moved to Germany and s
 tarted working on an open source code development project at the Helmholtz
  Centre for Environmental Research focusing on computational fracture mech
 anics.\n\nSince 2022\, he has been professor for geo-energy production eng
 ineering at Montanuniversität Leoben.\n\nSandwiches offered after the sem
 inar.
LOCATION:GC B1 10 https://plan.epfl.ch/?room==GC%20B1%2010 https://epfl.zo
 om.us/j/65055837741
STATUS:CONFIRMED
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