2009 First Hotel Marin


4th international workshop on ensemble Kalman filter for model updating
June 22-24, 2009
First Hotel Marin, Bergen

Fifteen years after its introduction, the ensemble Kalman filter has become established as a viable and popular method for data assimilation in very large models including those describing atmospheric, oceanic, and petroleum reservoirs systems. Although the basic concept is straightforward, successful practical implementation has often required modifications that are problem specific. Methods that are highly successful in meteorology have not always been appropriate for porous media flow. By bringing together experts from diverse fields, we aim to explore the basis and connections between methods that work, so that the resulting applications are more robust and efficient.

In the petroleum reservoir engineering field, the ensemble Kalman filter has become increasingly popular over the last years as a method for updating of reservoir simulation models to be conditioned both on prior geostatistical information and on production data. It has proven to be exceptionally powerful on the Brugge benchmark case for closed-loop optimization and on field studies. Still there are many challenging problems both for data assimilation and for optimization. We will use this workshop to give the status of the research that has been performed and give inputs to the researchers and practitioners for their further work. This workshop will follow the lines of the previous workshops.

By bringing together leading technical experts, practitioners, researchers and students for presentations and informal interchange of information we hope to accelerate the development of this area, by giving practitioners ideas of the possibilities of the methodology and the researchers feedback on the most important challenges that have to be addressed.

The workshop is arranged jointly by IRIS and CIPR, University of Bergen, in connection with the Norwegian Research Council (NRC) supported project "Reservoir characterization using the ensemble Kalman filter''. The participants of the project are CIPR, IRIS, University of Oklahoma, University of Tulsa, and industrial partners. The workshop provides an excellent opportunity to meet people both from industry and research institutions working in this area.

The workshop is open for anyone interested in the topic, but to provide a forum for informal interchange of ideas, the program committee reserves the right to restrict the number of participants.

Scientific committee: Geir Nævdal (gen@iris.no), Brice Vallès (bv@iris.no), IRIS and Dean S. Oliver (dsoliver@ou.edu), University of Oklahoma.

Invited speakers:
Yan Chen  (Chevron):
"The Brugge field model as a test case for data assimilation".
Akhil Datta-Gupta  (Texas A&M University): "A hybrid ensemble Kalman filter with coarse scale constraints".
Geir Evensen  (StatoilHydro & Nansen center): "A discussion on the EnKF analysis scheme".
Dennis McLaughlin  (Massachusetts Institute of Technology): "Progress on feature-based ensemble data assimilation methods".
Henning Omre  (Norwegian University of Science and Technology): "Ideas on a skewed ensemble Kalman filter".
Al Reynolds  (University of Tulsa): "Failings and fixes of EnKF for nonlinear dynamics with non-Gaussian priors".
Pavel Sakov  (Nansen center): "Ensemble Square Root Filters".
Hans Wackernagel  (Mines-ParisTech): "Detecting and quantifying epidemics by particle filtering".
Program: available here

Dates:  June 22-24,2009.
Location:  First Hotel Marin, Bergen.
Cultural arrangement: Trip to Lyngheisenteret (The Heathland Centre at Lygra) where we will have be a guided walk through this unique landscape, have dinner and watch the Midsummer Eve bonfire. It will also be possible to watch a film on traditional heathland farming for those who are interested after dinner. Transportation from and to the hotel will be by bus. The cultural arrangement is included in the fee.

Organizing committee: Geir Nævdal (gen@iris.no), Brice Vallès (bv@iris.no), and Mette S. Myhre (mes@iris.no ), IRIS.

Registration fee: 6250 NOK (all taxes included). This includes two nights at the hotel, two breakfasts, three lunches, two dinners and cultural arrangement. Accommodation from June 21-22 (or 24-25) including breakfast, can be arranged for an extra fee of 1300 NOK.

Price without hotel: 3750 NOK (all taxes included). This includes the conference, three lunches, two dinners and cultural arrangement.

If you wish to arrive earlier or stay longer, Mette S. Myhre can assist you with hotel reservations.

Note: Since the workshop is in the high season we recommend you to book additional hotel accomodation if needed - as soon as possible.

Registration:  Closed.

Financial support: This workshop has received financial support from The Norwegian Research Council through the PETROMAKS program and from industrial partners.