Et profilbilde

Postdoctoral Fellow
John Emeka Udegbunam { "honorific-suffix": "Postdoctoral Fellow", "fn": "John Emeka Udegbunam", "tel": "Telephone: +47 51832230", "email": "john.e.udegbunam@uis.no" }

Faculty Faculty of Science and Technology
Department Department of Petroleum Technology
Room KE E-306

Courses taught

Research fields

Selected publications

Research in progress

Work experience

Scientific publications (from Cristin)

  • de Sousa Gomes, Dalila; Bjørkevoll, Knut Steinar; Frøyen, Johnny; Fjelde, Kjell Kåre; Sui, Dan; Udegbunam, John Emeka; Moeinikia, Fatemeh (2017). Probabilistic Flow Modelling Approach for Kick Tolerance Calculations. In: ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology, Trondheim, Norway, June 25–30, 2017. ASME Press. ISBN 978-0-7918-5776-2.
  • Udegbunam, John Emeka; Sui, Dan; Moeinikia, Fatemeh; Lage, Antonio C V M; Fjelde, Kjell Kåre; Arild, Øystein; Rabenjafimanantsoa, Herimonja Andrianifaliana; Nygaard, Olav Gerhard Haukenes (2017). A Transient Flow Model for Predicting Pressure Buildup in Closed Annuli. In: ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering - Volume 8: Polar and Arctic Sciences and Technology; Petroleum Technology, Trondheim, Norway, June 25–30, 2017. ASME Press. ISBN 978-0-7918-5776-2.
  • Udegbunam, John Emeka; Fjelde, Kjell Kåre; Evje, Steinar; Nygaard, Olav Gerhard Haukenes (2015). On the advection-upstream-splitting-method hybrid scheme: A simple transient-flow model for managed-pressure-drilling and underbalanced-drilling applications. SPE Drilling & Completion. ISSN 1064-6671. Volume 30. Booklet 2. p. 98-109. DOI: 10.2118/168960-PA.
  • Udegbunam, John Emeka; Aadnøy, Bernt Sigve; Fjelde, Kjell Kåre (2014). Uncertainty evaluation of wellbore stability model predictions. Journal of Petroleum Science and Engineering. ISSN 0920-4105. Volume 124. p. 254-263. DOI: 10.1016/j.petrol.2014.09.033.
  • Udegbunam, John Emeka; Fjelde, Kjell Kåre; Evje, Steinar; Nygaard, Gerhard (2014). A Simple Transient Flow Model for MPD and UBD Applications. In: SPE/IADC Managed Pressure Drilling & Underbalanced Operations Conference & Exhibition, 8-9 April Madrid, Spain. Society of Petroleum Engineers. ISBN 978-1-61399-319-4.
  • Udegbunam, John Emeka; Lohne, Hans; Fjelde, Kjell Kåre; Arild, Øystein; Ford, Erik Patrick (2014). Improved Underbalanced Operations With Uncertainty Analysis. In: IADC/SPE Drilling Conference and Exhibition, Texas, USA, 4-6 March 2014 - Conference Proceedings. Society of Petroleum Engineers. ISBN 978-1-61399-296-8.
  • Udegbunam, John Emeka; Aadnøy, Bernt Sigve; Fjelde, Kjell Kåre (2013). Uncertainty Evaluation of Wellbore Stability Model Predictions. In: 2013 SPE/IADC Middle East Drilling Technology Conference & Exhibition. Society of Petroleum Engineers. ISBN 978-1-61399-260-9.
  • Udegbunam, John Emeka; Fjelde, Kjell Kåre; Arild, Øystein; Ford, Erik Patrick; Lohne, Hans (2013). Uncertainty based Approach for Predicting the Operating Window in UBO Well Design. SPE Drilling & Completion. ISSN 1064-6671. Volume 28. Booklet 4. p. 326-337. DOI: http://dx.doi.org/10.2118/164916-MS.
  • Udegbunam, John Emeka; Arild, Øystein; Fjelde, Kjell Kåre; Ford, Eric Patrick; Lohne, Petter (2013). Uncertainty Based Approach for Predicting the Operating Window in UBO Well Design. SPE; 2013-06-10 - 2013-06-13.
  • Udegbunam, John Emeka; Fjelde, Kjell Kåre; Evje, Steinar (2012). The Academic AUSMV Scheme - A simple but Robust Model for Predicting Highly Dynamic Well Flow Phenomena. GeoEnergy Celle eV; 2012-09-17 - 2012-09-18.