Flow model and Numerical method:

Lorentzen, R.J., Fjelde. K.K., RF-Rogaland Research*. “Use of slopelimiter techniques in traditional numerical methods for multi-phase flow in pipelines and wells.” International Journal for Numerical Methods in Fluids. Vol. 48: pages 723–745, 2005. Link to paper

Lorentzen, R.J., Stordal, A. and Nævdal, G., SPE, IRIS, and Karlsen, H.A. and Skaug, H.J., University of Bergen, Department of Mathematics. Estimation of Production Rates With Transient Well-Flow Modeling and the Auxiliary Particle Filter. Paper SPE 165582, SPE Journal, pages 172-180, February 2014. Link to paper

Temperature Model:

Corre, B., Eymard, R. and Gounet, A. “Numerical computation of Temperature Distribution in a wellbore while drilling”. Paper SPE 132080 presented at the SPE Annual Technical Conference and exhibition, Houston, 16-19 September, 1984. Link to paper

Transient Cuttings transport model:

Cayeux, E., IRIS – International Research Institute of Stavanger; Mesagan, T., Tanripada, S., and Zidan, M., Statoil; Fjelde, K.K., University of Stavanger. “Real-Time Evaluation of HoleCleaning Condidtions With a Transient Cuttings-Transport Model”. SPE 163492. Drilling and Completion Journal, March 2014. Link to paper

Torque & Drag model:

Yunfeng Yi et. al. «An Advanced Coiled Tubing Simulator for Calculations of Mechanical and Flow Effects; Model Advancements and Full-Scale Verification Experiments.” SPE 89455. 2004. Link to paper

Kyllingstad, Aa., RF-Rogaland Research*. “Buckling of tubular strings in curved wells.” Journal of Petroleum Science and Engineering, Volume 12, Issue 3, Pages 209-218, January 1995. Link to paper