Publications
From the original 1992 patent to the 2025 SPE Vienna paper, Flowpro's team has authored the foundational literature on inflow control simulation, a continuous thread from invention to modern autonomous valve technology.
Kristian Brekke, Jon Petter Sargeant, Norsk Hydro ASA
The founding patent of ICD technology. Describes the original inflow control liner using labyrinth channels to create controlled pressure drop and even inflow along horizontal wellbores. First implemented at Troll West, North Sea.
Kristian Brekke, S.C. Lien, Norsk Hydro A/S
Compares stinger completion, reduced perforation density, and inflow-control liner on the Troll oil province. The inflow-control liner showed 50% higher plateau rate and 14% more cumulative oil versus a conventional completion, the study that established ICD as an industry-standard tool.
Kristian Brekke, T.E. Johansen, Rudi Olufsen, Norsk Hydro A/S
Introduces the modular wellbore simulation approach (HOSIM) coupled to a reservoir simulator, the conceptual predecessor to Insight. Network-based horizontal well flow simulator capable of solving complex wellbore completions with ICD devices.
Kristian Brekke, Leslie G. Thompson, University of Tulsa
Fast semi-analytical network method for horizontal well performance prediction incorporating near-wellbore heterogeneity, formation damage, and completion efficiency. Used for risk/uncertainty assessment across many realizations.
Leslie Thompson, Kristian Brekke, University of Tulsa / Ziebel USA
Steady-state multiphase flow in the near-wellbore network of completed horizontal wells. Pipe network approach with complete mixing assumption at junctions. Fast and robust, suited for coupling with reservoir simulators.
K. Brekke, K. Langaas, P. Pierwocha, FlowPro Dynamics AS / Aker BP ASA / Quickersim Ltd
Introduces Insight's novel CFD-based method for modelling annulus phase segregation in AICD/AICV completions, a physics gap that standard reservoir simulators cannot handle. Shows that segregation and valve interaction cause significant simulation errors if unaccounted for. Validated against Ansys Fluent.
Also available
ICT Forum presentations and SPE conference slides, including the full 2022 and 2024 ICT Forum talks.
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