52 citations · 183 across the 12 of their papers we have counts for
13 papers
Constrained mixers for the quantum approximate optimization algorithm
Franz G. Fuchs, Kjetil Olsen Lye, Halvor Møll Nilsen +2
The quantum approximate optimization algorithm/quantum alternating operator ansatz (QAOA) is a heuristic to find approximate solutions of combinatorial optimization problems. Most…
Using flow models with sensitivities to study cost efficient monitoring programs of co2 storage sites
Halvor Møll Nilsen, Stein Krogstad, Odd Andersen +2
A key part of planning CO2 storage sites is to devise a monitoring strategy. The aim of this strategy is to fulfill the requirements of legislations and lower cost of the operation…
Multiresolution Coupled Vertical Equilibrium Model for Fast Flexible Simulation of CO Storage
Olav Møyner, Halvor Møll Nilsen
CO2 capture and storage is an important technology for mitigating climate change. Design of efficient strategies for safe, long-term storage requires the capability to efficiently…
Combining the Modified Discrete Element Method with the Virtual Element Method for Fracturing of Porous Media
Halvor Møll Nilsen, Idar Larsen, Xavier Raynaud
Simulation of fracturing processes in porous rocks can be divided into two main branches: (i) modeling the rock as a continuum which is enhanced with special features to account fo…
Modelling Geomechanical Impact of CO2 Injection Using Precomputed Response Functions
Odd Andersen, Halvor M. Nilsen, Sarah E. Gasda
When injecting CO2 or other fluids into a geological formation, pressure plays an important role both as a driver of flow and as a risk factor for mechanical integrity. The full ef…
Comparison between cell-centered and nodal based discretization schemes for linear elasticity
Nilsen Halvor, Nordbotten Jan, Raynaud Xavier
In this paper we study newly developed methods for linear elasticity on polyhedral meshes. Our emphasis is on applications of the methods to geological models. Models of subsurface…