| Project title |
Uncertainty quantification in hydraulic fracturing using multi-level Monte Carlo and multigrid |
| Applicant(s) |
Dr.ir. J.A.S. Witteveen, Prof.dr.ir. C.W. Oosterlee, Dr. D.E.A. van Odyck, Prof. S. Sarkar |
| Abstract |
New types of gas fields need to be unlocked to keep the Dutch gas production at its current level. The large uncertainties as a result of the lack of subsurface information have to be reduced before these fields can be developed. In this project, uncertain hydraulic fracturing models will be derived for the impact of fractures appearing in the subsurface, on shale gas extraction and on the environment. Multi-level Monte Carlo, based on sampling on a hierarchy of spatial grids, will be used because of the large number of uncertainties. It will be coupled efficiently with multigrid iteration solvers to make the computational costs feasible by re-using the same set of grids. The physics will be modeled by the nonlinear Biot partial differential equations for poro-elasticity. This innovative combination of methods will take hydraulic fracturing simulations to the necessary next level by incorporating large-scale uncertainty quantification. |
| Project budget |
k€ 262 (includes 1 PhD student and material budget) |
| Duration |
2015 - 2018 |
