Abstract
We present the first multiscale extended finite element (MS-XFEM) method. MS-XFEM develops local multiscale basis functions which allow for constructing accurate coarse-scale systems. These basis functions are computed locally using XFEM. Both enrichment functions along the fracture nodes and tips are considered in the basis function calculation. These functions are then used to construct and solve the coarse-scale system. Note that no enrichment exists on the coarse level. This makes our MS-XFEM procedure computationally efficient, yet accurate, for highly-fractured real-field applications. For several test cases, the MS-XFEM performance is investigated compared with the classical XFEM method. MS-XFEM casts a promising approach for real-field analyses of mechanical deformation influenced by the reservoir pore-pressure change.
Original language | English |
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Title of host publication | ECMOR 2020 |
Subtitle of host publication | 17th European Conference on the Mathematics of Oil Recovery |
Publisher | EAGE |
Pages | 1-12 |
Number of pages | 12 |
ISBN (Electronic) | 9789462823426 |
DOIs | |
Publication status | Published - 2020 |
Event | 17th European Conference on the Mathematics of Oil Recovery, ECMOR 2020 - Virtual, Online Duration: 14 Sept 2020 → 17 Sept 2020 |
Conference
Conference | 17th European Conference on the Mathematics of Oil Recovery, ECMOR 2020 |
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City | Virtual, Online |
Period | 14/09/20 → 17/09/20 |