Sequential fully implicit well model with tridiagonal matrix structure for reservoir simulation
US10113400B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2016 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Feb 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2111/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A subsurface hydrocarbon reservoir with horizontal or multiple vertical wells is simulated by sequential solution of reservoir and well equations to simulate fluid flow inside the reservoir and well production rates. Sequential solution of reservoir and well equations treats wells as specified bottom hole pressure wells. This avoids solving large matrices resulting from the simultaneous solution of the reservoir and well equations which can be computationally very expensive for large number of unknowns and require special sparse matrix solvers. Such sequential solution involves regular reservoir system solvers complemented by a small matrix for the numerical solution of the well bottom hole pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.