In this paper analytical simulator for modeling of the wells performance is presented. The proposed method is based on iterative algorithm and domain decomposition principle (with and without overlapping) reducing the drainage problems in initial domain with complicated structure, heterogeneous properties and mixed boundary conditions to problems in standard (simple) homogeneous domain with uniform boundary conditions. The developed method has been proved in both stationary and transient cases.

For the numerical realization special analytical approximations of Newtonian and Heat Potentials were used. The computational experiments allowed to analyze the impact of the geometry of the "resevoir+well" system on the production index and to infer several Flow Rate (F-R) Formulae for the strongly Horizontal well (HW), Slanting well (SW) and dual lateral HW.

The developed analytically numerical method and the F-R Formulae have been validated and proved to be highly precise.

You can access this article if you purchase or spend a download.