Investigation of different interpolation functions for a newly developed framework for sequential coupling of the reservoir, wells, and surface facilities

Resumo

The development of numerical software which can simultaneously simulate reservoir, well and surface
facilities is becoming a remarkable research topic for both academia and industry. Previously, we developed a
numerical algorithm for our in-house compositional simulator, UTCOMPRS, to couple the simulator with surface
facilities. The information for well and surface facilities is produced by a commercial simulator and included
within the UTCOMPRS through two sets of tables named simplified and advanced flow tables. By introducing a
new class of flow tables named commercial flow tables, for well modeling, this work presents three main
objectives: 1) introducing a newly developed framework for commercial flow tables, 2) introducing a new feature
for controlling the injecting well, 3) investigation of different interpolation functions, such as gas-liquid ratio,
water-oil ratio, liquid rate, and wellhead pressure for the validation of the newly developed framework with a
commercial simulator. Also, we present the results of two case studies. They show that the developed framework
was successfully designed and validated. Also, the values of bottom hole pressure, wellhead pressure, water-oil
ratio, gas-oil ratio, the pressure of injector, oil, gas, and water rates were in good agreement with both UTCOMPRS
and commercial simulators. The outcomes of this research study increase the applicability of our simulator for
modeling more complex models through the sequential coupling of the reservoir, well, and surface facilities. Also,
these new functions are designed in a way that can be used for our future studies, which are concentrated in
application for fully-coupling frameworks.