The integrated model of a digital asset energy efficiency

DOI: 10.24412/2076-6785-2022-7-78-83

Abstract
The paper is devoted to the description of an oil field integral model for the estimation of its efficiency change under the given conditions of the field production. The model combines the main field elements: the reservoir, artificial lift, gathering facilities, production treatment and transporting, the reservoir pressure maintenance system. These elements are presented as “digital twins”, which interacts with each other. The integrated model built up for one of the Bashkiria fields allows to calculate energy efficiency changes of all consumers at the field for the maintaining the current technological parameters and the specified scenario changes.

Materials and methods
For each of the elements of the oilfield the “digital twin” is constructed, which model the processes inside it. For the reservoir the material balance method and balanced curves are used, for the modeling of multiphase flow in the well and in the elements of ground infrastructure the set of empirical correlations for calculation of pressure and temperature drop with accordance with black oil model and composite model for phase equilibrium are employed, for modeling of pumps, heat exchangers, separators and other elements their passport characteristics are used. With integrated modeling “digital twins”
of different elements are united within the framework of a single algorithm.

Keywords
integrated model, energy efficiency, digital twin, field production, artificial lift