PRINCIPLES OF MATHEMATICAL MODELING OF ESP OPERATION IN A WELL
UDC: 622.06
DOI: 10.33285/0130-3872-2021-6(342)-59-62
Authors:
SHAIDAKOV VLADIMIR VLADIMIROVICH 1,
YAMALIEV VIL UZBEKOVICH 1,
AYUPOVA ANNA RINATOVNA 2,
KOSTILEVSKY VALERY ANATOLIEVICH 1
1 Ufa State Petroleum Technical University, Ufa, Russian Federation
2 Scientific and Production Enterprise "AMMA", Ufa, Russian Federation
Keywords: mathematical modeling, multiphase flow, flow model, drifting, pump, formation, non-isothermal flow, well, dual string production
Annotation:
As a result of the analysis of methods for modeling the operation of the ESP in a well, the most important factors influencing the operation of the "reservoir - well - ESP" system were identified. The paper is devoted to the formulation of a mathematical model of unsteady three-phase flows in a conjugate system. A one-dimensional non-isothermal flow is considered within the framework of the drift flow model. An approximate isothermal model of non-volatile oil in a three-dimensional reservoir is presented. Simulation of the ESP operation is carried out using the pressure characteristics of the pump, taking into account its energy parameters. The modeling uses the fundamental laws of conservation of mass, momentum and energy for heterogeneous media. Difficulties arising when collectingdata for simulating the dual string production, the complexity of measuring pressures in the interval of formations perforation are considered. Various gas protection technologies are presented to exclude significant deformation of the characteristics of an electric centrifugal pump.
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