Аналіз ефективності функціонування адаптивної імпульсної системи методом стохастичних характеристик

Abstract

The article considers the stochastic characteristics that determine the effective range of pressure pulse generation by an adaptive pulse system to influence the bottomhole zone of an oil well from the surface in order to enhance hydrocarbon production. For the analysis, we used dependencies that describe the processes of implosion and generation of direct water hammer, taking into account the influence of probabilistic parameters based on normal distributions of the volumetric modulus of elasticity and density of the working fluid as random variables. The studies have established that the geometric and power parameters of the pulse generator are influential for ensuring the functioning of the adaptive pulse system, taking into account the technological parameters of the oil well, and ensuring the rational length of the implosion chamber within 0.25...1.2 m allowed the installation of an implosion pulse generator directly on the tank of the pumping unit. The method of cleaning the bottomhole zone of a reservoir system in the process of short-term workovers with the installation of all elements of the adaptive pulse system on the surface, which ensures its reliability and ease of maintenance, is substantiated. The stochastic characteristics that affect the amplitude characteristic of the pressure pulse and the probability of its realization in the rational zone are investigated, taking into account the normal distributions of numerical characteristics for random variables — the volumetric modulus of elasticity and the density of the working fluid — reservoir water. The range of realization of extreme power characteristics of the adaptive pulse system functioning within the standard deviation from the mathematical expectation of the values of the volumetric modulus of elasticity and the density of the working fluid is established The presented methodology for taking into account the stochastic characteristics of the working medium for the generation of pulse processes can be useful for achieving maximum efficiency of other pulse technologies that affect the bottomhole zone of an oil well and the formation system in the filtration zone. The obtained results are important for improving technological solutions in the field of power equipment and their further implementation in industrial production.