Open AccessСontrol and Regulation of the Hydraulic Jet Pump Operation Mode
Author(s) -
D. О. Panevnyk,
O. V. Panevnyk
Publication year - 2020
Publication title -
rozvìdka ta rozrobka naftovih ì gazovih rodoviŝ
Language(s) - English
Resource type - Journals
eISSN - 2415-332X
pISSN - 1993-9973
DOI - 10.31471/1993-9973-2020-1(74)-18-25
Subject(s) - operating point , hydraulic machinery , jet (fluid) , mechanics , hydraulic pump , volumetric flow rate , flow (mathematics) , control theory (sociology) , mode (computer interface) , hydraulic fluid , oil pump , engineering , process (computing) , injector , mechanical engineering , computer science , physics , electrical engineering , control (management) , artificial intelligence , operating system
Permanent monitoring and remote control of the operation mode of the hydraulic jet pump allows increasing the efficiency of the hydrajet mode of oil wells operation. Based on the analysis of the workflow of the ejection system, the authors reveal the relation between the density and flow rate of the mixed flow and the operating parameters of the oil hydraulic jet pump in the form of nonlinear dependencies, which make it possible to carry out remote control over the flow rate in the bottomhole circulation circuit. In the process of modeling the hydraulic relations between the elements of the ejection system, a binary diagram is constructed. This binary diagram is created in the form of two combined quadrants and presents the obtained regularities between the parameters of the mixed flow at the well outlet and the operation mode of the jet pump. The authors present the method of remote control over the operation mode of a well ejection system by means of varying the flow-rate of power fluid directed to the well by a ground pump unit and by means of changing the dimensions of the components of the flowing part of the jet pump. The regulation of the operation mode of the hydraulic jet pump occurs by changing the position of the operating point of the pumping unit. In the process of regulating the operation mode of the jet pump by changing the operating flow rate, the authors obtain a series of characteristics of the hydraulic system which determine the coordinates of the operating point of the pumping unit. Adjusting the operation mode of the ejection system by changing the dimensions of the components of the flowing part of the jet pump involves creating a series of its own characteristics with constant characteristics of its hydraulic system. The replacement of the components of the flowing part of the jet pump is carried out in a hydraulic way and does not require round-trip operations in the well. The authors present the graphical interpretation of the proposed methods of regulating the operation mode of the well ejection system in the form of combined characteristics of the jet pump and its hydraulic system built in the single system of coordinates.