The methodology for developing a mathematical model for the study of structures of pumping unit in the extraction of hydrocarbon compounds
The choice of rational design of pumping fluid lifts from the well and operation modes are one of the most pressing problems in oil production. Despite a significant number of theoretical and experimental research the solution to a problem in this area cannot be considered completed for the following reasons that the hydrodynamic characteristics of the well product movement and kinematics of sucker-rod pumping unit are extremely complex. Change of any technological operating parameter of the unit can lead to difficult-to-anticipate results. This paper describes the equations of the rod hanger center motion at different phases making it possible to develop recommendations on the choice of type and design of sucker-rod pumping unit as well as increase its productivity. Beam unit's operating practice shows, that the main causes of the well servicing are parted rods. It has been established that parted rods can be not only in the top part but also in the middle and bottom part of the rod string. It has been suggested theoretical justifications of dynamic loads, which have a bearing on the rod string. The article gives motion study of rod hanger center and describes dynamic loads, which have an effect on joint details during operational cycle. Offered computation could be calculation basis for innovative technological techniques addressed to increasing working efficiency of downhole equipment.