Development of Approaches to Modeling the Processes of Joining Sections and Operation of Drilling Equipment

The goal of this paper is to develop and test approaches to modeling the processes of joining sections and operating modes of drilling equipment based on using digital modeling. Using this technique made it possible not only to assess the quality of joining the structure of drilling equipment sections, but also to implement the stress-strain state of the structure after joining as the initial conditions for evaluating the design performance under operating conditions. The main method used in this work is all over numerical simulations based on finite-element method. The electricity resistance was measured after a series of simulations to help to understand and estimate the connection tightness between parts. The measured values of electricity resistance calculated by analytical formulas using as background data contact forces values. Achieved values showed their correspondence to real experiment. That results give us better understanding of tightness-dependent values, like electricity resistance and moreover—proved a 3D-modeling approach in sealed-types of connectors.