Using Model-Based Design for Digital Twins to Predict the Real-TimePerformance of Surface Equipment

摘要

A digital twin of the above ground electro-mechanical and control systems for a drilling rig was createdusing a model-based software. Using a library of pre-built software models, reduced the development timeof the digital twin using traditional software development methods from over a year with a team of experts,to less than 4 months for a single developer. In addition to a significant time savings, the resulting simulationwas able to predict performance of the top drive, draw works and mud pumps with an error of less than3% for most conditions. Physics-based twins were built to describe the physical properties of devices (motors, pumps, busparameters), including material properties, using pre-built block from libraries. These blocks describemathematics and dynamics of systems. Using sensor data from 3 sensors (Speed, Torque and Current), 16motor parameters were estimated and calibrated to field data.