Development and Deployment of Digital Twin for Production and Well Integrity

Abstract

Abstract This work presents the development and deployment of a digital twin dedicated to monitor wellbore integrity in real time. Currently, the system is implemented and monitoring in real-time more than 230 production and injection wells. Due to reliable outcomes, the tool is also able to provide virtual well instrumentation to operations that do not have permanent downhole sensors. It consists of the coupling of different numerical simulation software, allowing the calculation of Annulus Pressure Buildup (APB) for confined well annulus and also safety factors for structural integrity analysis. This approach aims to ensure operational efficiency and safety during well interventions and to diagnose unplanned events, by automatically identifying potential operational problems, such as washouts (tubing, packer), reaching of operating limits (pressure and flow rate) per tubing equipment and failures (DHSV and Pack off). Simulations are helpful to predict pressures and temperatures that the well will be exposed to before the execution of specific operations in monitored wells. Different wells were selected and validated in order to corroborate the efficiency of the production digital twin, considering different production scenarios – steady-state and well shut-in (look-ahead), providing a qualitative comparison between calculated data and gauge readings.