Production Monitoring and Optimization of Unconventional Wells with Clamp-On Measurement System

Abstract We shall present the results of using a non-intrusive clamp-on Electromagnetic Acoustic Transducer (EMAT) multiphase measurement system for the optimization of unconventional wells. The focus is on leveraging real-time field data from the sensor combined with available operator data to enhance production and asset performance. The EMAT system, which is non-invasive and non-radioactive, can be quickly installed on production flowlines with minimal intervention, making it ideal for both new and existing wells. The paper discusses the configuration process of the EMAT sensor, which is based on empirical and physics-based analysis of well conditions, including pipe geometry, production data, and PVT (pressure, volume, temperature) information. Measurements were taken at multiple well sites, and results were compared to expected flow conditions, with a focus on detecting real-time production behavior and comparing against longer time constant separator data. The flexibility of the clamp-on system allows for rapid deployment across multiple wells, enabling real-time analysis of flow characteristics. Of particular interest is the ability to quantify high frequency transient behaviors which can be used to assess artificial lift performance and/or optimize production. By continuously monitoring the flow regime and diagnostic parameters, the system provides actionable insights into transient well behavior and allows operators to respond quickly to flow changes. Simulations using the Taitel and Dukler model predicted flow regimes (Taitel and Dukler 1976), and more detailed simulations such as the TUFFP model (Al Safran and Brill 2017) help to understand the dynamics of individual phases. The EMAT sensor's ability to measure real-time production transients offers immediate feedback for optimizing production and well surveillance. The integration of EMAT multiphase measurement enables more precise, data-driven decisions to enhance production rates, asset longevity, and operational efficiency. This work demonstrates the potential of using EMAT measurements to optimize unconventional assets and improve overall well performance.