How Microseismic Data Monitored from Treatment Well Can Lead to Fracture Imaging – Feedback from Field Experiments

For any oil company, the knowledge of fluid paths within its reservoir is key information for production optimizing. Hence the ever growing interest of understanding any seismic activity induced by stimulation operations such as fracturation jobs. Indeed, microseismic monitoring of such experiments can lead to fracture mapping – usually, it is carried out from a distant observation well. The originality of our field feedback relies on a monitoring from the treatment well itself. Over the last years, we have collected a significant catalogue of multiple frac jobs experiments (beyond 20 jobs, within various overburdens types, using different probes in various survey geometries). The variety of configurations yet leads to very consistent conclusions as to the fracture characterization, by taking advantage of both types of waves - and validates our treatment well approach.