A preliminary optimization of borehole microseismic array design with a multiple criteria decision analysis

In this study, we developed a comprehensive workflow using Multiple Criteria Decision Analysis (MCDA) to optimize microseismic acquisition design in order to improve borehole microseismic data quality. The influence of multiple parameters, such as average distance to microseismic events, receiver and event aperture, and wave-field complexity, is considered. A computer code is developed to resolve the conflicting parameters to achieve the best possible data quality. The program output is used recommend an optimum depth and location for deploying the borehole geophone array(s). The algorithm is then applied to a case study that utilizes synthetic microseismic data and real well trajectories from several vertical and horizontal wells in Williston Basin, North Dakota.