Patent ID: 11061156

Abstract:
System and methods for generating microseismic velocity models are provided. One or more existing well sites in proximity to a planned well site are selected. Historical microseismic velocity models associated with the selected well sites are obtained. The formation depths for each velocity component of the historical models are correlated to formation depths from well logs acquired for a subsurface formation associated with the planned well site. A classification and non-linear regression on the historical microseismic velocity models is performed to identify the best-fitting velocity components for layers of the subsurface formation corresponding to the correlated formation depths. An initial microseismic velocity model of the formation is generated using the best-fitting velocity components. Seismic wave propagation through each layer of the formation is simulated using the generated model. Locations of one or more microseismic events of interest within the formation are estimated, based on the simulated wave propagation.