Sifting Models of a Subsurface Structure

Multiple models are generated based on information relating to uncertainties of model parameters, where the models are consistent with preexisting data regarding a subsurface structure. A system receives, on a continual basis, information collected as an operation is performed with respect to the subsurface structure. The multiple models are recursively sifted to progressively select smaller subsets of the models as the collected information is continually received.