Patent ID: 9146329
Filing Date: 2015-09-29
Classification: G01V

Abstract:
1. A method for constructing a fully-sampled monitor survey, the method comprising: obtaining a fully sampled base data set of a subsurface region at a first time; obtaining a sparsely sampled monitor data set for the subsurface region at a second time, wherein the sparsely sampled monitor data set is a data set for which the sampling at acquisition was less dense than in the fully sampled base data set; transforming, using a computer, the obtained fully sampled base data set from a first domain into a second domain; determining a change to the transformed fully sampled base data set that, when inverse transformed, reproduces the obtained sparsely sampled monitor data set at locations where the sparsely sampled monitor data set was recorded; modifying the transformed fully sampled base data set in the second domain by the determined change to generate a modified base data set; inverse transforming the modified base data set into the first domain to generate a fully sampled monitor data set for the subsurface region as it exists at the second time; and processing the generated fully sampled monitor data set to compute a three-dimensional (3D) representation of the subsurface region as it exists at the second time, wherein the 3D representation comprises a 3D image.