Patent ID: 8818728
Filing Date: 2014-08-26
Classification: G01V

Abstract:
1. A method to determine one or more changes in one or more dynamic features while drilling a borehole, comprising: obtaining a first set of image data pertaining to a formation surrounding the borehole using a while-drilling logging tool at a selected depth or range of depths in the borehole; extracting one or more image features from the first set of image data; forming a first representation of the one or more image features extracted from the first set of image data; obtaining, at a time different from when the first set of image data is obtained, a second set of image data pertaining to the formation surrounding the borehole using the while-drilling logging tool at the selected depth or range of depths in the borehole; extracting one or more image features from the second set of image data; forming a second representation of the one or more image features extracted from the second set of image data; determining one or more differences between the first representation and the second representation; and determining the one or more changes in the one or more dynamic features using the one or more determined differences; wherein the first and second representations of the extracted image features include geometric attributes of the image features.