METHOD OF ANALYZING THE BOND STRENGTH OF CEMENT AND FORMATION WITH DISCRETE IMAGE ANALYSIS

摘要

A method of analyzing a composite plug includes creating a composite plug, where the composite plug includes a formation layer, a cement layer, and an interface region between them, and the cement extends into the formation sample in the interface region. The method further includes imaging the composite plug to gather a series of discrete images, where each discrete image in the series depicts a cross section of the composite plug and the discrete images are taken at set increments throughout a depth of the composite plug. The method further includes analyzing each discrete image in the series of discrete images to determine a porosity measurement of each discrete image, determine a first and second boundary of the interface region from the porosity measurement of each discrete image, and determine a depth of the interface region by a number of discrete images between the first boundary and the second boundary.