Patent ID: 9223055
Filing Date: 2015-12-29
Classification: G01V

Abstract:
1. A method for interpreting petrophysical measurement data, comprising: measuring at least one physical property of formations using a petrophysical measuring instrument in a wellbore; in a computer, arranging measurements of the at least one physical property of formations made by the petrophysical measuring instrument into a matrix representing the measurements and selecting a number of unobserved factors for factor analysis; in the computer, performing factorization of the matrix into the number of unobserved factors; in the computer, performing rotation of results of the factorization; in the computer, determining whether factor loadings for each of the unobserved factors has achieved a simple structure; and in the computer, when it is determined that each of the unobserved factors cannot be associated with a corresponding physical parameter of the formations, performing the following operations until each of the unobserved factors has achieved the simple structure such that each of the unobserved factors is associated with the corresponding physical parameter of the formations: