公开(公告)号：US10968724B2

公开(公告)日：2021-04-06

申请号：US15773545

申请日：2016-02-05

Applicant: Landmark Graphics Corporation

Inventor： Jin Fei ,  Jeffrey Marc Yarus ,  Richard L. Chambers ,  Shaolong Wu

IPC: E21B41/00 ,  E21B43/00 ,  G01V99/00 ,  G06F9/455 ,  G01V1/00 ,  G06N20/00 ,  G06N5/00 ,  E21B49/00 ,  E21B49/08 ,  E21B43/26

Abstract: The selection of a candidate formation realization(s) from a plurality of formation realizations may be done with a classification and regression tree (CART) analysis taking into account petrophysical and geological properties. For example, a method may include applying a CART analysis to a plurality of formation realizations using a first formation property as a predictor in the CART analysis, wherein the plurality of formation realizations are for a second formation property and are based on at least one measured formation property, thereby yielding an association between the first and second properties for each of the plurality of formation realizations; analyzing a strength of the association for each of the plurality of formation realizations; and selecting a candidate formation realization from the plurality of formation realizations based on the strength of the association. The identified candidate formation realization(s) may then be used to develop the parameters of subsequent wellbore operations.