oa Wellbore Stability Analysis Using Acoustic Radial Profiles and an Elastoplastic Model

Wellbore Stability Analysis Using Acoustic Radial Profiles and an Elastoplastic Model Abstract Wellbore instability during drilling, completion, and production is an important and costly issue in many oil and gas fields. Because field observations show that stress-related wellbore instability problems are frequently encountered, the main objective of this study is to establish a workflow for wellbore stability modeling. The workflow was created using finite element wellbore modeling to predict induced stress concentrations and rock yield around the wellbore. Elastoplastic models were used in conjunction with the Mohr-Coulomb and other yield criteria. The second objective was to constrain these models using dipole radial profiles from an acoustic scanning platform.