Salt Creep Rate Effects on the Casing Collapse with Partially Cemented Annuli

Abstract Salt exhibits time-dependent behavior when subjected to deviatoric stresses. This paper explores how salt creep rates influence casing collapse with mud channels in the cement sheath. This study investigates how variations in halite steady-state creep rate, modeled exclusively through a double-mechanism creep law, influence long-term thermomechanical casing deformation in partially cemented annuli. A two-dimensional plane-strain finite-element model incorporating realistic well construc