Method to determine cement sheath failure risk under cyclic loads using real-time downhole deformation data

Abstract

A method of performing a wellbore servicing operation may include: obtaining a measurement of steady state creep rate () within a cement sheath associated with a wellbore while performing the wellbore servicing operation in the wellbore; determining a number of cycles to failure (N) of the cement sheath using a cement material fatigue model wherein the cement material fatigue model has an input of steady state creep rate (); adjusting at least one operational parameter of the wellbore servicing operation in response to the determined number of cycles to failure (N) to form adjusted operational parameters; and performing the wellbore B servicing operation at the adjusted operational parameters.