A wellbore cement sheath damage prediction model with the integration of acoustic wellbore measurements

•A wellbore cement sheath damage model with the integration of acoustic measurements is proposed. Wellbore cement quality analysis can be refined with the joint interpretation of both sonic and ultrasonic bond logs.•A microannulus might propagate due to thermo-mechanical stresses throughout well lifecycle soon after cement curing.•High thermal stresses, due to drastic temperature changes throughout well lifecycle, induce cement sheath failure.•A fluid-filled microannulus might propagate due to thermo-mechanical stresses at various well operations soon after cement curing. This paper presents an analytical method of predicting cement sheath integrity with incorporation of wire-line acoustic measurements on an example of a deep, high-temperature geothermal well, located in central part of the Los Humeros Geothermal Field in the northern part of the Mexican Volcanic Belt. The developed method, accounting for mechanical properties of a coupled casing-cement-rock system with the influence of temperature changes, applied internal pressures, and isotropic far-field stresses, can be easily, without additional costs and in a non-destructive way, used to evaluate cement sheath integrity during various stages of a geothermal well life cycle and help to optimize and design drilling, production, and maintenance operations.