CemSTRESS software is the key to understanding stresses in the cement sheath. This software can model up to 10 strings simultaneously, analyzing the stress imposed on each string by a well event, such as pressure testing. CemSTRESS analysis of radial and tangential stresses can determine cement sheath performance in compression, tension, or both, enabling the design of the set cement behind the casing to be optimized.
A lack of understanding of the stresses a cement sheath experiences and when or why the sheath may fail can lead to loss of zonal isolation, jeopardizing the future of the well. The lack of zonal isolation adversely affects all subsequent operations and degrades potential well performance and productivity.
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