A lack of understanding regarding the stresses that a cement sheath endures, along with the factors leading to its failure, can result in the loss of zonal isolation, jeopardizing the future of the well. CemSTRESS™ cement sheath stress analysis software is crucial for understanding the stresses in a cement sheath. It can model up to 10 strings at once, analyzing the stress each string experiences during well events such as pressure testing. By examining radial and tangential stresses, CemSTRESS software can determine how well the cement sheath performs under compression, tension, or both, helping to optimize the design of the cement placement behind the casing. In addition, CemSTRESS software has the unique ability to sensitize many parameters, including formation flexibility support and standoff. The system helps in choosing and designing a cement system that can prolong the well's lifespan and minimize the requirement for expensive remediation while maintaining a hydraulic seal for many years.

• High-pressure, high-temperature wells
• Fracture stimulation
• Wells with large variations in mud weight while drilling
• Wells with potential micro-annulus development or planned postplacement pressure/temperature variations
• Postwell stress analysis for future well performance

• Improved well performance and productivity
• Saved cost over time with long-term isolation and casing protection in corrosive areas

• Built-in cement properties database
• Less risk of cement failure, which causes loss of zonal isolation
• Tensile, compressive, and microannuli failure modes
• Sensitization and risk analysis
• Evaluation of robustness of cement systems against set well parameters
• Detailed report generation
• Modeling of pressure and temperature changes with respect to time
• Protection from annular gas pressure and fluid migration
• Repair of microannuli resulting from decreases in well-control- fluid weight during drilling and completion
• Optimized stress management with a predesigned cement system