The key objective of well cementing has always been to provide zonal isolation in oil, gas, and carbon dioxide (CO₂) storage wells to ensure safety and prevent environmental problems. The loss of zonal isolation and wellbore failures are mostly associated with inappropriate cementing and/or cement-s...

In this study, our recent and new approach for detailed tracking of the interface between well fluid and cement by using particles is investigated. The particles can enable us to know the precise location of the interface between two fluids and be sure about displacement efficiency in the annulus. T...

In this study, a new approach for detailed tracking of the interface between well fluid and cement by using particles is investigated. This can improve the quality of annular cementing of CO₂ wells and thus the storage safety. For this purpose, the displacement mechanisms of Newtonian and non-Newton...

Clay‐rich shale poses substantial challenges to establishing well integrity during drilling, operation and abandonment of wells used in oil and gas production, CO₂ sequestration, and other waste disposal activities. We review problems created by shale for borehole stability, zonal isolation, and lon...