Cement sheaths are among the most important well barrier elements and cement sheath integrity is thus important to maintain zonal isolation. Repeated pressure cycling in a well might lead to radial cracks and/or formation of microannuli in the cement sheaths. However, most experimental tests and mod...

A cement plug is widely applied for permanent abandonment phase to provide long-term zonal isolation against fluid flow. Maintaining cement plug integrity is a challenging task, and loss in cement sealing poses risks to the surrounding environment and surface safety. It is well-known that the cement...

Cement is an important component to ensure safe and economic sustainable operations of a well. To optimize the performance of cement in a well, and to achieve an adequate level of well integrity, experimental testing of cement under realistic and relevant conditions is vital. This paper reviews thre...

There is an upcoming "P&A wave" of wells that need to be permanently plugged and abandoned, especially in mature, offshore areas such as the North Sea and Gulf of Mexico. It is important to ensure that plugged wells do not leak after abandonment, as there could be several potential lea...