Volatile markets and harsh locations and downhole conditions pose severe challenges for
ensuring safe and long-lasting intact well conditions. Well integrity is a crucial issue in the …

The rheological behavior of cement slurries is important in trying to prevent and eliminate
gas-migration related problems in oil well applications. In this paper, we review the …

Interface debonding is considered as a major reason for loss of well integrity of a CO 2
injector. In this work, a 3D numerical model is developed for simulation of a fluid-driven …

The intersection of natural fractures with hydraulic fractures results in formation of complex
fracture networks, including non-planar fractures or multi-stranded fractures. On one hand …

Microbially-induced calcium carbonate precipitation (MICP) is an emerging biotechnology
for wellbore integrity applications including sealing defects in wellbore cement and …

Abstract Sustained Casing Pressure (SCP) has become a serious problem in the
development of shale gas fields, which is believed to relate to the multistage fracturing …

Recent arguments about the possibility of well leakage and underground water pollution in
particular regions have raised significant concerns regarding wellbore integrity during …

The sustained casing pressure (SCP) problems occur mainly in intermediate casing that
might affect the safety and efficiency of shale gas production. Cement sheath is the main …

The influence and mechanism of porous structure on the deformation failure of cement
sheaths under hydraulic pressure is still unclear. To solve this problem, a net slurry cement …

Cement seal failure is common in heavy oil thermal recovery wells, but the effects of steam
stimulation on wellbore interface seal performance is unclear. The finite element model of …