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 …

Well cementing is an important operation during drilling and completion of oil wells. The
cement sheath must maintain well integrity behind the casing and provide long-term zonal …

A majority of well integrity problems originate from cracks of oil well cement. To address the
crack issues, bespoke sodium silicate microcapsules were used in this study for introducing …

In shale gas development, the problem of sustained casing pressure has become more and
more prominent. A major cause of sustained casing pressure is the debonding of cement …

This paper presents new semilog-straight line and temperature-derivative methods (similar
to pressure-derivative method commonly used in pressure transient analysis) for interpreting …

The cement sheath, serving as the primary element of well barriers, plays a crucial role in
maintaining zonal isolation, protecting the casing from corrosion, and providing mechanical …

For injection & production well built in underground gas storage (UGS), sealing failure of
cement sheath is one of the major factors threatening wellbore integrity due to continuous …

Zonal isolation is essential for the longevity and productivity of any oil or gas well.
Nowadays, most wells around the world are extending deeper and deeper. Downhole …

With the increased exploration activity in unconventional and extreme operational
environment, well integrity is becoming a challenging problem. Cement sheath, being an …

Hydrogen is a promising energy carrier for a low-carbon future energy system, as it can be
stored on a megaton scale (equivalent to TWh of energy) in subsurface reservoirs. However …