An essential feature of shale is swelling induced by shale–liquid interactions. Shale swelling
is an important inducing factor for shale damage that affects shale mechanics. A better …

The volcanic rock with developed pores is important reservoir for oil and gas, but its complex
pore-fracture structural characteristics lead to the hydration reaction when the volcanic strata …

To determine the acoustic wave propagation characteristics of bedded shales under
different confining pressures and temperatures, shales from the Longmaxi Formation in the …

Previous studies have shown that water can reduce the acoustic emission (AE) energy and
other parameters during rock failure. However, the fracture mechanism of rock can be better …

The water-shale interaction affect the shale structure, leading to wellbore instability and
increasing drilling costs. The extent of structural changes within the shale can be determined …

Reservoir geomechanical studies play a decisive role in identifying wellbore instability and
weak zones in offshore petroleum reservoirs. In this study, an integrated workflow developed …

Wellbore instability is easy to occur in the process of drilling shale gas horizontal wells,
which is mainly due to the deterioration of physical properties of shales after encountering …

Hydration of rock during drilling will lead to wellbore instability. The wellbore stability can be
effectively improved by accurately evaluating the hydration damage of rocks. However, there …

During the drilling process, the shale in Ordos Basin has a serious wellbore destabilization
problem, which causes great economic loss. For the purpose of studying the mechanism of …

Acoustic characteristics measured by acoustic logging are usually used to estimate the
structures and mechanical properties of rock materials. However, it is problematic to …