Borehole stability is one of the crucial success elements of the drilling operation, which is
partially dependent upon the chemistry of the drilling fluid. Nanoparticles are emerging as …

Drainage boreholes in soft coal seams are prone to deformation and failure under the action
of in situ stress and mining stress, which has a significant impact on gas drainage in coal …

An investigation of rock fracture characteristics subjected to the true triaxial intermediate
principal stress is crucial for understanding the failure mechanism of surrounding rock in an …

A finite element model of wellbore stability was proposed for a horizontal well, and drill-
string friction and lateral collision in the process of rotary motion were taken into account. An …

The interaction between shale bedding planes and fluids significantly weakens their
structural integrity, profoundly affecting borehole stability in shale reservoirs. However …

The cost of drilling oil and gas wells is likely to be charged by billions of dollars each year
due to wellbore stability problems. In engineering practice, a linear poroelasticity stress …

SummaryIn this research, the importance of the parameters affecting the oil wellbore stability
has been investigated. This study has been performed by the finite element method and …