Sensitivity Analysis and determination of the most important affecting parameters in the stability of oil wellbores based on numerical modeling in Phase2

In 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 modeling in the Phase 2 software. “Maximum total displacement” is considered as the representative of wellbore stability. The impact of each parameter on the wellbore stability was investigated by changing the values of the parameters. Finally, pore pressure and drilling mud pressure were recognized as the most important parameters affecting the wellbore stability.