Casing pressure during well-killing is both an unknown variable that must be addressed and a time-dependent function. Therefore, the calculation of dynamic reaction wellbore indeterminate boundary problem. Due to intricacy analytical solution technique, finding for issue uncertain boundaries nearly impossible. Current numerical simulation software only capable resolving problems with defined bo...

Control of well drilling operations poses a challenging issue to be tackled. The loss of well control could lead to the occurrence of blowout as a severe threat, involving the risk of human lives and environmental and economic consequences. Conventional proportional-integral (PI) controller is a common practice in the well control operation. The small existing margin between pore pressure and f...