A drilling wellbore pressure calculation model considering the effect of gas dissolution and suspension

The complex formation pressure system and diverse fluid components during deepwater deep drilling make it easy for gas intrusion accidents to occur. dissolution suspension of the intruded in difference between gas–liquid phase distribution characteristics gas–water two-phase flow wellbore lead errors calculation overflow assessment after intrusion. In this article, a multiphase model, considering is established, influence on overflow, well shutdown, compression analyzed with model results. higher density yield stress are, limit concentration, when free present wellbore. After there are suspended transported gases wellbore, rate increase decreases volume fraction shutdown time longer, eventually all will be fluid. During process, leads an peak delay its occurrence; decrease occurrence. This article establishes both suspension, which guideline