sistema de perfuração de pressão gerenciada que tem modo de controle de poço

A method of managing drilling pressures, comprising: measuring a flow rate of a drilling fluid injected into a tubular string extending into a subsea wellbore in a formation; measuring a flow rate of returns from a drill bit disposed on a bottom of the tubular string; comparing the returns flow rate to the drilling fluid flow rate to detect a kick; exerting backpressure on the returns using a first variable choke valve. The method further comprises, in response to detecting the kick: closing a blowout preventer of a subsea pressure control assembly (PCA) against the tubular string; and diverting the flow of returns from the PCA, through a choke line having a second variable choke valve, and through the first variable choke valve.