b$)$ Company policy requires an overpressure of $\frac{7}{b}ar(101\mathrm{.}5)$ at the bottom of the well when the kick is circulated out. What mass density should the kill mud have to achieve this overpressure?

$=$ubrace$(P_f$ubrace$)+$ubrace$(P_s$ubrace$)$

Bunnkulbsfyle Formagias$-$ silberhets. fra kill und

${}_{hr}=\frac{P_f+P_S}{gh}=\frac{P_d+{}_{m}gh+P_s}{gh}={}_{m+}\frac{P_{dg}+P_s}{gh}$