Question $2$ only please!

Consider that the BOP working pressure of $5,000$ psi was selected assuming the

well full of gas after a gas kick with pore pressure at bottom. For the design, the

drilling engineer used an anticipated depth of $10,000$ ft$,$ gas gradient equal to $0\mathrm{.}1$

psi$/$ft$,$ and pore pressure equal to $5,000$ psi at $10,000$ ft$.$ This is equivalent to a

density of $9\mathrm{.}6$ ppg as pore pressure.

QUESTION $1(45\%)$

When the well reaches $10,000$ ft the geologist tells you that he wants to

drill deeper. Considering that the pore pressure is constant and equal to

$9\mathrm{.}6$ ppg with increasing depth, determine the maximum depth you can go

assuming that you will have a gas kick at bottom and $($BOP pressure $$

$500)$ at surface. Your safety factor is $500$ psi at surface.

QUESTION $2(45\%)$

Plot the maximum depth you can reach vs$.$ equivalent pore pressure at

bottom $($ppg$),$ considering the well full of gas $($gas gradient $=0\mathrm{.}1$ psi$/$ft$)$

and pressure at surface equal to $4,500$ psi. Plot for a range of pore

pressure at bottom varying from $9$ to $16$ ppg$.$