A well is producing from a reservoir having a average reservoir pressure of $2085$ psi. A stabilized production test on the well resulted in qo of $282$ stb$/$day when $1765$ psi. Pb is $2100$ psi using Vogel calculate:$$

$1.$Qo if Pwf is reduced to $1485$ psi$$

$2.$Pwf needed to obtain qo of $400$ stb$/$d$$