A dry gas reservoir lies at T$=115$ oC and at p$=3,000$ psi. The gas specific gravity is $0\mathrm{.}85$ and the

reservoir is producing at a rate of $10$ MMscf$/$d$.$

$1.$ What is the gas density at reservoir and at surface conditions?

$2.$ What is the daily underground withdrawal if the reservoir is known to be volumetric?

$3.$ What is the gas volumetric factor at current reservoir conditions?