Question-3 The table below represents the composition of a reservoir gas. Determine the gas z-factor at the reservoir condition 5735 psia and 268 F. Compare your answer with the laboratory measured z-factor of 0.914 at the same reservoir condition for this gas. 1. Use both Wichert-Aziz and CKB methods of correction. 2. If the non-HC effect is ignored what will be the gas z-factor? 3. Calculate the gas density at reservoir conditions for parts 1, and 2. Note: Properties of heptane plus (Specific gravity 0.844, Molecular weight 115 lb/lb mole)