5. The isopach map of Reservoir A is shown in FIGURE 3 below. The thickness at the top of the reservoir is 58 m. Net-to-Gross (NTG) is 0.76. Rock and fluid properties are given, and area is measured from planimeter. Determine Gas- Initially-In-Place (GIIP)[10 MARKS] 0 10 20 30 40 50 Map scale: 1 cm=2000 m FIGURE 3 + gi 0.0052 res m3/std m3 25% Swi 27% Isopach line (m) Area (cm) 0 35 10 29 20 25 30 19 40 12 50 6 4