The world largest oil reservoir is in Saudi Arabia It is app

The world largest oil reservoir is in Saudi Arabia. It is approximately 50 miles wide, 150 miles long and at least 1000 ft thick in net pay zone. Considering this reservoir as a rectangular parallelepiped, compute the pore space in the reservoir assuming the porosity is 18percent. Express the pore space in barrels, acre-ft, and cubic meters.

Solution

1 Mile =5280 Feet

W=50*5280 =264,000 ft

L=150*5280=792,000 ft

H =1000 ft

So Volume of the oil reservoir

V=L*W*H =264,000*792000*1000

V=2.09*10¹⁴ ft³

Pore Space =Volume*Porosity =2.09*10¹⁴*0.18

Pore Space =3.764*10¹³ ft³

a)

1 Cubic feer = 1/5.6146 barrels

=0.1781 barrels

pore space=0.1781*3.764*10¹³

=6.7*10¹²barrels

b)

1acre=43560ft²

pore space= 3.764*10¹³/43560

=8.64*10⁸ acre-ft

c)

1ft³=0.0283168m³

pore space=3.764*10¹³*0.0283168

=1.066*10¹² m³