In an oil well, the pressure at the gas oil contact (GOC) at a depth of 2000 m is 205 bar (gauge), as shown in the figure

Q. In an oil well, the pressure at the gas oil contact (GOC) at a depth of 2000 m is 205 bar (gauge), as shown in the figure.

The static oil pressure gradient is 0.08 bar/m in the pay zone. If a constant hydrostatic pressure gradient of 0.1 bar/m prevails throughout the subsurface, then the thickness of the oil column is    m (round off to 1 decimal place).

Ans:

Sol:

0.1 x (2000 + h_o) = 205 + (0.08 x h_o)
200 + 0.1 h_o = 205 + 0.08h_o
0.02h_o = 5
h_o = 250 m