Hole Diameter: $8$ inches

Rm : $0\mathrm{.}8$ ohm$-$m

hmc : $\frac{3}{8}$ inches

RLLD : $200$ohm$-m$

RLLS: $100$ohm$-m$

RMLL

: $40$ohm$-m$

a$)$ Find the true formation resistivity $($Rt$),$ the flushed zone resistivity $($Rxo$)$ and the depth of invasion $($di$)$ by correcting the laterolog readings depending on hole diameter and the microlaterolog reading depending on mud cake thickness.

Hint: In chart Rint$-9$ use RLLD$/$RML obtained values.

b$)$ Calculate the oil and water saturation where the porosity is $0\mathrm{.}23$ and the resistivity of the formation water is $0\mathrm{.}9$ohm$-m.$

Hint: Use Humble Equation.

$4.$ What are the main petrophysical parameters evaluated by means of well $log$ interpretation?

$5.$ What are the main uses of SP logging$?$