An oil reservoir the oil, gas and water production rates as recorded as follows: Oil rate is $250ST\frac{B}{D},$ Gas is $125MSC\frac{F}{S}TB,$ water rate is $430ST\frac{B}{D}.$ The following questions are related to drilling and

production engineering.

a$.$ You are asked to calculate only two performance ratios namely GOR, and water cut. Can you identify the type of the reservoir fluid? How would these rates will differ in the reservoir $($i$.$e$.$ flow

from the reservoir into the wellbore at the well bottomhole.$)$

b$.$ Briefly explain what major operations a drilling engineer manages $($one example is drilling mechanics$).$ List only three operations and explain.

c$.$ Briefly explain what well site facilities are installed and operated by the production engineers. List only $3$ facilities and explain

d$.$ Briefly define what is the objective of artificial lift methods. Name two major types of artificial lifting.