Answer the following questions with(yes)or (no)and explain why


1.1. All types of available artificial lifting pumps are used to add additional energy
to the natural lifting energy.

1.2. The gas lifting technique is used to enhance the well inflow performance. This
is achieved by reducing the hydrostatic head pressure loss.


1.3. Straight line IPR is better than Vogel IPR for the artificial lifting systems.


1.7. Pressure gradient curves affected by the well bore deviation.



1.8. Acid stimulation is use to by-pass the near well bore damage.