Question

Match the suitable artificial lift methods (GROUP I) to meet the requirements (GROUP II) given in the table. 

• A. P – I, Q – II, R – IV, S – III
• B. P – II, Q – I, R – IV, S – III
• C. P – I, Q – II, R – III, S – IV
• D. P – II, Q – I, R – III, S – IV

Hint:

For artificial lifts, choose the method based on the well's production characteristics such as viscosity, water cut, and flow rate.

Answer 1

The Correct Option is D

Step 1: Progressive Cavity Pump (P).
The progressive cavity pump is ideal for delivering fluids with a high viscosity, such as those found in oil wells with a higher liquid phase. This matches with requirement II, which specifies delivering a fluid with a viscosity of 1000 cP. Thus, P – II.

Step 2: Electric Submersible Pump (Q).
Electric submersible pumps are commonly used in wells with high flow rates and lower viscosity fluids. The most fitting requirement is I, which calls for the delivery of high-water cut (95%) oil with a high flow rate. Thus, Q – I.

Step 3: Sucker Rod Pump (R).
Sucker rod pumps are typically used for lower production rates but can be used effectively for wells producing small amounts of water. This matches requirement III, which is used to deliquify a gas-well with 5 bbl/day water. Thus, R – III.

Step 4: Gas Lift (S).
Gas lifts are commonly used in wells producing large quantities of oil, such as those with sandy oil wells. The requirement IV fits best, which is to be used in a sandy oil well to produce 5000 bbl/day. Thus, S – IV. Conclusion:
Therefore, the correct answer is (D) P – II, Q – I, R – III, S – IV.