Reference no: EM133150584
EOR
Question 1. Name the primary recovery mechanisms; provide brief explanation for each recovery mechanism.
Question 2. Explain briefly what an artificial lift system is and why it is used.
Question 3. Define the following parameters:
• Recovery factor
• Single phase mobility
• Mobility ratio
Question 4. What is viscous fingering and how it can be mitigated?
Question 5. What are the two most common classes of polymers used in polymer injection processes? Provide an example of each class with brief explanations.
Question 6. Name the methods of enhanced oil recovery, and briefly explain the mechanisms involved in each method that improves the recovery of oil.
(Hint: there are three methods that need to be discussed).
Question 7. What parameter is measured in a slim-tube test? Explain the test procedure and plot the typical results of a slim-tube test.
Question 8.
(a) Define the interfacial tension.
(b) What is its unit in SI system of units?
(c) What is the typical value of the interfacial tension for an oil/brine system?
(d) How interfacial tension is controlled in oil/brine systems?
Question 9. Fill in the blanks, or select the correct choice:
• Surfactants are classified into three groups of (a) ........ , (b) ........ , and (c) .........
• In polymer flooding, the main objective of adding polymers to the aqueous fluid phase is to (increase/decrease) the ............ of the aqueous phase.
This (increases/decreases) the mobility ratio.
• Alkaline flooding is not a suitable method for (sandstone/carbonate) reservoirs, due to the existence of ...... in the rock which may chemically react with alkaline ions and result in formation damage.
Attachment:- EOR.rar