Make brief research and include 1-3 sentences to answer the following questions. Most of the questions are debatable and included for you to show your representation of some of the concepts and definitions regarding reservoir rock properties.

1. What countries are included into OPEC now? Tell in few sentences why it is so important to have such an organization in the industry?

2. Name and shortly describe the necessary conditions to form hydrocarbon reservoir. How do you think, what could happen if there were no migration pathway from the source rock? Do such cases exist?

3. What types of porosity carbonates have? How do you think what type of porosity contributes most to fluid flow of the carbonate rocks? (5 points)

4. Why some clays in reservoir rock are swelling and what is the consequences of the swelling?

5. What is the difference between heavy and volatile oil? If we take the sample of oil from the reservoir and put it in a lab with room conditions, will it be the same oil as it was in-situ? Why?

6. Name the classes of crude oil according to the API degree.

7. What does one should be aware of when the produced oil is having a high content of sulfur?

8. What is denser, 1 kg of saline water or 1 kg of fresh water? Why?

9. Give an example of the material with â€œ0â€ porosity. Give an example of the cases where you can observe 100% porosity.

10. What is the maximum porosity considered for reservoir rocks? Why it canâ€™t be higher?

11. Convert the following given values into the unit asked

a. The lead drilling engineer has specified that a mud has a specific gravity of 0.85. Convert this specific gravity to â°API, g/cm3, g/cc, pound per gallon (ppg).

b. The pressure rating of a separator is 310 psia. Convert this maximum allowable operating pressure to psig, atm, kPa and bar.

c. The total weight of the cement required to set intermediate casing is 4325 lbs. Convert this to kg, metric tons, US ton, and grams.

d. An infill well is expected to produce 612 bbl of oil per day. Convert this volume to gallons, liters, mL, and cubic feet (cuft).

e. The roughneck West Okie Wayne gives you directions to a drilling site 8,875 feet away. Convert this length to yards, miles, m, km, and inches.

12. You are given a clean sandstone core with a length of 1.89 inch and a diameter of 1.12 inch. The dry weight of the core is 19.17 g. Calculate the bulk volume in units of cm3, grain volume in units of cm3, and porosity as a percentage.

Make brief research and include 1-3 sentences to answer the followi...