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1. Water drive 2. Dissolved-gas drive 3. Gas-cap drive

15. Give synonyms to the following words.

1. oil pools –

2. deposits of petroleum -

3. drive -

4. push through -

5. exist -

6. help –

7. part -

8. need -

9. make -

10. extraction –

11. uncontrolled pressure well –

12. decrease -

16. Define the following terms.

1. drive

5. artificial lift

2. dissolved-gas drive

6. gravity drive

3. gas-cap drive

7. compaction drive

4. water drive

8. combination drive

17. State whether the following statements are true or false.

Correct the false statements.

1. Oil does not really flow rapidly through sand or rock.

2. To lift the fluid to the surface small amount of energy is needed.

3. The forces that push the oil are called natural ones.

4. As gas expands, it exerts the pressure which pushes the oil through the reservoir.

5. Artificial lift – is when sufficient pressure energy exists.

6. For the gravity drive to be effective low structural dip is required.

7. A great deal of oil wasted when a well gushed.

8. The petroleum industry today is concerned about stopping wasteful gushers.

18. Answer the following questions.

1. The term “oil pools” refers to deposits of petroleum, doesn’t it?

2. What do deposits look like?

3. When does natural flow occur?

4. Are there two kinds of natural drives?

5. In what condition does gas occur in the oil?

6. What type of natural drive makes the recovery slow?

7. Why must oil be pumped to the surface?

8. In what wells is the pressure without control?

19. In pairs discuss advantages and disadvantages of drive mechanisms you know.

Express your own point of view using the following expressions:

I think …

Я думаю …

I believe …

Я полагаю …

As I see it, …

Как я это вижу, …

As I understand it …

Насколько я понимаю …

I should say …

Я бы сказал …

From my point of view …

С моей точки зрения …

My own point of view of the problem is …

Моя личная точка зрения на данный вопрос состоит в (том, что) …

Ex.20. 9 You will hear a part of a lecture on Petroleum Products.

a) For statements 1 - 7 complete the notes that summarize what the speaker says. You will need to write a word or a short phrase in each box.

1. Oil and natural gas products give us .

2. will continue to be a reliable source.

3. The electricity - warm in winter and cool in summer.

4. - they contribute to the manufacture of everything from medicines to clothing and .

5. To the latest computers and .

6. Technology provides us with .

7. It provides us with them .

b) Tell about petroleum products using the above given information.

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