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  1. Match the definitions on the right with the words on the left.

1.

to extract

a.to make less; make smaller in size, number,

degree, price;

2.

to reduce

b.to take or get out; to obtain by force;

3.

to drill

c. to allow to go; set free; unfasten

4.

to dig (dug)

d. to force liquid, gas or air into/out of or through something (water from a well)

5.

to release

e. to make a hole with a drill;

6.

to pump

f. to break apart from internal pressure; explode;

7.

to burst

g. to use a tool (a machine, claws) to break up and move the earth;

1. b_2___3 . 4. 5. 6. 7.

  1. Answer the questions.

  1. What is the usual way of extracting petroleum from underground?

  2. Why petroleum is extracted by means of wells?

  3. What instruments may be used to find subsurface rock formations that hold crude oil?

  4. Where is oil usually located?

  5. What is the usual depth of oil well?

  6. What makes the oil burst outside through the well?

  7. What do we call the primary production?

  8. Why oil wells are flooded with water?

  9. Will you pump out the entire oil amount from the well?

1.

subterranean

rogiin

subterranean origin

2.

sensitive

ruintntsmes

3.

scientific

mdshoet

4.

exploratory

wlle

5.

petroleum

dsitsepo

  1. Find in the text the following word-combinations. Do you remember their translation?

6.

underground

oolp

7.

huge

ssurepre

8.

primary

pructionod

  1. Join the beginning and the end of the sentences. Choose the right variant.

L Because of the subterranean origin of petroleum .

  1. it must be extracted by means of wells;

  2. it has to be extracted through air pocket.

  1. In order to reduce the number of exploratory wells dri­lled .

  1. non-traditional methods are used to pick the most pro­mising sites;

  2. scientific methods are used to choose the most hopeful sites.

  1. Sensitive instruments may be used .

  1. to find subsurface rock formations that can hold crude oil;

  2. to fence in the subsurface rock formations that can contain crude oil.

  3. Before petroleum deposits are reached .

  1. many pot - holes should be dug several meters deep;

  2. some wells must be dug several miles deep.

  1. Oil is located in small pores between the rocks .

  1. under the high pressure;

  2. under pressure.

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