Page 58 - 4924

b) gravel
c) alkali
d) a finely graded sand

Unit 12

Formation evaluation

Answer the following questions.

1. Can an operator decide to complete or abandon a well using only information
from cuttings and mud returns?
2. What is well logging?
3. What are the functions of logging tools?
4. When does the operator call the logging company to the well?
5. How does LWD tool transmit formation information?
6. Who makes up the test tool on the bottom of the drill stem?
7. What indicates whether the well can produce?
8. How many caring methods are available?
9. What is coring method?

Choose the correct answer.

1. …. techniques are available to help the operator decide whether to complete the
well.
a) Two;
b) One;
c) Several;
d) no correct answer.

2. A geologist can test the cuttings to determine whether...
a) there are grubs;
b) they contain hydrocarbons;
c) there are stones;
d) no correct answer.

3. The mud logger, using various kinds …, can also spot hydrocarbons in the
drilling mud.
a) of detection equipment
b) of top drive;
c) of bit;
d) no correct answer.

4. An operator probably would not decide to complete or abandon a well using
only … from cuttings and mud returns.

56