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d) no correct variant

15. In many instances, when a well reaches a formation of interest (usually, a formation that may
contain oil or gas), the operator hires …
a) well logging company
b) service company
c) informative company
d) no correct variant

16 … help the operating company determine whether the well will produce oil or gas
a) chisels
b) well rigs
c) well logs
d) no correct variant

17. Floating rigs also require …
a) special technologies
b) subsea equipment
c) workers
d) no correct variant

18. Offshore contractors also hire several…
a) drillers
b) roustabouts
c) workers
d) no correct variant

19. Is drilling complex or not?
a) yes
b) no
c) no correct variant

20. Give the English equivalent to the term “сталевий трос для аварійного спуску”:
a) company man
b) geronimo (tinkerbell) line
c) drilling crew
d) no correct variant

21. Explain the meaning of the term “casing”:
a) large diameter pipe that is inserted into a recently drilled section of a borehole and typically
held into place with cement
b) a multi-sheave pulley used to raise or lower the drill string and casings into a well bore
c) the catwalk along the side of the derrick where the derrick man works
d) no correct variant

22. Explain the meaning of the term “semisubmersible rig”:
a) the catwalk along the side of the derrick where the derrick man works
b) large diameter pipe that is inserted into a recently drilled section of a borehole and typically
held into place with cement
c) a special marine vessel used in a number of specific offshore roles such as offshore drilling
rigs, safety vessels, oil production platforms, and heavy lift cranes
d) no correct variant

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