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recently drilled section of a borehole and
typically held into place with cement
4 monkey board d department head in charge of the drilling
department
5 subsea blowout e short length of pipe used to connect two joints
preventer of casing
6 roustabout f mechanically powered wrench used to make
up or break out a drill rod, casing, or pipe
string
7 casing g a specialised marine vessel used in a number
of specific offshore roles such as offshore
drilling rigs, safety vessels, oil production
platforms, and heavyliftcranes
8 power tongs h a mixture of clays, water, and chemicals
pumped down the drill string while an oil well
is being drilled to lubricate the mechanism,
carry away rock cuttings, and maintain
pressure so that oil or gas does not escape
9 semisubmersible i a large, specialized valve used to seal, control
rig and monitor oil and gas wells
10 drilling mud j a worker who maintains all things in the oil
field

Pre-reading and while-reading tasks

3 Scan the text and answer the following questions.

 Which types of operating companies do you know?
 What is the difference between daywork, footage and turnkey
contracts?
 What is the main function of supply companies?
 What is the difference between the power tongs and wrenches?

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