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1 drilling rig a a subsurface pool of hydrocarbons contained
in porous or fractured rock formations
2 petroleum b a machine for hoisting and moving heavy
reservoir objects, consisting of a movable boom
equipped with cables and pulleys and
connected to the base of an upright stationary
beam
3 offshore c the combination of the drillpipe, the
bottomhole assembly and any other tools
used to make the drill bit turn at the bottom
of the wellbore
4 derrick d a work area covered with planks around the
collar of a borehole at the base of a drill
tripod or derrick
5 rig floor e unrefined petroleum or liquid petroleum
6 drill bit f the location supervisor for the drilling
contractor
7 drill string g the tool used to crush or cut rock
8 drawworks h a machine which creates holes in the ground
9 crude oil i the machine on the rig consisting of a large-
diameter steel spool, brakes, a power source
and assorted auxiliary devices
10 toolpusher j located at a distance from the shore

Pre-reading and while-reading tasks

3 Scan the text and answer the following questions.
- What is the purpose of a drilling rig?
- How deep is usually the hole a rig drills?
- What type of rig is it better to visit for the first time? Why?
- Why do masts and derricks have to be strong?
- Why are rig masts and derricks tall?

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