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5 Most rigs require more than one engine to furnish the needed power.
6 The drawworks is a small, light piece of machinery.

7 A cathead is a kelly, on which a line, such as rope, cable, or chain is coiled.
8 In Canada, and many other countries, they measure density of drilling mud in
kilograms per square centimeter.

9 Drillers operate the top drive from their control console on the rig floor.
10 A degasser is used when the amount of gas is not enough to make the well a
producer; instead, it is just enough to contaminate the mud.

7 Fill in the gaps.

a) pump d) rotary g) equipment

b) circulating e) mud pump h) collars

c) stand pipe f) circulates i) kelly

Mud 1) through many pieces of 2), all of which play an important role.3)
equipment includes the mud 4), the discharge line, the standpipe, the 5)hose, the
swivel (or top drive), and the kelly (on rigs with a rotary- table system), the drill pipe,
the drill 6), the bit, the annulus, the return line, the shale shaker, the desilter, the
desander, the mud tanks, and the suction line. The 7) takes mud from the mud tanks
and sends it out a discharge line to a standpipe. Mud flows out of the 8) and into the
rotary hose, which is connected to the swivel on rotary-table system rigs or to the top
drive. Mud goes down the 9) on rigs with a rotary table; on rigs with a top drive, mud
goes through passageways inside it.

8 Scan the text and correct spelling and grammar mistakes.
With instructions out of he operator and possybly a driling fluids engineer,
derrickman moreover add special clayto the water between oil. These clay, when
thoroghly mixed into the mud, keeps the cuttings on suspension as they move up the
hole. When driller stops pumping the mud for all reason, the clay makes temporarily
the mud gel. The gelled mud keeps the cutting suspended even where the mud is not
muving. When the driller break circulation (starts pumping again), the mud is liquefie,
or ungels, to move behind the hole.

Translation section

9 Translate the following expressions at a quick pace.

Спеціальне механічне обладнання, свіча запалювання, електрогенератори,
передача електроенергії, надпотужне колесо, талевий блок, барабан, що
обертається, сталева котушка барабану, міцний хомут для труб, волокняний
канат, кріплення нерухомого кінця канату, система верхнього приводу.

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