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Offshore, the sea and the remoteness of the site complicate
operations. The contractor therefore requires more personnel than on
land. For example, in many areas, regulations require that 1)_______
have an2)_______. The OIM is in charge of the entire rig and has the
final say in any decision that affects the operation. In some cases, the
3)________ is also the OIM; in other cases, the rig has an OIM as
well as a rig superintendent.
Offshore contractors also hire several4)______.They are
general workers on the rig whose duties include unloading supplies
from boats to the rig. They also keep the offshore facility in good
repair. A 5)______ runs the rig's cranes and supervises the
roustabouts. Cranes transfer supplies to and from boats. 6)______
install, maintain, and repair complex 7)_____ that keeps the rig in
constant contact with shore facilities. Medics provide first aid and are
often certified emergency medical technicians, who can stabilize
injured personnel and prepare them for evacuation to shore.On
8)______, such as drill ships and 9)_______, more personnel are
required because in some ways floating rigs are like ships.

8 Scan the text and correct spelling and grammar mistakes.

The rig superintendent supervise a driller, who, in turn,
supervises the derrickmen and the rotary helpers. Since a control
console or an oparating cabin on the rig floor, the driller manipulates
the controls that keep the drilling operation over way (fig. 43). This
person is directly responsible for drilling the hole. Most offshore rigs
and large land rigs, expecially this working outside the U.S., also have
an assistant driller. The assistant driller aids the driller by the rig floor
and helps the driller supervise the derrickman and the rotari helpers.

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