On the front is a picture of Dr Nnamdi Azikiwe, and on the reverse is an off-shore oil rig.
Oil deposits were found beneath the ocean, too far from the shore to drill from the land. Eventually someone had the bright idea to go and produce these rigs that drill at sea and the first oil rig was born. So, oil rigs were invented to pump the oil located beneath the sea bed far from shore.
Hibernia. It is located off Newfoundland, Canada.
If the rig is relatively close to the sea shore and is located on shallow waters, oil pipes running through the ocean floor are enough to transport the unrefined oil. Otherwise, oil tankers (huge ships with carrying capacity of 2 billion metric tons of oil) are used to transport the oil from the rig to the refinery.
Hibernia. It is located off Newfoundland, Canada.
Oil rig oil Derick
on a oil rig boat
I am looking for a job as a chef on an oil rig
An oil rig is an oil platform or oil production platform. A drilling is different though.
St. Petersburg has an offshore field to build the oil rig.
A "cold-stacked" rig is taken out of service for a significant period of time. The rig's crew is laid off, and its doors are welded shut. When a rig is cold stacked, all fixed costs are avoided except for insurance.
It takes 20000 day to build an oil rig.