"An oil rig is any kind of apparatus constructed for oil drilling.
Kinds of oil rig include:
Drilling rig, an apparatus for on-land oil drilling
Drillship, a floating apparatus ...
[Tovább olvasom]
for offshore oil drilling
Oil platform, an apparatus for offshore oil drilling
Oil well, a boring from which oil is extracted" - (Wikipedia (en) 21.06.2021)
