There are around 1,470 offshore oil rigs around the world. The main purpose of oil rig is to establish a solid formation that supports the drilling operations.
The rig has a back up to carry out all kinds of drilling jobs and also house all the required equipment. Depending on the drilling location requirement, the rig can be either fixed or floating. They can be massive or small to medium sized structures.
Kinds of oil rig include:
- Drilling rig, an apparatus for on-land oil drilling
- Drillship, a floating apparatus for offshore oil drilling
- Oil platform, an apparatus for offshore oil drilling
- Oil well, a boring from which oil is extracted
- drilling ship
- tension leg platform (TLG)
- semi-submersible drilling platform
- jack-up rig
- drilling platform standing on the ocean floor
Once the oil rig has developed an oil or gas field and therefore fulfilled its purpose, it is replaced by a production platform.
Life working on an oil rig looks different today than it once did, thanks to advances in drilling technology, but the job is still physically demanding and potentially dangerous.