Any offshore oil rig that extends past 1500 meters is considered to be an ultra-deepwater production facility. However, that's still nowhere close to the deepest man has explored in the ocean.

Offshore rigs usually also have helipads, living quarters and lifeboats for the crew that work on them, who often stay on the rig away from home for weeks at a time.

Oil rigs around the world ... Scientific American. November 19, 2024. 15 min read. Should Offshore Oil Rigs Be Turned ... Surveys from the early 1980s indicated that one quarter of fishing trips ...

Any offshore oil rig that extends past 1500 meters is considered to be an ultra-deepwater production facility. However, that's still nowhere close to the deepest man has explored in the ocean.