Final answer:
Some underground storage facilities for oil and natural gas include underground reservoirs, shale resources, and LNG and LPG storage.
Step-by-step explanation:
Some underground storage facilities for oil and natural gas include:
- Underground reservoirs: Oil and natural gas are often found trapped in porous rock formations underground, with impermeable caprocks preventing their escape.
- Shale resources: In recent years, shale resources have been identified as a new reserve of natural gas. The extraction of gas from shale has become more economical.
- LNG and LPG storage: Liquefied natural gas (LNG) and liquefied petroleum gas (LPG) can be stored in double-walled, vacuum-insulated containers at or slightly above atmospheric pressure for easier and more economical transportation.