Jackup – Subsea Oil and Gas Directory
A jack up rig or a jack-up oil rig is a mobile rig for drilling oil and gas wells. Jack up rigs have long legs that are lowered to the seabed. When the rig is safe on the seabed, the platform deck itself is jacked up by the water. Jack-up rigs have an obvious limitation – they cannot be used at great depths. Modern jack-up rigs can drill at ...