Building on synergies with the oil and gas sector, geothermal companies seek to go hotter and deeper to unleash energy.

Furthermore, working in ultra-deepwaters, the drilling riser pipe may span thousands of feet from the bottom of the semisub to the stationary subsea well equipment located on the ocean floor.

Transocean Ltd.’s RIG semi-submersible drilling rig, Transocean Barents, is making its way to the Neptun Deep project for a 10-well drilling mission, marking a significant phase in Romania’s offshore ...

the legs are lowered to the ocean's floor and the rig hull and drilling equipment is elevated well above the water's surface and away from any potential waves. The first type of elevating device ...