... and the excess energy is transferred back into the drilling system reducing the amount of fuel consumed as well as operating expenses. This paper details the new approach to rig power systems, the kinetic energy recovery system and its benefits: operating cost savings through reduced energy consumption...

.... While the progression through the latter 20th century and into the 21st saw incremental innovations in the design of deepwater drilling vessels, it was the advent of dynamic positioning (DP) and cyber-based rigs that led to a sea change in the industry. To reach ever more challenging reservoirs...

... that the pumping requirements exceed the capability of a relief-well rig, particularly when in deeper waters and/or where the reservoir is shallow. Installing a Relief Well Injection Spool (RWIS) between the wellhead and the blowout preventer (BOP) on a relief well provides additional inlets for pumping kill mud...

... mixed and then taken to the rig for storage until req uired for the 26-in. hole section. The process continued until 30,000 bbl were created and sent offshore. The 26-in. interval was successfully drilled in 30 hours. Mud density was 10.7 lbm/gal, which was achieved by combining a total of 5, 544 bbl...

... Abstract Chevron is working with AGR Subsea, Pacific Drilling, GE Oil and Gas, and others to deploy the world’s first commercial Dual Gradient Drilling (DGD) System. The DGD system will be installed on a Pacific Drilling Samsung 12,000 Class rig currently being built in Korea. It is expected...