Chevron is about to put the first deepwater drillship designed with the capacity to perform ‘dual gradient drilling’ to work. The ship is a Samsung 12000 design capable of operating in 12,000 ft ...

Dilution-based dual-gradient drilling (DGD) reduces casing strings and drilling costs while increasing hole size at total depth by injecting mud down an artificially-created annulus with a different ...

Drilling operations cause changes in wellbore temperatures that can significantly impact effective fracture gradients. For example, circulation on bottom usually produces bottomhole temperatures that ...

Top PDMS layer with an array of microwells, potentially containing different reagents. Fluid Loading: Illustration of the process where distinct solutions are loaded into the microwells of the top and ...