Mechanical Analysis of Deepwater Drilling Bulkheads

Abstract

The Earth's oceans cover about 75% of the surface and contain 34% of global oil resources, with some reserves deeper than 1,000 meters. Deep-sea drilling encounters challenges due to the harsh marine environment. A key component is the water distribution pipe, which links offshore platforms to the seabed. This study examines the environmental loads on these pipes using a nonlinear finite element model. It finds that maximum deformation and internal stress occur near the water surface due to seawater flow and waves. Therefore, the design should enhance resistance to bending, shear, and tensile forces in these upper regions. These findings improve the design of water separators for ultra-deepwater conditions and support offshore oil and gas development.