... resource in the ocean. Submarine pipelines, as one of the popular offshore infrastructures, have been extensively used for transportation of natural gas and oil from offshore platform, and disposal of industrial as well as municipal waste. To ensure the safety of usage of such submarine pipelines...

... risk assessment submarine pipeline ABSTRACT With the increase of human activities at sea, it is inevitable that anchors drop into the water due to operating errors, which may lead to failure of pipelines and cause economic damage and environmental pollution. Previous methods of related...

... numerical model offshore pipeline mechanism hydrodynamic force instability hydraulic gradient upstream oil & gas flow-induced instability seepage flow maximum upward hydraulic gradient pipeline pipe-soil system submarine pipeline coupling simulation gradient flow velocity...

... ABSTRACT The impact of dropped objects and trawl board on submarine pipelines are simulated by a non-explicit finite element method. The new method works in three mechanics. The impact process is simulated by adjusting the material properties. The damage of the pipeline is solved using Cowper...

... Abstract This paper introduces the Shenzhen-Hong Kong submarine pipeline of West to East Gas Pipeline II Project. In specific environmental conditions and submarine pipeline's situation, we carried on the risk identification for pipeline suspending, drop anchor impacting and ship aground...

... water level pore pressure response pipeline pore water tide construction uplift force submarine pipeline offshore pipeline water pressure lifting force equation large-diameter pipeline analytical solution upstream oil & gas excess lifting force pore pressure seepage force Tides...

... ABSTRACT: This paper outlines Cheng-Dao field development mode and peculiarity, and addresses some issues to be noticed in design and management. It describes some methods detecting for outer pipeline and inner pipeline about submarine pipeline. The examples are acoustic wave method and ROV...