The effect of pipeline surface roughness on the interaction between submarine landslides and pipelines may not be insignificant has rarely been quantified. In this paper, a previously validated computational fluid dynamics model is employed to study suspended or laid-on-seabed pipelines, respectively, which are roughened in order quantify roughness. Here, four orders magnitude roughnesses chose...

In the paper, we address Bayesian sensitivity issues when integrating experts’ judgments with available historical data in a case study about strategies for the preventive maintenance of low-pressure cast iron pipelines in an urban gas distribution network. We are interested in replacement priorities, as determined by the failure rates of pipelines deployed under different conditions. We relax ...

Formation of natural gas hydrate is a serious problem in the gas and oil industry because it can plug pipelines and destroy the equipment. This study aimes to evaluate the concentration effect of glycol ethers on their synergism with a commercial kinetic hydrate inhibitor (Luvicap 55W) in sweet natural gas-water systems at a constant temperature of 4 oC and pressure of 95 bar. Hydrate formation...

The crude oil in pipelines should remain at high temperature and pressure to satisfy the fluidity requirement of deep-sea transportation consequently lead global buckling pipelines. Uncontrolled is accompanied by pipeline damage leakage; therefore, active control needed. Pipe-in-pipe (PIP) systems have been widely used because protection insulation characteristics outer pipe inner pipe. In this...