gas hydrates are a costly problem when they plug oil and gas pipelines. the best way to determine the hft and pressure is to measure these conditions experimentally for every gas system. since this is not practical in terms of time and money, correlations are the other alternative tools. there are a small number of correlations for specific gravity method to predict the hydrate formation. as th...

High-speed circuits use latch-based pipelines in some of their most delay-critical parts. For latch-based pipelines, the path delay fault coverage provided by the classical approaches is often abysmally low and none of the classical design-for-testability (DFT) approaches can be used to simplify delay testing or to improve coverage. In [1], we presented the first DFT approach for delay testing ...

Recently, with large-scale use of natural gas and massive constructions of gas pipelines, more and more public concern is focused on pipeline leakage. The leakage caused by holes on gas pipelines generates economic losses to gas companies and causes risks to the environment and sometimes accidents. In order to detect and locate pipeline rupture immediately, the leakage detection method plays a ...

Gas hydrate blockage in pipelines during offshore production becomes a major problem with increasing water depth. In this work, a series of experiments on gas hydrate formation in a flow loop was performed with low flow rates of 0.33, 0.66, and 0.88 m/s; the effects of the initial subcooling, flow rate, pressure, and morphology were investigated for methane hydrate formation in the flow loop. T...

The Engineering industry is constantly exploring an effective and fast-solving method for complicated engineering problems. adaptation of artificial intelligent technology can diminish the time-consuming conventional analysis methods, especially in offshore engineering. For that reason, this study pursued to build a prediction model predict residual strength API 5L X42 subsea pipelines. An neur...