Slug Flow Impact Stress Analysis Of A Line

With the continuous development of the oil industry, oil-gas mixture losetechnology has been applied more and more, mix the length of the pipeline with risinglongevity. Within the world currently more than 300 long-distance pipeline of mixed,around the world. In order to satisfy the demand of practical engineering, the world ofthe mixed actively lost technology research, the Chinese petroleum corporation willmix lose technology research into the key technology research projects.Slug flow is oil and gas pipelines to lose the most common type of mixed flow type,two phase flow appeared slug flow in pipeline, pipe running conditions will worseninstability, make the pipeline happened, even makes terminal separator vibrationoccurred, is mixed flow or overflow lost process flow type of biggest cause harm.Therefore, the study of slug flow stress and of great significance.This paper is mainly to the causes of slug flow, the study on the formationmechanism of control and eliminate have important role, find slug flow appeared intwo phase flow, and the stage of pipeline, also is the study of endangering thenecessity and significance. Determine the classification of slug flow, the flow of slugflow characteristic parameters, the influence factors. The mysterious with a specificexample analysis, calculation tucked flow tracking slug flow various parameters, suchas slug frequency, liquid membrane length, fluid play length, slug unit length, liquidmembrane speed, bubbles speed, the average liquid real velocity, the average realvelocity of bubbles, liquid play the liquid rate, after pressure, liquid membrane holdliquid rate and slug unit average hold liquid rate, etc. One of slug flow on maximumrate and slug flow length of study. Then introduce relevant theoretical knowledge ofmechanics analysis, stress analysis the main content and the stress classification, material strength theory, tube system modeling and analysis. Then to slug flowcharacteristics are detailed research, according to the gas-liquid two phase flow slugflow characteristic parameters of the value, the changing rules and the relationshipbetween the characteristic parameters of pipeline, making the time-history curvesforce. Then when rendering process curve analysis, which focus on the tunnel placeslug flow stress influence on accounting, analysis, determine that the hazard place,find out the danger point.This article through the literature access at home and abroad, understanding of thedevelopment of the research slug flow status quo. Combining the present slug flowanalysis method, some commonly used the applicable technology, relevantinternational quite mature simulation software of slug flow, the basic characteristics,influence factors of the inductive analysis. Through an example OLGA softwareanalysis, find out, tracking the cases of the slug flow characteristic parameters andinfluencing conditions. According to get slug flow data Origin software renderingwith force and time schedule curve. Through calculation, analysis CAESARIIsoftware changes of slug flow of its stress curve calculation.