نتایج جستجو برای: natural gas pipeline
تعداد نتایج: 735257 فیلتر نتایج به سال:
The main aim of this study is to identify the most important natural gas pipeline failure causes and interrelation analysis. In research, rough analytic hierarchy process (Rough-AHP) used rank order. Then a combination decision-making trial evaluation laboratory (DEMATEL) interpretive structural modeling (ISM) method applied generate level importance. comparison traditional DEMATEL Rough-DEMATE...
Oil and Gas offshore pipelines, often pass through large geographical areas, from the supply point to the end-user, crossing seismic-active areas. For unburied pipelines, both seismic ground wave and permanent ground deformation can cause severe damage to pipelines, depending on the pipeline geometry and connected structures. Due to the largely non-linear nature of the problem, a finite element...
In order to achieve integrated condition in the girth welding of high pressure natural gas transmission pipelines, the weld zones and its surrounding area should have good mechanical properties. Residual stresses are an important defect especially in the girth welding of the pipeline. In this study, two API X70 steel pipes (with spiral seam weld) of 56 inches outside diameter and 0.780 inch wal...
China-Myanmar oil & gas pipeline project covers 7,676 miles in all. The project met with complex geological conditions, construction types along the line, and long-distance oil & gas parallel laying pipeline. Because the pipeline layout and the construction are more complicated, it is necessary to make the stress analysis of oil & gas parallel laying pipeline traversing tunnels. Software CAESAR...
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