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After the completion of pipeline girth welding joint, the joint may be strengthened or softened and have high residual stress. Most of weld indies are acceptable, but when pipeline work under inner pressure conditions and the weld joint is high-accident risk zone. This paper establishes indirect coupling pipe 3D pipe multilayer V girth weld based on a weld temperature field and stress field of finite...
As Pipeline in wet H2S environment must consider its anti-hydrogen-induced cracking (HIC) and sulfide stress corrosion cracking (SSCC) performance, in this paper, to ensure L245A-pipe mechanical properties qualified under the premise, according to NACE TM 0284–2003 and NACE TM 0177–2005 standard designed eight tests in accordance with L245A-steel pipe and welded joints in the different medium concentration...
The geological disaster often loses pipeline security to finished oil having bigger effect, from the geology angle studying the effect to the pipeline duty such as landslide, mud-rock flow (geology disaster) being unlike area, and then being that the pipeline is safe work and manage provide scientific basis. The article has analyzed the form and cause and disaster occurrence serious consequences that...
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