本文選題：原油輸油管道　切入點(diǎn)：剩余強(qiáng)度　出處：《東北石油大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：原油外輸管道的腐蝕程度隨著管道運(yùn)行年限的增加而不斷加劇。目前國(guó)內(nèi)現(xiàn)有的管道檢測(cè)技術(shù)在針對(duì)不同類型管道的腐蝕缺陷評(píng)價(jià)方面,尚無(wú)統(tǒng)一的標(biāo)準(zhǔn)和方法,給原油管道的維修、大修和完整性管理帶來(lái)一定不確定性,增加了管道運(yùn)營(yíng)的成本。本文運(yùn)用統(tǒng)計(jì)方法分析研究了慶哈輸油管道的腐蝕缺陷特征,從腐蝕缺陷的位置、寬度、長(zhǎng)度以及深度等參數(shù)中,總結(jié)梳理出慶哈輸油管道的總體腐蝕特征形態(tài)和基本分布規(guī)律。為進(jìn)一步減少目前各類評(píng)價(jià)方法的局限性,本文在匯總分析和提煉國(guó)內(nèi)外相關(guān)學(xué)術(shù)研究的基礎(chǔ)上,重點(diǎn)在腐蝕管道評(píng)價(jià)方向采取基于有限元分析的方法對(duì)被腐蝕原油管道的基本強(qiáng)度進(jìn)行了評(píng)估,從而得出更符合原油儲(chǔ)運(yùn)工程要求的總體評(píng)估結(jié)果。將有限元分析法的分析結(jié)果與國(guó)內(nèi)原油工業(yè)的相關(guān)標(biāo)準(zhǔn)和試驗(yàn)結(jié)果進(jìn)行了比較,初步顯現(xiàn)出有限元法的比較優(yōu)勢(shì)。進(jìn)一步支撐了有限元分析法在原油管道剩余強(qiáng)度分析的科學(xué)性,有效性。
[Abstract]:The corrosion degree of crude oil pipeline increases with the increase of pipeline service life. At present, there is no uniform standard and method for the evaluation of corrosion defects of different types of pipeline in the existing pipeline detection technology in China. It brings some uncertainty to the maintenance, overhaul and integrality management of crude oil pipeline, and increases the cost of pipeline operation. This paper analyzes and studies the characteristics of corrosion defect of Qingha oil pipeline by using statistical method, from the position and width of corrosion defect, Among the parameters such as length and depth, the general corrosion characteristics and basic distribution of Qingha oil pipeline are summarized and combed out. In order to further reduce the limitations of various evaluation methods at present, On the basis of summing up and analyzing and refining relevant academic research at home and abroad, this paper focuses on evaluating the basic strength of corroded crude oil pipeline based on finite element analysis in the direction of corrosion pipeline evaluation. Thus, the overall evaluation results that meet the requirements of crude oil storage and transportation engineering are obtained. The results of finite element analysis are compared with the relevant standards and test results of domestic crude oil industry. The comparative advantage of the finite element method is shown preliminarily, which further supports the scientific and effective application of the finite element method in the residual strength analysis of crude oil pipelines.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TE973
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本文編號(hào)：1649278