本文選題：海底管道 + 腐蝕缺陷��； 參考：《天津大學(xué)》2014年碩士論文

【摘要】：隨著海底管道在役年限的增長,管道的腐蝕現(xiàn)象日益嚴(yán)重,從而導(dǎo)致其壁厚減薄,剩余強度和最大安全承壓能力降低,管道失效的可能性不斷增大。為確保管道的安全生產(chǎn)作業(yè),有必要根據(jù)管道的檢測數(shù)據(jù),對管道進行剩余強度評估和安全性校核以指導(dǎo)管道的生產(chǎn)作業(yè)、維護維修乃至更換。目前國內(nèi)外有多種針對管道剩余強度的評估方法,常見的有按照國際通用規(guī)范評估、有限元評估、可靠性分析等方法。各種方法其理論基礎(chǔ)、適用范圍和結(jié)果保守性、精度都不盡相同。本文首先研究了兩種國際通用的腐蝕管道剩余強度評估規(guī)范:ASME B31G評估標(biāo)準(zhǔn)和DNV-RP-F101規(guī)范,對兩種規(guī)范的理論基礎(chǔ)、適用條件和具體評估步驟做了詳細(xì)的研究和分析,并針對某一具體工程實例進行了剩余強度校核。研究有限元分析管道剩余強度的基本方法。本文基于彈塑性力學(xué)理論,利用ABAQUS有限元軟件對管道建立有限元模型,進行非線性有限元分析,并重點對建模和加載過程中的關(guān)鍵性問題進行討論分析,得到了較為優(yōu)化和合理的建模和加載方法。根據(jù)研究所得建模加載方法,針對工程實例建立腐蝕管道三維實體模型,計算管道剩余強度。結(jié)合以上三種評估方法的原理,對比不同方法下工程實例管道的計算結(jié)果,得到三種方法在適用范圍、操作難易程度以及結(jié)果保守性和精度等方面的差異,為在役海底管道剩余強度的評估提供指導(dǎo)。
[Abstract]:With the increase of the service life of the submarine pipeline, the corrosion phenomenon of the pipeline becomes more and more serious, which leads to the thinning of the wall thickness, the decrease of the residual strength and the maximum safe bearing capacity, and the increasing possibility of pipeline failure. In order to ensure the safe operation of pipeline, it is necessary to evaluate the residual strength and check the safety of pipeline according to the inspection data of pipeline, so as to guide the production, maintenance and even replacement of pipeline. At present, there are a variety of evaluation methods for residual strength of pipeline at home and abroad, such as evaluation according to international general specification, finite element evaluation, reliability analysis and so on. The theoretical basis, application range and result conservatism of various methods are different. In this paper, two kinds of international standards for evaluating residual strength of corroded pipelines are studied, namely, the W ASME B31G evaluation standard and the DNV-RP-F101 code. The theoretical basis, applicable conditions and concrete assessment steps of the two specifications are studied and analyzed in detail. At the same time, the residual strength of a concrete project is checked. The basic method of finite element analysis for residual strength of pipeline is studied. Based on the theory of elastic-plastic mechanics, the finite element model of pipeline is established by Abaqus finite element software, and the nonlinear finite element analysis is carried out, and the key problems in modeling and loading are discussed and analyzed. A more optimized and reasonable method of modeling and loading is obtained. According to the method of modeling and loading, the three-dimensional solid model of corroded pipeline is established for engineering example, and the residual strength of pipeline is calculated. Combined with the principles of the above three evaluation methods, by comparing the calculation results of engineering examples with different methods, the differences of the three methods in terms of applicability, operation difficulty, conservatism and accuracy of the results are obtained. To provide guidance for the evaluation of the remaining strength of existing submarine pipelines.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：P756.2

【參考文獻】

相關(guān)期刊論文 前10條

1 程海霞;司姍姍;王炳英;侯振波;;三版ASME B31G標(biāo)準(zhǔn)的評價方法比較研究[J];內(nèi)蒙古石油化工;2014年04期

2 方娜;陳國明;朱紅衛(wèi);孟會行;;海底管道泄漏事故統(tǒng)計分析[J];油氣儲運;2014年01期

3 劉雅馨;錢基;熊利平;郭寶申;丁建可;熊偉;張淑霞;;我國深水油氣開發(fā)的必要性與可行性分析[J];中國礦業(yè);2013年03期

4 朱小丹;牛國富;羅志偉;閆春暉;祝愨智;;長輸油氣管道經(jīng)濟壽命測算[J];油氣儲運;2012年02期

5 苗玉坤;趙學(xué)峰;;我國海洋石油裝備現(xiàn)狀及市場前景[J];石油礦場機械;2011年09期

6 馬彬;帥健;李曉魁;王俊強;馮慶東;;新版ASME B31G—2009管道剩余強度評價標(biāo)準(zhǔn)先進性分析[J];天然氣工業(yè);2011年08期

7 李國輝;閆術(shù)明;尤偉星;;含有單個腐蝕缺陷的海底管道剩余強度評估[J];石油工程建設(shè);2011年04期

8 趙振中;;論石油能源的未來發(fā)展[J];科技傳播;2011年08期

9 趙洪山;劉新華;白立業(yè);;深水海洋石油鉆井裝備發(fā)展現(xiàn)狀[J];石油礦場機械;2010年05期

10 殷鑫;;淺論石油能源[J];黑龍江科技信息;2009年32期

相關(guān)碩士學(xué)位論文 前2條

1 趙坤;新時期中國石油能源安全戰(zhàn)略探析[D];山東師范大學(xué);2009年

2 白清東;腐蝕管道剩余強度研究[D];大慶石油學(xué)院;2006年

，

本文編號：2000639