本文關(guān)鍵詞：特殊工況下連續(xù)油管作業(yè)機(jī)注入頭失效分析與研究　出處：《大連交通大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 連續(xù)油管作業(yè)機(jī) 注入頭 特殊工況 失效分析

【摘要】：連續(xù)油管作業(yè)機(jī)憑借其作業(yè)成本低、操作便捷、作業(yè)效率高等優(yōu)點(diǎn)被廣泛應(yīng)用于油氣田作業(yè)。注入頭是連續(xù)油管作業(yè)機(jī)的核心部件,其性能優(yōu)劣直接決定整機(jī)的工作性能。當(dāng)連續(xù)油管作業(yè)機(jī)在特殊工況工作,對(duì)注入頭的性能要求更高,如果注入頭性能達(dá)不到特殊工況要求,將會(huì)造成不可估量的經(jīng)濟(jì)損失,甚至?xí)＜吧�。因此�?duì)連續(xù)油管注入頭進(jìn)行特殊工況失效研究具有重要的理論指導(dǎo)意義和經(jīng)濟(jì)價(jià)值。對(duì)連續(xù)油管作業(yè)機(jī)作業(yè)的特殊工況和注入頭的失效形式進(jìn)行了初步分析。首先,對(duì)連續(xù)油管作業(yè)機(jī)的基本組成及注入頭的基本結(jié)構(gòu)進(jìn)行了分析;然后,對(duì)連續(xù)油管作業(yè)機(jī)作業(yè)的特殊工況進(jìn)行了分析,得出了連續(xù)油管作業(yè)機(jī)作業(yè)的特殊工況有多種;最后,對(duì)注入頭可能出現(xiàn)的失效進(jìn)行初步分析,得出應(yīng)重點(diǎn)分析井噴相關(guān)工況下鏈條失效、卡鉆工況下管塊夾持系統(tǒng)失效及井筒堵塞工況下井口無(wú)支撐段油管壓曲失效。對(duì)井噴相關(guān)工況下注入頭鏈條進(jìn)行了失效分析。對(duì)鏈板和滾子進(jìn)行了疲勞失效分析,得出了鏈條起出油管的極限提升速度;對(duì)鏈條中的銷軸進(jìn)行了強(qiáng)度校核,驗(yàn)證了銷軸是否滿足強(qiáng)度要求;對(duì)鏈輪與滾子的接觸進(jìn)行了有限元分析,找出了鏈輪失效的原因。對(duì)卡鉆工況下注入頭管塊夾持系統(tǒng)進(jìn)行了失效研究。理論計(jì)算了卡鉆工況下注入頭的臨界提升力和臨界夾緊力;對(duì)偏載夾持失效與錯(cuò)位夾持失效進(jìn)行了有限元分析,得出了兩種夾持方法對(duì)油管的夾持損傷程度;提出了提高管塊夾持性能的方法,并對(duì)其進(jìn)行了分析與研究。對(duì)井筒堵塞工況下井口無(wú)支撐段油管進(jìn)行了壓曲分析。對(duì)比分析了連續(xù)油管的特征值壓曲與非線性壓曲,得出了兩種分析下油管壓曲臨界載荷;研究了影響油管壓曲的因素并分析了各因素對(duì)油管壓曲臨界載荷的影響。
[Abstract]:Continuous tubing machine is widely used in oil and gas field operation by virtue of its low operating cost, convenient operation and high working efficiency. Injection head is the core component of continuous tubing machine. Its performance directly determines the performance of the whole machine. When the continuous tubing machine works under special conditions, the performance of the injection head is higher, if the performance of the injector does not reach the special working conditions. Will cause incalculable economic losses. Therefore, it is of great theoretical significance and economic value to study the failure of continuous tubing injector under special working conditions. It's a preliminary analysis. First of all. The basic composition of the continuous tubing machine and the basic structure of the injection head are analyzed. Then, the special working conditions of coiled tubing machine are analyzed, and it is concluded that there are many kinds of special working conditions of coiled tubing machine. Finally, the possible failure of injection head is analyzed preliminarily, and the chain failure under blowout related condition should be analyzed emphatically. Failure of pipe block clamping system under drilling condition and tubing buckling failure of unsupported section of wellhead under wellbore clogging condition. Failure analysis of injection head chain under blowout related condition, fatigue failure analysis of chain plate and roller are carried out. . The limit lifting speed of the chain tubing is obtained. The strength of the pin shaft in the chain is checked to verify whether the pin shaft meets the strength requirement. The contact between sprocket and roller is analyzed by finite element method. The causes of the failure of the sprocket are found out. The failure of the clamping system of the injection head is studied. The critical lifting force and the critical clamping force of the injection head are calculated theoretically. The finite element analysis of offset clamping failure and staggered clamping failure is carried out, and the degree of clamping damage to tubing by two kinds of clamping methods is obtained. A method to improve the clamping performance of pipe blocks is proposed. It is analyzed and studied. Under the condition of wellbore plugging, the tubing in the unsupported section of wellhead is analyzed. The characteristic value and nonlinear buckling of continuous tubing are compared and analyzed. The critical load of tubing buckling under two kinds of analysis is obtained. The factors affecting the tubing buckling are studied and the influence of each factor on the critical load of tubing buckling is analyzed.
【學(xué)位授予單位】：大連交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE93

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