發(fā)布時(shí)間：2018-05-15 05:02

  本文選題：井下油水分離 + 力學(xué)分析��； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：井下油水分離系統(tǒng)因具有結(jié)構(gòu)緊湊、運(yùn)行空間小、分離時(shí)間短等優(yōu)點(diǎn),正逐步成為國(guó)內(nèi)外各大石油企業(yè)所采用的油田開(kāi)采技術(shù)。本文簡(jiǎn)要介紹了井下油水分離系統(tǒng)的研究進(jìn)展以及管柱面臨的技術(shù)難點(diǎn),結(jié)合我國(guó)高含水油田、小尺寸采油套管的開(kāi)采現(xiàn)狀,提出了一種新型的井下油水分離系統(tǒng)。本文選取具體使用工況下的同井注采井下管柱為研究對(duì)象,對(duì)井下油水分離系統(tǒng)進(jìn)行設(shè)計(jì)研究,包括油水分離分系統(tǒng)設(shè)計(jì)、動(dòng)力分系統(tǒng)設(shè)計(jì)、采出層與注入層封隔工藝技術(shù),并對(duì)其進(jìn)行室內(nèi)試驗(yàn)研究;在綜合考慮同井注采工藝流程和多項(xiàng)影響因素的基礎(chǔ)上,建立井下油水分離管柱的力學(xué)模型,通過(guò)計(jì)算管柱核心部分的受力和變形情況,分析得出井下分離管柱的載荷,并對(duì)井下分離管柱進(jìn)行有限元建模及理論分析;依據(jù)井下分離管柱的工程實(shí)際,開(kāi)展了井下分離管柱的模態(tài)分析,根據(jù)得出的固有頻率和振型預(yù)測(cè)了管柱的實(shí)際振動(dòng)響應(yīng)和結(jié)構(gòu)設(shè)計(jì)的薄弱部位;然后開(kāi)展了螺桿泵周期性偏心載荷作用下的管柱諧響應(yīng)分析,得出其位移響應(yīng)曲線(xiàn),獲得了井下分離管柱結(jié)構(gòu)位移等力學(xué)參數(shù)隨頻率的變化規(guī)律;進(jìn)行了管柱工作過(guò)程中電機(jī)啟停下的瞬態(tài)動(dòng)力學(xué)分析,得出管柱的位移動(dòng)態(tài)響應(yīng)規(guī)律和應(yīng)力、變形的分布。結(jié)合管柱力學(xué)分析結(jié)果,對(duì)井下分離管柱中的旋流分離器上端連接部件和止推機(jī)構(gòu)底軸等關(guān)鍵部件進(jìn)行極限載荷計(jì)算,及實(shí)際載荷作用下的結(jié)構(gòu)強(qiáng)度評(píng)價(jià),進(jìn)而對(duì)關(guān)鍵部件進(jìn)行結(jié)構(gòu)優(yōu)化;并根據(jù)脫接器現(xiàn)有問(wèn)題,進(jìn)行了分析優(yōu)選,保證了同井注采管柱長(zhǎng)期運(yùn)行過(guò)程中的可靠性。
[Abstract]:Due to the advantages of compact structure, small operation space and short separation time, the downhole oil-water separation system is gradually becoming the oilfield production technology adopted by large oil enterprises at home and abroad. This paper briefly introduces the research progress of downhole oil-water separation system and the technical difficulties faced by tubing string, and puts forward a new downhole oil-water separation system combined with the present situation of production of small size casing in high water-cut oil field in China. In this paper, the downhole tubing string in the same well is selected as the research object, and the downhole oil-water separation system is designed and studied, including the design of oil-water separation subsystem, the design of power subsystem, and the sealing technology of the produced and injected layers. The mechanical model of downhole oil-water separation string is established on the basis of comprehensive consideration of the same well injection and production process and many influencing factors, and the stress and deformation of the core part of the string are calculated. The load of the downhole separation string is obtained, and the finite element modeling and theoretical analysis of the downhole separation string are carried out, and the modal analysis of the downhole separation string is carried out according to the engineering practice of the downhole separation string. According to the natural frequencies and modes obtained, the actual vibration response of the pipe string and the weak part of the structural design are predicted, and then the harmonic response analysis of the pipe cylinder under the periodic eccentric load of the screw pump is carried out, and the displacement response curve is obtained. The variation law of mechanical parameters such as structural displacement of underground separation string with frequency is obtained, and the transient dynamic analysis of motor start and stop during the working process of string is carried out, and the dynamic response law of displacement and the distribution of stress and deformation of string are obtained. Combined with the results of mechanical analysis of pipe string, the ultimate load of the upper end connecting parts of cyclone separator and the bottom shaft of thrust mechanism in the downhole separation string are calculated, and the structural strength under actual load is evaluated. Then the structure of the key components is optimized and the reliability of the injection and production string in the same well is ensured by analyzing and selecting according to the existing problems of the detacer.
【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(lèi)號(hào)】：TE931.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 郭永偉;;新型防噴脫接器研制與應(yīng)用[J];石油礦場(chǎng)機(jī)械;2016年08期

2 田帥;張氫;秦仙蓉;孫遠(yuǎn)韜;;基于參數(shù)化無(wú)梯度方法的形狀優(yōu)化[J];機(jī)械強(qiáng)度;2016年02期

3 楊青;楊新海;邵濟(jì)明;;一種微型航天器對(duì)接機(jī)構(gòu)的設(shè)計(jì)研究[J];載人航天;2016年01期

4 趙傳偉;李增亮;董祥偉;;螺桿泵井下油水分離系統(tǒng)設(shè)計(jì)及地面試驗(yàn)[J];中國(guó)石油大學(xué)學(xué)報(bào)(自然科學(xué)版);2013年01期

5 蔣明虎;;旋流分離技術(shù)研究及其應(yīng)用[J];大慶石油學(xué)院學(xué)報(bào);2010年05期

6 李增亮;張瑞霞;董祥偉;;井下油水分離系統(tǒng)電泵機(jī)組匹配研究[J];中國(guó)石油大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年03期

7 董世民;張喜順;吳長(zhǎng)杰;郭吉民;;抽油機(jī)井區(qū)塊整體節(jié)能參數(shù)仿真優(yōu)化方法[J];石油學(xué)報(bào);2010年03期

8 李恒清;;螺桿泵同井回注采氣工藝研究[J];油氣田地面工程;2009年03期

9 劉新平;王振波;金有海;;井下油水分離采油技術(shù)應(yīng)用及展望[J];石油機(jī)械;2007年02期

10 苗新蕾;胥宏峰;孫慶義;;定向井螺桿泵采油技術(shù)[J];大慶石油學(xué)院學(xué)報(bào);2006年04期

相關(guān)碩士學(xué)位論文 前3條

1 孫江;采油井筒內(nèi)脫接器及配套管柱結(jié)構(gòu)優(yōu)化設(shè)計(jì)[D];東北石油大學(xué);2012年

2 范菲;井下油水分離同井回注技術(shù)研究[D];中國(guó)石油大學(xué);2010年

3 張瑞霞;電潛泵井下水力旋流油水分離系統(tǒng)匹配設(shè)計(jì)[D];中國(guó)石油大學(xué);2009年

，

本文編號(hào)：1891066