本文關(guān)鍵詞： 旋流裝置 抽油泵 結(jié)構(gòu)設(shè)計(jì) 油砂分離 參數(shù)優(yōu)選　出處：《西安石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：由于我國(guó)大部分油田處于開發(fā)中后期,油井出砂越來(lái)越嚴(yán)重,其結(jié)果會(huì)對(duì)井筒舉升設(shè)備產(chǎn)生嚴(yán)重影響,造成抽油泵砂卡,增大生產(chǎn)成本。本文利用旋流技術(shù)使油-砂實(shí)現(xiàn)分離,提高了抽油泵的防砂效果,解決了砂卡問(wèn)題。首先提出了三種抽油泵防砂方案,根據(jù)其特點(diǎn)優(yōu)選出一種,并設(shè)計(jì)了該防砂抽油泵的總體結(jié)構(gòu)。其特點(diǎn)是在抽油泵上游動(dòng)凡爾組件上部增加旋流裝置,實(shí)現(xiàn)油砂分離。接著對(duì)旋流器內(nèi)部的固液兩相流進(jìn)行了理論分析。闡述了固體顆粒的模擬方法,分析了固-液兩相流的基本特征,研究了抽油泵內(nèi)液體作用在砂粒上的定常阻力、加速度力和所受到的不均勻力。然后采用Gambit軟件建立了旋流裝置虛擬模型,對(duì)其進(jìn)行了網(wǎng)格劃分,用Quad/Pave面網(wǎng)格以及Tet/Hbrid、Tgrid體網(wǎng)格進(jìn)行劃分,并在Fluent軟件下,通過(guò)VOF模型、RSM湍流模型進(jìn)行了固液兩相流數(shù)值模擬。最后根據(jù)數(shù)值模擬結(jié)果,分析了不同參數(shù)對(duì)旋流效果的影響,通過(guò)分析結(jié)果得到以下結(jié)論:當(dāng)環(huán)空面積增加時(shí),分離效果改善;螺旋槽深度增加,分離效果改善,壓力降增加;在一定范圍內(nèi)增加螺旋角,分離效果改善,壓力降增大;砂粒含量變大,分離效果基本不變,壓力降變化不大;入口速度增加,出口切向速度增加,分離效果基本不變,壓力降增加。根據(jù)以上分析結(jié)果,當(dāng)螺旋槽頂部直徑為Φ22mm,螺旋槽高度為15mm,螺旋角為60?時(shí),抽油泵的防砂效果達(dá)到最佳工作條件。
[Abstract]:As most oil fields in China are in the middle and late stage of development, the sand production of oil wells is becoming more and more serious, and the results will have a serious impact on the wellbore lifting equipment, resulting in a sucker pump sand card and an increase in production cost. In this paper, the oil-sand separation is realized by using swirling technology. The sand control effect of sucker pump is improved, and the problem of sand card is solved. Firstly, three kinds of sand control schemes of sucker pump are put forward, and one of them is selected according to its characteristics. The overall structure of the sand control sucker pump is designed, which is characterized by the addition of swirl device to the upper part of the swimming Val assembly on the sucker pump. Oil sand separation is realized. Then the solid-liquid two-phase flow in the cyclone is theoretically analyzed. The simulation method of solid particles is described, and the basic characteristics of solid-liquid two-phase flow are analyzed. In this paper, the steady resistance, acceleration force and non-uniform force of liquid acting on sand particles in subsurface pump are studied. Then the virtual model of swirl device is established by using Gambit software, and it is meshed. Quad/Pave mesh and Tet / Hbridge Tgrid body grid are used to divide the solid / liquid two-phase flow in Fluent software. Finally, according to the numerical simulation results, the influence of different parameters on the swirl effect is analyzed. The following conclusions are obtained from the analysis: when the annulus area increases, the separation effect is improved, the spiral groove depth is increased, the separation effect is improved, the pressure drop is increased, the separation effect is improved and the pressure drop is increased by increasing the spiral angle within a certain range. The sand content increases, the separation effect is basically unchanged, the pressure drop changes little; the inlet velocity increases, the exit tangential velocity increases, the separation effect is basically unchanged, and the pressure drop increases. When the top diameter of the spiral groove is 桅 22mm, the height of the spiral groove is 15mm, the helical angle is 60? At the same time, the sand control effect of the pumping pump reaches the best working conditions.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE933.3

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本文編號(hào)：1544450