【摘要】：目前,油田注水井普遍存在井斜大、沾污結(jié)垢以及層間干擾等嚴(yán)重問題,而現(xiàn)有常規(guī)配水系統(tǒng)往往很難真正實(shí)現(xiàn)精細(xì)化分層配水作業(yè),其原因在于:常規(guī)配水系統(tǒng)中的配水器水嘴安裝在管柱的一側(cè)(偏心配水器),且配水器水嘴開度在井下是不可調(diào)的,為此,本論文設(shè)計(jì)研發(fā)了一種水嘴安裝于配水器中心且能夠在井下完成水嘴開度調(diào)節(jié)的配水系統(tǒng)—同心配水系統(tǒng)。文中對(duì)同心配水系統(tǒng)進(jìn)行了系統(tǒng)總體方案設(shè)計(jì);對(duì)系統(tǒng)中的核心部件—同心配水器進(jìn)行了3D結(jié)構(gòu)設(shè)計(jì);在確定了其具體結(jié)構(gòu)后,運(yùn)用運(yùn)動(dòng)學(xué)理論及ADAMS運(yùn)動(dòng)學(xué)仿真軟件對(duì)其螺紋傳動(dòng)機(jī)構(gòu)進(jìn)行了運(yùn)動(dòng)分析,得到了在特定轉(zhuǎn)速下的中心筒的運(yùn)動(dòng)規(guī)律;利用有限元理論與ANSYS有限元分析軟件對(duì)其中心筒調(diào)節(jié)卡槽結(jié)構(gòu)進(jìn)行力學(xué)分析,得到了卡槽在驅(qū)動(dòng)扭矩下的變形量、等效應(yīng)力、等效應(yīng)變的變化范圍;運(yùn)用流體力學(xué)理論及FLUENT流場(chǎng)分析軟件對(duì)其水嘴出流口流場(chǎng)進(jìn)行了分析,得到了在模擬工況下的中心筒選升高度、注水量與進(jìn)出口壓差、水嘴局部阻力系數(shù)之間的關(guān)系;完成了對(duì)同心配水系統(tǒng)配套設(shè)備(封隔器以及測(cè)調(diào)儀、TPC控制器等)的選型。本文通過對(duì)同心配水器傳動(dòng)螺紋機(jī)構(gòu)的運(yùn)動(dòng)學(xué)、力學(xué)和理論分析與模擬仿真分析,和對(duì)其水嘴出流口流場(chǎng)的理論與仿真分析,充分驗(yàn)證了同心配水器結(jié)構(gòu)設(shè)計(jì)的合理性與正確性,以及其精細(xì)化注水功能的可實(shí)現(xiàn)性。利用本同心配水系統(tǒng)對(duì)地層進(jìn)行分層注水,可以提高注入水源的利用率,減少注水作業(yè)的人工成本,提高了油田開發(fā)的綜合效益。
[Abstract]:At present, there are many serious problems in oilfield water injection wells, such as large well deviation, fouling and scaling, interlayer interference, etc. However, the existing conventional water distribution system is often difficult to realize fine and stratified water distribution operation. The reason is that the nozzle of the water distributor in the conventional water distribution system is installed on one side of the pipe string (eccentric water distributor), and the opening of the nozzle of the water distributor is not adjustable in the downhole. In this paper, a kind of water distribution system-concentric water distribution system, which is installed in the center of the water distributor and can adjust the opening of the nozzle in the downhole, is designed and developed. In this paper, the overall scheme of the concentric water distribution system is designed, and the 3D structure of the concentric water distributor, the core component of the system, is designed. The kinematics theory and ADAMS kinematics simulation software are used to analyze the motion of the thread drive mechanism, and the motion law of the center cylinder under the specific speed is obtained. By using finite element theory and ANSYS finite element analysis software, the deformation, equivalent stress and equivalent strain range of the slot under driving torque are obtained. The flow field at the outlet of the nozzle is analyzed by using the fluid mechanics theory and the FLUENT software. The relationship among the selected height of the central cylinder, the water injection volume and the inlet and outlet pressure difference, and the local resistance coefficient of the nozzle is obtained under the simulated working condition. The equipment of concentric water distribution system (Packer, TPC controller and so on) has been selected. In this paper, the kinematics, mechanics, theoretical analysis and simulation analysis of the thread mechanism of concentric water dispenser drive, as well as the theoretical and simulation analysis of the flow field at the outlet of its nozzle are presented. The rationality and correctness of the structure design of concentric water dispenser and the realizability of its fine water injection function are fully verified. Using this concentric water distribution system for stratified water injection, the utilization rate of injected water source can be increased, the labor cost of water injection operation can be reduced, and the comprehensive benefit of oilfield development can be improved.
【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)】：TE934.1

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本文編號(hào)：2188949