發(fā)布時(shí)間：2018-01-04 23:03

  本文關(guān)鍵詞：油田分層注水井中流體流動(dòng)規(guī)律研究　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 分層注水 井筒管流 配水器節(jié)流 地層滲流 流量調(diào)配 注水井

【摘要】：為了保證油田穩(wěn)產(chǎn)、高產(chǎn)的同時(shí)補(bǔ)充地層的能量,我國大多數(shù)油田都采用注水開采為主要開采方式。但是地層具有非均質(zhì)性,因此對地層籠統(tǒng)注水,效率不高。這就需要對油層合理劃分,進(jìn)行分層注水,將水符合要求的分配到各層段。對油田注水時(shí),常以流體的流動(dòng)規(guī)律為分層注水的理論指導(dǎo)。本文將注水井中的流動(dòng)分為配水器節(jié)流、井筒管流和地層滲流,分別研究了它們各自的流動(dòng)規(guī)律和考慮了周圍井網(wǎng)的影響下三者的耦合流動(dòng)。在井筒管流的研究中,運(yùn)用伯努利方程,建立了各層配水器嘴前壓力和井口壓力的關(guān)系式;在研究配水器節(jié)流時(shí),對配水器中的流動(dòng)進(jìn)行數(shù)值模擬,發(fā)現(xiàn)注入量的平方和水嘴的總壓損失成正比;在研究地層滲流時(shí),計(jì)算了定流量注入的無限大地層中,垂直裂縫井、考慮井筒半徑的直井和不考慮井筒半徑的直井的井底壓力表達(dá)式。最后綜合考慮三種流動(dòng),得出了每層注入量與井口壓力及每層水嘴直徑的關(guān)系式。通過理論分析,給出了一種具體的流量調(diào)配方法,即升壓法。為了提高現(xiàn)場水嘴調(diào)配的效率,減輕操作員的勞動(dòng)強(qiáng)度,開展了一系列的室內(nèi)試驗(yàn)。通過對注水井井筒內(nèi)流體不穩(wěn)定流動(dòng)運(yùn)動(dòng)方程的建立,確定井筒內(nèi)壓力分布規(guī)律。設(shè)計(jì)加工室內(nèi)水嘴試驗(yàn)裝置,進(jìn)行水嘴局部阻力系數(shù)和流量系數(shù)規(guī)律的實(shí)驗(yàn),從而建立嘴損關(guān)系曲線。編制出水嘴調(diào)配軟件,實(shí)現(xiàn)快速、合理調(diào)配水嘴,建立合理的注水井工作制度。
[Abstract]:In order to ensure the stable oil production, high yield and energy supplement formation, most of the oil fields in China are used as the main way of water flooding exploitation. But the formation heterogeneity, so the formation of commingled water injection, the efficiency is not high. This requires a reasonable division of the reservoir, by stratified water, water will meet the requirements of the assigned to each layer. For the injection, often to the law of fluid flow theory of layered water injection. In this paper the injection well flow is divided into water throttle, wellbore flow and reservoir seepage, respectively to study their respective flow law and taking into account the influence of coupling flow pattern around the three in. Study on wellbore flow, using the Bernoulli equation, the equation of each layer of water regulator mouth pressure and wellhead pressure; in the study of water distribution throttle, numerical simulation of the flow in the water distributor, found the injection quantity The total pressure loss is proportional to the square and tap; on percolation, constant flow into the calculation of infinite formation in vertical fractured well, considering the vertical well bore radius and does not consider the expression of bottom hole pressure of vertical well bore radius. Finally, considering the three kinds of flow, the relationship between each layer of injection the amount and type of wellhead pressure and nozzle diameter of each layer. Through theoretical analysis, the paper proposes a flow allocation method, namely boosting method. In order to improve the efficiency of field water allocation, reduce the labor intensity of the operator, carried out a series of laboratory tests. Through the establishment of water injection wellbore fluid unsteady flow inside the equations of motion, determine the pressure distribution within the wellbore. Design and processing of indoor tap test device, tap the local resistance coefficient and flow coefficient of the experiment, so as to establish the pressure curve. For water faucet Distribution software is used to realize rapid and reasonable allocation of water nozzle and establish a reasonable working system for water injection wells.

【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE357.6

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本文編號：1380464