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王55低滲透區(qū)塊油藏?cái)?shù)值模擬研究

發(fā)布時(shí)間:2018-06-10 02:05

  本文選題:王55區(qū)塊 + 低滲透; 參考:《東北石油大學(xué)》2015年碩士論文


【摘要】:我國(guó)低滲透油藏儲(chǔ)量十分豐富,分布非常廣泛,具有重要開采價(jià)值。由于滲透能力低,非均質(zhì)性嚴(yán)重,因此開發(fā)較困難。如何高效開發(fā)規(guī)模巨大的低滲透油藏,一直是石油開發(fā)領(lǐng)域的一個(gè)重要課題。勝利油田的王55區(qū)塊為低滲透油藏。區(qū)塊滲透能力低,非均質(zhì)性強(qiáng),地層能量下降很快,開發(fā)難度較大。本文以該區(qū)塊作為研究對(duì)象,建立了區(qū)塊的地質(zhì)模型和數(shù)值模擬模型。本文在歸納了區(qū)塊的物性,分析了開發(fā)歷程,研究了區(qū)塊的地質(zhì)特征和開發(fā)特征的基礎(chǔ)上,分析了低滲透油藏的滲流機(jī)理,建立了考慮啟動(dòng)壓力梯度和應(yīng)力敏感性的微分方程,用數(shù)值方法對(duì)問(wèn)題進(jìn)行了求解,建立了區(qū)塊的三維地質(zhì)模型,精細(xì)描述了區(qū)塊的油水分布、沉積微相、物性參數(shù)分布等。結(jié)合建立的地質(zhì)模型,對(duì)區(qū)塊展開數(shù)值模擬研究,建立了模擬模型,擬合了地質(zhì)儲(chǔ)量和近20年來(lái)的油井開發(fā)歷史,主要包括產(chǎn)油量、產(chǎn)液量、采出程度等,并對(duì)擬合結(jié)果進(jìn)行了評(píng)價(jià),建立的模型精度較高,利用模型對(duì)設(shè)計(jì)的調(diào)整方案進(jìn)行預(yù)測(cè),其結(jié)果可以指導(dǎo)區(qū)塊的下一步開發(fā)。
[Abstract]:Low permeability reservoirs are rich in reserves and widely distributed in China. Because of low permeability and serious heterogeneity, it is difficult to develop. How to efficiently develop large-scale low-permeability reservoirs has always been an important subject in the field of petroleum development. The Wang55 block in Shengli Oilfield is a low permeability reservoir. The block has low permeability, strong heterogeneity, rapid decrease of formation energy and great difficulty in development. In this paper, the geological model and numerical simulation model of the block are established. On the basis of summarizing the physical properties of the block, analyzing the development history, studying the geological and development characteristics of the block, the percolation mechanism of the low permeability reservoir is analyzed, and the differential equation considering the starting pressure gradient and stress sensitivity is established. The numerical method is used to solve the problem, and the 3D geological model of the block is established. The distribution of oil and water, sedimentary microfacies and physical parameters of the block are described in detail. Combined with the established geological model, a numerical simulation study on the block is carried out, and a simulation model is established to fit the geological reserves and the development history of oil wells in the past 20 years, mainly including oil production, liquid production, recovery degree and so on. The fitting results are evaluated and the precision of the established model is high. Using the model to predict the adjustment scheme of the design, the results can guide the further development of the block.
【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】:2015
【分類號(hào)】:P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 侯建鋒;安塞特低滲透油藏合理開發(fā)井網(wǎng)系統(tǒng)研究[J];石油勘探與開發(fā);2000年01期

2 尹艷樹;吳勝和;;儲(chǔ)層隨機(jī)建模研究進(jìn)展[J];天然氣地球科學(xué);2006年02期

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