本文選題：強(qiáng)堿三元復(fù)合驅(qū) + 巖心分析��； 參考：《吉林大學(xué)》2015年碩士論文

【摘要】：杏樹(shù)崗油田是大慶最早開(kāi)展強(qiáng)堿三元復(fù)合驅(qū)現(xiàn)場(chǎng)試驗(yàn)及工業(yè)化推廣的地區(qū)，但是，對(duì)于強(qiáng)堿三元復(fù)合驅(qū)后油層動(dòng)用狀況、儲(chǔ)層物性變化情況、剩余油分布、油層結(jié)垢情況認(rèn)識(shí)不夠深入，需要系統(tǒng)的評(píng)價(jià)主力油層（葡Ⅰ組）強(qiáng)堿三元復(fù)合驅(qū)后油層物性變化和剩余油分布規(guī)律。 本文應(yīng)用新老井測(cè)井資料，通過(guò)河流地層高分辨率精細(xì)對(duì)比、復(fù)合砂體解剖、平面微相精細(xì)分析、點(diǎn)壩砂體精細(xì)建模，實(shí)現(xiàn)全區(qū)精細(xì)統(tǒng)層及單砂體識(shí)別，準(zhǔn)確、精細(xì)揭示平面微相、單砂體分布及點(diǎn)壩內(nèi)部建筑結(jié)構(gòu)。在動(dòng)靜態(tài)資料分析基礎(chǔ)上，應(yīng)用新鉆井和強(qiáng)堿三元前后取心數(shù)據(jù)等更加清晰地認(rèn)識(shí)油層的動(dòng)用規(guī)律及強(qiáng)堿三元體系的驅(qū)油效率。借助激光共聚焦技術(shù)手段，分析強(qiáng)堿三元復(fù)合驅(qū)后儲(chǔ)層微觀剩余油分布特征及成因規(guī)律，結(jié)果表明強(qiáng)堿三元體系能夠溶蝕儲(chǔ)層中的礦物顆粒，并改變巖石潤(rùn)濕性，在礦物顆粒之間形成吸附狀剩余油。利用電鏡掃描和電子探針技術(shù)，觀察強(qiáng)堿三元驅(qū)前后巖心物性變化，，強(qiáng)堿三元復(fù)合驅(qū)前后取心井顯示儲(chǔ)層的物性變差，粘土礦物增加，孔隙結(jié)構(gòu)也相應(yīng)發(fā)生變化，巖石的潤(rùn)濕性由親水性向中性轉(zhuǎn)變，同時(shí)巖心檢測(cè)顯示有硅垢存在。 此研究可加深剩余油形成機(jī)理的研究，進(jìn)一步深化三元復(fù)合驅(qū)油機(jī)理的認(rèn)識(shí)，填補(bǔ)國(guó)內(nèi)外對(duì)于強(qiáng)堿三元復(fù)合驅(qū)引起儲(chǔ)層物性包括孔、滲、流體、巖石潤(rùn)濕性方面研究的空白，能夠進(jìn)一步優(yōu)化三元復(fù)合驅(qū)工業(yè)化推廣的方案設(shè)計(jì)，為挖潛三元復(fù)合驅(qū)后剩余油提供理論依據(jù)，加快進(jìn)一步提高采收率技術(shù)的發(fā)展，為大慶油田三次采油提供技術(shù)儲(chǔ)備。
[Abstract]:Xingshugang Oilfield is the first area in Daqing to carry out field test and industrialization promotion of strong alkali ASP flooding. However, for reservoir production status, reservoir physical property change and residual oil distribution after strong alkali ASP flooding, The understanding of scale formation is not deep enough, so it is necessary to systematically evaluate the variation of reservoir physical properties and the distribution of remaining oil after the ASP flooding of the main reservoir (Group I). In this paper, through high-resolution fine correlation of fluvial strata, anatomy of composite sand bodies, fine analysis of planar microfacies and fine modeling of point-bar sand bodies, the fine strata and single sand bodies in the whole area can be identified accurately by using the new and old well logging data. The plane microfacies, the distribution of single sand body and the interior structure of point dam are revealed in detail. On the basis of dynamic and static data analysis, new drilling and coring data before and after strong alkali ternary system are used to understand more clearly the production law of reservoir and the displacement efficiency of strong alkali ternary system. By means of laser confocal technique, the microcosmic residual oil distribution characteristics and genesis of reservoir after strong alkali ternary flooding are analyzed. The results show that the strong alkali ternary system can dissolve the mineral particles in the reservoir and change the wettability of rock. Adsorptive residual oil is formed between mineral particles. By means of electron microscope scanning and electron probe technique, the changes of core physical properties before and after strong alkali ternary flooding are observed. The coring wells before and after strong alkali ternary flooding show that the physical properties of reservoir become worse, the clay minerals increase, and the pore structure changes accordingly. The wettability of rock changed from hydrophilic to neutral, and the core detection showed the presence of silicon scale. This study can deepen the research on the formation mechanism of residual oil, deepen the understanding of the mechanism of ASP flooding, and fill the blank in the study of reservoir physical properties including pore, permeability, fluid and rock wettability caused by strong alkali ASP flooding at home and abroad. It can further optimize the scheme design of industrialization extension of ASP flooding, provide the theoretical basis for exploiting the potential of remaining oil after ASP flooding, speed up the further development of oil recovery technology, and provide technical reserve for tertiary oil recovery in Daqing Oilfield.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TE357.4

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