本文選題：低滲透 + 流體分布特征��； 參考：《成都理工大學(xué)》2017年碩士論文

【摘要】：我國低滲透油藏原油資源量大、分布廣、開發(fā)前景廣闊,但低滲透油藏也具有孔隙度小、滲透率低、孔隙結(jié)構(gòu)復(fù)雜、儲層非均質(zhì)強(qiáng)等特點(diǎn),儲層流體分布情況受這些因素影響而更加復(fù)雜。所以,對油藏儲層流體分布特征進(jìn)行分析研究對合理開發(fā)油藏具有極其重要的意義。故本文以烏爾禾烏5井區(qū)百口泉組油藏為例,收集研究區(qū)各項(xiàng)資料,在大量調(diào)研儲層流體分布研究方法相關(guān)文獻(xiàn)的基礎(chǔ)上,主要開展了如下研究:(1)根據(jù)研究區(qū)油藏地質(zhì)相關(guān)資料對油藏地理位置、儲層構(gòu)造、沉積環(huán)境、四性特征、滲流特征等各項(xiàng)特征進(jìn)行了分析,進(jìn)而確定了研究區(qū)百口泉組油藏油藏類型;(2)通過大量調(diào)研儲層流體定性識別方法與流體飽和度定量分析方法,結(jié)合研究區(qū)資料收集情況選取了直觀判別法、曲線重疊法、交會圖法開展儲層流體定性識別研究,選取含油高度法和阿爾奇法開展流體飽和度定量分析研究;(3)一方面,從定性角度構(gòu)建了孔隙度-深淺雙側(cè)向電阻比交會圖定性識別儲層流體特征;另一方面,從定量角度先利用含油高度法宏觀分析了儲層流體分布特征,確定了主力油層宏觀油水分布特征,其次對研究區(qū)阿爾奇公式進(jìn)行了修正,構(gòu)建出了修正后的阿爾奇公式交會圖版,定量分析了儲層流體飽和度;通過分析研究區(qū)儲層流體飽和度分布情況與儲量分布情況,對其分布差異進(jìn)行了分析,并進(jìn)一步分析了儲層流體飽和度分布影響因素;(4)通過分析研究區(qū)生產(chǎn)現(xiàn)狀及單井產(chǎn)能,對研究區(qū)產(chǎn)能分布情況進(jìn)行了分析,結(jié)合流體分布情況將研究區(qū)分為東、中、西、南四個(gè)分區(qū),并對研究區(qū)影響產(chǎn)能的相關(guān)因素進(jìn)行了分析與確定;(5)在以上研究的基礎(chǔ)上對研究區(qū)分為已開發(fā)區(qū)(東、中、西)與未開發(fā)區(qū)(南)開展了合理開發(fā)對策研究,通過不同分區(qū)典型井區(qū)合理開發(fā)方式的確定對已開發(fā)區(qū)合理開發(fā)方式進(jìn)行了論證,確定了分區(qū)開發(fā)開發(fā)效果更好;南區(qū)則根據(jù)飽和度分布進(jìn)行了井網(wǎng)部署研究,取得了較好開發(fā)效果。
[Abstract]:Low permeability reservoirs in China are characterized by large amount of crude oil resources, wide distribution and broad prospects for development. However, low permeability reservoirs are also characterized by small porosity, low permeability, complex pore structure, strong heterogeneity and so on. The distribution of reservoir fluid is complicated by these factors. Therefore, the analysis of reservoir fluid distribution is of great significance to the rational development of reservoir. Therefore, this paper takes Baikouquan formation reservoir in Wuerhewu well 5 area as an example, collects all kinds of data in the study area, and on the basis of a large number of literature on the research methods of reservoir fluid distribution, The main research work is as follows: (1) based on the relevant reservoir geological data in the study area, the reservoir location, reservoir structure, sedimentary environment, four characteristics, percolation characteristics and other characteristics are analyzed. Furthermore, the reservoir type of Baikouquan formation in the study area is determined. Through a large number of investigations, the qualitative identification method of reservoir fluid and the method of quantitative analysis of fluid saturation are selected. In combination with the data collection in the study area, the intuitive discriminant method and the curve overlap method are selected. Cross plot method is used to identify reservoir fluid qualitatively, and oil height method and Archie method are selected to carry out quantitative analysis of fluid saturation. In this paper, the reservoir fluid characteristics are qualitatively identified by the porosity-depth double lateral resistance cross plot, on the other hand, the reservoir fluid distribution characteristics are analyzed macroscopically by using the oil-bearing height method from the quantitative point of view. The macroscopic oil-water distribution characteristics of the main reservoir are determined. Secondly, the Archie formula in the study area is modified, the modified Archie formula intersection chart is constructed, and the reservoir fluid saturation is quantitatively analyzed. By analyzing the distribution of reservoir fluid saturation and reserves distribution, the difference of reservoir fluid saturation distribution is analyzed, and the influencing factors of reservoir fluid saturation distribution are further analyzed. Based on the analysis of productivity distribution in the study area, the study is divided into four sub-regions, east, middle, west and south, combined with fluid distribution. On the basis of the above research, we have carried out a reasonable development countermeasure study on the existing development zone (east, middle, west) and undeveloped zone (south). Through the determination of reasonable development methods of typical well areas in different zones, the reasonable development modes of the development zones have been demonstrated, and it has been determined that the zoning development effect is better, while in the southern region, the well pattern deployment is studied according to the saturation distribution. Good development effect has been achieved.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE348

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本文編號：2015942