【摘要】：葡108區(qū)塊沉積環(huán)境為三角洲前緣相沉積,儲層砂體在平面上以水下分流河道微相砂體為主分布,在南北方向上主為要條帶狀展布,在平面的連續(xù)性比較差。當(dāng)油田進入開采后期從而油田進入高含水的后期時候,油田開發(fā)會受砂體展布特征等的影響,葡108區(qū)塊剩余油分布復(fù)雜而零散,從而制約著油田開發(fā)效果。因此,在油田開發(fā)中我們把揭示剩余油在地下的分布規(guī)律,余油儲量、空間分布等特征及地質(zhì)因素、注采狀況之間的關(guān)系進行比較分析是挖潛剩余油、提高驅(qū)油效率及原油采出程度的前提和基礎(chǔ)。本文通過對葡108區(qū)塊進行地質(zhì)模型的建立然后綜合考慮利用地質(zhì)、測井、地震和生產(chǎn)動態(tài)等數(shù)據(jù)資料,從而開展了對葡108區(qū)塊地質(zhì)特征油藏構(gòu)造等再認識,從而弄清了窄小河道在砂體上的展布特征規(guī)律。然后在此認識的基礎(chǔ)上,綜合動態(tài)監(jiān)測等有用資料,結(jié)合油藏數(shù)值模擬技術(shù),開展了油藏剩余油分布特征的研究,從而弄清了各種類型剩余油在地下分布特點,提出有效挖潛措施,為達到提高水驅(qū)波及體積、改善油層水驅(qū)狀況目的。采用油藏精細數(shù)值模擬等技術(shù)、剩余油形成與分布描述等技術(shù)以及預(yù)測等在內(nèi)的技術(shù),完善開采不完善油田剩余油的挖潛研究以及治理方案,為解決特高含水期油田剩余油進一步挖潛提供了經(jīng)濟有效的方法和途徑,具有廣泛的適用性。
[Abstract]:The sedimentary environment of Pu108 block is delta front facies sedimentary. The reservoir sand body is mainly distributed in the subaqueous distributary channel microfacies sand body, and in the north and south direction it is the main strip distribution, and the continuity in the plane is relatively poor. When the oilfield enters the late stage of production and the oilfield enters the late stage of high water cut, the oilfield development will be affected by the distribution characteristics of sand body, and the remaining oil distribution of Pu108 block will be complicated and scattered, which restricts the development effect of oil field. Therefore, in oil field development, we compare and analyze the relationship between remaining oil distribution law, remaining oil reserves, spatial distribution, geological factors and injection-production conditions. The premise and foundation of improving oil displacement efficiency and crude oil recovery degree. In this paper, the geological model of Pu108 block is established and the geological data, such as geology, logging, seismic and production performance, are considered synthetically, so as to develop a new understanding of the geological characteristics of reservoir structure in block GU108. The distribution characteristics of narrow channel on sand body are clarified. Then, on the basis of this understanding, combining the useful data such as dynamic monitoring and reservoir numerical simulation technology, the distribution characteristics of remaining oil in reservoir are studied, and the distribution characteristics of various types of remaining oil are clarified. In order to increase the swept volume of water flooding and improve the water flooding condition of oil reservoir, the effective measures of tapping potential are put forward. Using techniques such as reservoir fine numerical simulation, residual oil formation and distribution description, prediction and so on, to improve the research and treatment of remaining oil in imperfect oil fields. It provides an economical and effective way to solve the remaining oil potential in the super high water cut oil field, and has wide applicability.
【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】：2017
【分類號】：TE327
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本文編號：2149621