本文選題：復(fù)雜斷塊油藏 + 高含水期��； 參考：《中國石油大學(xué)(華東)》2015年碩士論文

【摘要】：復(fù)雜斷塊油藏與常規(guī)油藏相比,具有特有的地質(zhì)和開發(fā)特點:含油面積小、斷層發(fā)育、形狀不規(guī)則、油水關(guān)系復(fù)雜、開發(fā)難度較大等。目前我國大部分油田均已進(jìn)入高含水期,復(fù)雜斷塊油藏剩余油挖潛難度隨之增大,因此,根據(jù)復(fù)雜斷塊油藏的構(gòu)造特征和剩余油富集規(guī)律,開展復(fù)雜斷塊油藏分區(qū)井網(wǎng)調(diào)控技術(shù)方法研究,對提高該類油藏采收率具有重要意義。本文通過調(diào)研整理、統(tǒng)計分析,總結(jié)了復(fù)雜斷塊油藏典型分類,綜合不同類型復(fù)雜斷塊油藏構(gòu)造特征、斷層分布和滲流特征確定了油藏I級分區(qū)方法。結(jié)合高含水期剩余油富集規(guī)律和規(guī)模,確定了油藏Ⅱ級分區(qū)表征指標(biāo)和政策界限。在分區(qū)劃分的基礎(chǔ)上,針對不同類型復(fù)雜斷塊油藏開展了不同分區(qū)井網(wǎng)優(yōu)化研究。結(jié)合不同分區(qū)井網(wǎng)調(diào)控原則,開展了不同類型斷塊油藏綜合井網(wǎng)調(diào)控方法研究。應(yīng)用油藏數(shù)值模擬技術(shù),通過水驅(qū)流線和壓力梯度分布對不同分區(qū)高含水期剩余油分布規(guī)律以及富集成因進(jìn)行了分析。應(yīng)用油藏工程方法,建立了單井加密經(jīng)濟政策界限,建立了扇形開啟型斷塊油藏單井加密應(yīng)用圖版。針對不同類型斷塊油藏,開展了不同分區(qū)采油井加密方案優(yōu)選和油水井對應(yīng)優(yōu)化研究。從注采井?dāng)?shù)、井型、井位等方面,形成了不同類型斷塊油藏開發(fā)初期井網(wǎng)部署最優(yōu)方案和高含水期綜合井網(wǎng)調(diào)控方法。以均衡驅(qū)替為優(yōu)化目標(biāo),應(yīng)用油藏工程方法,編制了一注兩采典型井組高含水期注采井距優(yōu)化程序,分析了地層傾角、儲層平均滲透率和油井含水率等因素對合理注采井距的影響。
[Abstract]:Compared with conventional reservoirs, complex fault-block reservoirs have special geological and development characteristics, such as small oil-bearing area, fault development, irregular shape, complex oil-water relationship, and great difficulty in development, etc. At present, most oil fields in China have entered high water-cut period, and the difficulty of tapping remaining oil potential in complex fault-block reservoirs has increased. Therefore, according to the structural characteristics of complex fault-block reservoirs and the law of remaining oil enrichment, It is of great significance to improve the oil recovery of complex fault block reservoirs by studying the technique of well pattern control in complex fault block reservoirs. In this paper, the typical classification of complex fault-block reservoirs is summarized through investigation and arrangement, and the structural characteristics, fault distribution and percolation characteristics of different types of complex fault-block reservoirs are summarized. Combined with the enrichment law and scale of remaining oil in high water cut period, the index and policy limit of class 鈪，

本文編號：1792995