本文選題：洼38塊 + 蒸汽驅(qū)��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：洼38塊其構(gòu)造上位于遼河斷陷中央凸起的南部?jī)A沒帶的北端,該片區(qū)塊主要開發(fā)目的層屬于古近系東營(yíng)組三段油層。目前采用蒸汽驅(qū)開采方式,己進(jìn)入到開發(fā)中后期,存在主要問題是:地層能量嚴(yán)重不足,蒸汽驅(qū)吞吐開發(fā)指標(biāo)變差。為了進(jìn)一步提高小洼油田采收率,借鑒國(guó)內(nèi)外蒸汽驅(qū)成功經(jīng)驗(yàn),開展洼38塊蒸汽驅(qū)配套技術(shù)及外擴(kuò)方案研究。本文綜合運(yùn)用油藏工程,動(dòng)態(tài)分析、分析對(duì)比等方法,針對(duì)該區(qū)塊開發(fā)中存在的主要矛盾,開展蒸汽驅(qū)外擴(kuò)可行性研究。在洼38塊東三段油藏精細(xì)地質(zhì)研究基礎(chǔ)上,進(jìn)行了蒸汽驅(qū)先導(dǎo)效果評(píng)價(jià),開展了蒸汽驅(qū)外擴(kuò)試驗(yàn),在水平井開采、蒸汽驅(qū)提高采收率、改善稠油蒸汽的吞吐效果、注汽系統(tǒng)的燃料結(jié)構(gòu)調(diào)整等方面進(jìn)行研究,以提高油藏采收率、提高單井產(chǎn)量、提高開發(fā)效果、降低操作成本為重點(diǎn)進(jìn)行研究,以加強(qiáng)現(xiàn)場(chǎng)監(jiān)督和規(guī)范管理為手段,嘗試解決制約油田開發(fā)中的瓶頸技術(shù)問題。文中著重對(duì)蒸汽驅(qū)吞吐引效、高溫人工井壁防砂、高效舉升、蒸汽驅(qū)作業(yè)等相關(guān)蒸汽驅(qū)配套技術(shù)進(jìn)行研究,提出了實(shí)施高干度注汽、優(yōu)化注汽參數(shù)、回字型井網(wǎng)、停注控壓、高溫調(diào)堵、強(qiáng)化提液等綜合調(diào)控技術(shù),保證蒸汽驅(qū)效果,推進(jìn)外擴(kuò)方案的研究實(shí)施。通過本文對(duì)蒸汽驅(qū)配套技術(shù)的研究表明回字型井網(wǎng)能較好解決深層反九點(diǎn)井網(wǎng)存在的熱損失大,采注比低,地層壓力上漲,蒸汽驅(qū)難以擴(kuò)展等問題。
[Abstract]:Block WA 38 is structurally located at the northern end of the southern dip belt of the central uplift of Liaohe fault depression. The main development target layer of this block is the third member of the Dongying formation of Paleogene. At present, steam drive production has entered the middle and late stage of development. The main problems are that the formation energy is seriously insufficient and the development index of steam drive huff and puff becomes worse. In order to further improve the oil recovery of Xiaowa Oilfield and draw lessons from the successful experience of steam flooding at home and abroad, the matching technology and extension scheme of steam flooding in block WA 38 were studied. In this paper, reservoir engineering, dynamic analysis, analysis and comparison are used to study the feasibility of steam drive expansion in view of the main contradiction existing in the development of the block. On the basis of fine geological study of the third member reservoir in block WA 38, the pilot effect of steam drive was evaluated, and the expansion test of steam drive was carried out. In horizontal well production, steam flooding improved oil recovery and steam huff and puff effect of heavy oil. The fuel structure adjustment of steam injection system is studied in order to improve oil recovery, increase single well production, improve development effect, reduce operation cost, and strengthen field supervision and standard management. This paper tries to solve the bottleneck technical problem in oilfield development. In this paper, the relevant steam drive matching technologies, such as steam drive huff and puff efficiency, high temperature artificial wall sand control, high efficiency lifting, steam drive operation and so on, are studied, and the implementation of high dryness steam injection, optimization of steam injection parameters, annular well pattern, stop injection and control pressure are put forward. In order to ensure the effect of steam drive and promote the research and implementation of extraneous expansion scheme, comprehensive control techniques such as high temperature plugging control and liquid extraction are strengthened. Through the research on the matching technology of steam flooding, it is shown that the well pattern can solve the problems such as large heat loss, low injection ratio, rising formation pressure and difficult expansion of steam flooding.
【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)】：TE357.44

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相關(guān)期刊論文 前1條

1 劉其成,郭彥臣,劉志惠;遼河油區(qū)稠油熱采中儲(chǔ)層變化實(shí)驗(yàn)研究[J];特種油氣藏;1999年03期

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本文編號(hào)：1870438