【摘要】：稠油作為一種非常規(guī)原油資源對(duì)我國(guó)經(jīng)濟(jì)的發(fā)展起著至關(guān)重要的作用,現(xiàn)階段水平井注蒸汽開采是我國(guó)稠油開采的重要方式,其開采效果很大程度上取決于井底的蒸汽品質(zhì),以及蒸汽在油層中的擴(kuò)散情況。因而對(duì)蒸汽在水平井流動(dòng)和傳熱問題進(jìn)行研究具有重大實(shí)際意義。在本文的研究中,建立了蒸汽在豎直井筒流動(dòng)傳熱模型,并用數(shù)值方法進(jìn)行求解,編制了計(jì)算程序,得到蒸汽熱力參數(shù)沿井筒的分布規(guī)律,并進(jìn)行了注汽參數(shù)敏感性分析和注汽時(shí)間對(duì)井底蒸汽參數(shù)影響分析。在考慮注汽篩管徑向分流的基礎(chǔ)上,建立了蒸汽在水平井筒內(nèi)的流動(dòng)傳熱模型,模型中考慮了注汽孔引起的孔眼摩阻損失,結(jié)合儲(chǔ)層物性與蒸汽壓力確定注汽孔泄流大小。對(duì)模型求解得到水平井筒蒸汽參數(shù)分布,發(fā)現(xiàn)提高注汽速率和干度可以有效提高水平井趾部蒸汽干度。研究發(fā)現(xiàn)現(xiàn)有管柱存在蒸汽分配不均,進(jìn)而提出了注汽管柱的優(yōu)化方法,優(yōu)化了注汽篩管的開孔密度,實(shí)現(xiàn)水平井底蒸汽等質(zhì)量分配。
[Abstract]:As a kind of unconventional crude oil resource, heavy oil plays a vital role in the development of our economy. At present, horizontal well steam injection production is an important way of heavy oil production in China, and its recovery effect largely depends on the steam quality at the bottom of the well. And the diffusion of steam in the reservoir. Therefore, it is of great practical significance to study the flow and heat transfer of steam in horizontal wells. In this paper, the heat transfer model of steam flow in vertical shaft is established, and the numerical method is used to solve it. The calculation program is compiled, and the distribution law of steam thermodynamic parameters along the shaft is obtained. The sensitivity of steam injection parameters and the effect of steam injection time on bottom steam parameters are analyzed. On the basis of considering radial distribution of steam injection sieve pipe, the flow heat transfer model of steam in horizontal well tube is established. The pore friction loss caused by steam injection hole is considered in the model, and the leakage size of steam injection hole is determined by combining reservoir physical property with steam pressure. The distribution of steam parameters in horizontal wellbore is obtained by solving the model. It is found that increasing steam injection rate and dryness can effectively increase the steam dryness of toe in horizontal well. It is found that the steam distribution is uneven in the existing pipe string, and then the optimization method of steam injection string is put forward, the open hole density of steam injection sieve pipe is optimized, and the mass distribution of steam at the bottom of horizontal well is realized.
【學(xué)位授予單位】：中國(guó)石油大學(xué)(華東)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE357.44

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 趙麗莎;吳小川;易晨曦;王婉青;;稠油開采技術(shù)現(xiàn)狀及展望[J];遼寧化工;2013年04期

2 高云松;付志遠(yuǎn);丁亮亮;羅玉合;羅雷雨;;稠油空心桿電加熱井井筒溫度場(chǎng)數(shù)值模擬[J];油氣田地面工程;2010年05期

3 王學(xué)忠;;稠油開采技術(shù)進(jìn)展[J];當(dāng)代石油石化;2010年01期

4 李力行;戰(zhàn)永平;付春麗;;稠油開采方法綜述[J];硅谷;2008年12期

5 高永海;孫寶江;王志遠(yuǎn);曹式敬;宋林松;程海清;;深水鉆探井筒溫度場(chǎng)的計(jì)算與分析[J];中國(guó)石油大學(xué)學(xué)報(bào)(自然科學(xué)版);2008年02期

6 陳德民;周金應(yīng);李治平;谷麗冰;董志剛;;稠油油藏水平井熱采吸汽能力模型[J];西南石油大學(xué)學(xué)報(bào);2007年04期

7 倪學(xué)鋒,程林松;水平井蒸汽吞吐熱采過程中水平段加熱范圍計(jì)算模型[J];石油勘探與開發(fā);2005年05期

8 于連東;世界稠油資源的分布及其開采技術(shù)的現(xiàn)狀與展望[J];特種油氣藏;2001年02期

9 楊德偉,黃善波,馬冬嵐,趙業(yè)衛(wèi),周洪娟;注蒸汽井井筒兩相流流動(dòng)模型的選擇[J];石油大學(xué)學(xué)報(bào)(自然科學(xué)版);1999年02期

10 趙剛,楊洪,俞曉林;水平井熱力采油過程中的傳熱傳質(zhì)分析[J];石油勘探與開發(fā);1998年04期

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本文編號(hào)：2251525