【摘要】：遼河油田地質(zhì)構(gòu)造情況復(fù)雜,主要以稠油生產(chǎn)為主,稠油油藏儲層巖石結(jié)構(gòu)疏松,壓實程度與膠結(jié)程度低,原油粘度大,攜砂能力強,在熱采過程中極易出砂,并且油井吞吐輪次高,地層虧空嚴(yán)重,隨著油井吞吐輪次和采出程度的增加,地層虧空嚴(yán)重,井下技術(shù)狀況變差,套變井增多,篩管變形失效,加之汽竄、出水等因素對出砂的影響,油層砂巖構(gòu)造骨架松散,直接導(dǎo)致出砂情況頻繁及形式多樣化,因此油井出砂問題一直是制約油田正常生產(chǎn)的一個突出問題。通過對近些年油井開發(fā)過程中出砂情況的現(xiàn)場分析、跟蹤研究,結(jié)合國內(nèi)外油田行業(yè)防砂技術(shù)與現(xiàn)場實際情況,目前已研制開發(fā)出機械防砂、化學(xué)固砂防砂排砂以及其它綜合方式防砂等三十余種油、氣、水井配套防砂工藝技術(shù),基本上有效緩解了遼河油田的出砂防砂問題。但是隨著油田生產(chǎn)的開發(fā)模式轉(zhuǎn)換,開采方式如SAGD、蒸汽驅(qū)、水平井的應(yīng)用及海上油田的開發(fā)等對常規(guī)的防砂技術(shù)提出了新的和更高的要求。國外各大石油公司對此的研究比較早,技術(shù)也比較先進(jìn),國內(nèi)石油公司也有相關(guān)技術(shù)的研究與應(yīng)用,通過對國內(nèi)外可用于礫石充填的新型低密度人工砂和分層防砂、分層控制技術(shù)的研究,進(jìn)而結(jié)合遼河油田出砂實際情況及國內(nèi)外比較先進(jìn)的防砂材料及防砂技術(shù),為下一步防砂技術(shù)的更新和新技術(shù)的研究奠定基礎(chǔ)。
[Abstract]:Liaohe Oilfield is characterized by complex geological structure, mainly heavy oil production, loose rock structure in heavy oil reservoir, low compaction and cementation degree, high viscosity of crude oil, strong sand carrying capacity, and easy sand production during thermal recovery. And the oil wells have high times of huff and puff and serious formation deficit. With the increase of the oil well huff and puff cycles and the degree of recovery, the formation deficit is serious, the downhole technical condition becomes worse, the number of casing variation wells increases, the sieve tube deformation fails, and the steam channeling is added. Due to the influence of water and other factors on sand production, the structure framework of sandstone is loose, which directly leads to frequent sand production and diversified forms. Therefore, sand production in oil wells has always been a prominent problem restricting the normal production of oil fields. Based on the field analysis and follow-up study of sand production during oil well development in recent years, combined with sand control technology and actual situation of oil field industry at home and abroad, mechanical sand control has been developed at present. More than 30 kinds of oil, gas and well sand control technology, such as chemical sand consolidation, sand control and other comprehensive sand control methods, have basically effectively alleviated the sand production and sand control problem in Liaohe Oilfield. However, with the transformation of oilfield production mode, new and higher requirements are put forward for conventional sand control techniques such as SAGD, steam drive, horizontal well application and offshore oilfield development. The major oil companies abroad have studied this problem earlier and advanced in technology. Domestic oil companies also have the research and application of related technologies. Through the research and application of new low density artificial sand and stratified sand control which can be used in gravel filling at home and abroad, The study of stratified control technology, combined with the actual situation of sand production in Liaohe Oilfield and the advanced sand control materials and sand control technology at home and abroad, will lay a foundation for the renewal of sand control technology and the study of new technology in the next step.
【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】：2015
【分類號】：TE358.1

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本文編號：2219748