【摘要】：油井堵水己經(jīng)成為油田穩(wěn)產(chǎn)增產(chǎn)、提高采收率的重要措施,而堵水劑的強度與選擇性是堵水成功的關(guān)鍵。針對油藏堵水成功率低,選擇性差的問題,本文提出一種高效的選擇性堵水劑設(shè)計,將油溶性樹脂與凝膠型堵水劑進行復(fù)配,通過油溶性樹脂與凝膠型堵水劑的雙重封堵,增加了油溶性樹脂選擇性堵水劑的強度與選擇性,最終起到提高原油采收率的作用。本文選取有機樹脂與改性后的瀝青混合加工,得到油溶性樹脂,并對油溶性樹脂進行了性能評價。從油溶性樹脂的油溶性、耐酸性、耐鹽性和降解性能等方面考慮,油溶性樹脂都是一種極佳的堵水劑。凝膠型堵水劑主要由陽離子聚丙烯酰胺、酚醛樹脂交聯(lián)劑和調(diào)節(jié)劑三種組分組成,凝膠型堵水劑不但起到懸浮油溶性樹脂顆粒的作用,還具較好的堵水效果。優(yōu)選出油溶性樹脂選擇性堵水劑的配方,通過對油溶性樹脂選擇性堵水劑進行穩(wěn)定性、耐沖刷性及自身的解堵性實驗,表明油溶性樹脂選擇性堵水劑具有較好穩(wěn)定性能、耐沖刷性能及自身解堵性能。通過采用巖心封堵模擬實驗,研究了油溶性樹脂選擇性堵水劑的流變性能和選擇封堵性能。實驗結(jié)果表明,油溶性樹脂選擇性堵水劑具有高效的封堵與選擇效果。
[Abstract]:Water shutoff has become an important measure to increase production and increase oil recovery in oil fields, and the strength and selectivity of water shutoff agents are the key to the success of water shutoff. In view of the problems of low success rate and poor selectivity of water shutoff in reservoir, this paper presents an efficient design of selective water shutoff agent, which combines oil-soluble resin and gel water plugging agent, and through the dual plugging of oil-soluble resin and gel water plugging agent. The strength and selectivity of oil-soluble resin selective water plugging agent were increased, and the oil recovery factor was improved. In this paper, oil soluble resin was obtained by mixed processing of organic resin and modified asphalt, and the properties of oil soluble resin were evaluated. Considering the oil solubility, acid resistance, salt resistance and degradation performance of oil soluble resin, oil soluble resin is an excellent water plugging agent. The gel-type water shutoff agent is mainly composed of three components: cationic polyacrylamide, phenolic resin crosslinking agent and regulator. The gel water shutoff agent not only plays the role of suspended oil-soluble resin particles, but also has a better water shutoff effect. The formula of oil soluble resin selective water shutoff agent was selected, and the stability, erosion resistance and self plugging ability of oil soluble resin selective water shutoff agent were tested. The results showed that oil soluble resin selective water shutoff agent had good stability. Erosion resistance and self-removal performance. The rheological property and selective plugging performance of oil soluble resin selective water plugging agent were studied by core plugging simulation experiment. The experimental results show that the oil-soluble resin selective water plugging agent has high efficiency in plugging and selection.
【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】：TE358.3

【共引文獻】

相關(guān)期刊論文 前2條

1 王鳳剛;趙鳳蘭;侯吉瑞;曹淑君;蘇偉;;調(diào)堵結(jié)合技術(shù)可行性研究及參數(shù)優(yōu)化[J];科學(xué)技術(shù)與工程;2014年26期

2 楊承偉;夏凌燕;侯吉瑞;尹相文;;淀粉接枝共聚物在非均質(zhì)模型中的調(diào)剖性能[J];石油地質(zhì)與工程;2012年05期

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本文編號：2390402