【摘要】：本文利用容量分析法、層析柱法分別測定了四種勝利石油磺酸鹽的含量及組分含量,用電位滴定法測定其平均當量,用1HNMR法對石油磺酸鹽的活性成分進行表征,通過對油水界面張力的測定,考察了四種石油磺酸鹽的界面活性。研究結(jié)果表明,石油磺酸鹽SAS-4活性成分的含量比其他三種石油磺酸鹽都高且有更多短的烷基側(cè)鏈;相同濃度下,石油磺酸鹽SAS-4降低界面張力的能力及乳化性能都優(yōu)于其他三種石油磺酸鹽,但仍達不到現(xiàn)場應(yīng)用要求。選擇石油磺酸鹽SAS-4與NaBO_2按1:5的比例復(fù)配,復(fù)配體系界面張力低于10-2 mPa.s且乳化性能明顯得到改善,優(yōu)選出0.1%石油磺酸鹽SAS-4和0.5%NaBO_2構(gòu)成驅(qū)油劑體系。物理模擬實驗表明,隨溫度的升高,采收率增加。當注入大段塞石油磺酸鹽體系時,不同注入時機的最終采收率基本相同,但驅(qū)油速度不同;而當石油磺酸鹽體系段塞較小時,先注石油磺酸鹽體系再轉(zhuǎn)注蒸汽會有更高的原油采收率。研究結(jié)果可為勝利油田表面活性劑輔助熱采提高稠油油藏采收率提供指導(dǎo)。
[Abstract]:In this paper, the content of four kinds of Shengli petroleum sulfonate and the content of the components were determined by the method of capacity analysis and column chromatography. The average equivalent of the four kinds of petroleum sulfonate was determined by potentiometric titration. The active component of the petroleum sulfonate was characterized by means of the 1HNMR method, and the oil-water interfacial tension was determined by using the method of 1HNMR. The interfacial activity of the four petroleum sulfonates was investigated. The results show that the content of the oil sulfonate SAS-4 active component is higher than that of the other three petroleum sulfonates and has more short alkyl side chains; at the same concentration, the capability and the emulsifying property of the petroleum sulfonate SAS-4 to reduce the interfacial tension force are superior to the other three petroleum sulfonates, but still can't meet the field application requirements. The combination of petroleum sulfonate SAS-4 and NaBO _ 2 in the ratio of 1: 5, the interfacial tension of the compound system is lower than 10-2 mPa.s and the emulsifying performance is obviously improved, and 0.1% of the petroleum sulfonate SAS-4 and 0.5% NaBO _ 2 are preferably used to form the oil-displacing agent system. The physical simulation experiment shows that the recovery ratio increases with the increase of the temperature. When the large section of the petroleum sulfonate system is injected, the final recovery ratio of the different injection timing is basically the same, but the oil displacement speed is different; and when the petroleum sulfonate system section plug is small, the oil recovery ratio of the petroleum sulfonate system is firstly injected, and the recovery ratio of the crude oil is higher. The results of the study can provide guidance for improving the recovery factor of the heavy oil reservoir by the auxiliary thermal recovery of the surface active agent in Shengli Oilfield.
【學(xué)位授予單位】：中國石油大學(xué)(華東)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE39

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