高凝油及其组分与表面活性剂作用关系

发布时间：2018-09-12 09:44

【摘要】：针对辽河油田沈84-安12块高凝油开展原油组分与表面活性剂的作用关系研究,提出能降低原油界面张力达到超低的表面活性剂筛选新方法。采用柱色谱法分离原油组分得到饱和分、芳香分、胶质和沥青质,对组分与常用的阴离子、非离子和两性3类表面活性剂的界面张力进行测定。结果表明:胶质对表面活性剂降低原油界面张力影响较大,沥青质次之,饱和分与芳香分的影响虽较弱,但原油中饱和分含量高,仍需考虑饱和分的影响;优选出的甜菜碱-2表面活性剂可使原油界面张力降低到10-3m N/m数量级。
[Abstract]:Based on the study of the relationship between the composition of crude oil and surfactant in high condensate oil of Shen84-an 12 block in Liaohe Oilfield, a new method for screening surfactants is proposed, which can reduce the interfacial tension of crude oil to an ultra-low level. The saturated, aromatic, colloidal and asphaltene components of crude oil were separated by column chromatography. The interfacial tension of the components with anionic, non-ionic and amphoteric surfactants was determined. The results show that the resin has a great influence on the surface active agent to reduce the interfacial tension of crude oil, while asphaltene is the second, and the effect of saturation and aromatics is weak, but the content of saturated fraction in crude oil is high, so the effect of saturation fraction should be considered. The optimized betaine-2 surfactant can reduce the interfacial tension of crude oil to the order of 10-3m N / m.
【作者单位】：中国科学院渗流流体力学研究所;中国科学院大学;中国石油勘探开发研究院廊坊分院;中石油机关服务中心北京华油科隆开发公司;
【基金】：国家科技重大专项“砾岩油藏化学驱渗流规律驱油机理研究”(2016ZX05010004-006)
【分类号】：TE357.46

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