本文關鍵詞：新型高效驅(qū)油復合體系的研究與應用　出處：《東北石油大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 稠油 石油磺酸鹽 陰離子表面活性劑 采收率

【摘要】：本論文通過應用遼河油田在用磺酸鹽表面活性劑,復配篩選陰離子表面活性劑,加入提高抗鹽性能的無機聚合物,研究出一種遼河歡西油田稠油驅(qū)油用表面活性劑復配體系,經(jīng)過優(yōu)化現(xiàn)場施工工藝,取得了較好的驅(qū)油效果。通過對各類助劑與石油磺酸鹽復配后相關性能研究發(fā)現(xiàn),在復配體系中陰離子表面活性劑AOS能夠有效地提高了石油磺酸鹽的界面活性,短鏈陰離子表面活性劑增強了磺酸鹽體系的乳化特征,無機聚合物能夠有效提高表面活性體系的抗鹽性能。通過石油磺酸鹽復配體系的性能研究,發(fā)現(xiàn)復配體系在適用油藏中具有高界面活性、良好的耐鹽性能。管式模型中可以降低注汽壓力0.5-2.8MPa,提高錦45塊高粘度稠油驅(qū)替10%以上,提高低粘度稠油驅(qū)替效率15%以上。通過注入方式和注入時機的優(yōu)化研究發(fā)現(xiàn),石油磺酸鹽復配體系在注汽初始階段注入比在注汽中期和后期注入改善注汽壓力的效果好。同時石油磺酸鹽復配體系注入量相同的情況下,其以多段塞伴蒸汽注入的方式提高采收率效果最好,確定了高粘度稠油油藏熱采技術現(xiàn)場應用石油磺酸鹽復配體系應采用“前置液+多段塞伴蒸汽注入”注入方式。對錦45塊不同稠油油藏在熱采過程注入本文研制的石油磺酸鹽復配體系可有效提高油井生產(chǎn)參數(shù)和產(chǎn)油情況,增油效果顯著。通過對石油磺酸鹽復配體系的配方篩選和性能研究以及現(xiàn)場應用試驗,形成一套完整的石油磺酸鹽改善不同稠油熱采油藏的開發(fā)效果的優(yōu)化技術。
[Abstract]:In this paper, the application of sulfonate surfactants in Liaohe Oilfield, the selection of anionic surfactants, the addition of inorganic polymers to improve salt resistance. A kind of surfactant compound system for heavy oil flooding in Liaohehuanxi Oilfield was developed, and the field construction technology was optimized. Good oil displacement effect has been obtained. Through the research on the correlation performance of various kinds of additives and petroleum sulfonate. In the mixed system, the anionic surfactant AOS can effectively improve the interfacial activity of petroleum sulfonate, and the short-chain anionic surfactant enhances the emulsification characteristics of the sulfonate system. Inorganic polymers can effectively improve the salt resistance of the surface active system. Through the study of the performance of petroleum sulfonate complex system, it is found that the complex system has high interfacial activity in the suitable reservoir. The pipe model can reduce the steam injection pressure of 0.5-2.8 MPa and improve the displacement of heavy oil with high viscosity in block Jin45 by more than 10%. The displacement efficiency of low viscosity heavy oil is improved by more than 15%. The injection of petroleum sulfonate complex system in the initial stage of steam injection is better than that in the middle and late stage of steam injection. At the same time, the injection rate of petroleum sulfonate complex system is the same. It is the best way to improve oil recovery by multi-slug and steam injection. It is determined that the application of petroleum sulfonate complex system in the field application of thermal recovery technology in high viscosity heavy oil reservoir should be "pre-liquid multi-stage plug with steam injection". Injection mode. Injection of petroleum sulfonate compound system developed in this paper into different heavy oil reservoirs of block Jin 45 in thermal recovery process can effectively improve the production parameters and production conditions of oil wells. The oil increasing effect is remarkable. The formula screening and performance study of petroleum sulfonate compound system and field application test are carried out. To form a complete set of petroleum sulfonates to improve the thermal recovery of different heavy oil reservoir development efficiency optimization technology.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE357.46

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本文編號：1433880