张菊香,刘庆森,张宽
Zhang Juxiang; Liu Qingsen & Zhang Kuan ;(Institute of Exploration & Development;

• 1:大庆石油管理局勘探开发研究院
• 2:大庆石油管理局勘探开发研究院
• 3:大庆石油管理局勘探开发研究院

摘要(Abstract)：

从大庆原油特性出发,进行了细管模型二氧化碳驱油实验,二氧化碳与原油接触油相体积测定实验及泡点压力测定实验。通过实验,得到了二氧化碳驱油的采收率与驱替压力关系曲线,原油中二氧化碳含量与泡点压力关系曲线,二氧化碳与大庆原油接触的最低混相压力等资料。从所得的资料看出,二氧化碳与大庆原油的最低混相压力超过了大庆长垣各油田原始地层压力一倍以上。这一结果提示人们,在没有降低混相压力的措施之前,大庆油田不宜进行二氧化碳混相驱油。
Based on the properties of Daqing crude oil, experiments are made on oil-displacement by CO2 in the thin tube model, oil phase volume determination when contacted with CO2 , and determination of the bubble point pressure. Thro ugh the experiments, the relationship curve between oil recovery and displaceme nt pressure by CO2 flooding, the relationship curve between CO2 content in crude oil and bubble point pressure, and the lowest miscible pressure of the contact of CO2 with Daqing crude oil have been gained. These data show that the lowest miscible pressure of CO2 with Daqing crude oil is over two times that of the initial formation pressure in the oil fields in Daqing Placanticline. This result implies that CO2 miscible displacement is not suitable in Daqing Oil Field with out any measures for reducing the miscible pressure.

关键词(KeyWords)：

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 张菊香,刘庆森,张宽
Zhang Juxiang; Liu Qingsen & Zhang Kuan ;(Institute of Exploration & Development;

DOI: 10.19597/j.issn.1000-3754.1988.03.007

参考文献(References)：

• [1] Holm, L.W., Josendal, ,V.A.: Mechanisms of Oil Displacemet by Carbon Pioxide. J.P.T. Des. 1974.
• [2] yellig, W.F., Metcaefe, R.S.: Determination and Drediction of CO_2 Minimun Miscibility Pressures. J.P.T Jan. 1980, V01.32, No.1, P160—168.
• [3] FredI., Stalkup, Jr: Miscible Displacement S.P.E, 1983. P17—30.