蒸汽-空气复合驱提高稠油采收率研究

doi:10.11885/j.issn.1674-5086.2015.09.22.01

西南石油大学学报(自然科学版) ›› 2017, Vol. 39 ›› Issue (2): 111-117.DOI: 10.11885/j.issn.1674-5086.2015.09.22.01

蒸汽-空气复合驱提高稠油采收率研究

杨戬¹, 李相方¹, 阎逸群¹, 张保瑞², 张晓林³

1. 中国石油大学(北京)石油工程学院, 北京昌平 102249;
2. 中国特种设备安全与节能促进会, 北京朝阳 100013;
3. 中海油深圳分公司, 广东深圳 510240

收稿日期:2015-09-22 出版日期:2017-04-01 发布日期:2017-04-01
作者简介:杨戬,1989年生,男,汉族,山东东营人,博士研究生,主要从事油气田开发方面的研究工作。E-mail:yangjian315@126.com;李相方,1955年生,男,汉族,山东聊城人,教授,博士生导师,主要从事油气田开发及安全工程方面的研究。E-mail:lixf2013@vip.163.com;阎逸群,1991年生,女,汉族,北京人,硕士,主要从事油气田开发方面的工作。E-mail:yanyiqun1991@163.com;张保瑞,1987年生,男,汉族,山东聊城人,硕士研究生,主要从事油气田开发方面的研究。E-mail:zbr7@163.com;张晓林,1987年生,男,汉族,湖北武穴人,助理工程师,主要从事油藏工程及数值模拟方面的研究工作。E-mail:841834495@qq.com
基金资助:
国家自然科学基金（50974128）

Research on Enhancing Heavy Oil Recovery by Steam-Air Flooding

YANG Jian¹, LI Xiangfang¹, YAN Yiqun¹, ZHANG Baorui², ZHANG Xiaolin³

1. College of Petroleum Engineering, China University of Petroleum(Beijing), Changping, Beijing 102249, China;
2. China Promotion Association for Special Equipment Safety and Energy Saving, Chaoyang, Beijing 100013, China;
3. Shenzhen Branch, CNOOC, Shenzhen, Guangdong 510240, China

Received:2015-09-22 Online:2017-04-01 Published:2017-04-01
Contact: 杨戬,E-mail:yangjian315@126.com

摘要/Abstract

摘要：

为进一步提高稠油热采的采出程度，开展了蒸汽空气复合驱的研究。主要从室内实验及数值模拟研究了蒸汽空气复合驱的最优空气与蒸汽的质量比。通过对不同空气与蒸汽质量比的室内实验研究，可以看出随着空气与蒸汽的质量比升高，采出程度先上升后下降。当空气与蒸汽的质量比为2：32时，蒸汽空气复合驱的采出程度最高，为68.67%；此时填砂管出口端的温度与蒸汽驱相差不大。当空气与蒸汽的质量比大于3：32时，蒸汽空气复合驱的采出程度低于蒸汽驱，此时填砂管出口端的温度远低于蒸汽驱的温度。通过CMG数值模拟对辽河油田X区块的蒸汽空气复合驱的研究，得到了与室内实验相同的趋势。由于室内实验与现场的差异性，其优化的数值有所差异。通过辽河油田X区块的现场试验，蒸汽空气复合驱空气与蒸汽的质量比为1：16.1。该现场试验区块中原油日产量上升，原油含水率下降，有力地验证了室内实验及数值模拟结果的正确性。

关键词: 蒸汽空气复合驱, 采出程度, 质量比, 优化, 数值模拟, 现场试验

Abstract:

In order to enhance the recovery of heavy oil, we carry out in-door experiment and numerical simulation of steam-air flooding. In-door experiment with different mass ratios of air and steam revealed that heavy oil recovery increased first then decreased as the mass ratio of air and steam increased. When the mass ratio of air and steam was 2:32, the oil recovery was the highest, which was up to 68.67%, and temperature at the end of the sand packed tube was almost the same as it was with steam flooding. When the mass ratio of air and steam exceeded 3:32, the oil recovery of steam-air flooding was less than that of steam flooding, and the temperature at the end of the sand packed tube was much lower than that with steam flooding. Numerical simulation of X Block in Liaohe Oilfield by CMG produced similar results as in in-door experiment, although there existed differences in the results due to differences between in-door experiment and the oil field simulation. Through the field pilot in X Block of Liaohe Oilfield, we found that when the mass ratio of air and steam is 1:16.1, oil production rate increased while the water cut decreased with steam-air flooding which proves the accuracy of the in-door experiment and numerical simulation results.

Key words: steam-air flooding, recovery factor, mass ratio, optimization, numerical simulation, field plot

中图分类号:

TE345

杨戬, 李相方, 阎逸群, 张保瑞, 张晓林. 蒸汽-空气复合驱提高稠油采收率研究[J]. 西南石油大学学报(自然科学版), 2017, 39(2): 111-117.

YANG Jian, LI Xiangfang, YAN Yiqun, ZHANG Baorui, ZHANG Xiaolin. Research on Enhancing Heavy Oil Recovery by Steam-Air Flooding[J]. 西南石油大学学报(自然科学版), 2017, 39(2): 111-117.

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蒸汽-空气复合驱提高稠油采收率研究

Research on Enhancing Heavy Oil Recovery by Steam-Air Flooding

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