CO_2辅助蒸汽驱驱油效率实验研究
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摘要
稠油开发是世界性的大难题。在中国能源紧缺的今天,稠油资源无疑是中国不可忽视的能源之一。传统的稠油开采方法采用的是单一注蒸汽的热力开采方式,但单一的注蒸汽会带来很多的问题,如汽窜、产量递减过快等问题。随着稠油开采技术的进步,发现在蒸汽中加入CO_2会改善注汽效果。本文进行了CO_2辅助蒸汽驱驱油进行了室内研究,通过改变CO_2与蒸汽的注入比、注入段塞的大小、注入速度来确定最优的注入参数。
Heavy oil is an unconventional oil resource; development of the heavy oil is of great significance to ease China's energy supply. Conventional heavy oil recovery method is the single way of thermal recovery by steam injection, but the single steam injection can cause a lot of problems, such as channeling, rapid production decline, and so on. With the progress of heavy oil recovery technology, it's found that adding CO_2 in the steam can improve the steam injection effect. In this paper, CO_2 auxiliary steam flooding was studied by changing the ratio of CO_2 and steam, injection plug and injection rate; the optimal injection parameters were determined.
Heavy oil is an unconventional oil resource; development of the heavy oil is of great significance to ease China's energy supply. Conventional heavy oil recovery method is the single way of thermal recovery by steam injection, but the single steam injection can cause a lot of problems, such as channeling, rapid production decline, and so on. With the progress of heavy oil recovery technology, it's found that adding CO_2 in the steam can improve the steam injection effect. In this paper, CO_2 auxiliary steam flooding was studied by changing the ratio of CO_2 and steam, injection plug and injection rate; the optimal injection parameters were determined.
引文
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[2]董航.稠油油藏CO2辅助蒸汽吞吐的实验研究[D].东北石油大学,2015.
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[4]檀德库.用于蒸汽驱油藏的高温产CO2气复合驱油剂[J].油田化学,2008(03):272-276.
[5]刘尚奇,杨双虎,高永荣,沈德煌,鲍君刚.CO2辅助直井与水平井组合蒸汽驱技术研究[J].石油学报,2008(03):414-417+422.
[6]付美龙,张鼎业.杜84块超稠油油藏蒸汽+CO2+助剂吞吐物理模拟实验研究[J].油田化学,2006(02):145-149.