致密油藏驱油剂优化实验研究
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摘要
随着储存在低渗透低孔隙储层中的非常觃油气资源致密油日益受到人们的关注,对其的实验研究也在逐渐加深。我国致密油资源的潜力很大,分布范围广泛。致密油是指储存于低渗透率介质中的原油,渗透率一般小于0.1 md。致密油已经在部分国家取得了商业性的开发,而我国致密油的开发处于起步阶段。因此,我们不能照搬其他国家致密油的开发经验,结合我国的具体情况分析幵采用相关的开发方式,这对我国致密油藏合理有效开采具有重大意义。以大庆油田和新疆高盐地区致密油藏为研究对象,利用现场产出的原油,进行了室内物理模拟实验,优选出适合工业生产的驱油剂体系。
Tight oil as unconventional oil and gas resource in low permeability and low porosity reservoirs is receiving increasing attention, so the experimental research on it is being deepened gradually. China's tight oil resources have great potential and wide distribution. Tight oil is a kind of crude oil stored in the low permeable medium with the permeability of less than 0.1 md. Tight oil has been developed commercially in some countries, but in China it is still in its infancy. Therefore, we cannot copy the experience of tight oil development in other countries, we should analyze the specific situation in China to adopt relevant development methods, which is of great significance for the rational and effective exploitation of tight oil reservoirs in China. In this paper, taking tight reservoirs in Daqing oilfield and high-salt area of Xinjiang as the research object, indoor physical simulation experiment on crude oil produced in the field was carried out, and the oil displacement agent system suitable for industrial production was optimized.
Tight oil as unconventional oil and gas resource in low permeability and low porosity reservoirs is receiving increasing attention, so the experimental research on it is being deepened gradually. China's tight oil resources have great potential and wide distribution. Tight oil is a kind of crude oil stored in the low permeable medium with the permeability of less than 0.1 md. Tight oil has been developed commercially in some countries, but in China it is still in its infancy. Therefore, we cannot copy the experience of tight oil development in other countries, we should analyze the specific situation in China to adopt relevant development methods, which is of great significance for the rational and effective exploitation of tight oil reservoirs in China. In this paper, taking tight reservoirs in Daqing oilfield and high-salt area of Xinjiang as the research object, indoor physical simulation experiment on crude oil produced in the field was carried out, and the oil displacement agent system suitable for industrial production was optimized.
引文
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[4]谷潇雨,蒲春生,黄海,黄飞飞,李悦静,刘杨,刘恒超.渗透率对致密砂岩储集层渗吸采油的微观影响机制[J].石油勘探与开发,2017,44(06):948-954.
[5]谢灵.致密油藏高效驱油体系优选实验研究[D].中国石油大学(北京),2016.
[6]于馥玮,苏航.表面活性剂作用下致密水湿砂岩的渗吸特征[J].当代化工, 2015, 44(06):1240-1243.