层内自生 CO2吞吐机理数值模拟研究 |
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引用本文: | 何吉波,汤勇,杨付林,苏正远. 层内自生 CO2吞吐机理数值模拟研究[J]. 复杂油气藏, 2016, 0(1): 46-49. DOI: 10.16181/j.cnki.fzyqc.2016.01.010 |
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作者姓名: | 何吉波 汤勇 杨付林 苏正远 |
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作者单位: | 1. 西南石油大学油气藏地质及开发工程国家重点实验室,四川 成都,610500;2. 中国石化江苏油田分公司石油工程技术研究院,江苏 扬州,225009 |
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摘 要: | 层内自生CO2技术是一种新的增油方式。在所建立的真实油藏单井径向模型的基础上,通过数值模拟研究,得出层内自生CO2吞吐可以降低原油粘度、膨胀原油体积、抽提原油中的轻质组分;生气剂注入速度过快会形成生气剂溶液对原油的驱替,不利于吞吐的进行,而焖井时间越长,吞吐的效果越好。因此,在自生CO2吞吐过程中应适当降低生气剂注入速度和延长焖井时间。
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关 键 词: | 层内自生CO2 油藏 吞吐 数值模拟 |
Study on numerical simulation of in-situ generating CO2 stimulation mechanism |
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Abstract: | In-situ generating CO 2 technology is a new way to increase oil recovery .Based on the radial model of real reservoir single well ,numerical simulation results showed that the in -situ generating CO 2 stimulation can reduce the vis-cosity of crude oil and swell the volume of crude oil ,and extract light component of the crude oil;the slower the injected rate of generating gas chemical solution ,the longer the soak time ,the better the increased oil recovery is .Therefore the in-jected rate of the generating gas chemical solution should be reduced and the soak time should be prolonged in the process of in-situ generating CO 2 stimulation . |
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Keywords: | in-situ generating CO2 reservoir huff-n-puff numerical simulation |
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