基于多因素分析提高采收率驱替方式优选方法的研究

doi:10.13809/j.cnki.cn32-1825/te.2022.05.012

Abstract

Abstract:

In order to ensure that the best oil recovery and displacement method of the new target block of the oilfield could be selected in the process of tertiary oil recovery, based on the application of tertiary oil displacement method in typical blocks at home and abroad, 23 reservoir parameters have been studied as the key parameters that affect the displacement mode, and the fuzzy evaluation method are used in the process. And then, the correlation between the target area and the test area is calculated by the improved Deng’s correlation method, so as to predict the recovery ratio of the target area. The study of a new block of some oilfield in China verify that the best displacement mode is fire flooding. The proposed proposed method provides a calculation basis for the optimal displacement method of the new block.

Key words: tertiary oil recovery, displacement method, optimization method, rapid analogy, multifactor

CLC Number:

TE327

WANG Tingting,WU Guibin,CHEN Jianling,SUN Qinjiang,WANG Zhengbo,FENG Xiaohan,ZHAO Wanchun. Optimization of enhanced oil recovery displacement methods based on multifactor analysis[J].Petroleum Reservoir Evaluation and Development, 2022, 12(5): 803-808.

Figures/Tables 6

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References 21

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参数名称	取值范围	参数类别
油藏类型		地质参数
岩石特征		地质参数
油藏埋深（m）	0~10 000	地质参数
油层压力（MPa）		地质参数
油层温度（℃）	0~200	地质参数
平均单层有效厚度（m）	0~250	地质参数
净毛比	0~1	地质参数
孔隙度（%）	0~100	地质参数
空气渗透率（10^-3 μm²）	0~30 000	地质参数
含油饱和度（%）	0~100	地质参数
渗透率变异系数	0~1	地质参数
底水影响		地质参数
边水影响		地质参数
裂缝/溶洞		地质参数
地层倾角		地质参数
气源		地质参数
上下隔层及管窜封闭性		地质参数
地层倾角		地质参数
单储系数[10⁴ t/（km²·m）]	0~150	地质参数
地层原油黏度（mPa·s）	0~100 000	流体参数
原油密度（g/cm³）	0.5~1.0	流体参数
原油酸值（mg·KOH/g）	0~40	流体参数
地层水矿化度（mg/L）	500~300 000	流体参数
二价离子含量（mg/L）	0~5 000	流体参数

Optimization of enhanced oil recovery displacement methods based on multifactor analysis

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