ISSN 1673-8217 CN 41-1388/TE
主管:中国石油化工集团有限公司 主办:中国石油化工股份有限公司河南油田分公司
邓南涛, 段昕婷, 杨超, 张庆, 陈义国. 2015: 鄂尔多斯盆地南部延长组储层微观孔隙结构特征. 石油地质与工程, 29(05): 71-74+147.
引用本文: 邓南涛, 段昕婷, 杨超, 张庆, 陈义国. 2015: 鄂尔多斯盆地南部延长组储层微观孔隙结构特征. 石油地质与工程, 29(05): 71-74+147.
Deng Nantao, . 2015: Microscopic pore structure characteristics of Yanchang formation in south of Ordos basin. Petroleum Geology and Engineering, 29(05): 71-74+147.
Citation: Deng Nantao, . 2015: Microscopic pore structure characteristics of Yanchang formation in south of Ordos basin. Petroleum Geology and Engineering, 29(05): 71-74+147.

鄂尔多斯盆地南部延长组储层微观孔隙结构特征

Microscopic pore structure characteristics of Yanchang formation in south of Ordos basin

  • 摘要: 统计与分析鄂尔多斯盆地南部延长组84口井具有代表性的139块样品的典型孔隙结构特征参数,探讨其与物性及驱油效率的关系。结果表明鄂尔多斯盆地南部延长组孔隙结构参数中的排驱压力、中值压力与物性呈负相关性,中值半径、喉道直径均值、分选系数与物性呈正相关性,孔隙结构系数、均质系数与物性基本不具有相关性;驱油效率与孔隙结构参数之间存在一定的相关关系,总体而言,孔隙结构对驱油效率影响的机理较复杂,非简单的线性关系。

     

    Abstract: Through statistics and analysis of typical pore structure characteristic parameters from84 wells of Yanchang formation in the south of Ordos basin,the relationship between physical properties and oil displacement efficiency has been discussed.The results showed that the expulsion pressure and median pressure has negative correlation with the physical properties,while the median radius,average throat diameter and sorting coefficient has positive correlation with the physical properties.The pore structure coefficient,homogeneous coefficient and physical properties have no correlation,while there is a certain correlation between oil displacement efficiency and pore structure parameters.Generally speaking,the effect of pore structure on oil displacement mechanism is more complex,rather than the simple linear relationship.

     

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