摘要
研究延安气田YQ井区典型致密岩心样品的微观孔隙结构特征和渗流规律。通过砂岩样品充注模拟实验发现:砂岩岩心孔隙半径均值、喉道半径均值与渗透率之间无明显的相关性;孔喉半径与渗透率之间有明显的相关性;含气饱和度与喉道半径之间有较好的相关性。
The microscopic pore structure characteristics and seepage rules of typical tight sandstone core samples in YQ well area of Yan′an Gas field were studied.The charging experiment results show that there is no significant correlation between the mean of pore radius and throat radius of sandstone core and the permeability rate.However,there is obvious correlation between pore throat radius mean and the permeability rate and a good correlation between gas saturation and throat radius mean.
作者
唐明菊
宋珈萱
王成龙
李玉蓉
曹青
TANG Mingju;SONG Jiaxuan;WANG Chenglong;LI Yurong;CAO Qing(School of Earth Sciences and Engineering,Shaanxi Provincial Key Laboratory of Petroleum Accumulation Geology,Xi′an Shiyou University,Xi′an 710065,China;Research Institute of Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi′an 710075,China;Zhidan Oil Production Plant of Yanchang Oilfield Co.,Ltd.,Zhidan Shaanxi 717600,China)
出处
《重庆科技学院学报（自然科学版）》
CAS
2023年第4期1-6,共6页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
陕西省自然科学基础研究计划项目“致密砂岩储层中层理缝启闭的地质主控因素及启闭机制研究”(2019JQ-151)。
关键词
鄂尔多斯盆地
延安气田
山西组
低渗透储层
微观结构
渗流特征
Ordos Basin
Yan′an Gas Field
Shanxi formation
low permeability reservoir
microstructure
seepage characteristics
