疏松砂岩气藏水敏及微粒运移对地层渗流条件影响的实验研究  

Experimental Study on Effect of Water Sensitivity and Particle Migration on Formation Fluid Flow Conditions of Unconsolidated Sandstone Gas Reservoir

作　　者：高建[1] 林兴[1] 

机构地区：[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

出　　处：《内蒙古石油化工》2013年第15期124-125,共2页Inner Mongolia Petrochemical Industry

摘　　要：针对疏松砂岩结构疏松、强度低的特点,利用真实的松散岩心,制作人工填砂岩心柱,进行不同含水饱和度下的比表面测试和不同含水饱和度及流速下的渗透率测试。实验结果表明:随着流速的增加,岩心渗透率先增大后缓慢下降;不同含水饱和度下及流速下的岩心渗透率改善程度振荡变化,整体概括为"两头大,中间小";比面改善的变化趋势与渗透率的变化一致。As unconsolidated sandstone has the characteristics of loose structure and low intensity,using the real crushed sand to make artifical core samples,which is to for specific surface test in different water saturation condition and permeability test in different water saturation and different velocity of flow.The result showed that with the flowrate increasing,the core permeability increased at first and then decreased slowly;the degree of improvement of the core permeability in different water saturation and different velocity of flow oscillated,it was summarized＂large in both sides,little in middle＂;the trend of specific surface and the permeability is united.

关 键 词：疏松砂岩 水敏 微粒运移 渗流条件 

分 类 号：TE311.2[石油与天然气工程—油气田开发工程]