气井复合防砂技术研究与应用  

Research and application of composite sand control technology in gas wells

作　　者：杜凯 Du Kai(Liaoxing Oil and Gas Development Company,Panjin 124010,china)

机构地区：[1]辽兴油气开发公司技术监督中心,辽宁盘锦124010

出　　处：《石化技术》2018年第4期140-140,共1页Petrochemical Industry Technology

摘　　要：在疏松砂岩油气藏,地层内部存在着大量的自由微粒,在流体流动时,微粒会在地层内部运移,直至井筒。当气体流量继续增加至新极限,即出砂临界速度时,构架储层岩石孔隙的骨架颗粒处于松散的点式接触状态,骨架颗粒脱落变成自由砂随气流带出。本文对气井复合防砂技术与应用进行了研究。There exist plenty of free particles in the formation of the loose sandstone reservoir.When the fluid flows,the particles migrate in the formation to the wellbore.When the gas flow rate continues to increase to the new limit,namely the critical speed of sand production,the skeleton particles of the rock pore in the skeleton of the reservoir are in a loose point contact state,and the skeleton particles become free sand and flow out.This article describes the composite sand control technology along with its application in gas wells.

关 键 词：砂岩 运移 自由砂 

分 类 号：TE37[石油与天然气工程—油气田开发工程]