南八仙油田油气层出砂机理认识及出砂预测  

SAND PRODUCTION MECHANISM AND ITS FORECAST IN NANBAXIAN OILFIELD

作　　者：杨银山 蓝春连 宋彦海 曹宁娜 

机构地区：[1]中国石油青海油田冷湖油田管理处

出　　处：《钻采工艺》2011年第5期52-55,8,共4页Drilling & Production Technology

基　　金：国家重大专项项目(编号:2008zx5024-003);中国石油青海油田科技攻关项目(编号:2007K16)资助

摘　　要：南八仙油田从1999年投入试采开发后,许多油气井不同程度表现出了出砂现象,对油井产量影响较大,设备击穿现象严重。为此,针对南八仙油田在生产过程中出现不同类型的出砂情况,通过对储层岩石应力和敏感性进行试验,结合生产过程中油气井的出砂现象,分析了南八仙油田出砂机理和导致出砂的多种因素;并通过利用声波时差曲线、孔隙度、出砂指数法等多种方法对南八仙油田的部分井的不同井段的出砂情况进行了分析预测,以期能够对南八仙油田今后油气井的出砂情况进行定性分析,在生产中控制油井的出砂,指导油田的生产。Many oil and gas wells have shown the phenomena of different degree sand production since test production in 1999 in Nanbaxian oilfield,which resulted in a greater impact on oil and gas production and equipment. Based on the different types of sand production in the production process in Nanbaxian oilfield,the sand production mechanism and the variety of factors caused sand production were analyzed by stress and sensitivity testing,and using the interval transit time curve,porosity,index method of sand production and other methods forecasted sand production in different sections. The results of analysis and prediction could qualitatively analyzed the sand production cases in the later oil and gas production,and control the sand production and guide the production of oil and gas.

关 键 词：油气田 敏感性试验 出砂 出砂机理 预测 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]