低渗透边底水油藏水平井开发技术政策界限研究  

Study on the technical policy limits of horizontal well development in low permeability reservoirs with edge and bottom water

作　　者：云彦舒[1] YUN Yanshu(Yan'an Vocational&Technical College,Yan'an Shaanxi 716000,China)

机构地区：[1]延安职业技术学院,陕西延安716000

出　　处：《石油化工应用》2023年第2期62-64,75,共4页Petrochemical Industry Application

摘　　要：低渗透边底水油藏在鄂尔多斯盆地延长油田广泛分布和发育,该类油藏无论在储量和产量上均占有一定的规模,但也存在储量丰度低,品位差,地面条件复杂,开发难度等问题,水平井开发该类油藏具有单井控制储量大、泄油体积大、产能高、降本增效等方面的优势,目前对于合理开发技术政策研究相对较少,严重制约了低渗透边底水油藏的高效开发。本文采用数值模拟技术方法,首先对注水开发的可行性进行了论证,然后从注采井网模式、纵向注水位置、井排距和注采比四个重要的开发技术政策进行了分析和优化,为低渗透边底水油藏水平井的高效开发提供理论依据和技术支撑。Low permeability edge and bottom water reservoirs are widely distributed and developed in Yanchang oilfield,Ordos Basin.Such reservoirs occupy a certain scale in terms of reserves and production,but there are also problems such as low reserve abundance,poor grade,complex surface conditions and difficult development.Horizontal well development of this kind of reservoir has the advantages of large single well controlled reserves,large oil drainage volume,high productivity,cost reduction and efficiency increase.At present,there is relatively little research on rational development technology policies,which seriously restricts the efficient development of low permeability edge and bottom water reservoirs.This paper first demonstrates the feasibility of water injection development by using numerical simulation technology,and then analyzes and optimizes four important development technology policies from the aspects of injection production well pattern,vertical water injection location,well spacing and injection production ratio,so as to provide theoretical basis and technical support for the efficient development of horizontal wells in low permeability reservoirs with edge and bottom water.

关 键 词：低渗透边底水油藏 注采井网 注水位置 井排距 注采比 

分 类 号：TE357.61[石油与天然气工程—油气田开发工程]