缝洞型底水油藏开发动态数值模拟方法研究  

Numerical simulation research on development performance of fractured-vuggy reservoirs with bottom water

作　　者：李隆新[1] 吴锋[1] 张烈辉[1] 李允[1] 

机构地区：[1]油气藏地质开发工程国家重点实验室西南石油大学,四川成都610500

出　　处：《特种油气藏》2013年第3期104-107,156,共4页Special Oil & Gas Reservoirs

基　　金：国家重点基础研究计划"973"项目"碳酸盐岩缝洞型油藏开采机理及提高采收率基础研究"(2011CB201000);国家科技重大专项"碳酸盐岩缝洞型油藏开发关键技术完善与应用"(2011ZX05049-004)

摘　　要：缝洞型油藏表征单元具有多尺度性,无法直接采用基于连续介质力学的商业数模软件进行动态模拟。根据渗流力学和流体力学理论,针对缝洞型油藏储集体特征尺度的特性,建立了一种新的缝洞型底水油藏动态模拟模型。通过对中小裂缝、大裂缝和大型溶洞的特殊处理,实现了离散介质特性到连续介质模型中的叠加,提出一套适用于缝洞型底水油藏水淹动态的数值模拟方法。通过计算实例表明该方法是有效的、可行的。The unit for characterization of fractured-vuggy reservoirs presents multi-scale feature and cannot be directly simulated by using numerical simulation software based on continuum mechanics.A new dynamic simulation model has been established for fractured-vuggy reservoirs with bottom water based on mechanics of fluid flow through porous media and the characteristic scale of reservoirs.The new model has realized coupling of discrete media and continuous media through special treatment of microfracture,macrofracture and cavern,thus proposed a suitable numerical simulation method for prediction of water flooding performance in fractured-vuggy reservoirs with bottom water.The effectiveness and feasibility of the method have been proved by calculation examples.

关 键 词：数值模拟 缝洞型底水油藏 动态模型 裂缝 溶洞 渗透率张量 

分 类 号：TE319[石油与天然气工程—油气田开发工程]