碳酸盐岩缝洞型油藏水体参数计算方法应用研究  

Application Study on Calculation Method of Water Volumetric Parameters of Fractured-vuggy Carbonate Reservoir in Tahe Oilfield

作　　者：李璐[1] 杜春晖[1] 侯献海 付亚飞 刘东诚 LI Lu;DU Chunhui;HOU Xianhai;FU Yafei;LIU Dongcheng(Northwest Oilfield Company, SINOPEC, Urumqi 841604, China;State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu 610500, China)

机构地区：[1]中国石化西北油田分公司,新疆乌鲁木齐830000 [2]西南石油大学油气藏地质与开发工程国家重点实验室,四川成都610500

出　　处：《广东石油化工学院学报》2021年第6期5-8,共4页Journal of Guangdong University of Petrochemical Technology

基　　金：国家科技重大专项(2016ZX05053)。

摘　　要：塔河碳酸盐岩缝洞型油藏属于块状未饱和底水油藏,无论是开发早期的自喷生产,还是中期的水驱、气驱生产,水体参数的准确计算对于开发决策意义重大。由于缝洞空间组合的复杂性导致油水关系复杂,不同缝洞系统阶段驱动能量不同,一直难以形成一套相对完善的水体参数计算方法。文章基于油藏物质平衡方程,明确不同岩溶背景下油井驱动类型及其对应水侵模式,给出了水侵量和水体大小的计算方法,并在塔河强底水单元中利用数模实例验证,矿场应用效果好。The fractured-vuggy carbonate reservoirs in Tahe Oilfield belong to unsaturated massive reservoirs with bottom water.Accurate calculation of water volumetric parameters is of great significance to the formulation of development plans in both early stage of flowing production and in the subsequent water drive and gas drive production.The complexity of fracture-vug spatial combination leads to complex oil-water relationship in reservoir,which makes driving energy different in different stages of these fracture-vug units.Therefore,it has been difficult to form a relatively perfect method for calculating water volumetric parameters.Based on the method of flow material balance,the driving types and their corresponding water invasion modes of oil wells under different karst backgrounds are defined,and the calculation methods of water influx and water body volume are given.By choosing the development unit with large volume of bottom water in Tahe Oilfield,the numerical simulation is used to verify the calculation method,and good field application results are obtained.

关 键 词：缝洞型碳酸盐岩 物质平衡 底水油藏 水体参数 水侵模型 

分 类 号：TE344[石油与天然气工程—油气田开发工程]