摘要
油藏中流体所具有的能量决定流体流动方向,为研究缝洞型油藏流体能量分布规律,建立了缝洞型油藏流势理论模型,确定三维流体势表征方法。通过单洞底水、单洞边水、双洞底水、双洞边水4种典型缝洞结构的机理模型研究流势变化规律,并确定了5种影响流势调整效果的主控因素,最终结合流势分析技术开展了剩余油挖潜研究。结果表明:单洞底水模型进行流势调整,生产井受效最好;模型水体倍数为决定性因素,水体倍数小于10倍时调流势效果好;排液量越大,对于生产井控水效果越好。提出的数学模型能够真实地反映出地层中流体能量分布变化规律,结合流势分析技术提出了挖潜方案,应用于现场效果明显。
The energy of fluid in oil reservoir determines the direction of fluid flow.In order to study the energy distribution of fluid in fractured-vuggy reservoirs,a theoretical model of fluid potential is established,and the 3D fluid potential characterization method is determined.The mechanism models of four typical fractured-vuggy structures,single hole with bottom water,single hole with side water,double hole with bottom water and double hole with side water,are use to study the change rules of flow potential,and five main control factors affecting the flow potential adjustment effect are determined,finally,the research on potential tapping of residual oil was carried out in combination with flow potential analysis.The results show that the adjustment of flow potential for the model of single hole with bottom water make the production wells work best.The model’s water multiple is the decisive factor,and the flow potential regulation effect is better when the water multiple is less than 10 times.The greater the discharge,the better the effect of water control for production wells.The proposed fluid potential solving model of fractured and cavern reservoir can truly reflect the changing rules of fluid energy distribution in the actual formation.
作者
杜春晖
仇鹤
陈小凡
田亮
乐平
李璐
姚俊波
魏博
DU Chunhui;QIU He;CHEN Xiaofan;TIAN Liang;YUE Ping;LI Lu;YAO Junbo;WEI bo(No.2 Tahe Oil Production Plant,Sinopec Northwest Oilfield Company,Korle,Xinjiang 841604,China;Petroleum Engineering School,Southwest Petroleum University,Chengdu,Sichuan 610000,China)
出处
《油气藏评价与开发》
CSCD
2020年第2期83-89,共7页
Petroleum Reservoir Evaluation and Development
基金
“十三五”国家科技重大专项“塔里木盆地碳酸盐岩油气田提高采收率关键技术示范工程”(2016ZX05053)
中国石化控递减重大专项“缝洞型油藏扩大水驱规模及改善水驱效果技术研究”(ZDP17003)。
关键词
缝洞型油藏
流势调整
三维流势场
机理模型
塔河油田
fractured-vuggy reservoir
flow adjustment
3D potential field
mechanism model
Tahe oilfield
