摘要
如何认识剩余油、评价油砂体潜力、加密井网的部署与优化是当前油田稳产的关键技术问题。结合动、静态资料,通过油藏精细描述、数值模拟技术、油藏动态分析等方法,对胡尖山A21井区剩余油分布规律及油层潜力评价进行了研究。分析表明:各单砂层之间剩余油饱和度差别较大,剩余可采储量比重较大的有长213-1和长212两个单砂层;剩余油的分布主要受原始含油饱和度、沉积微相、微幅度构造、流动单元及水驱方向的复合控制。以上结论对低渗河道水驱油藏剩余油的挖潜具有一定的指导意义。
How to recognize the law of remaining oil distribution,evaluate the potential of oil sand body,and deploy and optimize infill well pattern is the key technology of stable production in current oilfield.Based on the dynamic and static data,the remaining oil distribution and reservoir potential evaluation in HU A21 block were studied by means of the fine reservoir description,numerical simulation and reservoir dynamic analysis.Statistical analysis showed that,the saturation of remailing oil varies greatly among layers and there are two main layer,Chang-213-1 and Chang-212;and the distribution of remaining oil is mainly controlled by original oil saturation,sedimentary micro facies,micro amplitude structure,flow unit,water drive direction and the compound control.The conclusions above have certain guiding significance for tapping the remaining oil potential of low permeability channel water drive reservoir.
作者
苏明
吴小斌
王立宁
任江龙
杨武
Su Ming;Wu Xiaobin;Wang Lining;Ren Jianglong;Yang Wu(College of Petroleum Engineering and Environmental Engineering,Yan＇an University,Yan＇an,Shaanxi 716000,China;Institute of petroleum and natural gas engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China;Engineering Cost Management Department of Changqing Oil field Corapany,Xi＇an,Shaan：ci 710021,China)
出处
《非常规油气》
2018年第4期58-64,74,共8页
Unconventional Oil & Gas
基金
陕西省大学生创新创业训练计划项目"陕北定边地区长2注剩余油分布及井网优化"(1268)资助
关键词
长2油藏
剩余油分布
潜力分析
复合控制
Chang-2 reservoir
remaining oil distribution
potential analysis
composite control
