摘要
本文以精细油藏数值模拟的计算结果为基础,通过油水相对渗透率关系反求出含水率为98%时的残余油饱和度,建立了计算剩余可采储量分布的方法;结合地质和开发因素对剩余油富集区进行综合评价,根据单井措施费用和油价选定补孔措施层的经济增油量作为筛选剩余油富集区的第一标准,选择地下含水率小于75%的中等水淹程度作为剩余油富集区的第二标准;最后与油藏地质研究的有利微构造类型和水下分支河道优势沉积微相分布进行叠合,得到剩余油富集分布;经过综合分析得到了胡12断块剩余油富集分布特点和具体井区,对于指导该断块挖潜具有重要指导作用.
Fine reservoir numerical simulation has been performed for Hu-12 block reservoir in this paper, and a method to determine the remaining oil in-place is presented based on economical residual oil saturation from water-oil relative permeability relations at 98% water-cut underground. Enrichment of remaining oil can be gotten based on both economical incremental oil and 75% water-cut below underground for the formation candidate, and then superposition to favorable micro-structure and deposition face. Characterization of remaining oil in Hu-12 block reservoir has been given after comprehensive analysis, and the typical enrichment well sites around in this block will play an important role for development adjustment.
出处
《应用基础与工程科学学报》
EI
CSCD
2007年第1期84-89,共6页
Journal of Basic Science and Engineering
基金
教育部新世纪优秀人才资助项目(NCET-06-0089)
关键词
油藏数值模拟
历史拟合
水淹程度
剩余油富集
reservoir numerical simulation
history matching
underground water-cut
enrichment of remaining oil
