断块油藏高含水期分区井网调控技术

发布时间：2018-05-20 09:59

本文选题：断块油藏 + 高含水期　；参考：《油气地质与采收率》2016年06期

【摘要】：针对断块油藏不同区域开发对策不同的特点,提出分区井网调控技术。综合考虑断块油藏的构造、渗流等特征进行Ⅰ级分区,划分为夹角控制区、断层(断棱)控制区和井网控制区共3类8种区域;根据各分区剩余油富集程度对断块油藏进行Ⅱ级分区,分为剩余油富集区、剩余油弱富集区、水淹区和强水淹区。在对不同分区剩余油富集特征及控制因素分析的基础上,确定各分区井网调控方式。将不同类型的断块油藏看作是由不同类型的分区组合而成,进一步确定各分区的组合开发方式为:采油井部署在构造高部位、临近断层、靠近2条断层夹角的顶点,注水井采用边外注水,油、水井部署宜采用交错井网。将分区井网调控技术应用于辛10断块,采用油藏数值模拟方法预测,10 a累积增油量为2.53×10~4t,提高采收率4.6%。
[Abstract]:According to the characteristics of different development strategies in different regions of fault-block reservoir, the regulation technology of zoning well pattern is put forward. Considering the structural and percolation characteristics of fault-block reservoir, it is divided into three types: angle control area, fault (fault edge) control area and well pattern control area. According to the enrichment degree of remaining oil in each zone, the faulted block oil reservoir is divided into the remaining oil accumulation area, the remaining oil weak rich area, the water-flooded area and the strong water-flooded area. On the basis of the analysis of the enrichment characteristics and controlling factors of remaining oil in different zones, the regulation and control mode of well pattern in different zones is determined. Different types of fault-block reservoirs are considered to be composed of different types of zonal combinations. It is further determined that the combined development mode of each zone is as follows: the oil wells are deployed in high structural positions, near faults, and close to the vertices of the angles between two faults. Water injection wells adopt side water injection, oil, wells should be arranged using staggered well pattern. In this paper, zonal well pattern control technique is applied to Xin 10 fault block, and reservoir numerical simulation method is used to predict cumulative oil increment of 2.53 脳 10 ~ (10) ~ 4 t for 10 years, and increase oil recovery by 4.6%.
【作者单位】：中国石化胜利油田分公司勘探开发研究院;中国石油大学(华东)石油工程学院;
【基金】：国家科技重大专项“胜利油田特高含水期提高水驱采收率技术”(2016ZX05011002-003)
【分类号】：TE347

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