杏六区西部萨Ⅱ油层组三次加密井补孔方案数值模拟研究

发布时间：2018-04-04 07:04

  本文选题：数值模拟　切入点：三次加密井　出处：《东北石油大学》2015年硕士论文

【摘要】：本文根据杏六区西部数据资料,应用Petrel地质建模软件,在沉积相约束条件下建立杏六区西部储层三维地质模型。根据地质建模结果和油藏生产动态数据,应用Eclipse软件对产液量、含水率等进行历史拟合,对地质储量、采出程度进行计算。在历史拟合的基础上,根据数值模拟结果分析目前和不调整预测到含水98%时纵向上和平面上剩余油分布情况,研究了杏六区西部补孔调整潜力。在此基础上,结合区块油层发育情况及原井网部署特点,制定了萨Ⅱ油层组补孔原则。在沉积相带图上,严格根据补孔原则对萨Ⅱ油层组的三次加密井逐井逐层筛选。对筛选结果进行数值模拟计算,根据剩余油分布以及水淹级别调整补孔层位,制定补孔层位方案。通过对比不同方案的开发效果和经济效益,得到了最优补孔层位方案。在现井网生产预测的基础上,选定在三次加密井不同含水级别对萨II油层组进行补孔调整,用数值模拟方法预测不同补孔时机的开发指标。方案预测时,三次加密井的萨Ⅱ油层组和萨Ⅲ及以下油层组作为两套层系分别监控含水率变化,单井层系含水到达98%时,即关掉该井该层系。对不同补孔时机方案进行经济评价,优选出经济效益最好的两个补孔时机,加密补孔时间点,对补孔时机方案进行细化研究。用数值模拟方法预测细化方案的开发指标,结合经济评价给出杏六区西部萨Ⅱ油层组合理的补孔时机。
[Abstract]:Based on the data of the western part of Xingliu area, a 3D reservoir geological model of the western part of Xingliu area is established under the condition of sedimentary facies constraint by using the Petrel geological modeling software.According to the result of geological modeling and the data of reservoir production performance, Eclipse software is used to carry out historical fitting of liquid production and water cut, and the geological reserves and recovery degree are calculated.On the basis of historical fitting, according to the results of numerical simulation, the distribution of remaining oil in longitudinally and on the plane at the time of 98% water cut is analyzed, and the adjustment potential of hole filling in the west of Xing6 region is studied.On this basis, combined with the development of the reservoir and the characteristics of the original well pattern arrangement, the principle of filling holes in the formation of the sa 鈪，

本文编号：1708882