油气藏评价与开发 ›› 2018, Vol. 8 ›› Issue (3): 30-34.

• 油气藏评价 • 上一篇    下一篇

基于模糊聚类分析方法的层系优化研究

冯国庆,潘丽燕,孔冰,罗佳顺   

  1. 西南石油大学油气藏地质及开发工程国家重点实验室,四川 成都 610500
  • 收稿日期:2017-09-01 发布日期:2018-12-07 出版日期:2018-06-26
  • 作者简介:冯国庆(1974—),男,副教授,硕士生导师,油气藏数值模拟、油气藏工程、储层建模、测井资料解释等方向科研和教学工作。
  • 基金资助:
    国家科技重大专项“低渗—超低渗油藏提高储量动用关键工艺技术”(2017ZX05013-005)

Hierarchical optimization research based on fuzzy clustering analysis

Feng Guoqing,Pan Liyan,Kong Bing,Luo Jiashun   

  1. (State Key Laboratory of Reservoir Geology and Development Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China)
  • Received:2017-09-01 Online:2018-12-07 Published:2018-06-26

摘要:

针对H油藏开发现状的不足和剩余油分布规律,应用模糊聚类分析方法和数值模拟技术进行层系优化,对储层的多个影响因素进行评价,最终得到一个综合评价指标,并据此优化层系,以达到减少层间矛盾,提高水驱动用程度的目的。首先,利用灰色关联分析法确定出油藏小层的采出程度、水驱动用程度、含水率、剩余油储量丰度、孔隙度、渗透率变异系数、储层深度、含油面积和渗透率9个特征参数为评价指标,基于模糊聚类分析方法将小层进行重组分类,得到层系优化后的三套方案,每套方案分为两套层系。再利用数值模拟方法预测10年后3套方案的年产油量、采出程度、含水率对比情况,得出最佳方案。实例结果证明了模糊聚类分析方法在层系优化中的实际应用可行性。

关键词: H油藏, 层系优化, 模糊聚类分析, 数值模拟

Abstract:

According to the deficiency of the development status and the distribution law of the remaining oil in the reservoir-H, we used the fuzzy clustering analysis and numerical simulation technique to optimize the layers, evaluated the factors influencing the reservoir, and ultimately, got the comprehensive evaluation index, by which we could optimize the layers to reduce the contradiction between the layers and increase the water drive degree. Firstly, we determined 9 feature parameters as the evaluation indexes by the gray correlation analysis, that is, the water extraction degree, water flooding degree, abundance of remaining oil storage, porosity, variable coefficient of permeability, reservoir depth, oil content, and permeability. Based on the fuzzy clustering analysis, we classified the small layers into three groups. Each set of schemes was divided into two sets of layers. Then, we used the numerical simulation to predict and contrast the annual oil production, recovery, and moisture content of three schemes in 10 years later to get the preferred plan. The experimental results confirmed the feasiblility of the fuzzy clustering method in the optimization of the layer system.

Key words: reservoir-H, reservoir optimization, fuzzy cluster analysis, numerical simulation

中图分类号: 

  • TE39