应用微地震监测数据估算储层压裂改造体积  

Reservoir fracturing volume estimation with microseismic monitoring data.

作　　者：张云银[1] 刘海宁[1] 李红梅[1] 王维波[2] 沈财余[1] 

机构地区：[1]中国石化胜利油田物探研究院,山东东营257022 [2]中国石油大学(华东)信息与控制工程学院,山东青岛266580

出　　处：《石油地球物理勘探》2017年第2期309-314,共6页Oil Geophysical Prospecting

基　　金：中国石化胜利油田分公司产业化项目"地面微地震一体化监测系统集成"(YC1705)资助

摘　　要：准确计算储层压裂改造体积有助于评估压裂效果及部署开发方案。针对微地震事件点分布边界不规则、储层压裂改造体积难以准确计算的问题,在前人研究的基础上,选用基于Delaunay三角形剖分的Alphashape方法,研发了基于微地震监测数据的储层压裂改造体积估算方法,并编写了算法程序,解决了利用微地震事件点估计不规则边界的问题,较为准确地计算出了储层压裂改造体积。利用该方法计算了砂砾岩体、泥页岩、致密砂岩等不同类型储层压裂改造体积,结果显示该方法具有较好的稳定性和适用性,能够适用于评价各类非常规储层压裂改造效果。The accurate calculation of fracturing volume contributes to the evaluation of fracturing effect and the next deployment scheme. However it is difficult to accurately calculate the fracturing volume because of irregular boundaries of micro-seismic event points. On the basis of previous studies, we choose the Alpha-shape method based on Delaunay triangulation to develop a reservoir fracturing vo-lume estimation method based on micro-seismic monitoring data. At the same time, the algorithm is programmed. This method was used to calculate the fracturing volume of different types of reservoir, including the sand-conglomerate body, mud shale and tight sandstone. The results show that the method has good stability and good applicability, so it can be used to evaluate the fracturing vo-lume of different types of reservoir. © 2017, Editorial Department OIL GEOPHYSICAL PROSPECTING. All right reserved.

关 键 词：储层改造体积 微地震 水力压裂 非常规油气藏 

分 类 号：P631[天文地球—地质矿产勘探]