文章检索
首页» 过刊浏览» 2017» Vol. 2» Issue (2) 210-227     DOI : 10.3969/j.issn.2096-1693.2017.02.020
最新目录| | 过刊浏览| 高级检索
裂缝储层地震物理模拟研究
王玲玲1,魏建新1,黄平2,狄帮让1,秦菽苑1
1 中国石油大学(北京)油气资源与探测国家重点实验室, CNPC物探重点实验室,北京 102249 2 中国石油西南油气田公司勘探开发研究院,成都 610041
Study of seismic physical modelling of fractured reservoirs
WANG Lingling1, WEI Jianxin1, HUANG Ping2, DI Bangrang1, QIN Shuyuan1
1 State Key Laboratory of Petroleum Resources and Prospecting, CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum-Beijing, Beijing 102249, China 2 Exploration and Development Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu 610041, China

全文:   HTML (1 KB) 
文章导读  
摘要  根据中国西南部四川盆地中部龙岗地区的地质构造,制作出一个小裂缝尺度、多种裂缝参数、成比例的裂缝储层地震物理模型。采用薄片模拟裂缝的方法制作可变参数的小尺寸裂缝带,模拟一定区域内所有裂缝的等效特征。该模型是对裂缝物理模型技术的一个新尝试。通过进行数据采集和处理,得到分方位数据。然后分析4个裂缝密度变化的裂缝带其中心位置处振幅随入射角的变化情况,最后采用振幅和频率衰减梯度两种属性的方位各向异性预测裂缝发育区。结果显示,裂缝带中心位置处振幅具有方位各向异性的特征,方位振幅的拟合结果表明预测的裂缝方位是90°,预测的4个裂缝密度值是增加的趋势,都与模型设计相符。和振幅属性相比,频率衰减梯度属性的方位各向异性对小尺度裂缝更为敏感。
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
关键词 : 裂缝, 物理模型, 各向异性, 裂缝预测
Abstract

  A small fracture-scale, multi-fractured parameter proportional model of a fractured reservoir has been constructed in the laboratory based on the geological background of Longgang in the central Szechwan Basin, southeast China. Small-scale fractured zones with variable fracture parameters are constructed to simulate the equivalent characteristics of all fractures in certain regions and paper sheets are used to simulate fractures. The model is a trial of the fractured physical model technique. Then the data acquisition and processing are carried out to obtain azimuthal data. Finally, we analyse amplitude at central CDPs of four fractured zones with different fracture densities versus incident angles and the azimuthal anisotropy of amplitude and frequency attenuation gradient attributes are used to detect the development of fractures. The results show that the amplitude of the fractured zones has characteristics of azimuthal anisotropy and the fitting results of the azimuthal amplitude show the predicted orientations are around 90º and four fracture densities have an increasing trend, in accordance with the model design. The azimuthal anisotropy of frequency attenuation gradient attributes is more sensitive to small fractures, comparing with amplitude.

Key words: fractures physical model anisotropy fracture detection
收稿日期: 2017-05-28     
PACS:    
基金资助:中国国家自然科学基金(41474112);国家重点基础研究发展规划(973)计划项目(2013CB228601);中石油重大科技专项(XNS14JS2013-042)资助
通讯作者: 魏建新, weijx@cup.edu.cn
引用本文:   
王玲玲,魏建新,黄平,狄帮让,秦菽苑. 裂缝储层地震物理模拟研究[J]. 石油科学通报, 2017, 2(2): 210-227. WANG Lingling, WEI Jianxin, HUANG Ping, DI Bangrang, QIN Shuyuan. Study of seismic physical modelling of fractured reservoirs. Petroleum Science Bulletin, 2017, 2(2): 210-227.
链接本文:  
版权所有 2016 《石油科学通报》杂志社