| 利用地震属性预测煤层气储层孔隙度方法 |
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| 引用本文： | 何志勇,刘海涛,汪铖,赵旭.利用地震属性预测煤层气储层孔隙度方法[J].煤炭技术,2011,30(4). |
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| 作者姓名： | 何志勇 刘海涛 汪铖 赵旭 |
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| 作者单位： | 1. 中国地质大学,能源学院,北京,100083
2. 江汉石油管理局,地球物理勘探公司,湖北,潜江,433100 |
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| 摘 要： | 以地震属性分析为基础,优选出相关程度高的地震属性,应用数学模型得到钻井处地震属性与孔隙度之间的多元线性回归方程。将该方程应用到非井点的地震属性上,从而实现煤储层孔隙度定量预测。研究发现,在沁水盆地石港矿区煤储层孔隙度与地震反射瞬时频率成线性相关,且相关程度较高,预测的效果明显,证明了用地震属性预测煤储层孔隙度是可行的。
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| 关 键 词： | 煤田三维地震 地震属性 瞬时频率 孔隙度预测 |
Seismic Attributions Analysis and its Application in Predicting Porosity |
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| HE Zhi-yong,LIU Hai-tao,WANG Cheng,ZHAO Xu.Seismic Attributions Analysis and its Application in Predicting Porosity[J].Coal Technology,2011,30(4). |
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| Authors: | HE Zhi-yong LIU Hai-tao WANG Cheng ZHAO Xu |
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| Affiliation: | HE Zhi-yong1,LIU Hai-tao1,WANG Cheng1,ZHAO Xu2(1.School of Energy Resources,China University of Geosciences,Beijing 100083,China,2.Geophysical Exploration Company of Jianghan Petroleum Administration,Qianjiang 433100,China) |
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| Abstract: | A new qualitative method is presented to predict coalbel gas reservoir porosity on the basis of seismic attribute.The basic methodology is to build a mathematic model through the regression analysis of mathematic geology.A achievement has been aquired which is the porosity to instantaneous frequency and the gas-product percentage to the reflection amplititude.After the application of the research results in Shigang coal mining area of Qinshui basin,it proves that the seismic attribute technique is feasible ... |
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| Keywords: | 3D coalfield seismic seismic attribute instaneous frequency porosity prediction |
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