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。
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 for predicting coal seam thickness.
出处
《煤炭技术》
CAS
北大核心
2011年第4期132-134,共3页
Coal Technology
关键词
煤田三维地震
地震属性
瞬时频率
孔隙度预测
3D coalfield seismic
seismic attribute
instaneous frequency
porosity prediction
作者简介
何志勇（1985-），男，湖北荆州人，中国地质大学（北京）硕士研究生，专业：矿产普查与勘探，研究方向：煤层气勘探与开发，E—mail：hezyl315@foxmail．com
