摘要
通过研究勘查区3#含瓦斯煤层中地震波存在的明显变化特征,诸如因双相介质中各频率成份吸收作用不同而表现出的"低频共振、高频衰减"现象等,利用Biot双相介质中地震波传播理论,提取了3#煤层地震反射波中所包含的含瓦斯双相特性值,并根据该区钻孔煤样瓦斯含量检测值进行了标定,预测了该区3#煤层瓦斯含量。煤样瓦斯含量检测值与地震资料预测值回归方程显示,二者之间呈负相关关系。
Duplex medium theory that media from the ground floor of solid and fluid composed of two parts, is the rock solid framework, the fluid in the frame for filling cracks and pores in the liquid or gas. Underground coal seam broken with the development and construction of industrial zones is the production of coal gas outburst of the major risk areas, in these regions due to underground stress has been released, coal particles in the absorption of organic analysis by gas, a free-gas, such flexibility in the medium The area of performance for the two-phase media features, such medium has a unique seismic wave propagation through seismic waves from coal seams contained in the two-phase characteristics of the gas, coal gas content can be predicted.
出处
《中国煤炭地质》
2008年第B09期79-81,共3页
Coal Geology of China
