【摘要】 煤储层是典型的流固耦合渗流模型的双相介质。固体颗粒与孔隙中流体之间存在相对位移,导致双相介质中地震波能量再分配发生变化。尝试研究了采用三角滤波提取特定频率的地震波属性,再以地震波场最大能量扫描法分别求取给定的低、高频范围内地震波能量的最大值以达到由地震资料直接圈定出瓦斯富集区的目的。实际资料测试结果表明,以双相介质理论为基础,能够相应提高地震资料处理与反演结果的精度与可靠性。更多还原

【Abstract】 The coal reservoir was a kind of typical fluid-solid-coupling seepage model of double-phase medium(DPM),the relative displacement existed between the solid granules and pore fluid in DPM,and would primarily result in the change of seismic wave energy redistribution.In order to achieve the aim of directly determining gas enrichment region according to the seismic data,authors tried to extract the attributes of seismic wave with specific frequency by the triangle filter,then determine the maximum energy of seismic waves within the given high frequency and low frequency ranges by scanning the maximum energy of seismic wave field.The test of actual data indicated that the maximum energy scan algorithm can improve the precision and reliability of processing and inversion of seismic data.更多还原