页岩气地震探测采集方法研究  

Study on Seismic Detection and Acquisition Method of Shale Gas

作　　者：裴文春[1] 程增庆[2] 王秀荣[2] 郎玉泉[2] 

机构地区：[1]中国煤炭地质总局建工集团,北京100161 [2]中国煤炭地质总局地球物理勘探研究院,河北涿州072750

出　　处：《中国资源综合利用》2017年第9期123-126,共4页China Resources Comprehensive Utilization

基　　金：中石油"物探重大技术现场试验及集成配套"(项目编号:2011D-3806)的子课题"高精度地球物理技术在煤矿安全开采工程中的研究与应用"的阶段性研究成果

摘　　要：本文通过页岩气地震采集条件的分析,导出了页岩气地震采集的地震响应关系式;通过页岩气地震采集激发深度与反射波能量的关系分析及页岩气因地表产生的次生波对激发能量叠加效应和对上行反射波的作用分析,提出了利用调谐效应的激发深度确定方法;通过不同炸药量的深浅层能量分析得到浅层饱和炸药量约为10 kg。实例研究表明,页岩气地震采集得到的时间剖面上在6 s时间范围内,获得了六组以上信噪比较高、连续性较好的地震反射波组。In this paper, through the analysis of shale gas seismic acquisition conditions, relationship between the response of seismic acquisition of shale gas is derived by seismic secondary wave; shale gas seismic acquisition and reflection wave excitation depth analysis of the relationship between energy and shale gas generated by the surface of the excitation energy superposition effect contribution to reflection, a method is proposed to determine the use of excitation depth tuning effect; by the amount of explosive energy in different depth layer analysis of shallow saturated explosive quantity is about 10 kg. The case study shows that six sets of seismic reflection wave groups with higher signal-to-noise ratio and better continuity have been obtained in the time range of 6 s in the shale gas seismic acquisition.

关 键 词：页岩气 地震 采集 激发 

分 类 号：P631.4[天文地球—地质矿产勘探] P618.11[天文地球—地质学]