四川盆地南部页岩气地震勘探新进展  

New progress in seismic exploration of shale gas reservoirs in the southern Sichuan Basin

作　　者：李志荣[1] 邓小江[1] 杨晓[1] 巫芙蓉[1] 刘定锦[1] 张红[1] 谭荣彪[1] 周跃宗[1] 

机构地区：[1]川庆钻探工程有限公司地球物理勘探公司

出　　处：《天然气工业》2011年第4期40-43,125-126,共4页Natural Gas Industry

摘　　要：我国目前对于页岩气的研究多集中在基础理论上,利用地球物理资料对页岩气进行研究尚处于探索阶段。为此,在对四川盆地南部页岩层段地质、地球物理响应特征分析的基础上,通过地震资料采集、处理及解释技术攻关,形成了一套较为完整的页岩气地球物理勘探思路及技术流程,取得了页岩气地震勘探的新进展。采集方面,通过对激发接收参数的试验攻关,优选了技术性与经济性兼备的、合理的采集参数;处理方面,特别注重静校正、保真保幅及浅层信息保护等处理环节;解释方面,在分析页岩气主控因素的基础上,通过断层精细解释+埋深编制+优质页岩厚度预测等环节的工作,为该地区页岩气资源评价和开发目标区的选择提供了坚实的基础资料。The present research of shale gas primarily focuses on basic theories in China,while such research by use of geophysical data is still in its exploratory stage.Based on an analysis of geological features and geophysical response characteristics of the shale beds in the southern Sichuan Basin,a relatively complete set of ideas and work flow is established for geophysical exploration of shale gas through seismic data acquisition,processing and interpretation techniques.In terms of seismic acquisition,acquisition data are optimized through successful experiments of shooting and receiving parameters.In respect of seismic data processing,special attentions are paid to static correction,fidelity-keeping,amplitude preservation,and the protection of shallow signals.As to seismic data interpretation,based on an analysis of the major controlling factors of shale gas reservoirs,detailed basic data are provided for shale gas resources assessment and development target selection through detailed fault interpretation,burial depth mapping,and thickness prediction of quality shale beds.

关 键 词：四川盆地 南 页岩气 地震勘探 技术 进展 采集处理解释 技术攻关 

分 类 号：P618.13[天文地球—矿床学] P631.4[天文地球—地质学]