摘要
岩性地震反演技术是根据钻孔测井数据纵向分辨率很高的有利条件,对井旁地震资料进行约束;并在此基础上对孔间地震资料进行反演,推断煤系地层岩性在平面上的变化情况.谱分解技术是利用薄层调谐体离散频率特性,通过分析复杂岩层内陷频谱变化和局部相位的不稳定性,识别薄地层横向分布特征.本文根据崔庄煤矿三采区的地震资料,综合利用地震反演技术和谱分解技术等岩性解释方法圈定岩浆岩侵入煤层的范围.
The lithology seismic inversion technique utilizes logging data with high vertical resolution, and accomplishes the constrained inversion of seismic data nearby wells. The seismic data between the wells are inversed on the base, and deduce the lithology variation of coal-bearing stratum. Spectral decomposition technique utilizes the characters of lamella disperse frequency, analyzing the spectral changes of complex stratum and analyzing local phase instability to identify the landscape distributing characters of thin stratum. In this paper, real seismic data of the third excavating area of Cui Zhuang coalmine are dealt with lithology interpretation method such as seismic inversion technique and spectral decomposition technique to confirm the area of igneous rock.
出处
《地球物理学进展》
CSCD
北大核心
2008年第1期242-248,共7页
Progress in Geophysics
基金
国家自然基金项目(40574057)
国家重点基础研究发展规划(973)项目(2007CB209400)联合资助
关键词
岩性
地震反演
谱分解
岩浆岩
lithology, seismic inversion, spectral decomposition, igneous rock
