【摘要】 从延川南地区地震资料中提取各种地震振幅、频率、相位等地震属性,比较分析地震属性与反射结构、煤层气储层中的煤层、含水层、含气层的关系,结果表明地震属性分析可以精细地描述煤层气储层的构造、地层和岩性特征,可以判别储层中强含水、含气层。结合钻井地质资料与测井资料,三瞬剖面解释可以进行煤层厚度估计与质量评价,为煤层气钻井设计提供依据。更多还原

【Abstract】 Based on the seismic amplitudes,frequencies and phases from the seismic data in South Yanchuan area,this paper con ducted the comparative analysis of the seismic attributes and reflection coefficient meter,the relations of coal seam,water-bearing/ gas-bearing formation.The results show that the seismic attribute analysis can refine description of the structures,the layers and the lithologies of the coalbed methane reservoir,and can be used to detect the strong water-bearing reservoirs,or gas-bearing for mations.Combined with drilling geological data and logging data,the three instantaneous sections interpretation can be used to esti mate seam thickness and assess coalbed quality evaluation,provide the basis for CBM drilling design.更多还原