沁水盆地某地区煤层气富集区灰色理论预测方法

ethods of prediction based on grey theory for coalbed methane(CBM):A case of Qinshui basin

将灰色理论应用于煤层气富集区的预测中,通过验证设计的数值实验,为研究区实际资料处理的可行性提供依据.并将基于灰色理论的灰色异常和灰色关联度属性分别应用于连井剖面和整个工区.最后通过分析基于灰色理论提取的地震属性,结合钻井信息优化并与波阻抗反演圈定的构造煤发育带对比,得到较好预测效果.

It is necessary to do some research on predicting CBM enriched zone as the state is promoting development and utilization of coal-bed methane. This paper attempts to apply grey theory to analysis of seismic attributes. Based on the gray theory, the numerical experiments are designed to provide the evidence on the feasibility of field data processing. Grey anomaly and gray correlation attributes are applied to the profile which across wells and the field data. Finally through comparing the results which are obtained from the grey attributes combined with drilling information and the delineated tectonic coal development zone which are obtained from wave impedance inversion, the verification of the results shows that methods of coalbed methane enriched zone prediction based on grey theory have achieved initial qualitative effect.