在计算石炭系双重介质储集类型孔隙度时,往往采用以威利公式为基础的岩心分析孔隙度和测井信息的声波时差,密度建立关系图版。 由于钻井取上来的岩心大部分是孔隙性的岩心,裂缝发育的岩心不易取上。实验室分析的岩心主要也是孔隙性的岩心,所以利用测井信息与岩心分析的孔隙度建立的关系只能反映基质孔隙度,裂缝孔隙度就不能反映。 In calculating the porosity of the dual-medium carboniferous reservoir type, a relational plate is often constructed using the well-defined core analysis porosity and log information of acoustic time differences and densities. Since most of the cores drilled are porous cores, cores with fractured cores are not easy to pick up. Laboratory analysis of the core is also a porous core, so the use of logging information and core porosity analysis of the relationship established can only reflect the matrix porosity, fracture porosity can not be reflected.