天然气产量主要来自于常规资源,但也有相当一部分来自于页岩气等非常规资源,因此,页岩气非常规资源正逐渐成为重要的勘探开发目标。为了了解页岩气藏的地球物理响应,采用了用地质、地层评价分析约束的岩石物理关系计算诸如波阻抗、vp/vs等有效特性。研究结果表明,地下岩石参数(粘土、石英、方解石等矿物成分)、总有机碳含量(TOC)以及它们之间的相互作用,能严重影响富含有机质岩 Natural gas production mainly comes from conventional resources, but a considerable part comes from unconventional resources such as shale gas. Therefore, unconventional resources of shale gas are gradually becoming important exploration and development targets. In order to understand the geophysical responses of shale gas reservoirs, effective features such as wave impedance and vp / vs are calculated using petrophysical relationships constrained by geological and stratigraphic evaluation. The results show that the underground rock parameters (such as clay, quartz, calcite and other mineral components), total organic carbon (TOC) and the interaction between them can seriously affect the enrichment of organic matter