The controlling factors and processes for the formation of the secondary porosity of the deep-seated reservoir rocks in the Bonan depression,Shandong

The controlling factors and processes examined in the present paper consist of rock fabrics,geothermal field,abnormal high pressure,deposition,diagenesis,tectonism and seismism. These factors and processes may have exerted an important influence on the physical properties of the deep-seated reservoir rocks in the Bonan depression,Shandong.