A Workflow for Integrated Geological Modeling for Shale Gas Reservoirs: A Case Study of the Fuling Shale Gas Reservoir in the Sichuan Basin, China

Table 1

Fracture facies division and fracture characteristic parameter distribution based on tectonic stress analysis in the study area.

Fracture facies	Structural position and deformation	Natural fracture property	Main stress direction	Fracture dip	Fracture intensity	Fracture aperture
Facies 1	Structural slope area, strong compressional deformation	Compressional fracture	NW-SE	70°~90°	Very strong	0.005 mm
Facies 2	Low-amplitude uplift structure, structural bending deformation	Extensional fracture	NW, SE	60°~80°	Strong	0.05 mm
Facies 3	Low-amplitude syncline, weak compressional deformation	Compressional fracture	NE-SW	50°~70°	Weak	0.0003 mm
Facies 4	Strong structural deformation under shear and compression	Shearing or compressional fracture	NW, SE	70°~90°	Strong	0.01 mm
Facies 5	Structural slope area, compressional deformation is obvious	Compressional fracture	NW-SE	70°~80°	Medium	0.005 mm