A narrow vertical or slanted opening in solid rocks, filled with fluid and coarse sediments.
The term "narrow" means that elongation of the fracture is much longer than its transversal size, called fracture width or fracture aperture.
The contact area between the fracture opening and the rocks is called fracture plane.
See Also
[ Infinite conductivity fracture ] [ Finite conductivity fracture ]
[ Petroleum Industry / Upstream / Well / Well-Reservoir Contact (WRC) / Hydraulic Fracture ]
[ Production / Subsurface Production / Well & Reservoir Management (WRM) / Well stimulation / Hydraulic Fracturing ]
[ Fracture conductivity (FC) ][ Dimensionless fracture conductivity (FCD) ][ Fracture half-length (Xf) ][ Fracture width (kf) ][ Fracture volume (Vf) ][ Fracture pore volume (Vef) ][ Fracture permeability (kf) ]