Interaction Law between Natural Fractures-Vugs and Acid-Etched Fracture during Steering Acid Fracturing in Carbonate Reservoirs

Figure 17

Gaussian curvature of the selected area: (a) left view; (b) front view; (c) stereogram. There are more red spots in the red area, indicating that the area has higher Gaussian curvature and a rougher surface. There are more blue spots in the blue area, indicating that the area has a lower Gaussian curvature and a smoother surface.