TITLE:
Study of Injection Rate on Fracture Network Complexity during Hydraulic Fracturing: Experimental Insights from Concrete, Sandstone and Bituminous Coal
AUTHORS:
Tresphord Chishimba, Weiguo Liang, Ngambua Ngambua Rene, Irfan Ahmad Butt
KEYWORDS:
Hydraulic Fracturing, Injection Rate, Fracture Propagation, Fluid Viscosity, Fracture Complexity
JOURNAL NAME:
Engineering,
Vol.18 No.5,
May
8,
2026
ABSTRACT: This study examines the influence of injection rate on fracture development during hydraulic fracturing using water as the fracturing fluid. Laboratory experiments were performed on concrete, low-permeability sandstone, and brittle bituminous coal over a broad range of injection rates. The results indicate that both low (