This article reviews the effect of weak interfaces on crack propagation in rock and some
other analogous brittle materials from phenomenon to mechanism. In this review, a variety of …

Hydraulic fracturing techniques have been widely used to create complex fracture network in
unconventional reservoirs. The complexity of hydraulic fracture is significantly influenced by …

A series of hydraulic fracturing experiments were conducted using Lushan shale cores (50
mm in diameter and 100 mm in length) to unravel the formation mechanism of fracture …

This work designs an experimental model of tight sandstone with a closed cemented pre-
existing fracture network (CCPF) to explore the influence of closed cemented natural …

A propagating fluid driven fracture in a rock mass is expected to interact with geological
interfaces on a wide variety of length scales. The vertical growth of hydraulic fractures in …

To investigate the vertical propagation mechanism of hydraulic fractures in interlayered
brittle shale formations in the Qingyi member of the Southern Songliao Basin in Northeast …

Hydraulic fracturing is a powerful technology, especially in stimulating fluid production from
reservoirs. However, the problem of the intersection between hydraulic fractures and natural …

Shale formations often consist of multiple distinct layers with varying rock properties, in-situ
stress states, and interface properties between layers. Weak horizontal interfaces often affect …

Hydraulic fracture propagation under natural fracture distributions has always been a hot
topic in unconventional reservoir stimulation. In this work, the hydromechanical behavior …

During the hydraulic fracturing, fractures are often kinked, blunted, or offset owing to the
alternating, interbedded interfaces of diverse properties that render fracturing performance …