Hydraulic fracturing is necessary to stimulate deep geothermal reservoirs. Compared with
traditional hydraulic fracturing (THF), cyclic hydraulic fracturing (CHF) decreases the …

True triaxial experiment with a synchronous acoustic emission (AE) monitoring system is a
popular measure for the assessment of strength and cracking behaviors of brittle flawed …

When salt caverns are used for the medium of underground energy storage, the surrounding
rock experiences cyclic loading due to periodical injection-production. The cyclic load …

Deep shale gas reservoirs, compared to shallow and intermediate shale gas reservoirs,
usually exhibit lower fracture complexity, smaller stimulated volume, poorer conductivity, and …

As one of the most promising shale gas reservoirs in China, the Lower Silurian Longmaxi
formation in the Sichuan Basin has produced a large amount of shale gas during the last few …

Understanding and characterization of fracture propagation are crucial for enhancing the
stimulation of low-permeability gas reservoirs. This study investigates the effects of shale …

Previous studies have revealed that hydraulic fracturing behavior in crystalline rock (eg,
granite) is highly dependent on mineral content, grain size, and heterogeneity and is …

Hydraulic fracturing is commonly used to enhance the hydraulic conductivity of geothermal,
oil, and gas reservoirs, particularly those situated in enclosed and unconventional …

The abundant geothermal energy in hot dry rock (HDR) geothermal reservoirs is an
attractive renewable energy resource with great potential. Cyclic injection in hydraulic …

Large-scale and complex cracks have always been the eternal goal of hydraulic fracturing
(HF) technology in shale reservoirs, but there has been the public concern that the HF could …