Clarifying the evaluation methods and factors influencing shale brittleness is of great
practical significance for fracture mechanism analysis, rock mass stability evaluation …

Brittleness is an important parameter controlling the mechanical behavior and failure
characteristics of rocks under loading and unloading conditions, such as fracability …

Brittleness is a key mechanical characteristic of rock and critical to various engineering
practices particularly to design efficient fracturing stimulation of unconventional shale gas …

China has the richest shale gas resources worldwide. However, the exploitation of shale gas
in China is very recent, and historical data on the output of shale gas are extremely limited …

The quantitative determination and evaluation of rock brittleness are crucial for the
estimation of excavation efficiency and the improvement of hydraulic fracturing efficiency …

The rock mass on the bank slope of the Three Gorges Reservoir (TGR) area often suffers
from a drying–wetting cycle (DWC). How the DWCs significantly affect the mechanical …

Brittleness is a significant indicator of a series of engineering problems in the oil and gas
community. However, the majority of brittleness evaluation methods focus on brittle rock, but …

Shear wave velocity (Vs) is an important parameter for reservoir description and fluid
identification and is extensively applied in study of oil and gas reservoir geomechanics and …

Fracture has a vital effect on the storage and seepage ability of oil and gas in shale
reservoirs, and its effective identification and evaluation is of great significance for shale oil …

Accurate assessment of brittleness of rock material is of great significance in the fields of
underground mining engineering and unconventional oil and gas reservoirs. In this study …