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

Geophysical well-log evaluation in the era of unconventional hydrocarbon resources (mainly
tight oil and gas, shale oil and gas) is complicated and challenging. This review aims to fill …

Successful stimulation of shale gas reservoirs by hydraulic fracturing operations requires
prospective rocks characterized by high brittleness to prevent fast healing of natural and …

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

This paper presents an integrated methodology that utilizes the cohesive zone model (CZM)
to simulate propagation of hydraulic fractures, and their interactions with pre-existing natural …

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Bedding planes or layers can have a serious effect on the mechanical behaviour of shale
rock. Fractures occurring along bedding planes form a fracture network in shale hydraulic …

The aim of this study was twofold:(1) to assess the performance accuracy of support vector
machine (SVM) models with different kernels to predict rock brittleness and (2) compare the …

The past two decades have seen a tremendous focus by energy companies on the
development of shale gas resources in North America, resulting in an over-supply of natural …

At present, shale gas plays a significant role in hydrocarbon reservoirs. Hydraulic fracturing
is generally employed in the exploration and exploitation of shale gas. Economic and …