页岩气储层可压裂性评价技术

袁俊亮, 邓金根, 张定宇, 李大华, 闫伟, 陈朝刚… - 石油学报, 2013 - syxb-cps.com.cn
从页岩气储层岩石的脆性指数, 断裂韧性, 岩石力学特性3 个方面, 对中国页岩气储层可压裂性
评价技术进行了研究. 根据弹性模量与泊松比的分布范围, 建立了适用于四川盆地下志留统龙马 …

Effect of water saturation on the fracture and mechanical properties of sedimentary rocks

D Guha Roy, TN Singh, J Kodikara, R Das - Rock Mechanics and Rock …, 2017 - Springer
Fracture and mechanical properties of the water saturated sedimentary rocks have been
experimentally investigated in the present paper. Three types of sandstones and one type of …

[HTML][HTML] Tensile and tear-type fracture toughness of gypsum material: Direct and indirect testing methods

D Pietras, MRM Aliha, HG Kucheki… - Journal of Rock Mechanics …, 2023 - Elsevier
In this context, four specimens, ie (i) circumferentially notched cylindrical torsion (CNCT),(ii)
circumferentially notched cylindrical direct tension (CNCDT),(iii) edge notch disc bend …

Analysis of the influence of a natural fracture network on hydraulic fracture propagation in carbonate formations

Z Liu, M Chen, G Zhang - Rock mechanics and rock engineering, 2014 - Springer
A new experimental model has been designed to simulate the influence of a natural fracture
network on the propagation geometry of hydraulic fractures in naturally fractured formations …

[HTML][HTML] Prediction of mode I fracture toughness of rock using linear multiple regression and gene expression programming

B Afrasiabian, M Eftekhari - Journal of Rock Mechanics and Geotechnical …, 2022 - Elsevier
Prediction of mode I fracture toughness (K IC) of rock is of significant importance in rock
engineering analyses. In this study, linear multiple regression (LMR) and gene expression …

[HTML][HTML] Role of natural fractures in damage evolution around tunnel excavation in fractured rocks

Q Lei, JP Latham, J Xiang, CF Tsang - Engineering Geology, 2017 - Elsevier
This paper studies the role of pre-existing fractures in the damage evolution around tunnel
excavation in fractured rocks. The length distribution of natural fractures can be described by …

Role of bedding plane in the relationship between Mode-I fracture toughness and tensile strength of shale

X Shi, Y Zhao, NN Danesh, X Zhang, T Tang - Bulletin of Engineering …, 2022 - Springer
Shale exhibits strong anisotropy due to the sedimentary environment and pre-existing micro-
fractures. It is of great significance to characterize the bedding-plane-induced fracture …

Experimental study of the effect of liquid nitrogen pretreatment on shale fracability

S Han, Y Cheng, Q Gao, C Yan, Z Han - Journal of Natural Gas Science …, 2018 - Elsevier
When cryogenic liquid nitrogen (LN 2) comes into contact with deep reservoirs, it will bring
about serious thermal damage to rock pore structure. Therefore, LN 2 pretreatment on …

[HTML][HTML] Rock fracture initiation under deep extreme in situ conditions: A review

Q Zhou, Z Zhu, R Zhang, Z Fan, X Nie, W Gao… - Journal of Rock …, 2024 - Elsevier
Rock fracture toughness is a critical parameter for optimizing reservoir stimulation during
deep resource extraction. This index characterizes the in situ resistance of rocks to fracture …

An improved fracability-evaluation method for shale reservoirs based on new fracture toughness-prediction models

J Yuan, J Zhou, S Liu, Y Feng, J Deng, Q Xie, Z Lu - SPE Journal, 2017 - onepetro.org
Fracability characterizes the ease of gas shale to form a complex-fracture network with
hydraulic-fracturing treatments. Previous methods of fracability evaluation take into account …