A review of laboratory studies and theoretical analysis for the interaction mode between induced hydraulic fractures and pre-existing fractures

Q Zhang, XP Zhang, W Sun - Journal of Natural Gas Science and …, 2021 - Elsevier
Hydraulic fracturing techniques have been widely used to create complex fracture network in
unconventional reservoirs. The complexity of hydraulic fracture is significantly influenced by …

Deciphering the formation period and geological implications of shale tectonic fractures: a mini review and forward-looking perspectives

H Li - Frontiers in Energy Research, 2023 - frontiersin.org
In complex geological areas, the chronology of tectonic fracture formation is pivotal for the
conservation and enhancement of shale gas reservoirs. These fractures, evolving over …

Experimental and numerical simulation technique for hydraulic fracturing of shale formations

L Huang, X Liao, M Fan, S Wu… - Advances in Geo …, 2024 - ager.yandypress.com
Hydraulic fracturing is crucial for extracting shale oil and gas. This technique involves
creating fractures in rock formations to enhance reservoir development efficiently. Due to the …

Hydraulic fracture propagation at weak interfaces between contrasting layers in shale using XFEM with energy-based criterion

JN Zhang, H Yu, Q Wang, CS Lv, C Liu, F Shi… - Journal of Natural Gas …, 2022 - Elsevier
The propagation behavior of hydraulic fractures (HFs) in unconventional shale formation is
influenced by anisotropic fracture toughness and interaction with existing nature fractures …

Hydraulic fracture vertical propagation mechanism in interlayered brittle shale formations: an experimental investigation

J Zhang, Q Yu, Y Li, Z Pan, B Liu - Rock Mechanics and Rock Engineering, 2023 - Springer
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 …

Characteristics of fractures stimulated by supercritical carbon dioxide fracturing in shale based on acoustic emission monitoring

S Wu, H Ge, T Li, X Wang, N Li, Y Zou, K Gao - International Journal of …, 2022 - Elsevier
In recent years, supercritical carbon dioxide (SC–CO 2) has been attempted in hydraulic
fracturing in shale reservoirs as a new type of fracturing tool to overcome the drawback of …

Influence of slip and permeability of bedding interface on hydraulic fracturing: A numerical study using combined finite-discrete element method

S Wu, K Gao, Y Feng, X Huang - Computers and Geotechnics, 2022 - Elsevier
Shale is a common layered sedimentary rock containing bedding interfaces in oil and gas
reservoirs. In hydraulic fracturing of shales, the fracturing fluid could flow into bedding …

Numerical investigation of the fracture network morphology in multi-cluster hydraulic fracturing of horizontal wells: A DDM-FVM study

CX Yang, LP Yi, ZZ Yang, XG Li - Journal of Petroleum Science and …, 2022 - Elsevier
Hydraulic fracturing is the most effective method to enhance the recovery of unconventional
oil and gas via the formation of complex connected fracture networks. In this study, a pseudo …

Investigating the propagation of multiple hydraulic fractures in shale oil rocks using acoustic emission

S Wu, K Gao, X Wang, H Ge, Y Zou, X Zhang - Rock Mechanics and Rock …, 2022 - Springer
The propagation of multiple fractures plays a significant role in the effectiveness of hydraulic
stimulation in shale oil reservoirs. Previous studies reported that the laminations and …

Coupled thermo-hydro-mechanical simulation of hydraulic fracturing in deep reservoirs using finite-discrete element method

M Sharafisafa, Z Aliabadian, A Sato, L Shen - Rock Mechanics and Rock …, 2023 - Springer
Hydraulic fracturing (HF) is one of the most effective stimulation techniques to enhance
reservoir permeability. The efficiency of an HF fluid injection depends on the pre-existing …