Results 11 to 20 of about 21,023 (296)

Friction Challenge in Hydraulic Fracturing [PDF]

open access: yesLubricants, 2022
Hydraulic fracturing has become one of the most popular techniques for exploring sustainable energy sources. However, friction is associated with the entire fracturing process, presenting significant challenges for development.
Yanbao Guo   +6 more
doaj   +2 more sources

Investigation of the Hydraulic Fracture Propagation Law of Layered Rock Strata Using the Discrete-Particle Model

open access: yesGeofluids, 2022
Hydraulic fracturing is a rock structure transformation method that significantly weakens the mechanical properties of the hard roof strata. Considering the poor hydraulic fracturing effect of special structure such as composite layered rock, this paper ...
Xin Zhang, Mei Yin
doaj   +1 more source

Experimental Study on Hydraulic Fracturing of Laminated Sandstone Combined with Industrial CT and L-NMR

open access: yesGeofluids, 2022
Hydraulic fracturing in the immediate roof is a suitable method to increase the permeability of soft outburst coal seam. In this work, the propagation law of hydraulic fractures in laminated virgin sandstone and the change of microstructure after ...
Kai Wang   +6 more
doaj   +1 more source

Hydraulic fracturing technology with directional boreholes for strata control in underground coal mines and its application

open access: yesMeitan kexue jishu, 2023
The application of hydraulic fracturing technology on rock fracturing for hard and complete roof, and destressing for roadways with high stresses is increasingly widespread.
KANG Hongpu   +4 more
doaj   +1 more source

Seismo-hydromechanical interaction during in-situ hydraulic fracturing experiments [PDF]

open access: yes, 2020
PhD, Université de Neichâtel, Centre d'hydrogéologie et de géothermieHydraulic fracturing is a common technique used in a variety of fields like civil and mining engineering, oil & gas and geothermal industry.
Dutler, Nathan
core   +2 more sources

A Study on Stress Redistribution of Roadway Sidewall after Hydraulic Fracturing in Coal Bumps Prevention

open access: yesShock and Vibration, 2022
Hydraulic fracturing is an effective mean to prevent coal bumps in deep coal mining. The calculation of stress redistribution of coal sidewall after hydraulic fracturing can evaluate the fracturing effect and provide a reference for the hydraulic ...
Yanchun Yin   +4 more
doaj   +1 more source

Hydraulic fracturing characteristics of laminated shale and its enlightenment to fracture pressure

open access: yesMeitan kexue jishu, 2023
Hydraulic fracturing is a common reservoir reconstruction technology in shale gas production. Accurate prediction of hydraulic fracture break pressure is of great significance to on-site fracturing construction.
Zhonghui SHEN   +4 more
doaj   +1 more source

Determination of stress state in deep subsea formation by combination of hydraulic fracturing in situ test and core analysis: A case study in the IODP Expedition 319 [PDF]

open access: yes, 2013
[1] In situ test of hydraulic fracturing (HF) provides the only way to observe in situ stress magnitudes directly. The maximum and minimum horizontal stresses, SHmax and Shmin, are determined from critical borehole pressures, i.e., the reopening pressure
Ito, Takatoshi   +21 more
core   +1 more source

Technological progress and prospects of reservoir stimulation

open access: yesPetroleum Exploration and Development, 2019
Through reviewing the development history of reservoir hydraulic fracturing technology, this paper demonstrated the latest research progress at home and abroad and summarized six technical gaps between China and the world, that is fracture propagation ...
Qun LEI   +9 more
doaj   +1 more source

Interference fracturing: Nonuniform distributions of perforation clusters that promote simultaneous growth of multiple hydraulic fractures [PDF]

open access: yes, 2015
One of the important hurdles in horizontal-well stimulation is the generation of hydraulic fractures (HFs) from all perforation clusters within a given stage, despite the challenges posed by stress shadowing and reservoir variability.
Bunger, AP, Peirce, AP
core   +1 more source

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