Results 51 to 60 of about 2,063,981 (308)

Stable Dispersion of Coal Fines during Hydraulic Fracturing Flowback in Coal Seam Gas Reservoirs—An Experimental Study [PDF]

open access: yesEnergy & Fuels, 2020
In subterranean coal seam gas (CSG) reservoirs, massive amounts of small-sized coal fines are released during the production and development stages, especially during hydraulic fracturing stimulati...
Faisal Ur Rahman Awan   +7 more
semanticscholar   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

Advances in Laboratory-Scale Hydraulic Fracturing Experiments

open access: yesAdvances in Civil Engineering, 2020
Hydraulic fracturing has been widely applied to stimulate the natural gas and oil production from unconventional reservoirs. To optimize the design of hydraulic fracturing in this application, an accurate estimation of the initiation and propagation of ...
Yelin Qian   +5 more
doaj   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Experimental study on propagation of hydraulic fracture in volcanic rocks using industrial CT technology

open access: yesPetroleum Exploration and Development, 2013
To understand the planar and three-dimensional geometry of hydraulic fractures in volcanic rocks, a hydraulic fracturing simulation experiment was conducted using the large-scale triaxial hydraulic fracturing test system in laboratory.
Lichun JIA   +7 more
doaj   +1 more source

A multi-perforation staged fracturing experimental study on hydraulic fracture initiation and propagation

open access: yesEnergy Exploration & Exploitation, 2020
Hydraulic fracture initiation and propagation are extremely important on deciding the production capacity and are crucial for oil and gas exploration and development.
Jianguang Wei   +5 more
doaj   +1 more source

Bone‐Inspired Recyclable Composites for Damage‐Tolerant Circular Materials

open access: yesAdvanced Functional Materials, EarlyView.
Bone‐inspired architected composites are developed by combining osteon‐like reinforcements with a recyclable Elium thermoplastic matrix. The hierarchical architecture redirects cracks and promotes energy dissipation, while enabling recovery of intact, aligned, load‐bearing reinforcement units that retain their original stiffness, revealing a route ...
Alessandro Stagni   +4 more
wiley   +1 more source

A coupled simulation method of hydraulic fracturing for relieving mining pressure under hard roof based on DEM method

open access: yesMeitan xuebao
The technology of pressure relief through hydraulic fracturing method in hard roof has successfully addressed the disaster risk caused by the difficult caving of thick-hard roof strata in coal mines.
Hongwei ZHANG   +8 more
doaj   +1 more source

Toward Pore‐Engineered 3D‐Printed Materials for Sorption Water Harvesting, Interfacial Evaporation, and Radiative Cooling

open access: yesAdvanced Materials, EarlyView.
Water harvesting, radiative cooling, and interfacial solar evaporation are fundamentally governed by coupled heat, mass, and light transport processes. These processes are mediated by pore architecture, including pore size, connectivity, and hierarchical organization.
Dejan J. Trajkovski   +5 more
wiley   +1 more source

Numerical simulation and engineering application of comb-shaped directional long borehole hydraulic fracturing under different arrangement of holes

open access: yesMeikuang Anquan, 2021
In order to avoid the blindness of the hydraulic fracturing of the directional long borehole in coal mine 2130 of Xinjiang Coking Coal Group, and to accurately grasp the extension and expansion of hydraulic fracturing under different hole layout methods,
LI Wen, WANG Guanghong, OU Cong, LI Shourui, LI Xiangwang, ZHAO Huajun, LIU Jianhua, ZHAO Bi
doaj   +1 more source

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