Results 31 to 40 of about 1,099 (184)

A Coupled Extended Finite Element–Cohesive Zone Model for Hydraulic Fracture Propagation Under Poroelastic Effects Across Different Propagation Regimes

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Numerical simulation of hydraulic fracturing remains challenging due to the strong coupling between geomechanics and fluid flow when modelling multiple physical mechanisms of rock deformation, fracture evolution and fluid leak‐off. This study develops a coupled hydraulic fracture propagation framework that combines the extended finite element ...
Ran Tao, Juliana Y. Leung, Samer Adeeb
wiley   +1 more source

Effect of Sintering Temperature on Property of Low-Density Ceramic Proppant Adding Coal Gangue

open access: yesMedžiagotyra, 2019
Calcined flint clay (45.6 wt.% Al2O3) and solid waste coal gangue were used to prepare low-density ceramic proppant by solid state sintering method. The density and breakage ratio of the ceramic proppant were systematically investigated as a function of ...
Jianying HAO   +5 more
doaj   +1 more source

Thermo‐Hydrodynamic Processes of Microparticles in Fractures: A CFD–DEM Approach

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Controlling fracture permeability plays a critical role in subsurface energy applications, particularly in geothermal energy production and enhanced carbon sequestration, where regulating fluid flow is essential. The use of microcapsules has become a promising solution to enhance fracture permeability by providing a controlled sealing ...
Hoai Thanh Nguyen, Pania Newell
wiley   +1 more source

Experimental investigation of proppant clustering in intersected fractures

open access: yesJournal of Petroleum Exploration and Production Technology, 2021
This paper investigates the dynamics of proppant agglomerations during flow and transport within fractures intersected at the angles typical for the joint of pre-existing and newly formed fractures.
Wenpei Ma, Ingrid Tomac
doaj   +1 more source

Mechanisms of Suspended Microparticle Clogging in Constricted Channels: Insights From a Lattice Boltzmann‐Discrete Element Simulation

open access: yesWater Resources Research, Volume 62, Issue 4, April 2026.
Abstract The migration‐clogging‐sealing process of microparticle suspensions in constricted channels is highly relevant to geotechnical, hydraulic, and environmental engineering. In this study, a coupled lattice Boltzmann‐discrete element method is employed, incorporating dense‐particle corrections into the classical partially saturated method and ...
Siyuan Wang   +7 more
wiley   +1 more source

Proppant Fracture Conductivity With High Proppant Loading and High Closure Stress [PDF]

open access: yesSPE Hydraulic Fracturing Technology Conference, 2012
Abstract Ultra-deepwater reservoirs are important unconventional reservoirs that have the potential to produce billions of barrels of hydrocarbons, and are usually high pressure and high temperature with relatively high permeability. One major challenge of an unconventional, ultra-deepwater reservoir is pumping an effective and robust ...
M. Rivers, D. Zhu, A.D. Hill
openaire   +1 more source

Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1339-1352, March 2026.
Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang   +4 more
wiley   +1 more source

Impact of Inter‐Well Stress Interference on Multifracture Propagation in Tight Reservoirs

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 347-363, January 2026.
This study presents a integrated computational‐experimental framework for modeling complex fracture propagation. Using a novel cell‐based fracture element approach with defined geometric and mechanical parameters, we simulate crack paths under varying stress conditions (e.g., SH‐Sh = 130 psi).
Xiangwu Bai   +3 more
wiley   +1 more source

Experimental Study on Influence of Sporosarcina ureae Bacteria on Mechanical and Fresh Properties of Self‐Healing Concrete With Focus on Elemental/Microstructural Analysis

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
Concrete is the most widely used construction material globally, but it is inherently prone to various factors such as environmental conditions, mechanical stress, and chemical reactions. Stresses such as cracks can significantly reduce the lifespan of concrete structures, leading to increased maintenance costs and environmental impact.
Jesse Oloimutie Pereso   +3 more
wiley   +1 more source

Numerical simulation study on the ultimate injection concentration and injection strategy of a proppant in hydraulic fracturing

open access: yesFrontiers in Energy Research
The injection volume and the distribution of a proppant inside a fracture have a direct impact on the stimulation effect of fracturing. In this study, a new proppant transport model was established based on the Euler method.
Jianfa Wu   +5 more
doaj   +1 more source

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