Results 71 to 80 of about 849 (184)

Consistent treatment of shear failure in embedded discrete fracture models using XFVM

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 48, Issue 4, Page 951-973, March 2024.
Abstract Understanding deformations and fluid flow in fractured rocks is of central importance for many subsurface flow applications. Thus, numerical frameworks are needed that capture the coupled mechanical and hydraulic behaviour, including scenarios with complex fracture networks.
Giulia Conti   +3 more
wiley   +1 more source

The investigation of fracture pattern effect on fluid transport and production prediction in M field

open access: yesEnergy Exploration & Exploitation, 2021
Due to the discontinuity and multi-scale of fracture porous media (FPM), fluid transport in the naturally fractured reservoir (NFR) is more complex than in the conventional reservoirs.
Jinlin Zhang   +5 more
doaj   +1 more source

Flow Simulation and Characterization of Fracture Systems Using Fast Marching Method and Novel Diagnostic Plots [PDF]

open access: yes, 2019
Recently, the industrial trend of hydraulic fracturing is reducing the cluster spacing while increasing the fluid and proppant usage, which often generates complex fracture networks.
Xue, Xu
core  

Modeling Default Probability via Structural Models of Credit Risk in Context of Emerging Markets [PDF]

open access: yes, 2017
The chapter is focused on the structural models of credit risk introducing basic concepts of risk-neutral world, as well as models and different options for the credit risk quantification. An important part is also the introduction of structural approach
Kollar, Boris, Kovacova, Maria
core   +2 more sources

Antiacne Gel Containing Aloe vera and Clindamycin Phosphate: Design, Characterization, and Optimization Using Response Surface Methodology

open access: yesInternational Journal of Polymer Science, Volume 2024, Issue 1, 2024.
Clindamycin phosphate is a topical antibiotic agent used to treat acne vulgaris, while Aloe vera has both antimicrobial and anti‐inflammatory properties. The current study is aimed at formulating an antiacne gel with antioxidant and antimicrobial effects. The antiacne gels were prepared by using polymer HPMC K15M by cold dispersion method.
Tayyaba Rana   +12 more
wiley   +1 more source

Flow behavior of hydraulic fractured tight formations considering Pre-Darcy flow using EDFM

open access: yesFuel, 2019
Abstract For tight reservoirs/formations, flow in fracture and matrix obey different flow patterns. Pre-Darcy flow always exists in low permeability subsurface porous media while Darcy flow can be applied in fracture. It is an outstanding challenge to understand the flow behavior coupling different flow mechanisms. As numerical simulation can predict
Jianchun Xu   +3 more
openaire   +2 more sources

DEVELOPMENT OF EFFICIENTLY COUPLED FLUID FLOW AND GEOMECHANICS MODEL FOR HIGHLY FRACTURED RESERVOIRS [PDF]

open access: yes, 2020
Number of unconventional developments have increased greatly in the recent years to meet the global demand on hydrocarbon usages. Completion work can be very challenging due to complex characteristic of unconventional reservoir, which directly affects ...
Sangnimnuan, Anusarn
core  

Thermal-hydraulic-mechanical-chemical multiphysics coupling for geothermal energy development [PDF]

open access: yes
As asustainable and renewable energy source, geothermal energy holds significant potential for addressing global energy demands and mitigating climate change.
Huang, Haikui   +4 more
core   +1 more source

Macroscale Gas–Water Two‐Phase Transport Simulation in Shales considering Nanomicroscale Effects

open access: yesInternational Journal of Energy Research, Volume 2024, Issue 1, 2024.
As an effective approach to evaluate shale gas production, macroscale numerical simulations have been conducted; however, multiscale storage space and complex gas–water two‐phase transport mechanisms are not systematically considered. To deal with this, a rigorous cross‐scale gas–water two‐phase transport simulation method that considers the pore, core,
Dongying Wang   +6 more
wiley   +1 more source

An Integrally Embedded Discrete Fracture Model with a Semi-Analytic Transmissibility Calculation Method

open access: yesEnergies, 2018
The embedded discrete fracture model (EDFM) combines the advantages of previous numerical models for fractured reservoirs, achieving a good balance between calculation cost and simulation accuracy.
Renjie Shao, Yuan Di
doaj   +1 more source

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