Results 131 to 140 of about 57,900 (317)

Could Shale Gas Become a Reliable Energy Source for Europe and Romania? [PDF]

open access: yesGlobal Economic Observer, 2015
While shale gas and oil is a success story in USA and Canada where production has considerably increased in the last five years the situation is quite different in Europe where exploration and production activities are quite low and prospects are not ...
MARIANA PAPATULICĂ, PETRE PRISECARU
doaj  

Explicit-implicit XFEM for Hydraulic Fracturing with emphasis on transport models on curved crack surfaces

open access: yes, 2019
The eXtended Finite Element Method (XFEM) has developed to a standard tool in fracture mechanics. The method enriches the approximation space such that inner-element cracks are considered without loss of accuracy.
Fries, Thomas-Peter
core  

Green Fracturing Technology of Shale Gas: LPG Waterless Fracturing Technology and its Feasibility in China

open access: yes, 2017
As a kind of water saving and green fracturing methodology, the innovative LPG fracturing fluid system that is developed by Gasfrac is known for its low density, viscosity and surface tension, making satisfying achievements in McCully Gasfield in Canada.
L.. Bingshan   +4 more
core   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

A variational phase field model of hydraulic fracturing

open access: yes, 2019
Since their inception in the mid-90's, variational phase-field models of fracture [1] have steadily gained popularity. One of their strengths, the ability to handle complex topologies with unknown crack paths and the interaction between multiple cracks ...
Tanne, Erwan
core  

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

Hydraulic fracturing and shale gas extraction

open access: yes
Master of ScienceDepartment of Chemical EngineeringJames H. EdgarIn the past decade the technique of horizontal drilling and hydraulic fracturing has been improved so much that it has become a cost effective method to extract natural gas from shale ...
Klein, Michael
core   +1 more source

Effective and Sustainable Hydraulic Fracturing

open access: yes, 2013
This book comprises the proceedings for the International Conference for Effective and Sustainable Hydraulic Fracturing (HF2013) which was held 20-22 May 2013 in Brisbane, Australia. The conference goal was to advance hydraulic fracturing technology that

core   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

3D Simulation of Stimulated Rock Volume Evolution during Hydraulic Fracturing

open access: yes, 2019
Hydraulic fracturing in naturally fractured rocks often leads to the creation of a stimulated zone of enhanced permeability in which the target formation is irreversibly deformed through shear dilation of natural fractures, plastic deformation, and ...
Sarvaramini, Erfan
core  

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