Results 11 to 20 of about 5,095,342 (309)

Pump-stopping pressure drop model considering transient leak-off of fracture network

Petroleum Exploration and Development, 2023
By introducing the coupling flow expressions of main fracture-matrix, secondary fracture-matrix and main fracture-secondary fracture into the traditional main fracture material balance equation, the “main fracture—secondary fracture—matrix” leak-off ...
Fei WANG, Jiaxin XU, Tong ZHOU, Shicheng ZHANG   +3 more
doaj   +2 more sources

Service availability and readiness for hip fracture care in low- and middle-income countries in South and Southeast Asia [PDF]

, 2023
Aims: The aim of this study was to describe the current pathways of care for patients with a fracture of the hip in five low- and middle-income countries (LMIC) in South Asia (Nepal and Sri Lanka) and Southeast Asia (Malaysia, Thailand, and the ...
Joon-Kiong Lee, Dipendra Pandey, Matthew Costa, Irewin Tabu, On behalf of FERMAT collaborators and the Global Fragility Fracture Network Hip Fracture Audit Special Interest Group, En L. Goh, Tanawat Amphansap, Duncan Appelbe, Nicholas Parsons, Sarath Lekamwasam, Pandey, Dipendra, Parsons, Nicholas, Lee, Joon-Kiong, Tabu, Irewin, Lekamwasam, Sarath, Amphansap, Tanawat, Goh, En L., Appelbe, Duncan, Costa, Matthew   +18 more
core   +2 more sources

Improvements to the Fracture Pipe Network Model for Complex 3D Discrete Fracture Networks [PDF]

Water Resources Research, 2020
Abstract Fractures widely present in the subsurface and play a critical role in the fluid flow processes in porous media. The Fracture Pipe Network Model (FPNM) is an efficient method to represent and calculate fluid flow properties as a particular part of Discrete Fracture Networks (DFNs) method compared to direct numerical ...
Chenhui Wang, Kejian Wu, Gilbert George Scott   +2 more
openaire   +2 more sources

The Open-Fracture Patient Evaluation Nationwide (OPEN) study : epidemiology of open fracture care in the UK. [PDF]

, 2022
AIMS: Understanding of open fracture management is skewed due to reliance on small-number lower limb, specialist unit reports and large, unfocused registry data collections. To address this, we carried out the Open Fracture Patient Evaluation Nationwide (
Trompeter, A, Hadfield, JN, Walker, R, Bretherton, CP, Open Fracture Patient Evaluation Nationwide (OPEN) collaborators, Eardley, WGP, Gray, A, Omogbehin, TS, Brookes, C, Christopher P. Bretherton, Eardley, William G. P., William G. P. Eardley, Reece Walker, Brookes, Charlotte, Omogbehin, Tomisin S., Tomisin S. Omogbehin, Trompeter, Alex, Charlotte Brookes, Alex Trompeter, Andrew Gray, Walker, Reece, Bretherton, Christopher P., Gray, Andrew, James N. Hadfield, Hadfield, James N.   +24 more
core   +3 more sources

Fracture networks in sea ice [PDF]

Frontiers in Physics, 2014
Fracturing and refreezing of sea ice in the Kara sea are investigated using complex networkanalysis. By going to the dual network, where the fractures are nodes and their intersectionslinks, we gain access to topological features which are easy to measure and hence comparewith modeled networks.
Jonas Nesland Vevatne, Eivind eRimstad, Alex eHansen, Reinert eKorsnes, Sigmund Mongstad Hope, Sigmund Mongstad Hope   +5 more
openaire   +3 more sources

Quantum algorithms for geologic fracture networks

Scientific Reports, 2023
AbstractSolving large systems of equations is a challenge for modeling natural phenomena, such as simulating subsurface flow. To avoid systems that are intractable on current computers, it is often necessary to neglect information at small scales, an approach known as coarse-graining.
Jessie M. Henderson, Marianna Podzorova, M. Cerezo, John K. Golden, Leonard Gleyzer, Hari S. Viswanathan, Daniel O’Malley   +6 more
openaire   +4 more sources

Effect of Pre-Damage on the Fracture Energy of Double-Network Hydrogels [PDF]

, 2023
Double-network (DN) hydrogels are tough soft materials and the high fracture resistance can be attributed to the formation of a large damage zone (internal fracture of the brittle first network) around the crack tip.
Yong, Zheng, Yiru, Wang, Tasuku, Nakajima, Jian Ping, Gong   +3 more
core   +2 more sources

A PDE-constrained optimization formulation for discrete fracture network flows [PDF]

, 2013
We investigate a new numerical approach for the computation of the 3D flow in a discrete fracture network that does not require a conforming discretization of partial differential equations on complex 3D systems of planar fractures.
Pieraccini, Sandra, Berrone, Stefano, Scialo', Stefano   +2 more
core   +1 more source

Application and Optimization for Network-Fracture Deep Acidizing Technique of Fractured Carbonate Reservoirs

, 2022
The fractured carbonate rock reservoir is widespread in Sichuan Basin, and the characteristics of different areas are different. The development of natural fractures is varying degrees, lost circulations occur frequently, and the formation heterogeneity ...
Mingwei Wang, Song Li, Gensheng Ni, Yu Fu, Wen Wu, Wen Zhou, Tao Li   +6 more
core   +1 more source

Reactivation of natural fractures network by hydraulic fracturing [PDF]

E3S Web of Conferences, 2020
Modelling the process of induced fracture initiation, propagation and interaction with natural fractures is a very challenged task. Significant progress has been made in recent years in the development of complex fracture models to address the needs for more suitable design tools than the conventional planar fracture models.
L. L. Alvarez, Leila Brunet de Sá Beserra, Leonardo José do Nascimento Guimarães, Osvaldo L. Manzoli   +3 more
openaire   +2 more sources