Results 11 to 20 of about 44,771 (263)

Void formation and roughening in slow fracture [PDF]

Physical Review E, 2005
15 pages, 20 ...
Afek, I, Bouchbinder, E, Katzav, E, Mathiesen, J, Procaccia, I   +4 more
openaire   +4 more sources

Pattern Formation and Selection in Quasistatic Fracture [PDF]

Physical Review Letters, 2000
Fracture in quasi-statically driven systems is studied by means of a discrete spring-block model. Developed from close comparison with desiccation experiments, it describes crack formation induced by friction on a substrate. The model produces cellular, hierarchical patterns of cracks, characterized by a mean fragment size linear in the layer thickness,
Leung, Kwan-tai, Neda, Zoltan
openaire   +3 more sources

Development and Application of Dynamic Fracture Plugging Test Device

Shiyou jixie, 2023
Due to the abnormal changes in formation pressure and wellbore pressure, the fracture morphology of stress sensitive fractured formations is complex and variable, and the problem of loss of drilling fluid is even more serious; in such a case, it is ...
Ma Chengyun, Dou Yihua, Deng Jingen, Feng Yongcun, Ai Erxin, Zhao Kai, Hui Cheng   +6 more
doaj  

A Novel Temperature Prediction Model Considering Stress Sensitivity for the Multiphase Fractured Horizontal Well in Tight Reservoirs

Energies, 2021
An accurate temperature profile of the multi-stage fractured horizontal well is the foundation of production profile interpretation using distributed temperature sensing.
Yonggang Duan, Ruiduo Zhang, Mingqiang Wei   +2 more
doaj   +1 more source

Study on the Numerical Simulation of Array Sonic Logging Responses and Their Velocity Dispersion Characteristics in Fractured Formation

CT Lilun yu yingyong yanjiu
To understand the effects of fractured formation on the responses of array sonic logging, the wave propagation of array acoustic logging was simulated based on the staggered grid finite difference method and poroelastic theory.
Hui LUO, Jinsong SHEN, Wenxue ZHANG, Shuai SUN, Zhe’an ZHANG, Qian WANG, Xuemin LIN   +6 more
doaj   +1 more source

Regularities in the development of fracturing zones in rocks of the sedimentary cover of Western Siberia, based on the results of the application of the OilRiver technology, horizontal well logging and hydrofracturing data

Georesursy, 2018
The article presents known results of theoretical and experimental works, describing the regularities of the formation of fractured-block structures in platform areas.
E.D. Glukhmanchuk, V.V. Krupitskiy, A.V. Leontievskiy   +2 more
doaj   +1 more source

Productivity of unconventional Senon reservoirs in the north of West Siberia

Известия высших учебных заведений: Нефть и газ, 2023
At the current stage of geological exploration, hydrocarbon deposits have been discovered in complex reservoirs that are "unconventional" in nature.
Ya. I. Gladysheva
doaj   +1 more source

Wnt1 Boosts Fracture Healing by Enhancing Bone Formation in the Fracture Callus

Journal of Bone and Mineral Research, 2020
Abstract Despite considerable improvement in fracture care, 5%–10% of all fractures still heal poorly or result in nonunion formation. Therefore, there is an urgent need to identify new molecules that can be used to improve bone fracture healing.
Melanie Haffner-Luntzer, Deniz Ragipoglu, Mubashir Ahmad, Astrid Schoppa, Lena Steppe, Verena Fischer, Julia Luther, Timur Yorgan, Ernesto Bockamp, Michael Amling, Thorsten Schinke, Anita Ignatius   +11 more
openaire   +3 more sources

Analytical and numerical solutions of flow in and around a fracture within a porous media: Application to equivalent permeability estimation

Journal of Applied Science and Engineering
Equivalent permeability is the most important parameter to estimate the total flow transported by a fractured geological formation. The inclusion-based effective medium model has been widely used to estimate this parameter.
An Hai Nguyen
doaj   +1 more source

“Detection and characterization of fractures in the Eocene Thebes formation using conventional well logs in October field, Gulf of Suez, Egypt”

Egyptian Journal of Petroleum, 2022
Fractures are one of the most prevalent and important geological features in petroleum exploration and production, as they have a substantial impact as conduits for hydrocarbon flow and improve the overall permeability of the formation.
M. Gamal, A.A. El-Araby, A.N. El-Barkooky, Alaa Hassan   +3 more
doaj   +1 more source