Results 21 to 30 of about 57,900 (317)

Hydraulic fracture propagation in naturally fractured reservoirs: Complex fracture or fracture networks [PDF]

Journal of Natural Gas Science and Engineering, 2019
Understanding the behavior of fluid-driven hydraulic fracture in naturally fractured reservoirs is crucial in the development of geothermal energy and unconventional reservoirs. This study presents a fully-coupled numerical model to investigate hydraulic propagation in naturally fractured reservoirs, along with a comprehensive discussion on field ...
openaire   +2 more sources

Fractures of the distal radius (Colles' fracture) [PDF]

Sao Paulo Medical Journal, 2007
CONTEXT AND OBJECTIVE: Although Colles' fracture is a common clinical situation for the orthopedist, we did not find any information in the literature that would allow safe decision-making on the best treatment for each fracture type. The aim of the present study was to investigate Brazilian orthopedists' opinions regarding the main aspects of ...
Belloti, João Carlos, Santos, João Baptista Gomes dos, Atallah, Álvaro Nagib, Albertoni, Walter Manna, Faloppa, Flavio   +4 more
openaire   +5 more sources

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

Fem Analysis of Proppant Sticking in Rock Cracks

Archives of Civil Engineering, 2018
The problem of effective gas extraction from Polish shale rocks is an interesting research subject for scientists. A properly selected proppant, which protects cracks from closing during the fracturing process, inestimably contributes to an increase of ...
Kwietniewski M., Miedzińska D., Niezgoda T.   +2 more
doaj   +1 more source

Fracture patterns in midshaft clavicle fractures [PDF]

Acta Orthopaedica Belgica, 2021
Current classifications of midshaft clavicle fractures are based on radiography. The aim of the study was to evaluate the fracture pattern of clavicle fractures using 3-dimensional computed tomography (3D CT). A retrospective analysis was performed on CT scans of 65 acute clavicle fractures.
Tongel, Alexander Van (author), Wilde, Lieven De (author), Shimamura, Yasunori (author), Sijbers, Jan (author), Huysmans, T. (author)   +4 more
openaire   +6 more sources

Seismic studies of the unevenness of open fracturing and inhomogeneity of the fluid saturation in the geological environment for optimal development of oil and gas fields

Georesursy, 2018
The distribution of fracturing and the type of fluid saturation in the geological environment, along with its structure, is the most important information for optimal development of oil and gas fields, including their search, exploration and development.
O.L. Kuznetsov, I.A. Chirkin, S.I. Arutyunov, E.G. Rizanov, V.P. Dyblenko, V.V. Dryagin   +5 more
doaj   +1 more source

Field experiments and main understanding of shale oil hydraulic fracturing

Frontiers in Earth Science
To understand the key processes of hydraulic fracturing in shale oil reservoirs, such as artificial fracture initiation and extension, proppant transportation and settlement, and the influencing factors of post-fracture production, many hydraulic ...
Mengyun Zhao, Mengyun Zhao, Mengyun Zhao
doaj   +1 more source

Determination of stress state in deep subsea formation by combination of hydraulic fracturing in situ test and core analysis: A case study in the IODP Expedition 319

, 2013
[1] In situ test of hydraulic fracturing (HF) provides the only way to observe in situ stress magnitudes directly. The maximum and minimum horizontal stresses, SHmax and Shmin, are determined from critical borehole pressures, i.e., the reopening pressure
Ito, Takatoshi, David F. Boutt, Ito, Hisao, Byrne, Timothy, Takatoshi Ito, Doan, Mai-Linh, Funato, Akio, Yasuyuki Kano, Lisa C. McNeill, Mai‐Linh Doan, Demian Saffer, McNeill, Lisa C., Saffer, Demian, Timothy Byrne, Lin, Weiren, Boutt, David F., Kano, Yasuyuki, Moe, Kyaw Thu, Kyaw Thu Moe, Akio Funato, Hisao Ito, Weiren Lin   +21 more
core   +1 more source

Research on the timing of polymer flooding oil and water well fracturing [PDF]

E3S Web of Conferences
Fracturing technology is the main measure to increase production and injection in oilfield production. With the gradual expansion of the scale of polymer flooding, the proportion of fractured Wells also increases year by year.
Zhang Wei
doaj   +1 more source

Fracture of the Patella [PDF]

Southern Medical Journal, 1910
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openaire   +1 more source