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pro vyhledávání: '"N. Melkoumian"'
Akademický článek
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Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 7, Iss 5, Pp 519-531 (2015)
At several mineral exploration drilling sites in Australia, weakly consolidated formations mainly consist of sand particles that are poorly bonded by cementing agents such as clay, iron oxide cement or calcite. These formations are being encountered
Externí odkaz:
https://doaj.org/article/3fc6bd3c73ed49d2b1876fa285a2ecf1
Akademický článek
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Publikováno v:
Rock Mechanics and Rock Engineering. 54:191-218
Rock masses contain pre-existing cracks. These cracks are not usually considered when predicting the maximum injection pressure, i.e. the breakdown pressure, in hydraulic fracture stimulations. The conventional approach to predict breakdown pressure
Autor:
Mikhail Zarubin, Venera Zarubina, Larissa Statsenko, N. Melkoumian, Pavel Spiridonov, Olga Salykova
Publikováno v:
Sustainability, Vol 13, Iss 6971, p 6971 (2021)
Sustainability
Volume 13
Issue 12
Sustainability
Volume 13
Issue 12
This research article presents a software module for the environmental impact assessment (EIA) of open pit mines. The EIA software module has been developed based on the comprehensive examination of both country-specific (namely, Kazakhstan) and curr
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 95:48-61
The breakdown pressure is an important parameter that influences the hydraulic fracturing process of the rock. This paper presents a new approach for the prediction of the breakdown pressure in hydraulic fracturing based on the theory of critical dis
Publikováno v:
Engineering Fracture Mechanics. 166:218-233
Hydraulic fracturing of rocks has various engineering applications. However, there has been limited research into crack propagation prediction by three dimensional analytical techniques. This paper discusses such a technique for predicting the propag
Autor:
S.S. Hashemi, N. Melkoumian
Publikováno v:
Journal of Petroleum Science and Engineering. 146:30-49
Boreholes are drilled for different purposes such as discovering potential new deposits of underground minerals, extraction of petroleum, underground strata investigation, etc. Although no specific significant problems have been reported on drilling
Autor:
N. Melkoumian, S.S. Hashemi
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 87:90-103
The breakage of bonding between sand particles at a borehole wall usually precedes the borehole failure and it can be considered as a sign that the onset of the borehole collapse is imminent in granular formations. Detecting the particle detachment p
Publikováno v:
Journal of Petroleum Science and Engineering. 135:101-117
Poorly cemented sands are mainly located in areas where layers of unconsolidated formations exist. Drilling a borehole in the ground causes stress perturbation and induces tangential stresses on the borehole wall. If the cohesion between sand particl