Identification of a Suitable 3D Printing Material for Mimicking Brittle and Hard Rocks and Its Brittleness Enhancements
Sign Up to like & getrecommendations! Published in 2017 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-017-1335-7
Abstract: Three-dimensional printing (3DP) is a computer-controlled additive manufacturing technique which is able to repeatedly and accurately fabricate objects with complicated geometry and internal structures. After 30 years of fast development, 3DP has become a mainstream manufacturing… read more here.
Keywords: material mimicking; mimicking brittle; brittle hard; hard rocks ... See more keywords
Quantitative evaluation of rock brittleness based on crack initiation stress and complete stress–strain curves
Sign Up to like & getrecommendations! Published in 2019 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-019-01486-2
Abstract: Brittleness is an important rock material property, and its accurate evaluation has guiding significance in construction as well as in disaster prevention and reduction. Considering the limitations of the existing brittleness indices, a new brittleness… read more here.
Keywords: stress; evaluation; stress strain; rock brittleness ... See more keywords
Prediction of Brittleness Indices of Sandstones Using a Novel Physico-Mechanical Parameter
Sign Up to like & getrecommendations! Published in 2020 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-020-01316-3
Abstract: In this research, we proposed a novel physico-mechanical parameter (PMP) for predicting the brittleness indices of sandstones. For this purpose, 10 sandstone samples were selected and their uniaxial compressive strength (UCS), Brazilian tensile strength (BTS),… read more here.
Keywords: novel physico; mechanical parameter; brittleness indices; physico mechanical ... See more keywords
Numerical simulation of brittleness effect on propagation behavior of glutenite hydraulic fractures
Sign Up to like & getrecommendations! Published in 2021 at "Ain Shams Engineering Journal"
DOI: 10.1016/j.asej.2021.03.015
Abstract: Abstract For hydrocarbon exploitation in tight glutenite, glutenite brittleness plays an important role in fracturing efficiency, but the detailed effect is not entirely clear. In this study, considering rock heterogeneity, RFPA (Rock Failure Process Analysis)… read more here.
Keywords: numerical simulation; brittleness; hydraulic fractures; ductile glutenite ... See more keywords
Mineralogical brittleness index as a function of weighting brittle minerals—from laboratory tests to case study
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2020.103278
Abstract: Abstract Shale brittleness is one of the essential parameters for shale gas reservoir evaluation. Based on correlation analysis between triaxial test and XRD results of shale samples from Wufeng-Longmaxi formations in Shuanghe outcrop area in… read more here.
Keywords: brittleness index; index; brittle minerals; mineralogical brittleness ... See more keywords
An investigation on the effect of thermal maturity and rock composition on the mechanical behavior of carbonaceous shale formations
Sign Up to like & getrecommendations! Published in 2020 at "Marine and Petroleum Geology"
DOI: 10.1016/j.marpetgeo.2020.104315
Abstract: Abstract An accurate assessment of the geomechanical behavior of shale reservoirs is extremely significant in screening the potential intervals for hydraulic stimulation and sweet spot mapping. While most of the studies were carried out on… read more here.
Keywords: mechanical behavior; limestone; behavior carbonaceous; rock ... See more keywords
Investigation on the influence mechanism of rock brittleness on rock fragmentation and cutting performance by discrete element method
Sign Up to like & getrecommendations! Published in 2018 at "Measurement"
DOI: 10.1016/j.measurement.2017.07.043
Abstract: Abstract Rock brittleness is one of the most important factors to be considered in the design and selection of excavation and mining machineries. In this paper, the influence mechanism of rock brittleness on rock fragmentation… read more here.
Keywords: mechanism rock; influence mechanism; cutting force; rock brittleness ... See more keywords
Evaluation method of rock brittleness based on statistical constitutive relations for rock damage
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2017.03.041
Abstract: Abstract Brittleness is an important feature of rock and is related to many mechanical behavior of rock. An accurate evaluation of rock brittleness lays an analytical foundation of drilling and hydraulic fracturing. At present, there… read more here.
Keywords: damage constitutive; evaluation; rock brittleness; rock ... See more keywords
A study of the effect of brittleness on hydraulic fracture complexity using a flow-coupled discrete element method
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2017.10.064
Abstract: Abstract In recent years, hydraulic fracturing has emerged as an important technique for the development of unconventional tight gas and oil reservoirs, particularly shale reservoirs. Production from a tight reservoir requires hydraulic creation of a… read more here.
Keywords: fracture; using flow; fracture complexity; rock ... See more keywords
Rock brittleness evaluation based on energy dissipation under triaxial compression
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.106349
Abstract: Abstract Evaluating the brittleness of rock is significant for strategy determination of hydraulic fracturing, such as candidate selection and parameter optimization. A series of definitions and indices of brittleness have been proposed to characterize the… read more here.
Keywords: brittleness; peak stage; strain; energy ... See more keywords
Brittleness evaluation based on the energy evolution throughout the failure process of rocks
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2020.107361
Abstract: Abstract Brittleness is an important mechanical property of rock masses and a key index used in various engineering practices particularly to evaluate hydraulic fracturing, rock fragmentation and rock burst. However, rock brittleness is a concept… read more here.
Keywords: evaluation; energy evolution; failure; rock ... See more keywords