Results 101 to 110 of about 164 (144)
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Journal of Petroleum Science and Engineering, 2021
Abstract The method of micro-sized Graded Proppant Placement (GPP) has been proposed in the industry to increase the size of the stimulated zone in naturally fractured reservoirs. The models of determining the Optimal Proppant Packing Ratio (OPPR) and the optimal injection schedule have also been established.
Pavel Bedrikovetsky
exaly +2 more sources
Abstract The method of micro-sized Graded Proppant Placement (GPP) has been proposed in the industry to increase the size of the stimulated zone in naturally fractured reservoirs. The models of determining the Optimal Proppant Packing Ratio (OPPR) and the optimal injection schedule have also been established.
Pavel Bedrikovetsky
exaly +2 more sources
New Experimental Methods to Study Proppant Embedment in Shales
Rock Mechanics and Rock Engineering, 2021Productivity in fractured wells typically declines when severe proppant embedment shrinks the fracture aperture and creates conductivity clogging fines. However, the mechanisms linking embedment to decline are poorly characterized. In the absence of this understanding, very few models take proppant embedment into account when predicting production ...
Ekrem Alagoz
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The effect of proppant embedment upon the long-term conductivity of fractures
Journal of Petroleum Science and Engineering, 2007Experimental research on proppant embedment in formation core has been done for the first time in China using FCES-100 (Long-Term Fracture Conductivity Evaluation System). In the experiments, the degree of embedment to different cores and the damage to conductivity were studied in the condition of different concentrations and types of proppants.
Qingzhi Wen +4 more
exaly +2 more sources
Rock Mechanics and Rock Engineering, 2021
Under high temperature and stress reservoir conditions, proppant embedment induced by the time-dependent creep behavior of shale rocks has posed great challenges to the long-term maintenance of fracture conductivity in unconventional reservoirs. In this study, a numerical workflow combining a 3D continuum–discrete mechanical coupling approach with the ...
Ming Fan, Yanhui Han, Cheng Chen
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Under high temperature and stress reservoir conditions, proppant embedment induced by the time-dependent creep behavior of shale rocks has posed great challenges to the long-term maintenance of fracture conductivity in unconventional reservoirs. In this study, a numerical workflow combining a 3D continuum–discrete mechanical coupling approach with the ...
Ming Fan, Yanhui Han, Cheng Chen
exaly +2 more sources
Numerical study of proppant embedment under proppant-coal seam interaction
Powder TechnologyExperimental studies on proppant embedment in coal seams often overlook factors like pulverized coal shedding, leading to inaccuracies. This study developed a numerical model for proppant embedment in coal seams using elastoplastic theory and the material point method (MPM).
Zhang, Jiaojiao +4 more
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Influences of Proppant Embedment and Deformation on Micro-Sized Graded Proppant Injection Scheme
SPE Asia Pacific Oil & Gas Conference and Exhibition, 2020Abstract The method of micro-sized graded proppant injection has been proposed in the industry to increase the size of the stimulated zone in naturally fractured reservoirs, especially CBM. However, big discrepancies between the modelling results of graded proppant injection and the experimental results have been observed.
Huifeng Liu +6 more
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Mechanism of Single Proppant Pressure Embedded in Coal Seam Fracture
Energy & Fuels, 2021The strength and rigidity of proppant and coal are quite different. Proppant is easily embedded in coal, resulting in the decrease of fracture aperture and conductivity. The mechanism of proppant embedded in the coal fracture surface needs further study.
Haoze Li +5 more
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New Mathematical Models for Calculating Proppant Embedment and Fracture Conductivity
SPE Journal, 2012SummaryProppant embedment plays a significant role in decreasing fracture aperture and conductivity, especially for weakly consolidated sandstones, shale (oil and gas) rock, and coalbeds. Empirical and semiempirical models were usually used to calculate the embedment of proppants.
Yuanping Gao +3 more
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Modeling of Proppant Embedment: Elastic Deformation and Creep Deformation
SPE International Production and Operations Conference & Exhibition, 2012Abstract Unconventional reservoir has become the hotspot of development in petroleum industry. In shale reservoir, some fracture is only propped by a monolayer 100mesh proppant. Fracture width is very small and under the condition of low rock hardness and high effective closure stress, the fracture will heal after a period of time ...
Jianchun Guo, Yuxuan Liu
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Investigation of proppant crushing and embedment mechanisms in reservoir rocks
2021This research primarily focuses on Australia’s unconventional oil, natural gas and geothermal energy sectors. The findings of this study provide solutions to the rapid decline rate observed during the initial energy recovery from unconventional energy reserves.
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