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《Chinese Science Bulletin》 2016-01
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3D reconstruction of low-permeability heterogeneous glutenites and numerical simulation of hydraulic fracturing behavior

JU Yang;YANG Yong Ming;CHEN Jia Liang;LIU Peng;DAI Tao;GUO Ying Chun;ZHENG Lian Ge;State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology;State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology;Earth Sciences Division,Lawrence Berkeley National Laboratory;School of Mechanics and Civil Engineering,China University of Mining and Technology;Geological Scientific Research Institute,SINOPEC Shengli Oilfield Company;  
Based on microfocus computed tomography(?CT) imaging and X-ray diffraction techniques,a three-dimensional(3D) reconstruction model for heterogeneous glutenites was established by taking into account the mineral compositions and distribution characteristics of gravel particles.We employed the continuum-based discrete element method(CDEM) to simulate and analyze the initiation and propagation behavior of hydrofracturing cracks of heterogeneous glutenites subjected to various horizontal geostresses.The influences of various horizontal stress ratios and the characteristics of gravel particles on the initiation,growth,geometry,and spatial distribution of hydrofracturing cracks in heterogeneous glutenites were evaluated by comparing the properties of fractures with the simulation results of homogeneous sandstones.Additionally,we conducted a series of hydrofracturing experiments with physical models of the heterogeneous glutenites and homogeneous sandstones and compared the experimental data to the simulation results.Findings showed that the heterogeneity of glutenites significantly affects the hydrofracturing crack initiation and growth behavior.For identical geostress,the initiation pressure for hydrofracturing of heterogeneous glutenites was lower than that of homogeneous sandstones.The difference in initiation pressure between the heterogeneous glutenites and homogenous sandstones gradually decreased with an increase in the horizontal stress ratio,but overall,the change in the horizontal stress ratio had little effect on the initiation pressure for hydrofracturing of heterogeneous glutenites.The data from this investigation also indicate that for both heterogeneous glutenites and homogeneous sandstones,changes in the horizontal stress ratio can have an apparent impact on the spatial distribution and morphology of hydrofracturing cracks.
【Fund】: 国家杰出青年科学基金(51125017);; 国家自然科学基金(51374213);; 国家自然科学创新研究群体科学基金(51421003);; 国家重点基础研究发展计划(2011CB201201)资助
【CateGory Index】: TE357.1
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 CHEN Mian ZHOU Jian JIN Yan ZHANG Guangqing(Key Laboratory for Petroleum Engineering of the Ministry of Education,China University of Petroleum,Beijing 102249,China);Experimental study on fracturing features in naturally fractured reservoir[J];Acta Petrolei Sinica;2008-03
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 XIA Binwei;HU Ke;LU Yiyu;LIU Yong;SONG Chenpeng;State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing University;National & Local Joint Engineering Laboratory of Gas Drainage in Complex Coal Seam,Chongqing University;;Mechanism of crack-oriented of hydraulic fracture and its technique in mine[J];Journal of Chongqing University;2013-09
2 Ju Yiwen;Bu Hongling;Wang Guochang;Key Laboratory of Computational Geodynamics,Chinese Academy of Sciences;College of Earth,University of Chinese Academic of Sciences;;Main Characteristics of Shale Gas Reservoir and Its Effect on the Reservoir Reconstruction[J];Advances in Earth Science;2014-04
3 HE Shuangxi;XIAO Hongrong;College of Petroleum Engineering,Southwest Petroleum University;Second oil produce factory of Xinjiang Oilfield,Petro China;;The Analysis of Forming Conditions of Fracturing Fracture Network in Shale Gas Reservoir and Calculation of Swept Volume[J];Journal of Chongqing University of Science and Technology(Natural Sciences Edition);2015-01
4 Gao Changlong;Ai Chi;Li Yuwei;Xu Le;Yang Ming;Zhang Biao;College of Petroleum Engineering, Northeast Petroleum University;Research Institute of Drilling &Production Technology,Liaohe Oilfield Company, PetroChina;No.4 Oil Production Plant,Dagang Oilfield Company, PetroChina;Drilling Project Department of No.3 Drilling Company, Changcheng Drilling Engineering Limited Company,PetroChina;;Discrimination model of fracture morphology among synchronization fracturing wells in low permeability reservoirs[J];Fault-Block Oil & Gas Field;2015-03
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7 TANG Shu-heng1,ZHU Bao-cun1,YAN Zhi-feng2(1.School of Energy Resources,China University of Geosciences(Beijing),Beijing 100083,China;2.School of Resources,Hebei University of Engineering,Handan 056038,China);Effect of crustal stress on hydraulic fracturing in coalbed methane wells[J];Journal of China Coal Society;2011-01
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9 HE Jun-hua;CHEN Li-chao;HU Qi;WANG Sheng-wei;ZHANG Ye-chang;CHEN Wen-wen;LIU Qin-qin;Faculty of Earth Resources,China University of Geosciences(Wuhan);State Energy Key Laboratory of Joint Exploitation of Coal and Coal-bed Methane;;Comparative analysis for the impact of different natural fracture surface characteristics on CBM fracturing[J];Journal of China Coal Society;2014-09
10 CHEN Wan-gang;SUN Han-sen;XIAO Qing-hua;YANG Qi;ZHAO Jun;FENG Wen-guang;China United Coalbed Methane Co.,Ltd.;College of Energy,Chengdu University of Technology;;Study on Latent Acid Fracturing Fluid Applicable to CBM Wells[J];Science Technology and Engineering;2015-27
【Secondary Citations】
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1 ZHANG Guang-qing~(1,2) CHEN Mian~2 (1.Department of Mechanics and Engineering, Peking University, Beijing 100871, China; 2.Faculty of Petroleum Engineering, China University of Petroleum, Beijing 102249, China);Non-planar propagation of hydraulic fracture near horizontal wellbore[J];Acta Petrolei Sinica;2005-03
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