The Property Study of Acoustic Emission in Hydraulic Fracturing Simulation Experiment of Different Rocks

PreviousNext No AccessSPG/SEG 2016 International Geophysical Conference, Beijing, China, 20-22 April 2016The Property Study of Acoustic Emission in Hydraulic Fracturing Simulation Experiment of Different RocksAuthors: Liang TianchengFu HaifengLiu YunzhiDou JingjingXiu NailingLiang TianchengResearch Institute of Petroleum Exploration and Development-Langfang, CNPC, Hebei.Langfang, 065007Search for more papers by this author, Fu HaifengResearch Institute of Petroleum Exploration and Development-Langfang, CNPC, Hebei.Langfang, 065007Search for more papers by this author, Liu YunzhiResearch Institute of Petroleum Exploration and Development-Langfang, CNPC, Hebei.Langfang, 065007Search for more papers by this author, Dou JingjingResearch Institute of Petroleum Exploration and Development-Langfang, CNPC, Hebei.Langfang, 065007Search for more papers by this author, and Xiu NailingResearch Institute of Petroleum Exploration and Development-Langfang, CNPC, Hebei.Langfang, 065007Search for more papers by this authorhttps://doi.org/10.1190/IGCBeijing2016-197 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract The hydraulic fracturing experiment system, with the sample size of 30in*30in*36in, can simulate a variety of laboratory simulation experiments under different geological conditions. Acoustic emission (AE) equipment is used to monitor the crack initiation and extension in real-time through the experiment. After the experiment, we can see the morphology of cracks in the form of direct observation, which provides an important tool for the fracturing theory research and experimental verification. In this work, we used rocks of different lithology - sandstone, coal, and shale blocks to simulate fracturing experiments, with AE monitoring. The AE data analysis shows that hydraulic fractures propagate in the direction of formation maximal stress, which founds a strong correlation between fracturing process and AE parameters (e.g., the number and amplitude of AE events). Detailed analysis of AE location could effectively help identify various stages of the initiation, propagation and closure of hydraulic fractures. For the experiments, a simple symmetrical wings fracture with few branches were found in tight sandstone, a “+” shaped fracture network along bedding and cleats was in coal, and a complex fracture communicating hydraulic fracture and natural fractures was formed in shale. These results provide a reference for understanding the micro-seismic monitoring data recorded in the oilfield. Keywords: hydraulic fracturing, acoustic emissionPermalink: https://doi.org/10.1190/IGCBeijing2016-197FiguresReferencesRelatedDetails SPG/SEG 2016 International Geophysical Conference, Beijing, China, 20-22 April 2016ISSN (online):2159-6832Copyright: 2016 Pages: 749 publication data© 2016 Published in electronic format with permission by the Society of Exploration Geophysicists and Society of Petroleum GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 22 Apr 2016 CITATION INFORMATION Liang Tiancheng, Fu Haifeng, Liu Yunzhi, Dou Jingjing, and Xiu Nailing, (2016), "The Property Study of Acoustic Emission in Hydraulic Fracturing Simulation Experiment of Different Rocks," SEG Global Meeting Abstracts : 646-649. https://doi.org/10.1190/IGCBeijing2016-197 Plain-Language Summary Keywordshydraulic fracturingacoustic emissionPDF DownloadLoading ...