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Volume 35 Issue 3
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HAN Zhong-ying, XUE Shi-feng, ZHU Xiu-xing. Experimental study on re-fracturing in defective reservoirs[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(3): 567-570.
Citation: HAN Zhong-ying, XUE Shi-feng, ZHU Xiu-xing. Experimental study on re-fracturing in defective reservoirs[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(3): 567-570.
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Experimental study on re-fracturing in defective reservoirs

  • College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China

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  • Received Date: March 06, 2012
  • Published Date: March 24, 2013
    Graphical Abstract
    • Abstract
  • The distributions of fractures after re-fracturing in defective reservoirs are studied by using a series of large size true tri-axial test systems for the first time. The experimental results show that the stress redirection has a great impact on the distribution of new cracks. When the load reaches a certain critical value, defects will be activated during hydraulic fracturing, and more complex fractures will be formed. Whether new fractures propagate along the preset fracture or not largely depends on the stress state, geological conditions, and so on. Especially under the higher uniform stress, the direction of new fractures has nothing to do with the preset ones.
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    • References (15)
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