含界面储层水力压裂试验与数值模拟研究进展

doi:10.13722/j.cnki.jrme.2021.0915

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摘要深部储层含有大量的天然裂缝、断层、层理等各种不连续界面，这些界面直接影响并制约了水力压裂缝网形成及应用效果。从水力压裂试验、理论及数值模拟3个方面系统分析含界面储层的水力压裂研究进展。首先，梳理了水力压裂物模试验研究进展，探讨了不同含界面储层水力压裂物模试验方法，如加载方式、试样制备、监测手段。其次，基于含界面试样压裂物模试验结果，分析了水力裂缝与界面相互作用理论及影响缝网压裂效果的关键因素。然后，从水力裂缝与界面相互作用数值模拟的难点入手，重点阐述了裂缝交叉处理过程，水力裂缝与界面相互作用及压裂缝网形成机制数值模拟研究进展。最后，总结现阶段含界面储层水力压裂研究中存在的问题及发展趋势。

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	杨典森1
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	周云1
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	周再乐1
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关键词 ：岩石力学, 水力压裂, 天然裂缝, 界面, 相互作用, 压裂缝网

Abstract：There are a large number of discontinuous interfaces such as natural fractures，faults and bedding planes in deep reservoirs. These interfaces dominate the generation of the fracture network and efficiency of the stimulation treatment. This paper presents a brief review on the study of hydraulic fracturing in reservoirs with interfaces in three aspects：experiments，theory and numerical simulation. Firstly，this paper investigates the current state of laboratory hydraulic fracturing experiments including loading mode，sample preparation and fracture monitoring. Secondly，based on the results of hydraulic fracturing experiments，the theory of the interaction between hydraulic fracture and single interface is analyzed. In addition，the key factors affecting the generation of the fracture network are concluded. Then，the difficulties of numerical simulation of the interaction between hydraulic fractures and the interface are presented. The treatment of the fracture intersection，and the numerical research progress of the interaction between hydraulic fractures and interfaces and the generation of fracture network are reviewed. Finally，a few issues and trends of hydraulic fracturing research in reservoirs with interfaces are proposed.

Key words： rock mechanics hydraulic fracturing natural fractures interface interaction fracture network

引用本文:

杨典森1，2，周云1，2，周再乐1，2. 含界面储层水力压裂试验与数值模拟研究进展[J]. 岩石力学与工程学报, 2022, 41(9): 1771-1794.
YANG Diansen1，2，ZHOU Yun1，2，ZHOU Zaile1，2. A review of experimental and numerical simulation of hydraulic fracturing in reservoirs with interfaces. , 2022, 41(9): 1771-1794.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2021.0915 或 http://rockmech.whrsm.ac.cn/CN/Y2022/V41/I9/1771

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