Numerical Simulation of Influencing Factors of Hydraulic Fracture Network Development in Reservoirs with Pre-Existing Fractures

被引:9
|
作者
Zhao, Kai [1 ,2 ]
Li, Runsen [1 ]
Lei, Haoran [3 ]
Gao, Wei [1 ]
Zhang, Zhenwei [1 ]
Wang, Xiaoyun [1 ]
Qu, Le [1 ]
机构
[1] Xian Shiyou Univ, Coll Petr Engn, Xian 710065, Peoples R China
[2] Xian Shiyou Univ, Xian Key Lab Tight Oil Shale Oil Dev, Xian 710065, Peoples R China
[3] PetroChina Changqing Oilfield Co, Oil Prod Plant 11, Qingyang 745000, Peoples R China
基金
中国国家自然科学基金;
关键词
fracture intersection; fracture network; finite element method; hydraulic fracturing; NATURAL FRACTURES; PROPAGATION;
D O I
10.3390/pr10040773
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The intersection behavior of hydraulic fractures and single natural fractures has been studied in detail; however, in fractured reservoirs, natural fractures are numerous and interlaced and the intersection of hydraulic fractures and multiple natural fractures occurs during the fracturing process. This intersection behavior is more complex and there is a lack of research on this topic at present. In this study, a numerical simulation model of the interaction between hydraulic fractures and a series of natural fractures was established, the main factors that affect the formation scale of a fracture network during the hydraulic fracturing of a fractured reservoir were studied using the numerical simulation method, and the parameters were also studied. The results showed that the natural fracture trend, in situ stress difference, and injection flow rate have an impact on the scale of a fracture network. The larger the in situ stress difference, the smaller the scale of the fracture network, which gradually changes from multiple clusters of fractures to single fractures. The larger the injection flow rate, the larger the scale of the fracture network. In the uniform stress field, the direction of a natural fracture is closer to the direction of principal stress, so the lower the fracture extension pressure, the smaller the scale of the network. On the contrary, the farther away from the principal stress direction, the lower the fracture extension pressure and the higher the extension pressure, the larger the scale of the fracture network.
引用
收藏
页数:14
相关论文
共 50 条
  • [1] Numerical Analysis on the Formation of Fracture Network during the Hydraulic Fracturing of Shale with Pre-Existing Fractures
    He, Jianming
    Zhang, Zhaobin
    Li, Xiao
    ENERGIES, 2017, 10 (06)
  • [2] Numerical simulation of hydraulic fracture propagation in rock masses with pre-existing double fractures using the phase field method
    Lu Mao-Lin
    Zhu Zhen-De
    Zhou Lu-Ming
    Ge Xin-Lian
    ROCK AND SOIL MECHANICS, 2024, 45 (06) : 1850 - 1862
  • [3] A Dynamic Propagation Numerical Model of Hydraulic Fracture Interactions with Pre-Existing Complex Natural Fractures
    Li, Shuangming
    Zhao, Huan
    Wang, Jianbo
    Xie, Xiaorui
    Qin, Lan
    Zou, Linhao
    Liu, Yapeng
    PROCESSES, 2024, 12 (05)
  • [4] Visualization of hydraulic fracture interacting with pre-existing fracture
    Zi-Xiao Xie
    Xiao-Guang Wu
    Teng-Da Long
    Zhong-Wei Huang
    Gen-Sheng Li
    Wen-Chao Zou
    Zhao-Wei Sun
    Petroleum Science, 2023, 20 (06) : 3723 - 3735
  • [5] Visualization of hydraulic fracture interacting with pre-existing fracture
    Xie, Zi-Xiao
    Wu, Xiao-Guang
    Long, Teng-Da
    Huang, Zhong-Wei
    Li, Gen-Sheng
    Zou, Wen -Chao
    Sun, Zhao -Wei
    PETROLEUM SCIENCE, 2023, 20 (06) : 3723 - 3735
  • [6] Interaction between Hydraulic Fracture and Pre-Existing Fracture under Pulse Hydraulic Fracturing
    Wei, C.
    Zhang, B.
    Li, S. C.
    Fan, Z. X.
    Li, C. X.
    SPE PRODUCTION & OPERATIONS, 2021, 36 (03): : 553 - 571
  • [7] Comprehensive characterization of hydraulic fracture propagations and prevention of pre-existing fault failure in Duvernay shale reservoirs
    Bao, Penghu
    Hui, Gang
    Hu, Yafei
    Song, Rui
    Chen, Zhangxin
    Zhang, Ke
    Pi, Zhiyang
    Li, Ye
    Ge, Chenqi
    Yao, Fuyu
    Zhang, Yujie
    Gu, Fei
    ENGINEERING FAILURE ANALYSIS, 2025, 173
  • [8] Numerical modeling of hydraulic fracture propagation behaviors influenced by pre-existing injection and production wells
    Gao, Qi
    Cheng, Yuanfang
    Han, Songcai
    Yan, Chuanliang
    Jiang, Long
    JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2019, 172 : 976 - 987
  • [9] Numerical Analysis for Dynamic Propagation and Intersection of Hydraulic Fractures and Pre-existing Natural Fractures Involving the Sensitivity Factors: Orientation, Spacing, Length, and Persistence
    Wang, Yongliang
    Duan, Yifeng
    Liu, Xuguang
    Huang, Jin
    Hao, Nai
    ENERGY & FUELS, 2021, 35 (19) : 15728 - 15741
  • [10] 3D Numerical Modeling of the Propagation of Hydraulic Fracture at Its Intersection with Natural (Pre-existing) Fracture
    Ali Naghi Dehghan
    Kamran Goshtasbi
    Kaveh Ahangari
    Yan Jin
    Aram Bahmani
    Rock Mechanics and Rock Engineering, 2017, 50 : 367 - 386