Advance Search
CAO Yunxing, TIAN Lin, FAN Yanchang, LIU Jianzhong, ZHANG Shuai. Study on cracking ring form of carbon dioxide gas phase fracturing in low permeability coal seam[J]. COAL SCIENCE AND TECHNOLOGY, 2018, (6).
Citation: CAO Yunxing, TIAN Lin, FAN Yanchang, LIU Jianzhong, ZHANG Shuai. Study on cracking ring form of carbon dioxide gas phase fracturing in low permeability coal seam[J]. COAL SCIENCE AND TECHNOLOGY, 2018, (6).

Study on cracking ring form of carbon dioxide gas phase fracturing in low permeability coal seam

More Information
  • Available Online: April 02, 2023
  • Published Date: June 24, 2018
  • In order to reveal the crack pressure released ring form of the gas phase fracturing,a spherical seismic source theory was applied to establish a relationship between the seismic stress drop and the cracking ring shape. A supervision study was conducted on the gas phase fracturing operation process of No. 3 seam in Shanxi Formation of Shanxi Gaohe Energy Company. The results showed that the supervision of the microseismic as a geophysics means could effectively reveal the crack pressure released ring shape of the gas phase fracturing. The crack pressure released ring shape of the gas phase fracturing was an irregular spheroid. The long axis of the spheroid was equivalent to the sectional fracturing length of the borehole and the short axis length was 8 ~ 20 m. The cracking expansion irregularity of the gas phase frac- turing mainly was controlled by the asynchrony of the high pressure gas fracturing. The anisotropy and brittleness index of the coal ( rock) also would affect to the crack expansion shape.
  • Related Articles

    [1]LI Huaizhan, SUN Jingchao, GUO Guangli, TANG Chao, ZHENG Hui, ZHANG Liangui, Meng Fanzhen. Evolution characteristics and development height prediction method of water-conducting crack zone in thick weak cemented overlying strata[J]. COAL SCIENCE AND TECHNOLOGY, 2025, 53(2): 287-298. DOI: 10.12438/cst.2023-1931
    [2]YANG Shuai, LIU Zegong, ZHANG Jianyu, FU Shigui, QIAO Guodong, ZHANG Xin. Experimental study on the effect of the angle of the shaped charge tube on the penetration enhancement of coal seam blasting[J]. COAL SCIENCE AND TECHNOLOGY, 2024, 52(3): 129-138. DOI: 10.12438/cst.2023-0714
    [3]WANG Kaifei, ZHANG Changsuo, HAO Bingyuan, ZHANG Shengli. Study on initiation and propagation mechanism of internal cracks caused by dynamic and static action of shaped charge blasting under in-situ stress[J]. COAL SCIENCE AND TECHNOLOGY, 2023, 51(S1): 50-64. DOI: 10.13199/j.cnki.cst.2022-1042
    [4]WANG Hongwei, ZHANG Cuimin, SONG Jiaqi, WANG Zeliang, PAN Yan. Preliminary study on construction of visual database for structural morphology and mechanical properties of coal and rock cracks[J]. COAL SCIENCE AND TECHNOLOGY, 2023, 51(S1): 27-39. DOI: 10.13199/j.cnki.cst.2022-1328
    [5]MENG Xiangjun, ZHAO Pengxiang, WANG Xuyou, LIU Lidong, YANG Junsheng. “Three zones”microseismic monitoring and analysis of gas drainage effect of overlying strata in gob of high dip high gas seam[J]. COAL SCIENCE AND TECHNOLOGY, 2022, 50(1): 177-185.
    [6]TIAN Yu, ZHANG Bo, LIU Bowen, WANG Zhenwei, WEI Zhen, YAN Jie. Study on deformation mechanism and shape optimization of multi-weak interlayer slope in open-pit mine[J]. COAL SCIENCE AND TECHNOLOGY, 2021, 49(6): 189-194.
    [7]MAO Xiaoyi, MA Yankun, ZHAO Aohan. Experimental study on morphological characteristics of blasting-induced cracks under action of different media[J]. COAL SCIENCE AND TECHNOLOGY, 2020, 48(6).
    [8]Sun Xikui Chang Qingliang Shi Xianyuan Li Xiangyang, . Thickness measurement and distribution law of loose rings of surrounding rock in large cross section semicircle arch seam gateway[J]. COAL SCIENCE AND TECHNOLOGY, 2016, (11).
    [9]Ni Xiaoming Gao Xiang Li Zheyuan, . Millimeter sized crack network reconstruction and permeability prediction of coal and rock[J]. COAL SCIENCE AND TECHNOLOGY, 2016, (8).
    [10]Study on Coal Mining Height of Coal Mining Face Affected to 0 Ring Distribution Law[J]. COAL SCIENCE AND TECHNOLOGY, 2012, (1).
  • Cited by

    Periodical cited type(5)

    1. 张强,杨康,曹津铭,白雨,邓攀博,杨子. 视频AI算法分析的煤矿固体智能充填开采方法. 煤炭科学技术. 2024(11): 163-173 . 本站查看
    2. 王子铭,郭龙真,杨帅. 基于深度学习和单目视觉的采煤机滚筒测距算法. 煤矿机械. 2023(09): 182-186 .
    3. 葛世荣,王世佳,曹波,王世博,吕嘉晨. 智能采运机组自主定位原理与技术. 煤炭学报. 2022(01): 75-86 .
    4. 韩飞. 基于激光雷达的主动式人员接近检测系统设计. 陕西煤炭. 2022(06): 100-103+120 .
    5. 曹波,王世博,鲁程. 基于UWB系统的采煤工作面端头采煤机自主定位方法研究. 仪器仪表学报. 2022(10): 108-117 .

    Other cited types(2)

Catalog

    Article views (643) PDF downloads (502) Cited by(7)
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return