超声波激励时长对煤体孔裂隙结构及渗透特性的影响

doi:10.16265/j.cnki.issn1003-3033.2024.09.1234

中国安全科学学报 ›› 2024, Vol. 34 ›› Issue (9): 155-164.doi: 10.16265/j.cnki.issn1003-3033.2024.09.1234

超声波激励时长对煤体孔裂隙结构及渗透特性的影响

郝荷杰¹(), 王瑞哲¹^,^**(), 杨二豪², 仇悦¹, 张笑盈¹, 林海飞¹^,³

¹ 西安科技大学安全科学与工程学院,陕西西安 710054
² 西南科技大学环境与资源学院,四川绵阳 621010
³ 西部煤矿瓦斯灾害防控陕西省高等学校重点实验室,陕西西安 710054

收稿日期:2024-03-10 修回日期:2024-06-21 出版日期:2024-09-28
通信作者:
^** 王瑞哲(1995—),男,陕西宝鸡人,博士研究生,主要研究方向为煤层增透瓦斯治理。E-mail:819463680@qq.com。
作者简介:
郝荷杰 (1999—),男,山西吕梁人,硕士研究生,主要研究方向为煤与瓦斯安全共采、煤矿瓦斯防治等。E-mail:1418749631@qq.com。
杨二豪, 讲师；
林海飞, 教授
基金资助:
国家自然科学基金资助(52174207); 陕西省杰出青年基金资助(2020JC-48); 陕西省自然科学基金联合项目资助(2019JLP-02)

Effect of ultrasonic excitation time on pore and crack structure and permeability characteristics of coal

HAO Hejie¹(), WANG Ruizhe¹^,^**(), YANG Erhao², QIU Yue¹, ZHANG Xiaoying¹, LIN Haifei¹^,³

¹ School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an Shaanxi 710054, China
² College of Environment and Resources, Southwest University of Science and Technology, Mianyang Sichuan 6210103, China
³ Western Coal Mine Gas Disaster Prevention and Control Key Laboratory of Shaanxi Higher Education Institutions, Xi'an Shaanxi 710054, China

Received:2024-03-10 Revised:2024-06-21 Published:2024-09-28

摘要/Abstract

摘要：

为探究超声波激励作用下不同激励时长对煤体损伤的特性,利用超声波激励试验系统、核磁共振成像系统、体视显微镜、煤岩芯渗透率自动测试系统等,分析不同超声波激励时长下煤体孔隙结构、表面裂隙及渗透特性的变化特征。结果表明:随着超声波激励时长不断增加,煤体微小孔、中孔、大孔的T₂谱峰面积变化率和总孔隙率变化率、表面裂隙面积变化率、渗透率变化率均呈线性增大关系;超声波激励煤体30~150 min,微小孔、中孔、大孔的T₂谱峰面积变化率分别由14.60%、52.50%、24.90%增大至61.30%、145.50%、235.70%;总孔隙率变化率、表面裂隙面积变化率、渗透率变化率分别由5.04%、47.27%、41.67%增大至24.93%、127.91%、208.33%。在不同超声波时长激励下,煤体渗透率变化率与总孔隙率变化率、表面裂隙面积变化率均符合线性增大关系;随着超声波激励时长增加,煤体孔隙、裂隙改造效果提升,渗透率得以提高。

关键词: 超声波激励时长, 裂隙结构, 渗透特性, 核磁共振, 孔隙率

Abstract:

In order to explore the damage characteristics of coal under different ultrasonic excitation time, the ultrasonic excitation test system, nuclear magnetic resonance imaging system, stereo microscope and automatic permeability test system of coal core were used to analyze the changes of pore structure, surface crack and permeability characteristics of coal under different ultrasonic excitation time. The results show that with the increase of ultrasonic excitation time, the change rates of T2 spectral peak area, total porosity, surface fracture area and permeability of small, medium and large pores in coal are linearly increased. When the coal body is excited by ultrasonic for 30 to 150 min, the change rate of T2 peak area of micro, medium and large pores increase from 14.60%, 52.50% and 24.90% to 61.30%, 145.50% and 235.70%, respectively. The total porosity change rate, surface crack area change rate and permeability change rate increased from 5.04 %, 47.27 % and 41.67 % to 24.93 %, 127.91 % and 208.33 %, respectively. Under the excitation of different ultrasonic time, the change rate of permeability of the coal and the change rate of total porosity and the change rate of surface cracking area are in line with the linear increasing relationship, with the increase of ultrasonic excitation time, the pore and crack modification effect of coal is enhanced, and the permeability can be improved.

Key words: ultrasonic excitation duration, fracture structure, permeability characteristics, nuclear magnetic resonance, porosity

中图分类号:

X935

郝荷杰, 王瑞哲, 杨二豪, 仇悦, 张笑盈, 林海飞. 超声波激励时长对煤体孔裂隙结构及渗透特性的影响[J]. 中国安全科学学报, 2024, 34(9): 155-164.

HAO Hejie, WANG Ruizhe, YANG Erhao, QIU Yue, ZHANG Xiaoying, LIN Haifei. Effect of ultrasonic excitation time on pore and crack structure and permeability characteristics of coal[J]. China Safety Science Journal, 2024, 34(9): 155-164.

图/表 11

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参考文献 26

[1]	李树刚, 张静非, 尚建选, 等. 双碳目标下煤气同采技术体系构想及内涵[J]. 煤炭学报, 2022, 47(4):1416-1429.
	LI Shugang, ZHANG Jingfei, SHANG Jianxuan, et al. Conception and connotation of coal and gas co-extraction technology system under the goal of carbon peak and carbon neutrality[J]. Journal of China Coal Society, 2022, 47(4):1416-1429.
[2]	黄中伟, 李国富, 杨睿月, 等. 我国煤层气开发技术现状与发展趋势[J]. 煤炭学报, 2022, 47(9):3212-3238.
	HUANG Zhongwei, LI Guofu, YANG Ruiyue, et al. Review and development trends of coalbed methane exploitation technology in China[J]. Journal of China Coal Society, 2022, 47(9):3212-3238.
[3]	YANG Wei, WANG Liang, WANG Hao, et al. Ultrasonic-assisted coalbed methane recovery: a coupled acoustic-thermal-mechanical-hydrological model[J]. Energy & Fuels, 2023, 37(6):4293-4307.
[4]	易俊, 姜永东, 鲜学福. 声场促进煤层气渗流的应力-温度-渗流压力场的流固动态耦合模型[J]. 岩土力学, 2009, 30(10):2945-2949, 2 960.
	YI Jun, JIANG Yongdong, XIAN Xuefu, et al. A liquid-solid dynamic coupling modelof ultrasound enhanced coalbed gas desorption and flow[J]. Rock and Soil Mechanics, 2009, 30(10):2945-2949, 2 960.
[5]	康智鹏. 超声波激励下煤体微观结构精细表征及解吸渗流特性的研究[D]. 重庆: 重庆大学, 2021.
	KANG Zhipeng. Study on microstructure fine characterization and desorption and seepage characteristics of coal body under ultrasonic incentive[D]. Chongqing: Chongqing University, 2021.
[6]	田洪波, 蒋曙光, 李玥, 等. 功率声波激励下无烟煤孔隙变化及裂隙发育研究[J]. 煤矿安全, 2017, 48(8):9-12.
	TIAN Hongbo, JIANG Shuguang, LI Yue, et al. Study on anthracite pores variation and fractures development under acoustic power excitation[J]. Safety in Coal Mines, 2017, 48(8):9-12.
[7]	TANG Zongqing, ZHAI Cheng, ZOU Quanle, et al. Changes to coal pores and fracture development by ultrasonic wave excitation using nuclear magnetic resonance[J]. Fuel, 2016, 186:571-578.
[8]	林海飞, 仇悦, 王瑞哲, 等. 多级脉冲超声波激励含水煤体瓦斯解吸特征的试验研究[J]. 煤炭学报, 2024, 49(3): 1403-1413.
	LIN Haifei, QIU Yue, WANG Ruizhe, et al. Experimental study on gas desorption characteristics of hydrous coal by multistage pulsed ultrasonic excitation[J]. Journal of China Coal Society, 2024, 49(3): 1403-1413.
[9]	肖晓春, 潘一山, 吕祥锋, 等. 超声激励低渗煤层甲烷增透机理[J]. 地球物理学报, 2013, 56(5):1726-1733.
	XIAO Xiaochun, PAN Yishan, LYU Xiangfeng, et al. Mechanism of methane permeability enhance through ultrasonic irradiating on low permeable coal seam[J]. Chinese Journal of Geophysics, 2013, 56(5):1726-1733.
[10]	赵鑫, 肖晓春, 潘一山, 等. 超声机械效应致裂煤岩增渗规律研究[J]. 中国安全生产科学技术, 2016, 12(5):151-157.
	ZHAO Xin, XIAO Xiaochun, PAN Yishan, et al. Research on permeability enhancement laws of coal fracturing by ultrasound mechanical effect[J]. Journal of Safety Science and Technology, 2016, 12(5):151-157.
[11]	于国卿, 翟成, 秦雷, 等. 超声波功率对煤体孔隙影响规律研究[J]. 中国矿业大学学报, 2018, 47(2):264-270,322.
	YU Guoqing, ZHAI Cheng, QIN Lei, et al. Changes to coal pores by ultrasonic wave excitation of different powers[J]. Journal of China University of Mining & Technology, 2018, 47(2):264-270,322.
[12]	马会腾. 超声波激励对煤体官能团及孔隙结构的影响[D]. 徐州: 中国矿业大学, 2020.
	MA Huiteng. Effect of ultrasonic excitation on functional groups and pore structures of coal[D]. Xuzhou: China University of Mining and Technology, 2020.
[13]	李树刚, 王瑞哲, 林海飞, 等. 超声波功率对煤体孔隙结构损伤及渗流特性影响实验研究[J]. 采矿与安全工程学报, 2022, 39(2):396-404.
	LI Shugang, WANG Ruizhe, LIN Haifei, et al. Experimental study on the influence of ultrasonic power on coal pore structure damage and seepage characteristics[J]. Journal of Mining & Safety Engineering, 2022, 39(2):396-404.
[14]	李树刚, 王瑞哲, 林海飞, 等. 超声波功率对煤体损伤特性及能量演化规律的试验研究[J]. 煤炭科学技术, 2023, 51(1):283-294.
	LI Shugang, WANG Ruizhe, LIN Haifei, et al. Experimental study on damage characteristics and energy evolution of coal by ultrasonic power[J]. Coal Science and Technology, 2023, 51(1):283-294.
[15]	YANG Erhao, LIN Haifei, LI Shugang, et al. Characteristic strength and energy evolution law of coal treated by ultrasonic wave with different power under uniaxial compression[J]. Natural Resources Research, 2022, 31:913-928.
[16]	LIU Peng, LIU Ang, ZHONG Fangxiang, et al. Pore/fracture structure and gas permeability alterations induced by ultrasound treatment in coal and its application to enhanced coalbed methane recovery[J]. Journal of Petroleum Science and Engineering, 2021, 205:DOI:10.1016/j.petrol.2021.108862.
[17]	李业. 声场作用下煤结构演化机制及煤层气渗流规律的实验研究[D]. 重庆: 重庆大学, 2018.
	LI Ye. Experimental Study on the evolution mechanism of coal structure and the seepage law of CBM under sound field[D]. Chongqing: Chongqing University, 2018.
[18]	宋超, 姜永东, 王苏健, 等. 超声波作用下煤体微观结构的试验研究[J]. 煤炭科学技术, 2019, 47(5):139-144.
	SONG Chao, JIANG Yongdong, WANG Sujian, et al. Experimental study on micro-structure of coal by ultrasonic treatment[J]. Coal Science and Technology, 2019, 47(5):139-144.
[19]	姜永东, 李业, 崔悦震, 等. 声场作用下煤储层渗透性试验研究[J]. 煤炭学报, 2017, 42(增1):154-159.
	JIANG Yongdong, LI Ye, CUI Yuezhen, et al. Experimental study on characteristics of coal reservoir permeability under acoustic wave[J]. Journal of China Coal Society, 2017, 42(S1):154-159.
[20]	王昌伟, 左少杰, 李希建, 等. 超声波作用时间对清洁压裂液改造煤岩效果的影响[J/OL]. 采矿与安全工程学报:1-12.[2024-03-08]. http://kns.cnki.net/kcms/detail/32.1760.TD.20230920.1024.002.html.
	WANG Changwei, ZUO Shaojie, LI Xijian, et al. Effect of ultrasonic action time on coal transformation by clean fracturing fluid[J/OL]. Journal of Mining & Safety Engineering:1-12.[2024-03-08]. http://kns.cnki.net/kcms/detail/32.1760.TD.20230920.1024.002.html.
[21]	翟成, 孙勇, 范宜仁, 等. 低场核磁共振技术在煤孔隙结构精准表征中的应用与展望[J]. 煤炭学报, 2022, 47(2):828-848.
	ZHAI Cheng, SUN Yong, FAN Yiren, et al. Application and prospect of low-field nuclear magnetic resonance technology in accurate characterization of coal pore structure[J]. Journal of China Coal Society, 2022, 47(2):828-848.
[22]	杨明, 柳磊, 张学博, 等. 不同阶煤孔隙结构与流体特性的核磁共振试验研究[J]. 中国安全科学学报, 2021, 31(1):81-88. doi: 10.16265/j.cnki.issn 1003-3033.2020.01.012
	YANG Ming, LIU Lei, ZHANG Xuebo, et al. Nuclear magnetic resonance experimental study on pore structure and fluid characteristics of coal at different ranks[J]. China Safety Science Journal, 2021, 31(1):81-88. doi: 10.16265/j.cnki.issn 1003-3033.2020.01.012
[23]	姚艳斌, 刘大锰. 基于核磁共振弛豫谱技术的页岩储层物性与流体特征研究[J]. 煤炭学报, 2018, 43(1):181-189.
	YAO Yanbin, LIU Dameng. Petrophysical properties and fluids transportation in gas shale: a NMR relaxation spectrum analysis method[J]. Journal of China Coal Society, 2018, 43(1):181-189.
[24]	王云刚, 杨廷廷, 王琼洋, 等. 煤样中超声波传播特性研究[J]. 中国安全科学学报, 2017, 27(12):68-73. doi: 10.16265/j.cnki.issn1003-3033.2017.12.012
	WANG Yungang, YANG Tingting, WANG Qiongyang, et al. Study on propagation characteristics of ultrasonic wave in coal[J]. China Safety Science Journal, 2017, 27(12):68-73. doi: 10.16265/j.cnki.issn1003-3033.2017.12.012
[25]	于永江, 张春会, 王来贵. 超声波干扰提高煤层气抽放率的机理[J]. 辽宁工程技术大学学报:自然科学版, 2008, 27(6): 805-808.
	YU Yongjiang, ZHANG Chunhui, WANG Laigui. Mechanism of ultrasonic interference to increase the rate of CBM[J]. Journal of Liaoning Technical University:Natural Science, 2008, 27(6): 805-808.
[26]	葛兆龙, 卢义玉, 周东平, 等. 空化水射流声震效应促进瓦斯解吸实验的规律及机理研究[J]. 煤炭学报, 2011, 36(7):1150-1155.
	GE Zhaolong, LU Yiyu, ZHOU Dongping, et al. Study on regular and mechanism of coal bed methane desorption experiment under sonic vibrating of cavitation water jets[J]. Journal of China Coal Society, 2011, 36(7):1150-1155.

序号	质量/g	直径/mm	高度/mm	波速/(km·s^-1)
1	283.1	50.0	100.0	1.869
2	280.3	50.0	100.3	1.784
3	282.1	50.2	100.2	1.897
4	281.2	49.9	100.1	1.772
5	282.4	50.0	100.8	1.945

超声波激励时长对煤体孔裂隙结构及渗透特性的影响

Effect of ultrasonic excitation time on pore and crack structure and permeability characteristics of coal

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