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[1]韩光,付志豪,白刚,等.CO2注气压力对CH4驱替特性影响实验研究*[J].中国安全生产科学技术,2022,18(8):85-90.[doi:10.11731/j.issn.1673-193x.2022.08.013]
　HAN Guang,FU Zhihao,BAI Gang,et al.Experimental study on influence of COCO2 injection pressure on CHCO4 displacement characteristics[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(8):85-90.[doi:10.11731/j.issn.1673-193x.2022.08.013]
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CO2注气压力对CH4驱替特性影响实验研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年8期
页码:
85-90
栏目:
职业安全卫生管理与技术
出版日期:
2022-08-31

文章信息/Info

Title:
Experimental study on influence of COCO2 injection pressure on CHCO4 displacement characteristics
文章编号:
1673-193X(2022)-08-0085-06
作者:
韩光; 付志豪; 白刚; 周西华; 韩明旭; 王学鹏; 杨洪涛
（1.辽宁工程技术大学 安全科学与工程学院，辽宁 葫芦岛 125105；
2.华阳新材料科技集团有限公司，山西 阳泉 045000；
3.辽宁工程技术大学 矿山热动力灾害与防治教育部重点实验室，辽宁 葫芦岛 125105）
Author(s):
HAN Guang;  FU Zhihao;  BAI Gang ;  ZHOU Xihua;  HAN Mingxu;  WANG Xuepeng;  YANG Hongtao
(1.College of Safety Science and Engineering,Liaoning Technical University,Huludao Liaoning 125105,China;
2.Huayang New Material Technology Group Co.,Ltd.,Yangquan Shanxi 045000,China;
3.Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education,Liaoning Technical University,Huludao Liaoning 125105,China)
关键词:
不同注气压力; 气体解吸特性; 突破时间; 置换效率; 驱替比; 渗透率
Keywords:
different gas injection pressures;  gas desorption characteristics;  breakthrough time;  displacement efficiency;  displacement ratio;  permeability
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2022.08.013
文献标志码:
A
摘要:
为研究CO2驱替CH4过程中注气压力对气体解吸特性的影响，采用自主搭建的驱替实验平台，在0.6，0.8，1.0 MPa不同注气压力下进行驱替实验，研究CO2驱替CH4过程中煤层温度、气体浓度、置换效率和渗透率等变化规律。实验结果表明：提高CO2注气压力可提高CO2置换驱替煤层CH4的效果。随着注气压力增大，CH4累计解吸量增大，CO2突破时间越短，CO2封存量越大，置换效率升高，驱替比下降。注气压力为0.6，0.8，1.0 MPa时，CH4累计解吸量分别为90.2，94.1，97.8 L；CO2封存量分别为19.73，19.92，20.21 mL/g；置换效率由76.9%上升到80.2%再到82.9%，驱替比由3.28下降到3.17再到3.09。注气驱替CH4过程中煤层温度升高，可分为低速升温、高速升温和趋于平缓阶段。煤层温度最高变化量分别为9.4,11.5，12.7 ℃。同一注气压力下，煤层渗透率变化可分为缓慢增长、急剧下降和趋于稳定阶段。
Abstract:
In order to study the influence of gas injection pressure on the gas desorption characteristics during the process of CO2 displacement for CH4,the displacement experiments were carried out under different gas injection pressures of 0.6 MPa,0.8 MPa and 1.0 MPa by using the self-built displacement test platform,and the variation laws of coal seam temperature,gas concentration,displacement efficiency and permeability during the process of CO2 displacement for CH4.The experimental results showed that increasing the CO2 injection pressure could improve the effect of CO2 displacement for CH4 in the coal seam.With the increase of gas injection pressure,the cumulative desorption amount of CH4 increased,the shorter the CO2 breakthrough time,the larger the CO2 storage amount,the displacement efficiency increased,and the displacement ratio decreased.When the gas injection pressure was 0.6,0.8,1.0 MPa,the cumulative desorption amount of CH4 was 90.2,94.1,97.8 L,respectively,and the CO2 storage amount was 19.73,19.92,20.21 mL/g,respectively.The displacement efficiency increased from 76.9% to 80.2% and then to 82.9%,and the displacement ratio decreased from 3.28 to 3.17 and then to 3.09.The temperature of coal seam in the process of gas injection displacement for CH4 increased,which could be divided into the low speed temperature rise stage,high speed temperature rise stage and tending to be gentle stage.The maximum variation of coal seam temperature was 9.4,11.5,12.7 ℃,respectively.Under the same gas injection pressure,the change of coal seam permeability could be divided into the slow growth stage,sharp decline stage and tending to be stable stage.

参考文献/References:

［1］GUNTER W D,GENTZIS T,ROTTENFUSSER B A,et al.Deep coalbed methane in Alberta,Canada:a fuel resource with the potential of zero greenhouse gas emissions［J］.Energy Conversion & Management,1997,38(S1):217-222.
［2］YUAN Liang.Theory and practice of integrated coal production and gas extraction［J］.International Journal of Coal Science & Technology,2015,2( 1):3-11.
［3］杨宏民,许东亮,陈立伟.注CO2置换/驱替煤中甲烷定量化研究［J］.中国安全生产科学技术,2016,12(5):38-42. YANG Hongmin,XU Dongliang，CHEN Liwei.Quantitative study on displacement-replacement of methane in coal through CO2 injection［J］.Journal of Safety Science and Technology,2016,12(5):38-42.
［4］涂敏.低渗透性煤层群卸压开采地面钻井抽采瓦斯技术［J］.采矿与安全工程学报，2013，30( 5):766-772. TU Min.Surface well drilling extracting gas technology in low permeability coal seams depressurized mining［J］.Journal of Mining and Safety Engineering,2013，30( 5):766-772.
［5］郝定溢，叶志伟，方树林.我国注气驱替煤层瓦斯技术应用现状与展望［J］.中国矿业，2016，25（7）：77-81. HAO Dingyi,YE Zhiwei,FANG Shulin.Present situation and prospect of coal seam gas recovery by gas injection technology utilization in China［J］.China Mining Magazine,2016,25(7):77-81.
［6］杨宏民.井下注气驱替煤层甲烷机理及规律研究［D］.焦作：河南理工大学，2010.
［7］韩俊杰，梁卫国，张建功，等.煤层处置二氧化碳模拟实验研究［J］.煤炭学报，2014，39（3）：531-536. HAN Junjie,LIANG Weiguo,ZHANG Jiangong,et al.Simulation experiment of carbon dioxide storage in coal seam［J］.Journal of China Coal Society,2014,39(3):531-536.
［8］马志宏，郭勇义，吴世跃.注入二氧化碳及氮气驱替煤层气机理的实验研究［J］.太原理工大学学报，2001，32(4):335-338. MA Zhihong，GUO Yongyi，WU Shiyue.An experimental study of mechanism of exploiting coal-bed methane by injecting carbon dioxide or nitrogen［J］.Journal of Taiyuan University of Technology，2001，32( 4):335-338.
［9］于洪观，范维唐，孙茂远，等.高压下煤对 CH4/ CO2二元气体吸附等温线的研究［J］.煤炭转化，2005,28(1):43-47. YU Hongguan,FAN Weitang,SUN Maoyuan,et al.Study on adsorption isotherm of CH4/CO2 binary mixtures on coal under high pres-sure［J］.Coal Conversion,2005,28(1):43-47.
［10］周来，冯启言，秦勇.CO2和 CH4在煤基质表面竞争吸附的热力学分析［J］.煤炭学报，2011，36( 8):1307-1311. ZHOU Lai,FENG Qiyan,QIN Yong.Thermodynamic analysis of com-petitive adsorption of CO2 and CH4 on coal matrix［J］.Journal of China Coal Society,2011,36( 8):1307-1311.
［11］DUAN S，MIN G，DU X，et al.Adsorption equilibrium of CO2 and CH4 and their mixture on Sichuan Basin shale［J］.Energy & Fuels,2016,30(3):439-446.
［12］GANG B,YAN H J,XUE M L,et al.Quantitative experimental investigation of CO2 enhancement of the desorption rate of adsorbed CH4 in coal［J］.Energy Reports 6,2020，2336-2344.
［13］杨宏民,鲁小凯,陈立伟.不同注源气体置换-驱替煤层甲烷突破时间的差异性分析［J］.重庆大学学报:自然科学版,2018,41(2):96-102. YANG Hongmin,LU Xiaokai，CHEN Liwei.Analysis on the difference of breakthrough time of coal bed methane by gas displacement with different injection sources［J］.Journal of Chongqing University:Natural Science Edition,2018,41(2):96-102.
［14］杨宏民,霍晓阳,蒋滢滢.等压扩散和高压注入条件下CO2对煤中CH4置换效应［J］.中国安全生产科学技术,2017，13(8)：24-29. YANG Hongmin,HUO Xiaoyang，JIANG Yingying.Replacement effect of carbon dioxide to methane in coal under isobaric diffusion and high pressure injection conditions ［J］.Journal of Safety Science and Technology,2017，13(8)：24-29.
［15］唐书恒,汤达祯,杨起.二元气体等温吸附实验及其对煤层甲烷开发的意义［J］.地球科学-中国地质大学学报,2004,29(2):219-223. TANG Shuheng，TANG Dazhen，YANG Qi.Binary-Component gas adsorption isotherm experiments and their significance to exploitation of coalbed methane［J］.Earth Science Journal of China University of Geoscience,2004,29(2):219-223.
［16］杨天鸿,陈立伟,杨宏民,等.注二氧化碳促排煤层瓦斯机制转化过程实验研究［J］.东北大学学报(自然科学版),2020,41(5):623-628. YANG Tianhong,CHEN Liwei,YANG Hongmin,et al.Experimental study on the conversion process of promoting gas drainage mechanism by CO2 injection ［J］.Journal of Northeastern University(Natural Science),2020,41(5):623-628.

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备注/Memo

备注/Memo:
收稿日期： 2021-04-27；网络首发日期： 2021-11-22
* 基金项目： 辽宁省教育厅青年项目（LJ2019QL002）；辽宁工程技术大学学科创新团队项目（LNTU20TD-29）；辽宁省‘兴辽英才计划’项目（XLYC2008021）
作者简介： 韩光，博士，副教授，主要研究方向为矿山安全。
通信作者： 付志豪，硕士研究生，主要研究方向为矿井瓦斯防治。
更新日期/Last Update: 2022-09-19