研究论文

注CO2置换煤层CH4试验研究

  • 王晋 ,
  • 王延斌 ,
  • 范晶晶 ,
  • 刘成龙 ,
  • 薛培
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  • 中国矿业大学(北京)地球科学与测绘工程学院, 北京100083
王晋,博士研究生,研究方向为煤层气开发地质,电子信箱:wangjin870326@163.com

收稿日期: 2015-03-30

  修回日期: 2015-06-11

  网络出版日期: 2015-09-12

基金资助

国家科技重大专项(2011ZX05042-003-001,2011ZX05034-005)

Experimental study on coal-bed methane displacement by carbon dioxide injection

  • WANG Jin ,
  • WANG Yanbin ,
  • FAN Jingjing ,
  • LIU Chenglong ,
  • XUE Pei
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  • College of Geoscience and Surveying Engineering, China University of Mining&Technology, Beijing 100083, China

Received date: 2015-03-30

  Revised date: 2015-06-11

  Online published: 2015-09-12

摘要

利用屯留矿和寺河矿圆柱体原煤试样,进行不同注入压力条件下注CO2置换CH4试验,研究分析了置换过程中气体的吸附特性及注入压力对CO2置换效果的影响,提出了低孔隙压力条件时具有更好的置换效果。研究结果表明,同等条件下,置换平衡后煤体吸附CO2气体能力远强于CH4;煤体中CH4体积比随注入压力的降低而减小,而CO2体积比则呈现相反趋势;在8 MPa围压条件下,随着注入压力的升高,CH4产出率呈线性关系降低,CO2置换比呈指数关系减小,显示出在试验压力范围内,低压条件下的CO2置换效果更佳;同等条件时,相对于试验中的无烟煤,贫瘦煤置换效果更好。

本文引用格式

王晋 , 王延斌 , 范晶晶 , 刘成龙 , 薛培 . 注CO2置换煤层CH4试验研究[J]. 科技导报, 2015 , 33(17) : 84 -89 . DOI: 10.3981/j.issn.1000-7857.2015.17.009

Abstract

This study used the cylinder raw coal samples from Tunliu coal mine and Sihe coal mine to carry out the displacement of CH4 with CO2 experiment under the different injection pressures. Analyzed the gas adsorption characteristics in the experiment and the influence of injection pressures on the replacement of with CO2, and proposed that replacement effect was better at low pore pressure. The results are as follows. Adsorption capacity of CO2 is stronger than that of CH4 under the same condition in the process of displacement; CH4 volume ratio decreases with injection pressure decreasing, while CO2 volume ratio shows the opposite trend; When the confining pressure is 8 MPa, the CH4 output ratio reduces with linear relation and the replacement ratio of CO2 reduces with exponential relation as injection pressure increases, and indicating that the replacement is better at low injection pressure in this displacement experimental; The replacement effect of meager lean coal sample is better than anthracite under the same conditions in this experimental.

参考文献

[1] Hall F E, Zhou C H, Gasem K A M, et al. Adsorption of pure methane, nitrogen, and carbon dioxide and their binary mixtures on wet fruitland Coal[C]. 1994, SPE 29194:329-344.
[2] Busch A, Krooss B M, Gensterblum, Y, et al. High-pressure adsorption of methane, carbon dioxide and their mixtures on coals with a special focus on the preferential sorption behaviour[J]. Journal of Geochemical Exploration, 2003, 78-79(8):671-674.
[3] Stantion R, Flores R, warwick D, et al. Coal bed sequestration of carbon dioxide[C]//Proceeding from the First National Conference on Carbon Sequestration. Washington, DC, US Department of Energy, National Energy Technology Laboratory, 2001:14-17.
[4] 李向东, 冯启言, 刘波, 等. 注入CO2驱替煤层甲烷的试验研究[J]. 洁 净煤技术, 2009, 16(2):101-102. Li Xiangdong, Feng Qiyan, Liu Bo, et al. Study of displacement coalbed methane by carbon dioxide injection[J]. Clean Coal Technology, 2009, 16(2):101-102.
[5] Fulton P F, Parente C A, Rogers B A, et al. A laboratory investigation of enhanced recovery of methane from coal by carbon dioxide injection[C]. SPE on Unconventional Gas Recovery Symposium, 18-21 May, Pittsburgh, 1980.
[6] Wong S, Law F, Deng X, et al. Enhanced coalbed methane and CO2 storage in anthracite coals-micro-pilot test at South Qinshui, Shaanxi, China[J]. International Journal of Greenhouse Gas Control, 2007, 1(2):215-222.
[7] Mazumder S, Wolf K H A A, van Hamert P, et al. Laboratory experiments on environmental friendly means to improve coalbed methane production by carbon dioxide/flue gas injection[J]. Transport in Porous Media, 2008, 75(1):63-92.
[8] Jessen K, Tang G Q, Kovscek A R. Laboratory and simulation investigation of enhanced coalbed methane recovery by gas injection[J]. Transport in Porous Media, 2008, 73(2):141-159.
[9] Dutka B, Kudasik M, Topolnicki J. Pore pressure changes accompanying exchange sorption of CO2/CH4 in a coal briquette[J]. Fuel Processing Technology, 2012, 100(4):30-34.
[10] Dutka B, Kudasik M, Pokryszka Z, et al. Balance of CO2/CH4 exchange sorption in a coal briquette[J]. Fuel Processing Technology, 2013, 106 (2):95-101.
[11] Qin Y. Mechanism of CO2 enhanced CBM recovery in China:A review[J]. Journal of China University of Mining & Technology, 2008, 18(3):406-412.
[12] 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, 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, 2004, 29(2):219-223.
[13] 唐书恒, 马彩霞, 叶建平, 等. 注CO2提高煤层甲烷采收率的试验模 拟[J]. 中国矿业大学学报, 2006, 35(5):607-611. Tang Shuheng, Ma Caixia, Ye Jianping, et al. A modeling experiment of enhancing coalbed methane recovery by carbon dioxide injection[J]. Journal of China University of Mining and Technology, 2006, 35(5):607-611.
[14] 梁卫国, 吴迪, 赵阳升. CO2驱替煤层CH4试验研究[J]. 岩石力学与工 程学报, 2010, 29(4):665-673. Liang Weiguo, Wu Di, Zhao Yangsheng. Experimental study of coalbeds methane replacement by carbon dioxide[J].Chinese Journal of Rock Mechanics and Engineering, 2010, 29(4):665-673.
[15] Liang W, Zhao Y, Wu D. Experiments on methane displacement by carbon dioxide in large coal specimens[J]. Rock Mechanics and Rock Engineering, 2011, 44(5):579-589.
[16] 于洪观, 范维唐, 孙茂远, 等. 煤对CH4/CO2二元气体等温吸附特性 及其预测[J]. 煤炭学报, 2005, 30(5):619-622. Yu Hongguan, Fan Weitang, Sun Maoyuan, et al. Characteristics and predictions for adsorption isotherms of methane/carbon dioxide binary gas on coals[J]. Journal of China Coal Society, 2005, 30(5):618-622.
[17] 冯启言, 周来, 陈中伟, 等. 煤层处置CO2的二元气-固耦合数值模拟[J]. 高校地质学报, 2009, 15(1):63-68. Feng Qiyan, Zhou Lai, Chen Zhongwei, et al. Numerical simulation of coupled binary gas-solid interaction during carbon dioxide sequestration in a coal bed[J]. Geological Journal of China University, 2009, 15(1):63-68.
[18] Arri L E, Yee D, Morgan W D, et al. 煤层甲烷产量的二元气体吸附 模拟[M]. 宋党育, 译. 徐州:中国矿业大学出版社, 1996:130-141. Arri L E, Yee D, Morgan W D, et al. Modeling coal bed methane production with binary gas sorption[M]. Song Dangyu, trans. Xuzhou:China University of Mining and Technology Press, 1996:130-141.
[19] 吴建光, 叶建平, 唐书恒. 注入CO2提高煤层气产能的可行性研究[J]. 高校地质学报, 2004, 10(3):463-467. Wu Jianguang, Ye Jianping, Tang Shuheng. A feasibility study on CO2 injection for enhancing the coalbed methane recovery[J]. Geological Journal of China University, 2004, 10(3):463-467.
[20] 傅雪海, 秦勇, 韦重韬. 煤层气地质学[M]. 徐州:中国矿业大学出版 社, 2007:71-79. Fu Xuehai, Qin Yong, Wei Chongtao. Coalbed gas geology[M]. Xuzhou:China University of Mining and Technology Press, 2007:71-79.
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