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WANG Hao, SI Qing, LUO Xia, LI Feng. Comparative Study on Effect of Two Oxidants on Pore Characteristics of Lean Coal[J]. Safety in Coal Mines, 2020, 51(4): 1-4,9.
Citation: WANG Hao, SI Qing, LUO Xia, LI Feng. Comparative Study on Effect of Two Oxidants on Pore Characteristics of Lean Coal[J]. Safety in Coal Mines, 2020, 51(4): 1-4,9.

Comparative Study on Effect of Two Oxidants on Pore Characteristics of Lean Coal

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  • Published Date: April 19, 2020
  • To explore the influence of ammonium persulfate and chlorine dioxide on pore characteristics of lean coal and to optimize the oxidant which is more suitable for the coal reservoir reconstruction, lean coal samples from Daping Mine and Gaocheng Mine were collected for mercury injection experiment. The effects of ammonium persulfate and chlorine dioxide on porosity, fractal dimension, drainage pressure, pore volume, specific surface area and distribution of coal samples are discussed. The results show that chlorine dioxide can effectively improve the porosity of coal reservoir, reduce its specific surface area and fractal dimension, and ammonium persulfate may lead to a decrease in the overall porosity of coal reservoir, reduce the specific surface area of reservoir, and increase its fractal dimension. After the interaction of chlorine dioxide and ammonium persulfate, the proportion of large pore volume in coal sample increased, while the proportion of medium, small and micro pore volume decreased, making pores more uniform and the specific surface area of various pores did not change much. It is concluded that both chlorine dioxide and ammonium persulfate can oxidize and etch the reservoir of lean coal and reduce its methanophile ability. The effect of chlorine dioxide on desorption migration of CBM is better than that of ammonium persulfate.
  • [1]
    吴俊.煤微孔隙特征及其与油气运移储集关系的研究[J].中国科学:B辑,1993,23(1):77-84.
    [2]
    郭红玉,拜阳,夏大平,等.二氧化氯对煤储层物性改变的机理研究[J].煤田地质与勘探,2015,43(1):26.
    [3]
    李洁,赵立强,刘平礼,等.二氧化氯在油水井解堵增注中的作用[J].天然气勘探与开发,2009,32(1):67.
    [4]
    郭红玉,夏大平,苏现波,等.二氧化氯作为煤储层压裂液破胶剂的可行性实验研究[J].煤炭学报,2014, 39(5):908-912.
    [5]
    姜学明,刘明立,张学昌,等.二氧化氯与酸液协同解堵工艺与应用效果[J].石油勘探与开发,2002,29(6):103-104.
    [6]
    郭红玉,苏现波,陈俊辉,等.二氧化氯对煤储层的化学增透实验研究[J].煤炭学报,2013,38(4):633.
    [7]
    杨德敏,王兵,李永涛,等.过硫酸铵氧化处理高浓度含硫废水的研究[J].石油化工,2012,41(1):87-91.
    [8]
    张瑛洁,李大鹏,曹天静,等.零价铁活化过硫酸铵氧化降解苯酚的研究[J].工业水处理,2012,32(9):13.
    [9]
    郭广军,周利英,何建平,等.瓜尔胶及其衍生物的过硫酸铵氧化降解研究[J].化学研究与应用,2010,22(12):1546-1550.
    [10]
    王平,李强.生物酶与过硫酸铵对羟丙基瓜胶压裂液破胶的对比研究[J].中国高新技术企业,2013(9):26-27.
    [11]
    戚灵灵,王兆丰,杨宏民,等.基于低温氮吸附法和压汞法的煤样孔隙研究[J].煤炭科学技术,2012,40(8):36-39.
    [12]
    唐书恒,蔡超,朱宝存,等.煤变质程度对煤储层物性的控制作用[J].天然气工业,2008,28(12):30-33.
    [13]
    吴俊.中国煤成烃基本理论与实践[M].北京:煤炭工业出版社,1994:148-149.
    [14]
    傅雪海,秦勇,薛秀谦,等.煤储层孔、裂隙系统分形研究[J].中国矿业大学学报,2001(3):225-228.
    [15]
    Friesen W I, Mikula R J. Fractal dimensions of coal particles[J]. Journal of Colloid and Interface Science, 1987, 20(1): 263-271.
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