Abstract
Microstructure test of lignite in Huainan Panyi Coal Mine by mercury intrusion method. According to the proportion of accumulated pore volume fraction in different radius range of coal, the pore size is classified. The pore structure characteristics of lignite at different temperatures are obtained by using the mercury retreat curve: with the increase of temperature, the trend of macropore growth is obvious. Based on the fractal dimension calculation principle of pore structure, the fractal dimension of various kinds of pore is calculated by linear regression: The fractal dimension of small pore is bigger than that of medium pore and large pore, which indicates that the pore structure of small pore is not uniform and the distribution of coal pore is dispersive at this stage.
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Bagde MN (2000) An investigation into strength and porous properties of metamorphic rocks in the Himalayas: a case study. Geotech Geol Eng 18(3):209–219
Cai YD, Liu DW, Pan ZJ, Yao YB, Li JQ, Qiu YK (2013) Pore structure and its impact on CH4 adsorption capacity and flow capability of bituminous and subbituminous coals from Northeast China. Fuel 103:258–268
Chen YL, Wang XL, Cao LY, He R (2011) Effects of fractal pore on coal devolatilization. In: International symposium on coal combustion, pp 175–180
Crosdale PJ, Beamish BB, Valix M (1998) Coalbed methane sorption related to coal composition Int. J Coal Geol 35:147–158
Fu XH, Qin Y, Xue XQ et al (2001) Re-search on fractals of pore and fracture-structure of coal reservoirs. J China Univ Min Technol 30(3):225–228 (in chinese)
Fu XH, Qin Y, Zhang WH et al (2005a) Fractal classification and natural classification of coal pore structure based on migration of coalbed methane. Chin Sci Bull 50(Supp):66–71 (in chinese)
Fu XM, Qin Y, Zhang WH et al (2005b) Fractal classification and natural classification of coal pores based on coalbed methane migration. Chin Sci Bull 50(S):51–55 (in chinese)
Fu XH, Qin Y, Zhang WH, Wei CT, Zhou RF (2005c) Fractal classification and natural classification of coal pore structure based on migration of coal bed methane. Chin Sci Bull 50(1):66–71
Fu HJ, Tang DZ, Xu T, Xu H, Tao S, Li S, Yin ZY, Chen BL, Zhang C, Wang LL (2017) Characteristics of pore structure and fractal dimension of low-rank coal: a case study of Lower Jurassic Xishanyao coal in the southern Junggar Basin, NW China. Fuel 193:254–264
Gong WL, Li C (2010) SEM image analysis of multi-scale anisotropic characteristics of coal and rock structures. J Rock Mech Eng 29(S):2681–2689 (in chinese)
Hodot BB (1966) Sandstone and gas outburst. Song Shizhao, Wang Youan, Translated. China Industrial Press, Beijing (in chinese)
Hu BL, Zhang ZL, Che Y et al (2002a) Research on characteristics of fractures of coal reservoirs porosity in the Odors Basin. J Huainan Inst Technol 22(4):1–4 (in chinese)
Hu YQ, Zhao YS, Yang D et al (2002b) Relationship between permeability and fractal dimension of coal mass. Chin J Rock Mech Eng 21(10):1452–1456 (in chinese)
Laskar MdAI, Kumar R, Bhattacharjee B (1997) Some aspects of evaluation of concrete through mercury Intrusion porosimetry. Cem Concr Res 27(1):93–105
Li J, Zhou F, Liu Y (2015) Effect of magmatic intrusion on coal pore characteristics and fractal research. J Min Sci 51(4):743–754
Liu YZ, Sheng JL, Ge RX et al (2007) Study on fractal character of rock mass discontinuity distribution and evaluation of rock mass quality. Rock Soil Mech 28(5):971–975
Liu B, Jin AB, Gao YT et al (2016) Construction method research on DFN model based on fractal geometry theory. Rock Soil Mech 37(S1):625–631
Liu Z, Yang H, Wang WY, Cheng WM, Xin L (2018) Experimental study on the pore structure fractals and seepage characteristics of a coal sample around a borehole in coal seam water infusion. Transp Porous Media 125(2):289–309
Ma XF, Zhang SC, Lang ZX (2004) Fractal dimension of pore structure calculated by piecewise regression method. J Pet Univ 28(6):54–60 (in chinese)
Mao YJ, Hu B, Wang L, Li Y (2018) Research on the fractal dimension of the orientation pole distribution for rock mass joint. Geotech Geol Eng 36(2):737–745
Neimark AV (1990) Calculating surface fractal dimensions of adsorbents. Adsorpt Sci Technol 7(4):210–219
Qin YP, Fu G (2000) Study on fractal characteristic of coal pore and its water absorbing property. J Coal Sci 25(1):55–59 (in chinese)
Qu SX, Zhang JH (1991) Fractal and fractal dimensions and their applications in geophysics. J Xi’an Pet Inst 6(2):47–49 (in chinese)
Wang WF, Xu L, Fu XH (2002) Study on pore structure of coal by fractal theory. Coal Geol China 14(2):26–33 (in chinese)
Wang YL, Cao ZL, Wang YZ (2006) Measurement of micropore distribution and porosity of paper by mercury pressure method. Pap Mak China 25(3):19–21 (in chinese)
Wu J (1994) Basic theory and practice of sandstone hydrocarbon generation in China. Sandstone Carbon Industry Publishing House, Beijing, pp 140–141 (in chinese)
Xie HP (1994) Estimation on rock joint roughness coefficient (JRC) by fractal feature. Sci China, Ser B 24(5):524–530
Xing DS, Yan WP (2007) Analysis to pore structure of typical semi-cokes by mercury porosimetry. J North China Electr Power Univ Nat Sci 34(5):57–63 (in chinese)
Yang CH, Guo Y, Shi XY, Li SY (2018) High pressure mercury intrusion porosimetry analysis of the influence of fractal dimensions on the permeability of tight sandstone oil reservoirs. Chem Technol Fuels Oils 54(5):641–649
Yao YB, Liu DM, Tang DZ, et al (2007) Fractal characterization of seepage-pores of coals from China: an investigation to permeability of coals. In: 12th Conference of int. association for mathematical geology. State Key Laboratory Geological Processes &Mineral Resources, Beijing, pp 415–420
Zhao AH, Liao Y, Tang XV (1998) Quantitative analysis of pore structure by fractal analysis. J China Coal Soc 23(4):439–442 (in chinese)
Zhao JL, Tang DZ, Qin Y, Xu H (2019) Fractal characterization of pore structure for coal macrolithotypes in the Hancheng area, southeastern Ordos Basin, China. J Pet Sci Eng 178:666–677
Acknowledgements
Funding was provided by National Natural Science Foundation of China (Grant Nos. 51504142, 51674157); the Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents (No. 2017RCJJ013); the First-class Discipline Construction Special Fund Project of College of Mining and Safety Engineering, Shandong University of Science and Technology (No. 01AQ02105); Taishan Scholar Talent Team Support Plan for Advantaged & Unique Discipline Areas; National Key R&D Program of China (No. 2018YFC0807900, 2018 YFC0807906); SDUST Research Fund (No. 2018TDJH102).
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Song, Y., Xie, J., Fu, H. et al. Pore Fractal Characteristics of Lignite at Different Temperatures Based on Mercury Intrusion Test. Geotech Geol Eng 37, 4837–4844 (2019). https://doi.org/10.1007/s10706-019-00943-9
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DOI: https://doi.org/10.1007/s10706-019-00943-9