The dynamic evolution model and experimental study of gas permeability under multiple factors

The dynamic evolution model and experimental study of gas permeability under multiple factors

Guangzhong SunRunlin Zhang Kunyun Tian 

School of Safety Engineering, Henan Institute Engineering, Zhengzhou, Henan 451191, China

School of Resources and Safety Engineering, Central South University, Changsha, Hunan, 410006, China

Key Laboratory of Coal Mine Safety Training in Henan Province, Zhengzhou, Henan 451191, China

Corresponding Author Email:
11 October 2017
22 December 2017
31 March 2018
| Citation



This paper aims to ascertain the relationship between permeability and temperature of gas-filled coal. For this purpose, the author probed into various influencing factors of permeability, and constructed a permeability evolution model involving temperature, effective stress, gas pressure and humidity. Then, the proposed model was improved through an experimental research using thermal-fluid-solid coupling triaxial seepage test device. It is found that the theoretical results of the model agree well with the experimental data, indicating that the improved model is an ideal tool for predicting the gas flow pattern. The research results lay a solid basis for enhancing gas drainage efficiency and preventing gas outburst.


coal seam gas, permeability model, effective stress, temperature

1. Introduction
2. Influencing Factors of Permeability
3. Section Headings
4. Correction of Dynamic Evolution Model of Coal Permeability
5. Experiment Verification and Analysis
6. Model Analysis
7. Conclusions

[1] Harpalani S, Chen G. (1997). Influence of gas production induced volumetric strain on permeability of coal. Geotechnical & Geological Engineering 15(4): 303-325. 10.1007/BF00880711

[2] Shi J, Durucan S. (2005). A model for changes in coalbed permeability during primary and enhanced methane recovery. SPE Reservoir Evaluation & Engineering 8(4): 291 -299. 10.2118/87230-PA

[3] Cui X, Bustin RM, Chikatamarla L. (2007). Adsorption-induced coal swelling and stress: Inplications for methane production and acid gas sequestration into coal seams. Journal of Geophysical Research: Solid Earth (1978-2012). 112(B10). 10.1029/2004JB003482

[4] McKee CR, Bumb AC, Koenig RA. (1988). Stress-dependent permeability and porosity of coal and other geologic formations. SPE Formation Evaluation 3(1): 81 -91. 10.2118/12858-PA

[5] Tao YQ, Xu J, Cheng MW. (2009). Experimental study of of influencing factor of porosity and effective stress of gas-filled coal. Chinese Journal of Rock Mechanics and Engineering 28(s2): 3363-3370. 10. 13722/ j. cnki. jrme. 2009. 0368 

[6] Wei JP, Qin HJ, Wang DK. (2015). Dynamic permeability model for coal containing gas. Journal of China Coal Society 40(7): 1555-1561. 10.13225 /j. cnki. jccs. 2014.1376

[7] Zhao YS, Hu YQ, Yang D. (1999). The experimental study on the gas seepage law of rock related to adsorption under 3D stresses. Chinese Journal of Rock Mechanics and Engineering 18(6): 651–653. 10. 13722/ j. cnki. jrme. 1999. 0323

[8] Tang JP, Pan YS, Li CQ. (2006). Experimental study on effect of effective stress on desorption and seepage of coal bed methane. Chinese Journal of Rock Mechanics and Engineering 25(8): 1563-1568. 10. 13722/ j. cnki. jrme. 2006. 1347

[9] Erzaghi K. (1943). Theoretical soil mechanics[M]. New York.

[10] Biot MA. (1941). Generalized theory of three-dimensional consolidation. Journal of Applied Physics 12(2): 155-164. 

[11] Yao YP. (1988). The effect to the deformation and strength of coal adsorption gas. coal mine safety (12): 37-41.

[12] Γaibini A, Bobin BA, Goermluof AA. (1986). Experiment data analysis of CH4 and CO in the coal body equilibrium adsorption. The Soviet Mining Science (3): 246-253.

[13] Song WT, Ren B, Wang WJ, Zhang M, Zhang YA. (2017). Non-destructive testing of residual stress in mechanical components based on ultrasonic lcr wave. Journal of Manufacturing Engineering 15(3): 72-77.

[14] Wu SY, Zhao W. (2005). Analysis of effective stress in adsorbed methane-coal system. Chinese Journal of Rock Mechanics and Engineering 24(10): 1674-1678. 10. 13722/ j. cnki. jrme. 2005. 1367

[15] Ettinger IL. (1979). Swelling stress in the gas-coal system as an energy source in the development of gas bursts. Soviet Mining Science 15(5): 494-501.

[16] Somerton WH, Gupta VS. (1965). Role of fluxing agents in themal alteration of sandstones. Journal of Petroleum Technology. 35(4): 585-588

[17] Morrow C. (1981). Permeability of granite in a temperature gradient. Journal of Geophysical Research. 86(B4): 3002-3008. 10.1029/JB086iB04p03002

[18] Li ZQ, Xian XF. (2009). Study on experiment of coal permeability with temperature and stress changing. Journal of Liaoning Technical University 28(Suup.): 156-159. 10.11956/j.issn.1008-0562.2009.012.032

[19] Yang JP, Chen WZ, Tian HM. (2009). Study of permeability evolutions in low permeability media under different stresses and temperatures. Rock and Soil Mechanics 30(12): 3587-3594. 10. 16285/ j. rsm.. 2009. 12. 037.

[20] Yang XL, Zhang YL. (2008). Experimental study of effect of temperature on coal gas permeability under gas-solid coupling. Journal of Geomechanics 14(4): 374-380. 10. 12090 /j. issn. 1006 - 6616. 2008. 14. 04. 036.

[21] Chen SY, Qing Y, Shen J. (2014). Temperature-stress sensitivity of high-rank coal permeability. Journal of China Coal Society 39(9): 1845-1851. 10. 13225 /j. cnki.  jccs. 2013. 1454.

[22] Jiang YD, Yang XY, Xian XF. (2010). The infiltration equation of coal bed under the cooperation of stress field, temperature fieldand sound field. Journal of China Coal Society 35(3): 434-438. DOI: 10. 13225/j . cnki. jccs. 2010.03.025

[23] Yu YJ, Zhang H, Zhang CH. (2013). Effects of temperature and stress on permeability of Standard coal briquette specimen. Journal of China Coal Society 38(6): 936-941. 10.13225/j.cnki.jccs.2013.06.029

[24] Yang YZ, Yang LZ. (2005). Mechanism of effects of temperature and effective stress on permeability of sandstone. Chinese Journal of Rock Mechanics and Engineering 24(14): 2420-2427. 10. 13722/ j. cnki. jrme. 2005. 1635

[25] He YL, Yang YZ. (2004). Testing study concerning the effect of temperature and effective stress on permeability of sandstone. Coal Geology&Exploratio 32(2): 36-38. 10.3969/j.issn.1001-1986. 2004. 02. 023

[26] Liu XJ, Gao H, Liang LX. (2011). Study of temperature and confining pressure effects on porosity and permeability in low permeability sandstone. Chinese Journal of Rock Mechanics and Engineering 30(suup.2): 3771-3778. 10. 13722/ j. cnki. jrme. 2011. 0618

[27] Guo X, Du ZM, Jiang YW. (2014). Temperature and pressure effects on gas-water relative permeability. Natural gas industry 34(6): 60-64. 10.3787/j.issn.1000-0976.2014.06.010

[28] Liang B, Gao HM, Lan YW. (2001). Theoretical analysis and experimental study on relation between rock permeability and temperature. Chinese Journal of Rock Mechanics and Engineering 24(12): 2009-2012. 10. 13722/ j. cnki. jrme. 2001. 0417

[29] Dai YH, Chen WZ, Wu GJ. (2008). Study on elastoplastic damage model of unsaturated rock mass and its application. Chinese Journal of Rock Mechanics and Engineering 27(4): 728-735. 10. 13722/ j. cnki. jrme. 2008. 1632

[30] Tian KY, Zhang RL. (2014). Research on triaxial stress seepage experiment device loaded by high pressure water and negative pressure. Rock and Soil Mechanics 35(11): 3338-3343. 10. 16285/ j. rsm. 2014. 11. 026

[31] Sun GZ, Wang GZ, Zhang RL. (2016). Experimental study on response law of permeability of tectonic coal samples to temperature variation. rock and soil mechanics 37(4): 1042–1048. 10. 16285/ j. rsm.. 2016. 04. 017.

[32] Doruk OR. (2017). Control of hopf bifurcations in hodgkin-huxley neurons by automatic temperature manipulation, NeuroQuantology 16(1): 59-74. 10.14704/nq.2018.16.2.1140

[33] Medina YC, Khandy NH, Fonticiella OMC, Morales OFG. (2017). Abstract of heat transfer coefficient modelation in single-phase systems inside pipes. Mathematical Modelling of Engineering Problems 4(3): 126-131. 10.18280/mmep.040303

[34] Sun PD. (2001). Testing study on coal specimen permeability during solid deformation process. Chinese Journal of Rock Mechanics and Engineering 20(Supp.1): 1801–1804. 13722/ j. cnki. jrme. 2001. 0216