ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Journal of Porous Media
インパクトファクター: 1.49 5年インパクトファクター: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

巻:
巻 23, 2020 巻 22, 2019 巻 21, 2018 巻 20, 2017 巻 19, 2016 巻 18, 2015 巻 17, 2014 巻 16, 2013 巻 15, 2012 巻 14, 2011 巻 13, 2010 巻 12, 2009 巻 11, 2008 巻 10, 2007 巻 9, 2006 巻 8, 2005 巻 7, 2004 巻 6, 2003 巻 5, 2002 巻 4, 2001 巻 3, 2000 巻 2, 1999 巻 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.2019028820
pages 499-510

MATHEMATICAL MODEL FOR ISOTHERMAL ADSORPTION OF SUPERCRITICAL SHALE GAS

Zuping Xiang
Department of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
Hongbin Liang
Department of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
Zhilin Qi
Department of Petroleum Engineering, Chongqing Key Laboratory of Complex Oil & Gas Fields Exploration and Development, Chongqing University of Science & Technology, Chongqing, P.R. China, 401331
Qianhua Xiao
Department of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, China
Wende Yan
Chongqing Key Laboratory of Complex Oil & Gas Fields Exploration and Development, Chongqing University of Science & Technology, Shapingba, Chongqing, China
Baosheng Liang
Chevron North America Exploration and Production, 1400 Smith Street, Houston, Texas 77002, USA; The University of Texas at Austin, USA
Qiutian Guo
Department of Petroleum Engineering, Chongqing University of Science and Technology, Chongqing 401331, China

要約

Shale gas adsorption under reservoir conditions belongs to supercritical adsorption in general, while the current adsorption models are constructed under subcritical conditions. Laboratory measurements of shale gas densities have demonstrated that temperature and pressure have a significant impact on supercritical shale gas density and therefore adsorption volume, leading to the importance of considering the influence of the supercritical state on the calculation of shale gas adsorption volume in the shale gas isothermal adsorption model. In this paper, we modified the Dubibin-Astakhov (D-A) model and built an isothermal adsorption mathematical model of supercritical shale gas using the change of bulk gas density to represent adsorption volume and replacing the saturated vapor pressure of the D-A equation with the maximum pressure of supercritical adsorption determined from a linear method in the low-pressure region. Our examples show that the proposed model is a good fit with the data. The potential energy distribution on the absorbent surface calculated from the modified model illustrates that supercritical shale gas adsorption is performed inside micropores. When the temperature increases, the maximum adsorption volume of the micropores decreases and the adsorption phase density increases, while the characteristic adsorption energy is stable.

参考

  1. Clarkson, C. and Haghshenas, B., Modeling of Supercritical Fluid Adsorption on Organic-Rich Shales and Coal, paper SPE 164532 presented at SPE USA Unconventional Resources Conf., The Woodlands, TX, April 10–12, 2013.

  2. Cui, Y., Adsorption of CH<sub>4</sub>, N<sub>2</sub>, CO<sub>2</sub> Single and Multicomponent Gas on Coal, PhD, Xi’an Branch of China Coal Research Institute, 2003.

  3. Dubinin, M. and Astakhov, V., Development of the Concepts of Volume Filling of Micropores in the Adsorption of Gases and Vapors by Microporous Adsorbents, Russ. Chem. Bull., vol. 20, no. 1, pp. 3–7, 1971.

  4. Dubinin, M. and Stoeckli, H., Homogeneous and Heterogeneous Micropore Structures in Carbonaceous Adsorbents, J. Colloid Interface Sci., vol. 75, no. 1, pp. 34–42, 1980.

  5. Kondo, S., Ishikawa, T., and Abe, I., Adsorption Science, Beijing: Chemical Industry Press, pp. 32–51, 2006.

  6. Li, J., Zhang, L., and Chen, Y., Adsorption Behavior Study of Shale Gas: Models and New Combination Approach, paper SPE 76880 presented at SPE Asia Pacific Unconventional Resources Conf. and Exhibition, Brisbane, Australia, Nov. 9–11, 2015.

  7. Li, S., Zhou, Y., and Liu, J., Physical Chemistry, Beijing: Higher Education Press, pp. 477–478, 2009.

  8. Li, Z., Research of Shale Pore-Permeability Characteristic and Microscopic Gas Slippage Mechanism in Shale Gas Reservoir, PhD, China University of Geosciences (Beijing), 2013.

  9. Ma, X., Liu, S., Jiang, L., Tian, H., and Hao, J., Quantitative Analysis on Affecting Factors of Gas Adsorption Capacity Measurement on the Shale, Nat. Gas Geosci., vol. 27, no. 3, pp. 488–493, 2016.

  10. Myers, A., Thermodynamics of Adsorption in Porous Materials, AIChE J., vol. 48, no. 1, pp. 145–160, 2002.

  11. Pang, Y., Soliman, M., Deng, H., and Emadi, H., Effect of Methane Adsorption on Stress-Dependent Porosity and Permeability in Shale Gas Reservoirs, paper SPE 180260 presented at SPE Low Perm Symp., Denver, CO, May 5–6, 2016.

  12. Xiang, Z., Li, Z., Chen, C., Liu, L., Huang, X., Xiao, Q., Liang, H., and Guo, Q., Selection of Shale Gas State Equation for Volumetric Isothermal Adsorption Experiments, Nat. Gas Ind., vol. 36, no. 8, pp. 73–78, 2016.

  13. Xiong, J., Liu, X., Liang, L., and Lei, M., Improved Dubibin-Astakhov Model for Shale-Gas Supercritical Adsorption, Acta Petrolei Sin., vol. 36, no. 7, pp. 849–857, 2015.

  14. Yang, F., Ning, Z., Zhang, R., Li, H., Zhao, T., and He, B., Adsorption Isotherms Process of Methane on Gas Shales, J. China Coal Soc., vol. 39, no. 7, pp. 1327–1332, 2014.

  15. Yang, S., Wu, W., Xu, J., Ji, D., and Chen, Z., Volume Effects on Methane-Shale Adsorption under Reservoir Conditions, paper SPE 180076 presented at SPE Europec Featured 78th EAGE Conf. and Exhibition, Vienna, Austria, May 30–June 2, 2016.

  16. Yu, W., Sepehrnoori, K., and Patzek, T., Modeling Gas Adsorption in Marcellus Shale with Langmuir and BET Isotherms, SPE J., vol. 21, no. 2, pp. 589–600, 2016.

  17. Zhang, D., Zhang, L., Zhao, Y., and Guo, J., A Composite Model to Analyze the Decline Performance of a Multiple Fractured Horizontal Well in Shale Reservoirs, J. Nat. Gas Sci. Eng., vol. 26, pp. 999–1010, 2015.

  18. Zhang, L., Gao, J., Hu, S., Guo, J., and Liu, Q., Five-Region Flow Model for MFHWs in Dual Porous Shale Gas Reservoirs, J. Nat. Gas Sci. Eng., vol. 33, pp. 1316–1323, 2016.

  19. Zhao, T., Li, X., Zhao, H., and Dou, X., Micro-Storage State and Adsorption Behavior of Shale Gas, paper SPE 178386 presented at SPE Nigeria Annual Int. Conf. and Exhibition, Lagos, Nigeria, Aug. 4–6, 2015.

  20. Zhao, Z., Application Principle of Adsorption, Beijing: Chemical Industry Press, pp. 121–122, 2005.

  21. Zhou, L. and Zhou, Y., Linearization of Adsorption Isotherms for High Pressure Applications, Chem. Eng. Sci., vol. 53, no. 14, pp. 2531–2536, 1998.