Resistivity in Formation and Decomposition of Natural Gas Hydrate in Porous Medium

CIESC Journal ›› 2010, Vol. 18 ›› Issue (1): 39-42.

Resistivity in Formation and Decomposition of Natural Gas Hydrate in Porous Medium

李淑霞¹, 夏晞冉¹, 玄建¹, 刘亚平¹, 李清平²

1. College of Petroleum Engineering, China University of Petroleum, Qingdao 266555, China;
2. Technology Research Dept.CNOOC Research Center, Beijing 100027, China

收稿日期:2009-03-17 修回日期:2009-07-09 出版日期:2010-02-28 发布日期:2010-12-30
通讯作者: LI Shuxia, E-mail: lishuxia@upc.edu.cn
作者简介:
基金资助:
Supported by the National High Technology Research and Development Program of China(2006AA09A209)

Resistivity in Formation and Decomposition of Natural Gas Hydrate in Porous Medium

LI Shuxia1¹, XIA Xiran¹, XUAN Jian¹, LIU Yaping¹, LI Qingping²

1. College of Petroleum Engineering, China University of Petroleum, Qingdao 266555, China;
2. Technology Research Dept.CNOOC Research Center, Beijing 100027, China

Received:2009-03-17 Revised:2009-07-09 Online:2010-02-28 Published:2010-12-30
Supported by:
Supported by the National High Technology Research and Development Program of China(2006AA09A209)

摘要/Abstract

摘要： A new one-dimensional system for resistivity measurement for natural gas hydrate(NGH)exploitation is designed,which is used to study the formation and decomposition processes of NGH.The experimental results verify the feasibility of the measurement method,especially in monitoring the nucleation and growth of the NGH. Isovolumetric formation experiment of NGH is performed at 2℃ and 7.8 MPa.Before the NGH formation,the initial resistivity is measured to be 4-7Ω·m,which declines to the minimum value of 2-3Ω·m when NGH begins to nucleate after the pressure is reduced to 3.3 MPa.As the NGH grows,the resistivity increases to a great extent,and finally it keeps at 11-13Ω·m,indicating the completion of the formation process.The NGH decomposition experiment is then performed.When the outlet pressure decreases,NGH begins to decompose,accordingly,the resistivity declines gradually,and is at 5-9Ω·m when the decomposition process ends,which is slightly higher than the resistivity value before the formation of NGH.The occurrence and distribution uniformity of NGH are determined by the distribution and magnitude of the resistivity measured on an one-dimensional sand-packed model.This study tackles the accurate estimation for the distribution of NGH in porous medium,and provides an experimental basis for further study on NGH exploitation in the future.

关键词: resistivity, natural gas hydrate, formation, decomposition by depressurization

Abstract: A new one-dimensional system for resistivity measurement for natural gas hydrate(NGH) exploitation is designed,which is used to study the formation and decomposition processes of NGH.The experimental results verify the feasibility of the measurement method,especially in monitoring the nucleation and growth of the NGH. Isovolumetric formation experiment of NGH is performed at 2℃ and 7.8 MPa.Before the NGH formation,the initial resistivity is measured to be 4-7Ω·m,which declines to the minimum value of 2-3Ω·m when NGH begins to nucleate after the pressure is reduced to 3.3 MPa.As the NGH grows,the resistivity increases to a great extent,and finally it keeps at 11-13Ω·m,indicating the completion of the formation process.The NGH decomposition experiment is then performed.When the outlet pressure decreases,NGH begins to decompose,accordingly,the resistivity declines gradually,and is at 5-9Ω·m when the decomposition process ends,which is slightly higher than the resistivity value before the formation of NGH.The occurrence and distribution uniformity of NGH are determined by the distribution and magnitude of the resistivity measured on an one-dimensional sand-packed model.This study tackles the accurate estimation for the distribution of NGH in porous medium,and provides an experimental basis for further study on NGH exploitation in the future.

Key words: resistivity, natural gas hydrate, formation, decomposition by depressurization

李淑霞, 夏晞冉, 玄建, 刘亚平, 李清平. Resistivity in Formation and Decomposition of Natural Gas Hydrate in Porous Medium[J]. CIESC Journal, 2010, 18(1): 39-42.

LI Shuxia1, XIA Xiran, XUAN Jian, LIU Yaping, LI Qingping. Resistivity in Formation and Decomposition of Natural Gas Hydrate in Porous Medium[J]. , 2010, 18(1): 39-42.

参考文献

1 Boswell, R., “Resource potential of methane hydrate coming into focus”, J. Petroleum Sci. Eng., 56 (1-3), 9-13 (2007).
2 Zhang, B.Y., Wu, Q., Sun, D.L., “Effect of surfactant Tween on induction time of gas hydrate formation”, Journal of China University of Mining & Technology, 18 (1), 18-21 (2008).
3 Makogon, Y.F., Holditch, S.A., Makogon, T.Y., “Natural gas-hydrates— A potential energy source for the 21st Century”, J. Petroleum Sci. Eng., 56 (1-3), 14-31 (2003).
4 Kerr, R.A., “Gas hydrate resource: Smaller but sooner”, Science, 303 (5660), 946-947 (2004).
5 Buffett, B.A., Zatsepina, O.Y., “Formation of gas hydrate from dissolved gas in natural porous media”, Marine Geology, 164, 69-77 (2000).
6 Selim, M.S., Sloan, E.D., “Hydrate decomposition in sediment”, SPE Reservoir Engineering, 5, 245-251 (1990).
7 Sloan, E.D., Clathrate Hydrates of Natural Gases, Marcel Dekker, New York (1991).
8 Sung, W., Lee, H., Kim, S., Kang, H., “Experimental investigation of production behaviors of methane hydrate saturated in porous rock”, Energy Sources, 25, 845-856 (2003).
9 Gu, Y.D., Lin, W.Z., Zhang, J., Ye, Y.G., “Ultrasonic detecting technique for nature gas hydrates in sediment”, Ocean Technology, 24 (3), 49-52 (2005). (in Chinese)
10 Wright, J.F., Nixon, F.M., Dallimore, S.R., “A method for direct measurement of gas hydrate amounts based on the bulk dielectric properties of laboratory test media”, In：Proceedings of the Fourth International Conference on Gas Hydrate, Yokohama, Japan, 19-23 (2001).
11 Chen, Q., Liu, C.L., Ye, Y.G., Diao, S.B., Zhang, J., “Preliminary research about the nucleation of gas hydrate in porous media”, Acta Petrolei Sinica (Petroleum Processing Section), 24 (3), 345-349 (2008). (in Chinese)
12 Qiu, J.H., Guo, T.M., “Kinetics of methane hydrate formation in pure water”, Chem. Ind. Eng. (China), 49 (3), 383-386 (1998). (in Chinese)
13 Qiu, J.H., Guo, T.M., “Kinetics of methane hydrate formation in pure water and inhibitor containing systems”, Chin. J. Chem. Eng., 10 (3), 316-322 (2002).
14 Yan, L.J., Liu, J., Chen, G.J., “Kinetics of methane hydrate formation in active carbon”, Acta Petrolei Sinica (Petroleum Processing Section), 18 (3), 1-7 (2002). (in Chinese)
15 Sun, C.Y., Chen, G.J., Yue, G.L., “The induction period of hydrate formation in a flow system”, Chin. J. Chem. Eng., 12 (4), 527-531 (2004).
16 Zheng, X., Sun, Z.G., Fan, S.S., Zhang, C.S., Guo, Y.K., Kuo, K.H., “Experimental investigation of storage capacity of natural gas hydrate”, Natural Gas Industry, 23 (1), 95-97 (2003). (in Chinese)
17 Gao, J., Marsh, K.N., “Calorimetric determination of enthalpy of formation of natural gas hydrates”, Chin. J. Chem. Eng., 11 (3), 276-279 (2003).
18 Youslf, M.H., Sloan, E.D., “Experimental investigation of hydrate formation and dissociation in consolidated porous media”, SPE Reservoir Engineering, 11, 452-458 (1991).
19 Song, Y.C., Liang, H.F., Wang, Z., “Heat transfer analysis of natural gas hydrate decomposition by depressurization”, Journal of Petrochemical Universities, 21 (4), 45-54 (2008). (in Chinese)
20 Hao, Y.M., Bo, Q.W., Chen, Y.M., Li, S.X., “Laboratory investigation of pressure development of natural gas hydrate”, Petroleum Exploration and Development, 33 (2), 217-220 (2006). (in Chinese)
21 Sun, Z.G., Fan, S.S., Guo, K.H., Wang, Y.Z., “Determination of dissociation heat of natural gas hydrates”, Journal of Instrumental Analysis, 21 (3), 7-9 (2002). (in Chinese)

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Resistivity in Formation and Decomposition of Natural Gas Hydrate in Porous Medium

Resistivity in Formation and Decomposition of Natural Gas Hydrate in Porous Medium

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