Experimental Investigation into Factors Influencing Methane Hydrate Formation and a Novel Method for Hydrate Formation in Porous Media

The behaviors of methane hydrate formation in porous media are investigated in three-dimensional vessels. The effects of the fugacity difference, the water-gas ratio, and the volume of the vessel on the formation rate of methane hydrate are studied. The results show that the formation rates are disproportionate to the fugacity differences but in proportion to the volume of the vessel and the change of the initial gas-water ratio has little effect on the rate of hydrate formation. Meanwhile, according to the discussion about the temperatures and resistances in hydrate reservoir, it is confirmed that methane hydrate forms from the boundaries to the center of the vessel. Furthermore, a new method is designed to form methane hydrate samples in porous sediments with high hydrate/water saturation and low gas saturation.

[1]  S. Ren,et al.  Acoustic velocity and electrical resistance of hydrate bearing sediments , 2010 .

[2]  Seiya Hirohama,et al.  Conversion of CH4-Hydrate to CO2-Hydrate in Liquid CO2 , 1996 .

[3]  Gang Li,et al.  Experimental investigation into methane hydrate production during three-dimensional thermal huff and puff , 2011 .

[4]  Bo Li,et al.  Experimental study on gas production from methane hydrate in porous media by huff and puff method in Pilot-Scale Hydrate Simulator , 2012 .

[5]  George J. Moridis,et al.  The use of huff and puff method in a single horizontal well in gas production from marine gas hydrate deposits in the Shenhu Area of South China Sea , 2010 .

[6]  Gang Li,et al.  Gas hydrate equilibrium dissociation conditions in porous media using two thermodynamic approaches , 2008 .

[7]  K. Wallmann,et al.  Methane formation at Costa Rica continental margin—constraints for gas hydrate inventories and cross-décollement fluid flow , 2005 .

[8]  Gang Li,et al.  Experimental Investigation into the Production Behavior of Methane Hydrate in Porous Sediment by Depressurization with a Novel Three-Dimensional Cubic Hydrate Simulator , 2011 .

[9]  Marco J. Castaldi,et al.  Down-hole combustion method for gas production from methane hydrates , 2007 .

[10]  George J. Moridis,et al.  Methane hydrate formation and dissociation in a partially saturated core-scale sand sample , 2005 .

[11]  Sung Chan Nam,et al.  Gas Hydrate Formation in a Variable Volume Bed of Silica Sand Particles , 2009 .

[12]  R. Boswell,et al.  Current perspectives on gas hydrate resources , 2011 .

[13]  Carolyn A. Koh,et al.  Clathrate hydrates of natural gases , 1990 .

[14]  E. D. Sloan,et al.  Mechanisms and Kinetics of Hydrate Formation , 1994 .

[15]  S. Fan,et al.  Use of Electrical Resistance to Detect the Formation and Decomposition of Methane Hydrate , 2007 .

[16]  Goodarz Ahmadi,et al.  Production of natural gas from methane hydrate by a constant downhole pressure well , 2007 .

[17]  Xiao-Sen Li,et al.  Production behavior of methane hydrate in porous media using huff and puff method in a novel three-d , 2011 .

[18]  Xiao-Sen Li,et al.  Experimental Investigation of Production Behavior of Methane Hydrate under Ethylene Glycol Injection in Unconsolidated Sediment , 2007 .

[19]  Kishore K. Mohanty,et al.  Kinetic simulation of methane hydrate formation and dissociation in porous media , 2006 .

[20]  E. D. Sloan,et al.  Melt growth of tetrahydrofuran clathrate hydrate and its inhibition: method and first results , 1997 .

[21]  Paul A Hsieh,et al.  Scientific basis for safely shutting in the Macondo Well after the April 20, 2010 Deepwater Horizon blowout , 2012, Proceedings of the National Academy of Sciences.

[22]  Qing Yuan,et al.  A three-dimensional study on the formation and dissociation of methane hydrate in porous sediment by depressurization , 2012 .

[23]  E. D. Sloan,et al.  Fundamentals and applications of gas hydrates. , 2011, Annual review of chemical and biomolecular engineering.

[24]  Bo Li,et al.  Numerical Simulation of Gas Production from Natural Gas Hydrate Using a Single Horizontal Well by Depressurization in Qilian Mountain Permafrost , 2012 .

[25]  Kefeng Yan,et al.  Experimental Investigation into the Production Behavior of Methane Hydrate in Porous Sediment with Hot Brine Stimulation , 2008 .

[26]  Marco J. Castaldi,et al.  Experimental Investigation of Methane Gas Production from Methane Hydrate , 2009 .

[27]  Gang Li,et al.  Experimental Investigations into Gas Production Behaviors from Methane Hydrate with Different Methods in a Cubic Hydrate Simulator , 2012 .

[28]  T. Minshull,et al.  The effect of hydrate content on seismic attenuation: A case study for Mallik 2L‐38 well data, Mackenzie delta, Canada , 2004 .

[29]  Soon-Il An,et al.  Interdecadal changes in the El Nino–La Nina asymmetry , 2004 .

[30]  E. D. Sloan,et al.  Fundamental principles and applications of natural gas hydrates , 2003, Nature.

[31]  Bjørn Kvamme,et al.  Kinetics of Hydrate Formation From Nucleation Theory , 2002 .

[32]  Gang Li,et al.  Experimental investigation into gas production from methane hydrate in sediment by depressurization in a novel pilot-scale hydrate simulator , 2012 .