Experimental Characterization of Production Behaviour Accompanying the Hydrate Reformation in Methane-Hydrate-Bearing Sediments
- Taewoong Ahn (Korea Institute of Geoscience and Mineral Resources) | Changhyup Park (Kangwon National University) | Jaehyoung Lee (Korea Institute of Geoscience and Mineral Resources) | Joo M. Kang (Seoul National University) | Hieu T. Nguyen (Seoul National University)
- Document ID
- Society of Petroleum Engineers
- Journal of Canadian Petroleum Technology
- Publication Date
- January 2012
- Document Type
- Journal Paper
- 14 - 19
- 2012. Society of Petroleum Engineers
- 4.3.1 Hydrates
- hydrate reformation, dissociation, methane hydrate, hot-brine injection, production behavior
- 0 in the last 30 days
- 461 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 12.00|
|SPE Non-Member Price:||USD 35.00|
This paper experimentally analyzes the production characteristics of hot-brine stimulation accompanying hydrate reformation in the presence of methane hydrate. Many attempts have been made to recover methane hydrate commercially, such as depressurization, thermal stimulation, and inhibitor injection. Hot-brine injection coupled with thermal recovery with inhibitor injection has been investigated as an efficient production scheme, but the hydrate reformation during the dissociation is problematic, and it negatively influences the recovery rate.
An experimental apparatus divided the sediment sample into 12 blocks not only to describe 1D dissociation effectively but also to control the temperature accurately. The specified amount of methane hydrate was formed artificially in unconsolidated and packed sediments where the average particle size, absolute permeability, and porosity were 260 µm, 4.4 darcies, and 42%, respectively. The production trends were observed in the temperature range of approximately 283.85 - 303.15 K and with injection rates of 10 and 15 cm3/min. Methane hydrate reformed in all the tests; the reason for this may be the recombination of water and the dissociated methane in the downstream zones. In the early time, the production rate was low, but it increased significantly in later time. The former was why most of gas that dissociated in the upstream zones was consumed to reform hydrate in the downstream areas, while the latter came from the dissociation of initial and reformed hydrate. The dissociation front moved fast at the higher temperature and injection rate. The production efficiency of the test at 15 cm3/min and 294.55 K was similar to that of the test at 10 cm3/min and 303.15 K. The results confirmed the production behaviour of methane hydrate under the reformation phenomenon and could provide the fundamentals to develop an efficient production scheme based on hot-brine stimulation.
|File Size||2 MB||Number of Pages||6|
Ahn, T., Kang, J.M., Lee, J., and Park, C. 2010. ExperimentalInvestigation of Methane Hydrate Reformation Under Dissociation Process.Int. J. Offshore Polar Eng. 20 (1): 68-71.
Circone, S., Stern, L.A., and Kirby, S.H. 2004. The Role of Water in GasHydrate Dissociation. The Journal of Physical Chemistry B 108 (18): 5747-5755. http://dx.doi.org/10.1021/jp0362584.
Kamata, Y., Ebinuma, T., Ota, M. et al. 2005. Decomposition Experiment ofMethane Hydrate Sediment by Thermal Recovery Method. Paper presented at the 5thInternational Conference on Gas Hydrates, Trondheim, Norway, 13-16 June.
Kamath, V.A. and Godbole, S.P. 1987. Evaluation of Hot Brine StimulationTechnique for Gas Production from Natural Gas Hydrates. J Pet Technol 39 (11): 1379-1388. SPE-13596-PA. http://dx.doi.org/10.2118/13596-PA.
Kamath, V.A., Mutalik, P.N., Sira, J.H., and Patil, S.L. 1991. ExperimentalStudy of Brine Injection Depressurization of Gas Hydrates Dissociation of GasHydrates. SPE Form Eval 6 (4): 477-484. SPE-19810-PA. http://dx.doi.org/10.2118/19810-PA.
Lee, J. 2010. Experimental Study on the Dissociation Behavior andProductivity of Gas Hydrate by Brine Injection Scheme in Porous Rock. EnergyFuels 24 (1): 456-463. http://dx.doi.org/10.1021/ef900791r.
Li, X.-S., Wan, L.-H., Li, G., Li, Q.-P., Chen, Z.-Y., and Yan, K.-F. 2008.Experimental Investigation into the Production Behavior of Methane Hydrate inPorous Sediment with Hot Brine Stimulation. Ind. Eng. Chem. Res. 47 (23): 9696-9702. http://dx.doi.org/10.1021/ie8009582.
Moridis, G.J. and Reagan, M.T. 2007. Gas Production From Class 2 HydrateAccumulations in the Permafrost. Paper SPE 110858 presented at the SPE AnnualTechnical Conference and Exhibition, Anaheim, California, USA, 11-14 November.http://dx.doi.org/10.2118/110858-MS.
Moridis, G.J., Reagan, M.T., Kim, S.-J., Seol, Y., and Zhang, K. 2007.Evaluation of the Gas Production Potential of Oceanic Hydrate Deposits in theUlleung Basin of the Korean East Sea. Paper SPE 110859 presented at the SPEAsia Pacific Oil & Gas Conference and Exhibition, Jakarta, 30 October-1November. http://dx.doi.org/10.2118/110859-MS.
Sakamoto, Y., Komai, T., Kawamura, T., Minagawa, H., Tenma, N., and Yamaguchi, T. 2007. Laboratory-scale Experiment of Methane Hydrate Dissociationby Hot-water Injection and Numerical Analysis for Permeability Estimation inReservoir: Part 1—Numerical Study for Estimation of Permeability in MethaneHydrate Reservoir. Int. J. Offshore Polar Eng. 17 (1):47-56.
Sloan Jr., E.D. and Koh, C.A. 2008. Clathrate Hydrates of NaturalGases, third edition, Vol. 119. Boca Raton, Florida: Chemical Industries,CRC Press.
Tang, L.G., Xiao, R., Huang, C., Feng, Z.P., and Fan, S.S. 2005.Experimental Investigation of Production Behavior of Gas Hydrate under ThermalStimulation in Unconsolidated Sediment. Energy Fuels 19(6): 2402-2407. http://dx.doi.org/10.1021/ef050223g.