gas hydrate - CCOP

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Figure 9. The Advanced Light Source at LBNL, and use of the Beamline 8.3.2 to derive by means of x-ray microtomography relative permeability and capillary pressure relationships of hydrate-bearing media based on pore structure data. SUMMARY We discuss the range of activities at Lawrence Berkeley National Laboratory in support of gas production from natural hydrates. Numerical simulation of depressurization-induced gas production indicates that Class 1 and 2 hydrate deposits hold significant promise as potential energy sources because they can yield large gas volumes at high rates using conventional production technology. In Class 3 deposits, neither pure depressurization (when S H is sufficiently low to permit significant flow) nor thermal stimulation (when S H >70%, thus severely reducing permeability) results in commercially viable gas production. Class 4 deposits are not promising production targets. We developed a laboratory program (closely coordinated with the simulation studies) to obtain parameters and relationships describing the thermal, thermodynamic, hydraulic and kinetic properties of hydrate-bearing media that are important in predicting gas production. An important feature of the laboratory studies is the use of x-ray CT scanning and microtomography to describe the strong spatial and temporal heterogeneity of hydrates in porous media. Finally, we discuss briefly the LBNL studies in support of field tests of gas production from hydrates. ACKNOWLEDGMENT This work was supported by the Assistant Secretary for Fossil Energy, Office of Natural Gas and Petroleum Technology, through the National Energy Technology Laboratory, under the U.S. Department of Energy, Contract No. DE-AC03-76SF00098. The authors are indebted to John Apps and Dan Hawkes for their thorough review and their insightful comments. 62 New Energy Resources in the CCOP Region - Gas Hydrates and Coalbed Methane
REFERENCES Sloan, E.D., 1998, Clathrate Hydrates of Natural Gases, Marcel Dekker, Inc., New York, NY. Gupta, A., T. Kneafsey, G.J. Moridis, Y. Seol, M.B. Kowalsky, and E.D. Jr. Sloan, 2006 Methane hydrate thermal conductivity in a large heterogeneous porous sample, J. Phys. Chem. B, 10.1021/jp0619639 (LBNL-59088). Kneafsey, T., L. Tomutsa, G.J. Moridis, Y. Seol, B. Freifeld, C.E. Taylor and A. Gupta, Methane hydrate formation and dissociation in a core-scale partially saturated sand sample, In Press, J. Petr. Sci. Eng., (LBNL-59087, 2005). Moridis, G.J. and T.S. Collett, 2003, Strategies for gas production from hydrate accumulations under various geologic conditions, LBNL-52568, Lawrence Berkeley National Laboratory, Berkeley, CA. Moridis, G.J., T.S. Collett, S.R. Dallimore, T. Satoh, S. Hancock and B. Weatherhill, 2004, Numerical studies of gas production scenarios from several CH 4 -hydrate accumulations at the Mallik site, Mackenzie Delta, Canada”, J. Petr. Sci. Eng., Vol. 43, 219-238. Moridis, G.J., M.B. Kowalsky and K. Pruess, 2005a, TOUGH-Fx/HYDRATE v1.0 User’s Manual: A code for the simulation of system behavior in hydrate-bearing geologic media, LBNL-58950, Lawrence Berkeley National Laboratory, Berkeley, CA (2005). Moridis, G.J., M.B. Kowalsky and K. Pruess, 2005b, Depressurization-induced gas production from Class 1 hydrate deposits, SPE 97266, 2005 SPE Annual Technical Conference and Exhibition, Dallas, Texas, U.S.A., 9–12 October 2005. Moridis, G.J., Y. Seol and T. Kneafsey, 2005c, Studies of reaction kinetics of methane hydrate dissociation in porous media, Paper 1004, Proc. 5 th International Conf. on Gas Hydr., 21- 30 (LBNL-57298). Moridis, G.J., T.S. Collett, S.R. Dallimore, T. Inoue and T. Mroz, 2005d, Analysis and interpretation of the thermal test of gas hydrate dissociation in the JAPEX/JNOC/GSC Mallik 5L-38 gas hydrate production research well, Geological Survey of Canada, Bulletin 585, S.R. Dallimore and T. Collett, Eds., (LBNL-57296). Moridis, G.J. and M. Kowalsky, 2006, Gas production from unconfined Class 2 hydrate accumulations in the oceanic subsurface, Chapter 7, in Economic Geology of Natural Gas Hydrates, M. Max, A.H. Johnson, W.P. Dillon and T. Collett, Eds., Kluwer Academic/Plenum Publishers, 249-266 (LBNL-57299). Moridis, G.J. and E.D. Sloan, 2006, Gas production potential of disperse low-saturation hydrate accumulations in oceanic sediments, LBNL-52568, Lawrence Berkeley National Laboratory, Berkeley, CA. New Energy Resources in the CCOP Region - Gas Hydrates and Coalbed Methane 63
Page 2 and 3:
Coordinating Committee for Geoscien
Page 4 and 5:
Thematic Session on New Energy Reso
Page 6 and 7:
CONTENTS Page OPENING REMARKS……
Page 8 and 9:
OPENING REMARKS by Chen Shik Pei Di
Page 10 and 11:
WELCOME ADDRESS by Tai-Sup Lee Pres
Page 12 and 13: WELCOME ADDRESS by Keun-Pil Park Di
Page 14 and 15: CONGRATULATORY ADDRESS by David Pri
Page 16 and 17: PART I GAS HYDRATE: EXPLORATION, RE
Page 18 and 19: Partial differential equations for
Page 20 and 21: RESULTS AND DISCUSSION In the follo
Page 22 and 23: REFERENCES Berner R. A. (1980) Earl
Page 24 and 25: features of the seabed than those o
Page 26 and 27: secure the stability of the solutio
Page 28 and 29: trends depending on the following f
Page 30 and 31: Organic carbon in sediments is of i
Page 32 and 33: Sedimentological and Geochemical As
Page 34 and 35: Figure 3. Sedimentation rate of the
Page 36 and 37: Marine Gas Hydrate off W. Canada an
Page 38 and 39: Several methods for computing the Q
Page 40 and 41: 0.035 0.03 Amplitude 0.025 0.02 0.0
Page 42 and 43: 60 50 Amplitude 40 30 20 10 0 0 50
Page 44 and 45: REFERENCES Dallimore, S.R. and T.S.
Page 46 and 47: Frequency % 20 16 12 8 HAMA #5, MV=
Page 48 and 49: Figure 3. Experimental procedures f
Page 50 and 51: Figure 7 shows two cases of the com
Page 52 and 53: Seismic Characteristics of Gas Hydr
Page 54 and 55: Purpose The purpose of this paper i
Page 56 and 57: The dissociation zone created by th
Page 58 and 59: hydrate that forms near the wellbor
Page 60 and 61: dissociation, composite thermal con
Page 64 and 65: Experimental Studies and Developmen
Page 66 and 67: Natural gas hydrate exploitation an
Page 68 and 69: Natural gas Free gas layer Figure 5
Page 70 and 71: Figure 7. One-dimensional developme
Page 72 and 73: Temper at ur e 2 1 0 -1 -2 -3 -4
Page 74 and 75: From the above discussion, the heat
Page 76 and 77: INTRODUCTION Clathrate hydrates are
Page 78 and 79: MATHEMATICAL MODEL The mathematical
Page 80 and 81: Where the hydrate-aqueous radius of
Page 82 and 83: REFERENCES Brooks, R.H., and A.T. C
Page 84 and 85: 86 New Energy Resources in the CCOP
Page 86 and 87: In this paper, an overview of the M
Page 88 and 89: The brief tasks in the Phase I are:
Page 90 and 91: In "Development of the dissociation
Page 92 and 93: Figure 5. Preparation equipment. AN
Page 94 and 95: Other recent research subjects in t
Page 96 and 97: same crystalline structure directly
Page 98 and 99: Another important aspect of the pre
Page 100 and 101: a + CO 2 CH 4 C 2 H 6 b CH 4 in sII
Page 102 and 103: REFERENCES Collett, T.S. and Kuuskr
Page 104 and 105: Figure 1. Physiographic and crust m
Page 106 and 107: Figure 3. Seismic profile showing s
Page 108 and 109: Figure 7. Distribution of echo char
Page 110 and 111: Figure 10. Seismic profile and its
Page 112 and 113:
In the early stage of back-arc open
Page 114 and 115:
PART II COALBED METHANE (CBM)
Page 116 and 117:
Supply and demand infrastructure of
Page 118 and 119:
Amisan, Jogyeri, Baegunsa, and Seon
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PROPERTIES OF ANTHRACITE The coals
Page 122 and 123:
Table 4. Average chemical compositi
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CONCLUSIONS 1. Most of the coals em
Page 126 and 127:
INTRODUCTION Coal (total reserves 2
Page 128 and 129:
ีีีีีีีีี ั ิ
Page 130 and 131:
RESULTS By Government: The outcomes
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The gas composition (12 samples ana
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Table 4. Coal Depth Interval Hole N
Page 136 and 137:
The results of studies made on 11 c
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CONCLUSION CBM is still hoped to be
Page 140 and 141:
The Government of Indonesia through
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The Berau basin is a major coal pro
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PP: CBM - 1 Rambutan (GOI Sponsor)
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Overview of Project for CO 2 Seques
Page 148 and 149:
The organic geochemistry research g
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3.5 25 3.0 20 Ar(%) C O 2(%) 2.5 2
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20 8 10 0 6 δ13C of CO2(‰) -10 -
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Figure 1. Index map of Akabira Coal
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ORIGIN OF AKABIRA CBM In Akabira mi
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