gas hydrate - CCOP

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Sedimentological and Geochemical Assessment of Gas Hydrate Potential in the East Sea, Korea: A Summary of Preliminary Results of a 2006 Cruise Y.I. Kwon, B.J. Ryu, B.K. Son, C.W. Jun, D. Sunwoo, H.J. Kim, H.Y. Lee, I.G. Hwang, J.H. Chun, J.H. Kim, J.H. Ko, J.H. Lee, J.H. Oh, K.O. Ahn, T.J. Jung, Y.J. Lee, and Y.J. Shin Korea Institute of Geoscience and Mineral Resources, 30, Gajeong-dong, Yusung-ku, Daejon 305-350, Korea ABSTRACT: During 2006, a gas hydrate research cruise was conducted in the East Sea (Sea of Japan). The main purpose of this cruise was to examine the geological and geochemical characteristics of gas hydrate related sediment and water samples in the Ulleung Basin. These studies resulted some of the most objectoriented data ever collected concerning f seabed evidence of gas hydrate in the Ulleung Basin. Sediment and water samples, with sensing data from a 3-D seismic survey area, were examined using multivariate techniques to analyze for the gas hydrate criteria of geochemical anomaly, seabed image, sedimentary structure, paleontologic environment and mineralogic characteristics in the prospective zone of the study area. Seafloor photo data, acoustic data, water samples, and sediment samples were acquired and analyzed for isotopes, organic compounds, TOC, and elements from both the water and sediment samples. Using the seafloor photographic images and acoustic data, the shallow seabed characteristics were interpreted. These results can be used as a tool to evaluate the gas hydrate from the gas seepage area of the south-eastern part of the East Sea. CRUISE DESIGN AND ACTIVITIES Gas hydrate samples have been recovered from the surface of the sea-floor of back-arc basins (Kvenvolden, K.A. and Lorenson, T.D, 2001) distributed, however, only in a small area. Therefore in this investigation a new strategy was adopted to find gas hydrate samples on the sea floor of one such basin (Figure 1). This strategy applied some new equipment for objectoriented research. Methane data in sea water were collected with the METS methane sensor. The methane sensor operates from 0 m to 2,000 m water depths with a sensitivity of 50 nano mol/liter - 10 micro mol/liter. Sea floor images were captured by Ocean Imaging Systems, with 6,000 m depth rating. The SBE 19 plus SEACAT Profiler conductivity, temperature, and pressure recorder was used for measuring sea water characteristics. The first cruise of the year 2006 project was conducted during 3 days from 12 th to 16 th July for testing the new equipment. Ten scientists participated. New Energy Resources in the CCOP Region - Gas Hydrates and Coalbed Methane 27
Figure 1. Flow-chart showing the object-oriented plan to find gas hydrate using various equipment, focusing on the surface of the sea floor proxies. Figure 2. Geochemical log of the sediments, GH06-02B. RESULTS AND DISCUSSION To distinguish the sedimentological and geochemical indicators for the presence of gas hydrate, methane and oxygen sensing data, push cores, deep seafloor images and water samples were taken from 3 sites in the SW Ulleung Basin. The sediments, pore waters, seafloor waters, and sensing data were analyzed and interpreted. Rock-Eval pyrolysis showed that the contents of TOC and T max in the core sediments are mostly higher than 1.6% and lower than 409 (Figure 2), respectively, which indicates sufficient TOC for gas hydrate formation and thermal immature stage for the organic matter. 28 New Energy Resources in the CCOP Region - Gas Hydrates and Coalbed Methane
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 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 62 and 63: Figure 9. The Advanced Light Source
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
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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
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Figure 5. Preparation equipment. AN
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Other recent research subjects in t
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same crystalline structure directly
Page 98 and 99:
Another important aspect of the pre
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a + CO 2 CH 4 C 2 H 6 b CH 4 in sII
Page 102 and 103:
REFERENCES Collett, T.S. and Kuuskr
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Figure 1. Physiographic and crust m
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Figure 3. Seismic profile showing s
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Figure 7. Distribution of echo char
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Figure 10. Seismic profile and its
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In the early stage of back-arc open
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PART II COALBED METHANE (CBM)
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Supply and demand infrastructure of
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Amisan, Jogyeri, Baegunsa, and Seon
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PROPERTIES OF ANTHRACITE The coals
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Table 4. Average chemical compositi
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CONCLUSIONS 1. Most of the coals em
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INTRODUCTION Coal (total reserves 2
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ีีีีีีีีี ั ิ
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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
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The results of studies made on 11 c
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CONCLUSION CBM is still hoped to be
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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)
Page 146 and 147:
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 -
Page 154 and 155:
Figure 1. Index map of Akabira Coal
Page 156:
ORIGIN OF AKABIRA CBM In Akabira mi
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