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Oceanic Gas Hydrate Research and Activities Review Dr. Mary C. Boatman Presented By
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Gas Hydrates: Short term Long term What are they? Why are they important? What matters to MMS?
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Gas Hydrate: Ice-like structure that traps gases Source: U.S. Geological Survey Methane, Carbon Dioxide, Ethane, Butane, Propane, Hydrogen Sulfide
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Hydrate Structures Sources: U.S. Geological Survey and Texas A&M University Concentrates gas with a ratio of ~ 1:160 One cubic foot of gas hydrate contains 160 cubic feet of gas at standard temperature and pressure Type IType IIType H
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Hydrate Formation Requires Five Ingredients: Water Pressure Temperature Nucleation Site Gas - CH 4, CO 2, C 2 H 6, H 2 S, etc.
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Why the interest in Gas Hydrates? Safety: Hydrates plug flowlines Hydrates can be geohazards Resource: Methane Hydrates are a source of natural gas Environmental: Sensitive Communities use hydrates as food Methane Hydrates can contribute to global warming
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Safety Hydrates can form in flowlines and on equipment Hydrates occur naturally in the sediment
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Gulf of Mexico
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Seafloor gas hydrates exist near upward migration paths
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Resource
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USGS Estimates of the United States In-Place Gas Resources Within Gas Hydrates
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Methods of Extraction Heat Inject CO 2 to Displace Methane Inject Inhibitors Direct Removal Depressurization
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Environmental Chemosynthetic Communities: Sensitive Biological Communities Associated with Methane Hydrates Found in Deepwater throughout Gulf of Mexico Global Warming
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Environmental Chemosynthetic Communities: Sensitive Biological Communities Associated with Methane Hydrates Found in Deepwater throughout Gulf of Mexico Global Warming
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S. 330 and H.R. 1753 Methane Hydrate Research and Development Act of 1999 To promote the research, identification, assessment, exploration, and development of methane hydrate resources, and for other purposes. Funding: $42.5 million over 5 years Lead Agency: Department of Energy Consultation:Department of the Interior Department of Defense
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International Interest in Methane Hydrate Recovery India: $56 million program Japan: $50 million program Canada: MacKenzie Delta Permafrost with Japan United Kingdom, Brazil, and Norway Russia: Messoyakha gas field - 1970
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Hydrate Research at other Agencies: Department of Energy: Methane Hydrates as a Resource Naval Research Laboratory: Acoustic Properties of Sediments National Science Foundation: Basic Research into Hydrate Properties United States Geological Survey: Gas Hydrates as a Geohazard Methane Hydrates as a Resource
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MMS Involvement in Hydrate Research Technology Assessment & Research Program Chemosynthetic Communities Resource Evaluation - mapping of surface anomalies Participation on Committees and in Consortiums Center for Marine Resources and Environmental Technology (CMRET)
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3-D Seismic view of Gulf of Mexico Sea Floor
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3-D Seismic Surface Anomaly Map of Cooper Field
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Close-up view of Surface Anomaly with Hydrate
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Vertical view of one of the seismic lines
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Whats important to MMS? Short Term: Safety: Technology and Geohazards Environmental: Protecting Sensitive Biological Communities Long Term: Methane Hydrate Extraction New Technology Identification and Valuation of Resource Environmental Impacts
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