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Hydrates-Final Presentation

Hydrates-Final Presentation - Unconventional Gas Production...

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Unconventional Gas Production Commercialization of Hydrated Gas James Mansingh Jeffrey Melland
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Objective Statement box3 Methane hydrates hold a massive potential for production of natural gas, so we set out to find an economical way to produce hydrated gas and deliver it to market
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Intro to Hydrates box3 Methane & water have the ability to form hydrates. Methane Water Hydrate
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Clathrates box3 Methane trapped in a cubic water crystals box3 Unstable at standard temperature and pressure box3 Estimated to produce 150 units of gas
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Overview box3 Operations square6 Locating square6 Drilling square6 Production square6 Piping square6 Liquefaction square6 Shipping square6 Regasification square6 Sales
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Value Chain Piping Market $/MMBtu $/MMBtu $/MMBtu $ /MMBtu $/MMBtu ($ /MMBtu)
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Locating
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box3 Seismic Surveying square6 Acoustic box3 Seismic Analysis square6 2 month project, 3 man team square6 Block = 3 square miles square6 Usually shoot 30-60 blocks at a time square6 Project a 2000 square km area with a depth of 1200ft to 3300ft Locating
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Locating cont’ box3 Seismic Survey Costs square6 $30,000 for shooting a block square6 $12,000,000 for the 2000 km 2 area with a depth of 400m-1000m square6 $3,000,000 for reprocessing cost and time for the seismic survey square6 Total Cost = $15,000,000
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Drilling
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Drilling box3 Drilling and Measurements square6 Directional drilling and basic logs to locate promising zones
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Drilling box3 Reservoir Evaluation square6 In depth logs of promising areas square6 Perforations into methane hydrated areas
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Drilling box3 Well Stimulation square6 Pressurized solution addition into the formation to stimulate backflow of desired product
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box3 Drilling and Measurements square6 17 day projects square6 90fph thru basic formation square6 10fph thru hydrate formation box3 Reservoir Evaluation square6 2 separate day projects square6 Log 1200ft to 3300ft square6 HILT with FMI and Sonic square6 Two 3ft perforations at 2100ft & 2200ft box3 Well Stimulation square6 3 separate fracturing day projects, 1 casing job, 1 cementing job square6 70 miles each way to get to location Drilling cont’ Day 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Drilling Timeline Drill to 2000’ Log to 2000’ Drill to 2600’ Drill to 3300’ Log to 3300’ Stimulate at 3300’
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Drilling Cont’ box3 Drilling and Measurements square6 $895,500 box3 Reservoir Evaluation square6 $14,700 box3 Well Stimulation square6 $5,840,000 box3 Well Completions square6 $68,300 box3 Basis for a well square6 25 day project box3 Initial investment square6 $20.5 million box3 Yearly operating cost square6 $8.2 million
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Production box3 Assumptions square6 165 scm gas per cubic meter of hydrate square6 Formation behaves as a tank square6 Formation is homogenous and isotropic square6 No intermediate phases square6 Isothermal process square6 Rock expansion is negligible square6 300 m vertical fractures in 2 directions, 180° separation square6 Negligible pressure gradient along fractures square6 Hydrate formation is on average 70 m deep
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