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 b 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 b Methane Water Hydrate
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Clathrates b Methane trapped in a cubic water crystals b Unstable at standard temperature and pressure b Estimated to produce 150 units of gas
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Overview b Operations s Locating s Drilling s Production s Piping s Liquefaction s Shipping s Regasification s Sales
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Value Chain Piping Market $/MMBtu $/MMBtu $/MMBtu $ /MMBtu $/MMBtu ($ /MMBtu)
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Locating
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b Seismic Surveying s Acoustic b Seismic Analysis s 2 month project, 3 man team s Block = 3 square miles s Usually shoot 30-60 blocks at a time s Project a 2000 square km area with a depth of 1200ft to 3300ft Locating
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Locating cont’ b Seismic Survey Costs s $30,000 for shooting a block s $12,000,000 for the 2000 km 2 area with a depth of 400m-1000m s $3,000,000 for reprocessing cost and time for the seismic survey s Total Cost = $15,000,000
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Drilling
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Drilling b Drilling and Measurements s Directional drilling and basic logs to locate promising zones
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Drilling b Reservoir Evaluation s In depth logs of promising areas s Perforations into methane hydrated areas
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Drilling b Well Stimulation s Pressurized solution addition into the formation to stimulate backflow of desired product
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b Drilling and Measurements s 17 day projects s 90fph thru basic formation s 10fph thru hydrate formation b Reservoir Evaluation s 2 separate day projects s Log 1200ft to 3300ft s HILT with FMI and Sonic s b Well Stimulation s 3 separate fracturing day projects, 1 casing job, 1 cementing job s 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’ b Drilling and Measurements s $895,500 b Reservoir Evaluation s $14,700 b Well Stimulation s $5,840,000 b Well Completions s $68,300 b Basis for a well s 25 day project b Initial investment s $20.5 million b Yearly operating cost s $8.2 million
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Production b Assumptions s 165 scm gas per cubic meter of hydrate s Formation behaves as a tank s Formation is homogenous and isotropic s No intermediate phases s Isothermal process s Rock expansion is negligible s 300 m vertical fractures in 2 directions, 180° separation s Negligible pressure gradient along fractures s Hydrate formation is on average 70 m deep
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0.00 1000.00 2000.00 3000.00 4000.00 5000.00 6000.00 7000.00 8000.00 9000.00 10000.00 260 265
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Hydrates-Final Presentation - Unconventional Gas Production...

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