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TitleAnalysis of 2007 and 2008 gas hydrate production tests on the Aurora/JOGMEC/NRCan Mallik 2L-38 well through numerical simulation
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKurihara, M; Sato, A; Funatsu, K; Ouchi, H; Yamamoto, K; Fujii, T; Numasawa, M; Masuda, Y; Narita, H; Dallimore, S RORCID logo; Wright, J F; Ashford, D I
SourceScientific results from the JOGMEC/NRCan/Aurora Mallik 2007-2008 gas hydrate production research well program, Mackenzie Delta, Northwest Territories, Canada; by Dallimore, S RORCID logo (ed.); Yamamoto, K (ed.); Wright, J F (ed.); Bellefleur, GORCID logo (ed.); Geological Survey of Canada, Bulletin 601, 2012 p. 217-259, Open Access logo Open Access
PublisherNatural Resources Canada
Mediapaper; on-line; digital
RelatedThis publication is contained in Scientific results from the JOGMEC/NRCan/Aurora Mallik 2007-2008 gas hydrate production research well program, Mackenzie Delta, Northwest Territories, Canada
File formatpdf
ProvinceNorthwest Territories
AreaMackenzie Delta
Lat/Long WENS-134.5000 -134.0000 69.5000 69.2500
Subjectsfossil fuels; engineering geology; geophysics; hydrocarbons; gas; hydrocarbon gases; hydrate; methane; methane hydrate; petroleum resources; geophysical surveys; gamma ray logging; gamma-ray surveys; seismic surveys; porosity; permeability; geothermics; modelling; production tests; drilling techniques; pressure-temperature conditions; logging techniques; Tertiary; Cenozoic
Illustrationstables; plots; profiles; schematic diagrams
ProgramGas Hydrates
Released2012 12 14 (13:00)
AbstractThe JOGMEC/NRCan/Aurora Mallik gas hydrate production tests were conducted using the depressurization method in April of 2007 and March of 2008. These tests represent the first and so far only successful sustained production in the world of methane gas to surface from a gas hydrate reservoir by depressurization. A variety of data, such as wellhead/bottom-hole pressure and temperature, gas/water flow rates, and temperature along the casing measured by distributed temperature sensing, were acquired during the tests. The flow rates of gas and water from the reservoir sand face during the tests were estimated by comprehensive analysis of these data. Diverse history-matching simulation was then conducted to reproduce these estimated flow rates, using the numerical simulator MH21-HYDRES coded especially for gas hydrate reservoirs. This series of history-matching simulation studies quantitatively clarified the mechanisms of methane hydrate dissociation and production, as well as what had happened in the reservoir during the production tests. This paper describes the procedures and results of a series of these studies, including the analyses of production-test data, numerical modelling and history-matching simulation, which will provide beneficial insights into the mechanisms of methane hydrate dissociation and production for future exploration and development planning for gas hydrate resources.

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