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TitleValidation de principe liée à la production d'hydrates de gaz au moyen de la technique de dépressurisation, telle que démontrée dans le cadre du Programme de puits de recherche sur la production d'hydrates de gaz JOGMEC/NRCan/Aurora Mallik 2007-2008
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LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorDallimore, S RORCID logo; Wright, J F; Yamamoto, K; Bellefleur, GORCID logo
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. 17-33, 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; biogenic gas; geophysical surveys; gamma ray logging; gamma-ray surveys; seismic surveys; porosity; permeability; geothermics; modelling; production tests; drilling techniques; logging techniques; pressure-temperature conditions; Tertiary; Cenozoic
Illustrationslocation maps; fence diagrams; graphs; plots; tables
ProgramGas Hydrates
Released2012 12 14 (13:00)
Scientific and technical studies conducted under the 2007-2008 JOGMEC/NRCan/Aurora Mallik Gas Hydrate Production Research Well Program have successfully demonstrated proof-of-principle that sustained gas production is achievable by simply depressurizing a gas hydrate reservoir using the same drilling, completion and production methods used for conventional oil and gas resources. This paper reviews the results that prove the validity of this claim. The results in question consist of 1) the establishment of a petroleum system model representing the development of a gas hydrate field through the migration of thermogenic methane from deeper sedimentary strata along vertical faults and the subsequent trapping of gas hydrates within a large regional anticlinal structure; 2) determining the significance of the specific physical properties (geological, geophysical and geomechanical) of the sands and sediments surrounding the gas hydrate reservoir; 3) the construction and safe operation of a producing well using drilling and completion technologies used in conventional oil fields; and 4) the use of reservoir depressurization to produce gas continuously for six days, with average gas and water flow rates of approximately 2000 and 10 m3/d, respectively, and peak flows of up to 3500-4000 m3/d. Modest upward trends in gas flow were observed during the Stage 2 and Stage 3 production periods.
Numerical reservoir simulations of the short-term gas and water production rates achieved at the Mallik site were modestly successful. In conclusion, it appears that prior to commencing full-scale operations, there is a need to improve the state of knowledge regarding the impact of long-term production on the Mallik reservoir, which could be achieved through a 6 to 12 month production trial. (Translation preformed by artificial intelligence.)

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