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dc.contributor.author Kurihara, Masanori
dc.contributor.author Funatsu, Kunihiro
dc.contributor.author Ouchi, Hisanao
dc.contributor.author Masuda, Yoshihiro
dc.contributor.author Yasuda, Masato
dc.contributor.author Yamamoto, Koji
dc.contributor.author Numasawa, Masaaki
dc.contributor.author Fujii, Tetsuya
dc.contributor.author Narita, Hideo
dc.contributor.author Dallimore, Scott R.
dc.contributor.author Wright, J. Frederick
dc.date.accessioned 2008-09-17T23:34:58Z
dc.date.available 2008-09-17T23:34:58Z
dc.date.issued 2008-07
dc.identifier.citation Kurihara, Masanori; Funatsu, Kunihiro; Ouchi, Hisanao; Masuda, Yoshihiro; Yasuda, Masato; Yamamoto, Koji; Numasawa, Masaaki; Fujii, Tetsuya; Narita, Hideo; Dallimore, Scott R.; Wright, J. Frederick. 2008. ANALYSIS OF THE JOGMEC/NRCAN/AURORA MALLIK GAS HYDRATE PRODUCTION TEST THROUGH NUMERICAL SIMULATION. Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008. en
dc.identifier.uri http://hdl.handle.net/2429/2234
dc.description.abstract A gas hydrate production test using the depressurization method was conducted in early April 2007 as part of the JOGMEC/NRCan/Aurora Mallik production research program. The results of the production test were analyzed using a numerical simulator (MH21-HYDRES) coded especially for gas hydrate reservoirs. This paper evaluates the test results based on analyses of production test data, numerical modeling and a series of history matching simulations. Methane gas and water was produced from a 12 m perforation interval within one of the major methane hydrate (MH) reservoirs at the Mallik MH field, by reducing the bottomhole pressure down to about 7 MPa. The measured gas production rate was far higher than that expected for a comparatively small pressure drawdown. However, irregular (on-off) pumping operations, probably related to excessive sand production, resulted in unstable fluid flow within the wellbore, which made the analysis of test performance extremely complicated. A numerical reservoir model was constructed as a series of grid blocks, including those mimicking the wellbore, to enable rigorous simulation of fluid flow patterns in the vicinity of the wellbore. The model was then tuned through history matching, not by simply adjusting reservoir parameters, but by introducing the concept that sand production might have dramatically increased the near-wellbore permeability. The good agreement between observed and simulated performances suggests the mechanism of MH dissociation/production during the test. The history matched reservoir model was employed to predict the second-year production test performance, in order to examine the gas production potential of the Mallik MH reservoir, and to provide insight into future exploration and development planning for MH reservoirs. en
dc.format.extent 1192865 bytes
dc.format.mimetype application/pdf
dc.language.iso eng en
dc.relation.ispartof 6th International Conference on Gas Hydrates en
dc.subject production test en
dc.subject numerical simulation en
dc.subject history matching en
dc.subject sand production en
dc.subject depressurization en
dc.subject ICGH 2008 en
dc.subject International Conference on Gas Hydrates 2008 en
dc.type Text en
dc.type.text Conference Paper en
dc.description.affiliation Other en
dc.description.reviewstatus Unreviewed en
dc.rights.copyright Dallimore, Scott R. en

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