Use of formation pressure test results over a hydrate interval for long-term production forecasting at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Implications of uncertainties

Pooladi‐Darvish, Mehran; Hong, Huifang

doi:10.1016/j.marpetgeo.2010.01.006

Cited by 12 publications

(3 citation statements)

References 16 publications

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“…In comparison to the Mallik 2002 MDT tests, the individual Mount Elbert tests were of longer duration, with the tests ranging from 6 to nearly 13 h to further enhance data interpretability. Acquisition of this open-hole, dual-packer MDT data confirm earlier results obtained at Mallik (Dallimore and Collett, 2005;Hancock et al, 2004) and indicate ability to technically recover gas from gas hydrates through depressurization (Pooladi- Darvish and Hong, 2011;Anderson et al, 2011a;Kurihara et al, 2011). As shown in Fig.…”

Section: Formation Pressure Testing Program Resultssupporting

confidence: 86%

“…These results conform well to the pre-drill prediction . The MDT results significantly improved understanding of the in-situ petrophysics of the reservoir and provided insight into reservoir response to local depressurization through free water withdrawal and associated gas production from hydrate dissociation (Anderson et al, 2011a;Pooladi-Darvish and Hong, 2011;Kurihara et al, 2011). Reservoir modeling indicates that the ability of the gas hydrate-bearing porous media to transmit a pressure front could be a key parameter to enable pressure-depletion drive during production testing (Wilson et al, 2011), provided temperatures do not fall below freezing, which would effectively transform the small remaining mobile fluid phase into an immobile ice phase.…”

Section: Tablementioning

confidence: 99%

See 1 more Smart Citation

Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Overview of scientific and technical program

Hunter

Collett

Boswell

et al. 2011

Marine and Petroleum Geology

188

104

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Section: Formation Pressure Testing Program Resultssupporting

confidence: 86%

Section: Tablementioning

confidence: 99%

Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Overview of scientific and technical program

Hunter

Collett

Boswell

et al. 2011

Marine and Petroleum Geology

188

104

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“…The fluid flow potential was measured in four open interval flow tests that ranged from 6 to 12 hours each. These datasets were evaluated through history matching by several numerical models (Anderson et al, 2011a, Kurihara et al, 2011, Pooladi-Darvish and Hong, 2011 1.3 Gas hydrates in nature and provided data for evaluation of potential long-term production (Anderson et al, 2011b, Collett et al, 2012a, Wilson et al, 2011. The stratigraphic well confirmed intervals with 60-75% S h within reservoir quality sand.…”

Section: Mount Elbertmentioning

confidence: 99%

Numerical Predictions of Experimentally Observed Methane Hydrate Dissociation and Reformation in Sandstone

Birkedal

Freeman²,

Moridis

et al. 2014

Energy Fuels

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Focus is shifted towards renewable energy and sources of natural gas as the demand for cleaner energy continues to increase with global awareness on anthropogenic climate change. Methane (CH 4) provides advantages such as high enthalpy upon combustion and low carbon imprint compared to other fossil fuels. Natural gas is therefore predicted to play an important role as the world moves from coal dependency towards a cleaner and more sustainable energy future. Natural gas hydrate is a solid state of gas and water, where water molecules interconnect through hydrogen bonding to form a cavity which is stabilized by a gas molecule through van der Waals interaction forces. This reaction occurs where water and CH 4 coexist at low temperature and high pressure. In nature, such conditions are typically found in permafrost and submarine environments. Vast energy resources are associated with gas hydrates, where different models suggest that hydrates contain 10 15 to 10 17 m 3 CH 4 at standard temperature and pressure (STP). In comparison, the annual gas consumption in the US is about 7•10 11 m 3. Gas hydrates may therefore become a significant contributor in the future energy mix. Current technological challenges are related to in situ characterization for accurate saturation estimates, further advances in production technologies and continuous improvements of available numerical models through comparison with actual fieldand core-scale data. A synergy between gas production and safe CO 2 storage is achieved through CO 2 sequestration in hydrate bearing sediments, where CO 2 replaces the existing CH 4 molecule within the hydrate crystal. The process occurs because CO 2 offers favorable thermodynamic conditions. Salt was observed to impact the hydrate formation rate and the amount of excess water in Paper 1. Depressurization and diffusion-driven CO 2 exchange were compared, where Magnetic Resonance Imaging (MRI) was used to monitor production in situ. CO 2-CH 4 exchange was more abundant for high residual brine, and therefore sensitive to initial salt concentration. Depressurization was assumed to be limited by permeability and heat transfer. Current opinion on geomechanical issues related to hydrate bearing sediments was addressed in Paper 2. Hydrate decomposition through depressurization resulted in production of associated water with potential loss of structural integrity, as gas

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Improving gas production of hydrate deposits by increasing reservoir permeability nearby production well in the South China Sea

et al. 2022

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Use of formation pressure test results over a hydrate interval for long-term production forecasting at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Implications of uncertainties

Cited by 12 publications

References 16 publications

Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Overview of scientific and technical program

Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Overview of scientific and technical program

Numerical Predictions of Experimentally Observed Methane Hydrate Dissociation and Reformation in Sandstone

Improving gas production of hydrate deposits by increasing reservoir permeability nearby production well in the South China Sea

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