Underground storage of carbon dioxide in depleted natural gas reservoirs and in useless aquifers

Koide, Hitoshi; Tazaki, Yoshiyuki; Noguchi, Yasuhisa; Iijima, Masaki; Ito, Kazuitsu; Shindo, Yuji

doi:10.1016/0013-7952(93)90086-r

Cited by 45 publications

(16 citation statements)

References 2 publications

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“…The benefits of injecting CO 2 into depleted natural gas reservoirs include, among others, the potential for enhanced natural gas (CH 4 ) recovery, the sale of which can be used to subsidize the cost of CO 2 injection (van der Burgt et al, 1992;Koide et al, 1993;Blok et al, 1997, Oldenburg et al, 2001. This process is known as Carbon Sequestration with Enhanced Gas Recovery (CSEGR).…”

Section: Introductionmentioning

confidence: 99%

Joule-Thomson cooling due to CO2 injection into natural gas reservoirs

Oldenburg

2007

Energy Conversion and Management

196

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Depleted natural gas reservoirs are a promising target for Carbon Sequestration with Enhanced Gas Recovery (CSEGR). The focus of this study is on evaluating the importance of Joule-Thomson cooling during CO 2 injection into depleted natural gas reservoirs. Joule-Thomson cooling is the adiabatic cooling that accompanies the expansion of a real gas. If Joule-Thomson cooling were extreme, injectivity and formation permeability could be altered by the freezing of residual water, formation of hydrates, and fracturing due to thermal stresses. The TOUGH2/EOS7C module for CO 2 -CH 4 -H 2 O mixtures is used as the simulation analysis tool. For verification of EOS7C, the classic Joule-Thomson expansion experiment is modeled for pure CO 2 resulting in Joule-Thomson coefficients in agreement with standard references to within 5-7%. For demonstration purposes, CO 2 injection at constant pressure and with a large pressure drop (~50 bars) is presented in order to show that cooling by more than 20 o C can occur by this effect. Two more-realistic constant-rate injection cases show that for typical systems in the Sacramento Valley, California, the Joule-Thomson cooling effect is minimal. This simulation study shows that for constant-rate injections into high-permeability reservoirs, the Joule-Thomson cooling effect is not expected to create significant problems for CSEGR.

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Section: Introductionmentioning

confidence: 99%

Joule-Thomson cooling due to CO2 injection into natural gas reservoirs

Oldenburg

2007

Energy Conversion and Management

196

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“…Geological storage, though a new technology, shares much in common with the use of CO 2 for enhanced oil recovery (Bondor, 1992). In the early 1990s, various groups of geologists suggested that depleted gas/oil wells and deep saline aquifers could be used to store CO 2 (Holloway and Savage, 1993;Koide et al, 1993). The first, near industrial-scale geological storage project which aims at reducing the CO 2 emission and permanently storing it underground started operating in 1996 at Sleipner Field, offshore Norway.…”

Section: Introductionmentioning

confidence: 99%

Monitoring subsurface CO2 emplacement and security of storage using muon tomography

Kudryavtsev¹,

Spooner²,

Gluyas³

et al. 2012

International Journal of Greenhouse Gas Control

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“…The idea of injecting carbon dioxide (CO2) into depleted natural gas reservoirs for carbon sequestration with enhanced gas recovery was proposed for more than twenty years (Burgt et al, 1992, Koide et al, 1993 and independent analyses have suggested its feasibility (Blok et al, 1997;. However, this idea still has many concerns such as the mixing of CO2 with native methane (CH4) gas, the corresponding degradation of the residual natural gas, and the impact of microstructures or heterogeneity on the earlier CO2 breakthrough Mamora and Seo, 2002;Coats et al, 2009;Oldenburg et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Impact of Rock Microstructures on the Supercritical CO2 Enhanced Gas Recovery

Wang¹,

Liu²,

Liu³

et al. 2010

Proceedings of International Oil and Gas Conference and Exhibition in China

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Supercritical CO2 can be used as a driving gas to displace the native gas CH4 for methane production enhancement. A preferential flow path may result in an earlier CO2 breakthrough. This early breakthrough will in turn reduce the overall sweeping efficiency. In this study, numerical simulations for the supercritical CO2 enhanced gas recovery were conducted on a virtual rock core which contains an inclined fracture for potential preferential flow paths. This paper contains four parts. First, a 3D virtual core is expressed by local porosity. X-ray CT scanning captures a series of 2D digital images of the rock sample. Each 2D CT image is then processed to ascribe a map of pixel values. This map is related with local porosity through threshold techniques. These 2D CT images are then used to build a 3D virtual rock core within which the porosity is defined at each voxel. Second, other physical properties such as diffusivity and permeability within the core are introduced through their empirical relationships with the porosity. Third, a convection and diffusion equation is formulated based on the CO2 injectiondriven flow. In this equation, the heterogeneity of the rock core is introduced via the distribution of initial porosity. Further, its convection velocity is proportional to the concentration gradient of the injected CO2 and the diffusive coefficient is contributed by both molecular and hydrodynamic diffusions. Therefore, a porosity-based finite element CO2-CH4 displacement model is completely formulated. Finally, the effects of fracture-induced heterogeneity on mass transfer and local diffusion mechanisms are numerically studied. The dramatic impact of the preferential pathway on the earlier CO2 breakthrough as well as the overall gas recovery is observed in the numerical simulations.

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Underground storage of carbon dioxide in depleted natural gas reservoirs and in useless aquifers

Cited by 45 publications

References 2 publications

Joule-Thomson cooling due to CO2 injection into natural gas reservoirs

Joule-Thomson cooling due to CO2 injection into natural gas reservoirs

Monitoring subsurface CO2 emplacement and security of storage using muon tomography

Impact of Rock Microstructures on the Supercritical CO2 Enhanced Gas Recovery

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