Simulations for CO2 Injection Projects With Compositional Simulator

Hurter, Suzanne; Berge, J; Labregere, Diane

doi:10.2523/108540-ms

Cited by 35 publications

(30 citation statements)

References 7 publications

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“…The mutual solubility of CO 2 and water includes a correction for salinity [60,61]. Its functionalities include describing dry-out and salt precipitation in addition to an incorporated speciation routine [27], which are not applied herein.…”

Section: Eclipsementioning

confidence: 99%

A benchmark study on problems related to CO2 storage in geologic formations

et al. 2009

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This paper summarises the results of a benchmark study that compares a number of mathematical and numerical models applied to specific problems in the context of carbon dioxide (CO 2 ) storage in geologic formations. The processes modelled comprise ad-H. Class (B) · A. Ebigbo · R. Helmig · M. Darcis · B. Flemisch vective multi-phase flow, compositional effects due to dissolution of CO 2 into the ambient brine and nonisothermal effects due to temperature gradients and the Joule-Thompson effect. The problems deal with leakage through a leaky well, methane recovery enhanced P. Audigane BRGM, French Geological Survey, 410 Comput Geosci (2009) 13:409-434 by CO 2 injection and a reservoir-scale injection scenario into a heterogeneous formation. We give a description of the benchmark problems then briefly introduce the participating codes and finally present and discuss the results of the benchmark study.

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Section: Eclipsementioning

confidence: 99%

A benchmark study on problems related to CO2 storage in geologic formations

et al. 2009

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“…In the meantime, as vaporization progresses, the concentration of dissolved salt in the brine builds up. When the salt concentration exceeds its solubility limit under the thermodynamic state of a given reservoir, the excess salt will precipitate out of the aqueous phase (salting-out) and alter the porosity and permeability of the formation (Cinar and Riaz, 2014;Hurter et al, 2007). Strong evidences on the occurrence of salt precipitation primarily have come from field observations of gas injections or storage (Bette and Heinemann, 1989;Jasinski et al, 1997;Kleinitz et al, 2001).…”

Section: Introductionmentioning

confidence: 97%

Salt precipitation during CO 2 storage—A review

Miri

Hellevang

2016

International Journal of Greenhouse Gas Control

169

127

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“…The major effects are captured by the Darcy approach but some differences are still observed by the authors between the experiments and the model especially with the low permeability sample. In the context of CO 2 storage, some numerical simulations have been done with reservoir simulators to evaluate mainly the extension of the drying zone in the near wellbore region and to calculate the amount and distribution of salt precipitated (Hurter et al 2007;Müller et al 2008). But as mentioned by the authors, experimental study is still needed to get a better understanding on evaporation rate in the condition of gas injection.…”

Section: Introductionmentioning

confidence: 98%

Drying Rate Measurements in Convection- and Diffusion-Driven Conditions on a Shaly Sandstone Using Nuclear Magnetic Resonance

2011

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Carbon Capture and Storage (CCS) is one of the solutions studied to reduce greenhouse gas accumulation in the atmosphere. Depleted oil and gas reservoirs have been studied for potential storage sites but also saline aquifers that have the advantages of much larger pore volume. In this latter case, injection of large volume of anhydrous carbon dioxide will lead to a strong water desaturation of the near wellbore region because of evaporation mechanisms. Even the capillary trapped water can be removed by thermodynamical transfer of water vapor in the CO 2 phase. The extension in time and space of the dry zone will be controlled by the drying rate induced by the gas flow. Consequences of drying may induce alteration of the injectivity by salt precipitation and/or alteration of the rock fabric itself, especially for shaly sandstones in the case of clay drying. The context of CCS has raised new interests in the understanding of drying kinetic where the water vapor is evacuated by gas convection. In this study, we investigated experimentally the drying rate evolution with time on a shaly sandstone sample in two conditions of drying: convective and diffusive. In convective conditions, air is injected at different flow rates through the porous media in conditions of drying representative of a CO 2 injection site at one million ton per year. In diffusive conditions, no flow is imposed and the water vapor escape by diffusion. Drying rates dynamics in both conditions were measured by Nuclear Magnetic Resonance (NMR) and compared. We varied the temperature and the salinity in diffusive-driven drying and the gas flow rate in convective-driven drying. The water distribution in the pore network and the water saturation profiles were monitored continuously using T 2 relaxation and 1D imaging NMR techniques. For the range of temperature and air flow rate used, we show that drying rates in the two drying conditions are similar but not identical. They both present different periods characteristic of the main mechanisms for water mass transfer. Drying rate has a power law dependence on the temperature, as predicted by thermodynamic, and drying rate was found proportional to the flow rate in convective drying. Presence of salt has a complex effect: an increase of the drying rate at early stage of drying followed by a strong decrease for the remaining time of drying.Y. Peysson (B) · M. Fleury · V. Blázquez-Pascual IFP Energies nouvelles, 1 et 4

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Simulations for CO2 Injection Projects With Compositional Simulator

Cited by 35 publications

References 7 publications

A benchmark study on problems related to CO2 storage in geologic formations

A benchmark study on problems related to CO2 storage in geologic formations

Salt precipitation during CO 2 storage—A review

Drying Rate Measurements in Convection- and Diffusion-Driven Conditions on a Shaly Sandstone Using Nuclear Magnetic Resonance

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