1887

Abstract

Summary

For a water-saturated cap-rock, which consists of a low-permeability porous material, the wettability of the reservoir rock-connate water- CO2 system and the interfacial tension (IFT) between CO2 and connate water are the significant parameters for the evaluation of the capillary sealing. Also, the amount of capillary-trapped CO2 depends on the wettability of reservoir rocks. The wettability of the rock matrix has a strong effect on the distribution of phases within the pore space and thus on the entire displacement mechanism and storage capacity. In this work, the equilibrium contact angles of water/shale system were determined with CO2 for a wide range of pressures at a constant temperature of 318 K by using the dynamic captive bubble method. The results reveal that intermediate-wet conditions and hence possible leakage of CO2 must to be considered at relatively high pressures, however, the salt concentration of the water in the shales plays an important role too. The results show that this estimate is highly dependent on the pore structure, fluid composition and pressure/temperature conditions of the reservoirs. These properties need to be first evaluated before estimates for shale capillarity is used.

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/content/papers/10.3997/2214-4609.201413370
2015-06-01
2020-11-27
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References

  1. Alotaibi, M. B., Azmy, R. M. and Nasr-El-Din, H. A.
    [2010] Wettability Studies Using Low-Salinity Water in Sandstone Reservoirs.
    [Google Scholar]
  2. Ameri, A., Shojai Kaveh, N., Rudolph, E. S. J., Wolf, K. H., Farajzadeh, R. and Bruining, J.
    [2013] Investigation on Interfacial Interactions among Crude Oil–Brine–Sandstone Rock–CO2 by Contact Angle Measurements. Energy & Fuels27(2), 1015–1025.
    [Google Scholar]
  3. Basbug, B., Gumrah, F. and Oz, B.
    [2007] Simulating the Effects of Deep Saline Aquifer Properties for CO2 Sequestration. (10).
    [Google Scholar]
  4. Chalbaud, C., Robin, M., Bekri, S. and Egermann, P.
    [2007] Wettability impact on CO2 storage in aquifers: visualisation and quantification using micromodel tests, pore network model and reservoir simulations. International Symposium of the Society of Core Analysts, Calgary, Canada.
    [Google Scholar]
  5. Chiquet, P., Broseta, D. and Thibeau, S.
    [2007] Wettability alteration of caprock minerals by carbon dioxide. Geofluids7, 112–122.
    [Google Scholar]
  6. Chiquet, P., Broseta, D. F. and Thibeau, S.
    [2005] Capillary Alteration of Shaly Caprocks by Carbon Dioxide. SPE Europec/EAGE Annual Conference. Society of Petroleum Engineers, Madrid, Spain.
    [Google Scholar]
  7. Chiquet, P., Daridon, J.-L., Broseta, D. and Thibeau, S.
    [2007] CO2/water interfacial tensions under pressure and temperature conditions of CO2 geological storage. Energy Conversion and Management48(3), 736–744.
    [Google Scholar]
  8. Espinoza, D. N. and Santamarina, J. C.
    [2010] Water-CO2-mineral systems: Interfacial tension, contact angle, and diffusion-Implications to CO2 geological storage. Water Resources Research46.
  9. IPCC
    IPCC. [2005] Carbon Dioxide Capture and Storage IPCC, B.Metz, O.Davidson, H. d.Coninck, M.Loos and L.Meyer (eds.), 431.
    [Google Scholar]
  10. Jiamin, W., Yongman, K. and Jongwon, J.
    [Year] Wettability alteration upon reaction with scCO2: Pore scale visualization and contact angle measurements. Goldschmidt2011.
    [Google Scholar]
  11. Salimi, H., Wolf, K.-H. and Bruining, J.
    [2012] The influence of capillary pressure on the phase equilibrium of the CO2–water system: Application to carbon sequestration combined with geothermal energy. International Journal of Greenhouse Gas Control11, Supplement(0), S47–S66.
    [Google Scholar]
  12. Shariat, A., Moore, R. G., Mehta, S. A., Fraassen, K. C. V., Newsham, K. E. and Rushing, J. A.
    [2012] Laboratory Measurements of CO2-H2O Interfacial Tension at HP/HT Conditions: Implications for CO2 Sequestration in Deep Aquifers. Carbon Management Technology Conference. Carbon Management Technology Conference, Orlando, Florida, USA.
    [Google Scholar]
  13. Shojai Kaveh, N., Rudolph, E. S. J., Rossen, W. R., Hemert, P. v. and Wolf, K. H.
    [2013] Interfacial Tension and Contact Angle Determination in Water-sandstone Systems with Injection of Flue Gas and CO2. IOR 2013 -From Fundamental Science to Deployment EAGE, Saint Petersburg, Russia.
    [Google Scholar]
  14. Shojai Kaveh, N., Rudolph, E. S. J., Van Hemert, P., Rossen, W. R. and Wolf, K. H.
    [2014] Wettability evaluation of a CO2/water/bentheimer sandstone system: Contact angle, dissolution, and bubble size. Energy and Fuels28(6), 4002–4020.
    [Google Scholar]
  15. Shojai Kaveh, N., Rudolph, E. S. J., Wolf, K.-H. A. A. and Ashrafizadeh, S. N.
    [2011] Wettability determination by contact angle measurements: hvBb coal–water system with injection of synthetic flue gas and CO2. Journal of Colloid and Interface Science364(1), 237–247.
    [Google Scholar]
  16. Shojai Kaveh, N., Wolf, K. H., Ashrafizadeh, S. N. and Rudolph, E. S. J.
    [2012] Effect of coal petrology and pressure on wetting properties of wet coal for CO2 and flue gas storage. International Journal of Greenhouse Gas Control11, Supplement(0), S91–S101.
    [Google Scholar]
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