Effect of temperature on ultrasonic velocities of unconsolidated sandstones reservoirs during the SAGD recovery process
| العنوان: | Effect of temperature on ultrasonic velocities of unconsolidated sandstones reservoirs during the SAGD recovery process |
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| المؤلفون: | M. Mainguy, J. F. Nauroy, Pierre Delage, D. H. Doan |
| المساهمون: | IFP Energies nouvelles (IFPEN), Géotechnique (cermes), Laboratoire Navier (navier umr 8205), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | Scopus-Elsevier EPJ Web of Conferences, Vol 6, p 36003 (2010) 44th US Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium 44th US Rock Mechanics Symposium and 5th U.S.-Canada Rock Mechanics Symposium, 2010, United States |
| مصطلحات موضوعية: | QC1-999, Mineralogy, 02 engineering and technology, 010502 geochemistry & geophysics, 01 natural sciences, Steam-assisted gravity drainage, Viscosity, 020401 chemical engineering, Caprock, Geotechnical engineering, 0204 chemical engineering, Porosity, oil sand, bitumen, Ciz and Shapiro, 0105 earth and related environmental sciences, mechanical and acoustic properties, viscous fluids, Physics, temperature, Cementation (geology), Permeability (earth sciences), ultrasonic wave velocity, Asphalt, Oil sands, heavy oil, Geology, steam-assisted gravity drainage SAGD |
| الوصف: | The steam assisted gravity drainage (SAGD) is a thermal in-situ technology that has been successfully used to enhance the recovery of heavy oil and bitumen in the Western Canada and in the Eastern Venezuela basins. Pressure and temperature variations during SAGD operations induce complex changes in the mechanical and acoustic properties of the reservoir rocks as well as of the caprock. To study these changes, measurements of ultrasonic wave velocities Vp, Vs were performed on both reconstituted samples and natural samples from oil sands reservoir. Reconstituted samples were made of Fontainebleau sands with a slight cementation formed by a silicate solution. They have a high porosity (about 30 % to 40 %) and a high permeability (up to 10 D). Natural oil sands samples are unconsolidated sandstones extracted from the fluvio-estuarine McMurray Formation in Alberta (Canada). The saturating fluids were bitumen and glycerol with a strongly temperature dependent viscosity. The tests were carried out at different temperatures (in the range 40° and +86°C) and at different effective pressures (from 12 bars up to 120 bars). Experimental results firstly showed that the elastic wave propagation velocities measured are strongly dependent on temperature and pore fluid viscosity whereas little effect of effective pressure was observed. Velocities decreased with increasing temperature and increased with increasing effective pressure. These effects are mainly due to the variations of the saturating fluids properties. Finally, the tests were modelled by using Ciz and Shapiro (2007) approach and satisfactory velocities values were obtained with highly viscous fluids, a case that cannot be easily explained by using the poro-elastic theory of Biot-Gassmann. |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b03c358eaabd140d63228720ca5be907 http://www.scopus.com/inward/record.url?eid=2-s2.0-78751556895&partnerID=MN8TOARS |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....b03c358eaabd140d63228720ca5be907 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |