Speaker
Description
The fourth-generation synchrotron facility provides X-rays from low to high energy with a high flux of photons that, coupled with advanced detector technology, allow routine acquisition of high-resolution tomograms in a few seconds. In addition to high-throughput experiments, in this case, computed tomography can also be resolved in time, which is the 4D CT scan. Among the wide range of interesting physical phenomena to be solved in time by three-dimensional images, the fluid flow in porous materials is one that is present in several areas, such as oil industry, agriculture, and environmental science. In particular, the flow of fluids in very deep reservoirs is an important scientific case, where the porous material is under very high pressure (HP) and, normally, also at high temperatures (HT). With that in mind, the MOGNO group, in partnership with the energy company Equinor and Petrobras, is installing an HPHT Fluid Flow system at the beamline. This work aims to show the scientific community the system to be installed, promote discussions about the device and future experiments, such as time-resolved fluid flow in porous media, and take this perspective to other areas of knowledge. MOGNO is an imaging beamline designed to deliver micro and nano computed tomography, focused on multi-scale analysis (zoom tomography) [1], and 4D imaging (time-resolved 3D) [2] through in-situ experiments. The analysis of rock cores is vital in various areas, including energy, CO2 sequestration, and understanding Earth's evolution. To meet these specifications and study such materials, the MOGNO beamline was designed with three different energy levels and a high photon flux.
Experimental setup: Fluid flow is among the most challenging processes to observe in 3D and in situ, especially concerning spatial and temporal resolution. Addressing this challenge, the MOGNO group, in partnership with Equinor and Petrobras, is currently installing a high-pressure (HP) and high-temperature (HT) Fluid Flow system with the following key features:
• Confining pressure of up to 15k psi for specific core holders.
• Operating temperature capacity up to 90°C.
• Achieving temporal resolution in the order of seconds.
• Samples with a diameter of 12 mm and 1 inch.
• Simultaneous injection of two fluids for experimental flexibility.
• Prepared for both: high salinity seawater and crude-oil.
• Offers options for top/bottom and bottom/top injection configurations.
| References | [1] Krenkel, M., Markus, A., Bartels, M., Dullin, C., Alves, F. and Salditt, T., 2015. Phase-contrast zoom tomography reveals precise locations of macrophages in mouse lungs. Scientific reports, 5(1), p.9973. [2] Pak, T., Luz Jr, L.F.D.L., Tosco, T., Costa, G.S.R., Rosa, P.R.R. and Archilha, N.L., 2020. Pore-scale investigation of the use of reactive nanoparticles for in situ remediation of contaminated groundwater source. Proceedings of the National Academy of Sciences, 117(24), pp.13366-13373. |
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| Country | Brazil |
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