Resurrection of a reservoir sandstone from tomographic data using three-dimensional printing
Autor: | Buono Antonio S, Shawn M. Fullmer, Chris Harding, Sergey Ishutov, Joseph N. Gray, Franciszek Hasiuk |
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Rok vydání: | 2017 |
Předmět: |
0208 environmental biotechnology
Energy Engineering and Power Technology Mineralogy Geology 02 engineering and technology Porosimetry 010502 geochemistry & geophysics 01 natural sciences Petroleum reservoir Grain size 020801 environmental engineering law.invention Permeability (earth sciences) Fuel Technology Geochemistry and Petrology law Three dimensional printing Earth and Planetary Sciences (miscellaneous) Tomography Porosity Stereolithography 0105 earth and related environmental sciences |
Zdroj: | AAPG Bulletin. 101:1425-1443 |
ISSN: | 0149-1423 |
Popis: | Three-dimensional (3-D) printing provides an opportunity to build lab-testable models of reservoir rocks from tomographic data. This study combines tomography and 3-D printing to reproduce a sample of the Fontainebleau sandstone at different magnifications to test how this workflow can help characterization of transport properties at multiple scales. For this sandstone, literature analysis has given a porosity of 11%, permeability of 455 md, mean pore throat radius of 15 μm, and a mean grain size of 250 μm. Digital rock analysis of tomographic data from the same sample yielded a porosity of 13%, a permeability of 251 md, and a mean pore throat radius of 15.2 μm. The 3-D printer available for this study was not able to reproduce the sample’s pore system at its original scale. Instead, models were 3-D printed at 5-fold, 10-fold, and 15-fold magnifications. Mercury porosimetry performed on these 3-D models revealed differences in porosity (28%–37%) compared to the literature (11%) and to digital calculations (12.7%). Mercury may have intruded the smallest matrix pores of the printing powder and led to a greater than 50% increase in measured porosity. However, the 3-D printed models’ pore throat size distribution (15 μm) and permeability (350–443 md) match both literature data and digital rock analysis. The powder-based 3-D printing method was only able to replicate parts of the pore system (permeability and pore throats) but not the pore bodies. Other 3-D printing methods, such as resin-based stereolithography and photopolymerization, may have the potential to reproduce reservoir rock porosity more accurately. |
Databáze: | OpenAIRE |
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