Naslov
CEMENTITIOUS SEALING MATERIAL: 3D DIGITAL IMAGE BASED CHARACTERIZATION OF PORE SIZE DISTRIBUTION AND MODELING OF TRANSPORT PROPERTIES

Autori
Ukrainczyk, Neven ; Koenders, Eduardus ; van Breugel, Klaas

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering OMAE2013, Volume 6: Polar and Arctic Sciences and Technology ; Offshore Geotechnics ; Petroleum Technology Symposium / - New York (NY) : ASME publishing, 2013, 10954:1-10954:10

ISBN
978-0-7918-5540-9

Skup
32nd International Conference on Ocean, Offshore and Arctic Engineering OMAE2013

Mjesto i datum
Nantes, Francuska, 09.06.2013. - 14.06.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cementitious materials; numerical modeling; 3D digital images; pore structure; size distribution; transport properties; skeletonization; distance transform

Sažetak
Exhausted oil and gas reservoirs are one of the most potential storage facilities to sequestrate the worlds CO2. These reservoirs are sealed with cementitious materials, that should have a long time performance. Therefore, this paper emphasizes the characterization of the evolving capillary pore network and transport properties of the cementitious microstructure used to seal the wellbore. The Hymostruc numerical model is employed to simulate the development of an evolving virtual microstructure of cementitious materials. The simulated 3D microstructures were then digitized to form a matrix of cubic voxels. The pore-size distributions of the obtained virtual microstructures were calculated using a combination of three-dimensional digital image processing algorithms: 1) distance transform and 2) medial axis thinning algorithm to obtain a 3D skeleton of the pore structure. Transport properties of the simulated microstructures are analyzed employing a finite difference 3D transport model. The modeling results are compared with available literature results.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Kemijsko inženjerstvo, Temeljne tehničke znanosti

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