Pore-scale imaging and analysis of low salinity waterflooding in a heterogeneous carbonate rock at reservoir conditions

Autor: Ahmed M. Selem, Nicolas Agenet, Ying Gao, Ali Q. Raeini, Martin J. Blunt, Branko Bijeljic

Publikováno v: Scientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)

Abstract X-ray micro-tomography combined with a high-pressure high-temperature flow apparatus and advanced image analysis techniques were used to image and study fluid distribution, wetting states and oil recovery during low salinity waterflooding (L

Externí odkaz: https://doaj.org/article/143c2600ab254915ae9e91107713c43d

New type of pore-snap-off and displacement correlations in imbibition

Autor: Martin J. Blunt, Ali Q. Raeini, Mosayeb Shams, Tom Bultreys, Kamaljit Singh

Publikováno v: JOURNAL OF COLLOID AND INTERFACE SCIENCE

Hypothesis Imbibition of a fluid into a porous material involves the invasion of a wetting fluid in the pore space through piston-like displacement, film and corner flow, snap-off and pore bypassing. These processes have been studied extensively in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cb0e90b7d557e182234599dbad0465f
https://doi.org/10.1016/j.jcis.2021.11.109

Drainage Capillary Pressure Distribution and Fluid Displacement in a Heterogeneous Laminated Sandstone

Autor: Qingyang Lin, Martin J. Blunt, Ali Q. Raeini, Branko Bijeljic, Holger Rieke

Publikováno v: Geophysical Research Letters. 48

We applied three-dimensional X-ray microtomography to image a capillary drainage process (0–1,000 kPa) in a cm-scale heterogeneous laminated sandstone containing three distinct regions with different pore sizes to study the capillary pressure. We u

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15b987a6ac4a9d205d2fb0abf561f87b
https://doi.org/10.1029/2021gl093604

Reliability of Algorithms Interpreting Topological and Geometric Properties of Porous Media for Pore Network Modelling

Autor: Qingrong Xiong, Todor G. Baychev, Ali Q. Raeini, Tristan Lowe, Philip J. Withers, Arash Rabbani, Andrey P. Jivkov

Publikováno v: Baychev, T, Jivkov, A, Rabbani, A, Raeini, A, Xiong, Q, Lowe, T & Withers, P 2019, ' Reliability of algorithms interpreting topological and geometric properties of porous media for pore network modelling ', Transport in Porous Media, vol. 128, pp. 271-301 . https://doi.org/10.1007/s11242-019-01244-8

Pore network models (PNMs) offer a computationally efficient way to analyse transport in porous media. Their effectiveness depends on how well they represent the topology and geometry of real pore systems, for example as imaged by X-ray CT. The perfo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4375727aa2e8649f61fdc1c5eebec9fd
https://doi.org/10.1007/s11242-019-01244-8

Dynamic fluid configurations in steady-state two-phase flow in Bentheimer sandstone

Autor: Ying Gao, Martin J. Blunt, Branko Bijeljic, Ali Q. Raeini

Fast synchrotron tomography is used to study the impact of capillary number, $\text{Ca}$, on fluid configurations in steady-state two-phase flow in porous media. Brine and $n$-decane were co-injected at fixed fractional flow, ${f}_{w}=0.5$, in a cyli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a2e533018067c9b212ec8ef2b118d87
http://hdl.handle.net/10044/1/86450