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SUMMARY:Characterising heterogeneity in multiphase flow and reactive trans
 port processes in application to CO2 storage - Dr Sam Krevor\, Imperial Co
 llege London
DTSTART:20170126T113000Z
DTEND:20170126T123000Z
UID:TALK69557@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:A system of CO2 and brine flowing through permeable rock\, rel
 evant to CO2\nstorage underground\, includes a wide range of physical and 
 chemical\nprocesses. These are conventionally modeled using continuum rock
 \nproperties ­ permeability\, dispersion\, mineral surface area. The\nfou
 ndational assumption that within the rocks there exists a scale where\nthe
  properties are homogenous is a significant source of uncertainty and\nina
 ccuracy. Improving on this\, however\, presents challenges for both\nmodel
 ing and observation. How can we derive information from laboratory\nobserv
 ations that is both practical to obtain and practical to use for\nmore rig
 orous modeling efforts?\n\nI will present the results of investigations in
 to many of the\nphysico-chemical processes relevant to CO2 storage across 
 the scales that\ncan be observed in the laboratory [1-3]. Within the pores
  of the rocks\nsynchrotron and laboratory X-ray micro tomography has been 
 used to observe\ndynamic and equilibrium fluid displacement. It has also b
 een used to\ncharacterize the distribution of reactive mineral surface are
 a. At the\ncentimeter scale conventional X-ray imaging has been used to ch
 aracterize\nsolute transport in 3D and to evaluate the impact of rock hete
 rogeneity on\nmultiphase flow and trapping. Combined the results show the 
 pervasive role\nof heterogeneity on macroscopic flow and reactive processe
 s. They also\nprovide insight into viable paths for incorporating this inf
 ormation into\nmore rigorous models of multiphase flow and reactive transp
 ort in the\nsubsurface.  
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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