If we are conducting a core flooding experiment where we are passing two fluids viz., CO2 and water/brine, then how do we calculate irreducible water saturation or saturation without using CAT scanning?
Well, you can determine the Bulk Volume irriducible (BVI) for the water saturation by performing a NMR (Nuclear Magnetic Resonance) measurement. You can find more details about the procedure in the conference paper, for which I have added the link to this message.
https://www.onepetro.org/conference-paper/SPE-20561-MS
Another method would be carry out drainage experiments and determine Pc-S relationships. As the Pc is increased there would be a saturation (for certain fluid pair) which would not decrease even if the Pc is increased. You can define that as the irreducible saturation. We have done experiments with CO2/water flow in porous media but it is not published yet. You may look at some of our other papers, e.g.,
Das, DB and Mirzaei, M (2012) Dynamic effects in capillary pressure relationships for two-phase flow in porous media: Experiments and numerical analyses, AIChE Journal, 58(12), pp.3891-3903, ISSN: 0001-1541. DOI: 10.1002/aic.13777.
Mirzaei, M and Das, DB (2013) Experimental investigation of hysteretic dynamic effect in capillary pressure-saturation relationship for two-phase flow in porous media, AIChE Journal, 59, pp.00-00, DOI: 10.1002/aic.14121.
Das, DB and Mirzaei, M (2013) Experimental measurement of dynamic effect in capillary pressure relationship for two-phase flow in weakly layered porous media, AIChE Journal, 59(5), pp.1723-1734, ISSN: 0001-1541. DOI: 10.1002/aic.13925.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Waves