special core analysis
In the petroleum industry, special core analysis, often abbreviated SCAL or SPCAN, is a laboratory procedure{{cite web |url=http://www.glossary.oilfield.slb.com/Display.cfm?Term=special%20core%20analysis%20(SCAL) |title=Oilfield Glossary: Term 'special core analysis (SCAL)' |website=www.glossary.oilfield.slb.com |url-status=dead |archive-url=https://web.archive.org/web/20060322194609/http://www.glossary.oilfield.slb.com/Display.cfm?Term=special%20core%20analysis%20%28SCAL%29 |archive-date=2006-03-22}} for conducting flow experiments on core plugs taken from a petroleum reservoir. Special core analysis is distinguished from "routine (RCAL) or conventional (CCAL) core analysis" by adding more experiments, in particular including measurements of two-phase flow properties, determining relative permeability, capillary pressure, wettability, and electrical properties. Due to the time-consuming and costly character of SCAL measurements, routine core analysis (RCAL) data should be inspected thoroughly to select a representative subset of samples for SCAL.{{cite journal |doi=10.1016/j.ptlrs.2020.06.003|title=A new framework for selection of representative samples for special core analysis|year=2020|last1=Mirzaei-Paiaman|first1=Abouzar|last2=Asadolahpour|first2=Seyed Reza|last3=Saboorian-Jooybari|first3=Hadi|last4=Chen|first4=Zhangxin|last5=Ostadhassan|first5=Mehdi|journal=Petroleum Research|volume=5|issue=3|pages=210–226|doi-access=free}}{{cite journal |doi=10.1016/j.jngse.2016.09.023|title=A method based on spontaneous imbibition for characterization of pore structure: Application in pre-SCAL sample selection and rock typing|year=2016|last1=Mirzaei-Paiaman|first1=Abouzar|last2=Saboorian-Jooybari|first2=Hadi|journal=Journal of Natural Gas Science and Engineering|volume=35|pages=814–825}}