Special core analysis

In the petroleum industry, special core analysis, often abbreviated SCAL or SPCAN, is a laboratory procedure[1] 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. [2][3]

References
  1. http://www.glossary.oilfield.slb.com/Display.cfm?Term=special%20core%20analysis%20(SCAL)
  2. Mirzaei-Paiaman, A.; Asadolahpour, S.R.; Saboorian-Jooybari, H.; Chen, Z.; Ostadhassan, M. (2020). "A new framework for selection of representative samples for special core analysis". Article Published in Petroleum Research by Elsevier B.V., 2020.
  3. Mirzaei-Paiaman, A.; Saboorian-Jooybari, H. (2016). "A method based on spontaneous imbibition for characterization of pore structure: Application in pre-SCAL sample selection and rock typing". Article Published in Journal of Natural Gas Science and Engineering by Elsevier B.V., Volume 35, Part A, September 2016, Pages 814-825.
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