1. n. [Reservoir Characterization]

An algorithm built on a Markov-type hypothesis, whereby collocated secondary information is assumed to screen out secondary data from farther away. The method allows the direct cosimulation of several interdependent variables, integrating several different sources of soft information.

Reference: Almeida AS and Frykman P: "Geostatistical Modeling of Chalk Reservoir Properties in the Dan Field, Danish North Sea," in Yarus JM and Chambers RL (eds): Stochastic Modeling and Geostatistics, AAPG Computer Applications in Geology, no. 3. AAPG, Tulsa, Oklahoma, USA, 1994.