Modeling of the spatial facies distribution by Markov random fields

---

by Håkon Tjelmeland (Norwegian University of Science and Technology, Norway),in Baafi, E.Y. and Schofield, N.A. (eds.) Geostatistics Wollongong '96, Proceedings of the Fifth International Geostatistical Congress, Wollongong, Australia, September 22-27, 1996, Kluwer Academic Publishers, 512-523.

---

Markov random fields (MRFs) have been suggested as a model for the spatial distribution of sedimentary facies in petroleum reservoirs. However, unfavorable large-scale properties of common MRFs have restrained their popularity for reservoir characterization. In this article, we review a class of MRFs with more realistic large-scale properties and present simulation examples.