Propsing new approach for litho-facies modeling by use of Markov Chain method , an Iranian oil field
Subject Areas :هانیه نیکو گفتار 1 , عباس بحرودی 2 , بهزاد تخم چی 3 , غلامحسین نوروزی 4
1 - University of Tehran
2 - University of Tehran
3 - University of Tehran
4 - University of Tehran
Keywords: Markov chain Litho-facies Transition matrix Hydrocarbon reservoirs,
Abstract :
Reconnaissance and interpretation of undeerground heterogeneity ,particularly litho-facies,always plays an important role in evaluation and management of hydrocarbon resources.Between various methods presented for modeling discrete characteristics of hydrocarbon reservoirs such as litho-facies, one with a more proper conformity with actual condition of reservoir facies is of great advantage .Formed on basis of probability and presenting transition matrix.markov method is widely applied as a powerful tool for modeling the facies .In the present study ,first the method is introduced in details;then in order to optimize it. suggestion is made based on changing the type of the move of chain in simulation procedure. The case study is a12 km long 110 m thick section of Anhydrite and three major members of Asmari Formation from an oilfield ,south-West Iran .This section is modeled through Markov procedure and proposed solution.The models set indicated that on basis of using the data from two wells and five seismic horizons.best result ,with 90% accuracy, is for reciprocating motion.