Determination of mechanical and sedimentological properties of Asmari reservoir in one of the northwestern Dezful Embayment oilfields

Document Type : Research Paper

Authors

1 School of Geology, College of Science, University of Tehran, Iran

2 Department of Geology, College of Science, University of Tabriz, Iran

3 Petroleum Engineering at Zagros Company, Shiraz, Iran

4 Geophysics at Iranian Central Oil Field Company, Tehran, Iran

Abstract

Asmari Formation is the most prolific and important hydrocarbon reservoir in south of Iran. This formation in the studied oilfield has mixed carbonate-siliciclastic lithology. Also, changes in its elastic modulus are correlatable with facies changes. To address these changes, we investigated the relation between sedimentary environment (facies) and texture with rock elastic properties (young’s modulus). Data from three wells are analyzed and used for the study of facies and young’s modulus. Based on elastic properties, facies and texture changes as well as petrophysical characteristics seven RMFs are recognized in the studied formation. To predict RMFs at any location in the field more efficiently, and capturing variations of the lateral formation properties as indicated by the post- stack seismic data, a 3D rock mechanical facies model is constructed. In this method, RMFs are correlatable between studied wells and map able by seismic attribute in the field scale. Finally, the distribution of RMFs and their related properties are recognized in the studied field.
 

Keywords

References

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Journal of Petroleum Research
Volume 26, 95-5 - Serial Number 90
March and April 2017
Pages 114-128

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