Document Type : Original Research Paper


1 M.Sc. Student, Department of Geology, Faculty of Earth science, Shahid Beheshti university, Tehran, Iran

2 Professor, Department of Geology, Faculty of Earth science, Shahid Beheshti university, Tehran, Iran

3 M.Sc., Iranian Offshore Oil Company (IOOC), Tehran, Iran

4 Professor, Research Institute for Earth Sciences, Geological Survey of Iran (GSI), Tehran, Iran


The main purpose of this study is to investigate and structureral analyzes of Sirri oil field by subsurface geophysical data. In order to Seismic interpretation from 3 seismic lines (LL3, LL4 and LL5) picked up by Iranian Offshore Oil Company and SIC-1 well Data was used. In addition to interpreting the geological horizons and understanding the stratigraphic-structural evolution of the region they have also been used. The study area is located in the south of Iran and in the Persian Gulf. In this study, the geological analysis of the area has been studied by two-dimensional seismic surveying method and petrophysical images (up to Darian Formation) and Petrel software. The results show that the rising of the salt dome related to the Hormuz series has affected the overlying Formations in these field, and has created a dome shaped state for most of the Formations. Rising of the salt and folding of the sediments eventually resulted in faulting of the sediments. During the study and measurement of the angle between the edges, it was found that 15.2% of the folds are open and 84.8% are of the soft folds.


Main Subjects

 Barth, H. J. and Yarkhan, N., 2008-Protecting the Gulfʼs marine ecosystems from pollution, springer, p. 1-21.
Bashari. A., and Zaree. E, 2003- Petrography Factors And Petrophysical Parameters, An Approach To The Reservior Characterization Of The Dena Field In The Persian Gulf. Reservior Characterization and Simulation In The 21st Century, AAPG International Conference And Exhibition Technical Program.
Falcon, N., 1967- Southern Iran, Zagros Mountains: In Spencer, A., (Editor), Mesozoic-Cenozoic orogenic belts: Geol. Soc. London, 4, 199-211.
Farzadi, P., 2006- Seismic facies analysis based on 3D multi-attribute volume classification: Dariyan formation, SE Persian Gulf, Journal of petroleum geology, v.29,p.159-174.
Ghajari, A., Kamali, M. and Mortazavi, S. A., 2013- A Comprehensive study of Lafan Shale Formation in Sirri oil fields, offshore Iran: Implications for borehole stability, Journal Of Petroleum Science, v. 107, p. 50-56.
Ghazaban, F., 2007- Petroleum Geology of the Persian Gulf by", PUBLISHER: Tehran University and National Iranian Oil Company, p. 707.
Hyne, N. J., 2003-A non-tectonical guid to petroleum exploration, drilling and production, Third edition, Pennwall, p. 667.
Ishwar, N. B. and Bhardwaj, J. A., 2013- Petrophysical well log analysis for hydrocarbon exploration in parts of Assam Arakan Basin, India, 10th Biennial International Conference and Exposition, Kochi, Kerala, India.
Jahani, S., 2008- Salt tectonics, folding and faulting in the Eastern Fars and Southern offshore provinces (Iran), Ph, D. Dissertation, Universite de Cergy Pontoise, France, p. 215.
Jahani, S., Collot, J. P., Frison de Lamotte, D., Letouzey, J. and Leturmy, P., 2007- The salt diapirs of the eastern Fars province (Zagros, Iran): A brief outline of their past and present, In: O. Lacombe, J. Lave, F. Roure, J. Verges, eds., Trust belt and Forland Basin, Springer, Berlin, p. 287-306.
Jahani, S., Collot, J. P., Letouzey, J. and Frizon de Lamotte, D., 2009- The eastern termination of the Zagros Fold-and-Thrust Belt. Iran: Structures, evolution, and relationships between salt plugs, folding, and faulting, Tectonics, p. 28, TC6004.
Purser, B. H. and Seibold,  E., 1973- The principal environmental factors influencing Holocene sedimentation and diagenesis in the Persian Gulf, Springer, p. 1-9.
Ramsay, J. G. and Huber, M. I., 1989-The techniques of modern structural geology, Strain Analysis, Academic Press, v. 1, p. 384.
Richardson, F., Lees, G. and De Bockh, H., 1929- The Structure of Asia: Edited by Gregory, J. W., Methuen London, 125-159.
Suardana, M., Samodra, A., Wahidin, A. and Rachmat, Sule, M., 2013- Identification of fracture basement reservoir using integrated well data and seismic attributes: case study at Ruby Field, Northwest Java Basin, Search and Discovery Article, AAPG Annual convention and exhibition, Pittsburgh, Pennsylvania, May 19-22.
Twiss, R. J. and  Moores, E. M., 1992- Structural Geology, University Of California At Davis, p. 532.