Strain and shortening analyses in the Asmari horizon, Kupal oil field, Khuzestan province
Subject Areas : Geoscience Fields in relation with Petroleum Geology
Babak Samani
1
(دانشکده علوم زمین دانشگاه شهید چمران اهواز)
Mina Parvin
2
(Faculty of Earth science, Shahid Chamran University of Ahvaz, Ahvaz, Iran)
Abbas Charchi
3
(Faculty of Earth Sciences, Shahid Chamran University of Ahvaz)
Mohammad Hossein Talebifard
4
(National Iranian South Oil Company, Ahvaz, Iran)
Keywords: Dezful embayment, Kupal oil field, Fold aspect ratio, Strain ratio, Shortening ,
Abstract :
Kupal Oil Field is one of the important oil fields in the Zagros Basin, located in the eastern part of the Dezful embayment, adjacent to Aghajari Oil Field and Marun Oil Field. Some characteristics of the fold elements, such as the fold interval angle and axial surface, were determined in the Asmari folded horizon using the interpreted seismic profiles. Based on the deviation of the axial surface from the vertical surface and determination of shear angle and shear strain, minimum and maximum quadratic stretch and strain ratio (R) values were calculated in different parts of the anticline. With application of graphical functions the amounts of fold aspect ratio were determined along the anticline. Base on the results, the amounts of shear strain varies from 0.01 to 0.09 in deferent parts of anticline. Also results show the amounts of strain ratio in range of 1.25 to 1.38 and shortening about 5% to 17% in different parts of the kupal anticline oil field.
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