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Application of 3D Structural Modeling to Analyze the Structural Geometry and Kinematic Evolution: A Case Study from Lab-e-Safid and Qale Nar Subsurface Anticlines in the Northern Dezful Embayment, Iran

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Abstract

3D structural modeling is an effective technique for the 3D structural analysis of anticlines. The 3D interpretation of structures is most of the matter in the oil development of subsurface reservoirs. In this study, the 3D structural modeling was used for the analysis of Lab-e-Safid and Qale Nar subsurface anticlinal oilfields in the northern Dezful Embayment. The main objectives are determining the structural style in the different parts and the kinematic evolution modeling of these anticlines. 2D cross-sections, extracted from 3D models, were compared to 2D interpreted seismic profiles. Anticlines are formed above the intermediate décollement horizon in the northern Dezful Embayment. Structural style varies horizontally and vertically. Lab-e-Safid anticline shows an early step in the evolution path. In contrast, Qale Nar anticline indicates the final step of the evolution path. The Qale Nar anticline is a box fold in the western part and concentric fold in the central and eastern parts. The fold shape of Lab-e-Safid is stationary along the axial plane. Late-stage folding evolution is associated with the complexity structural style of folding. Progressive deformation of early detachment anticlines caused the development of folding followed by faulting in the forelimb.

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ACKNOWLEDGMENTS

The authors are indebted to the National Iranian South Oil Company (NISOC) for providing the wells data and seismic profiles for this study. This research was supported by the Shiraz University Research Council (SURC) grant for Ph.D. thesis which is gratefully acknowledged.

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Authors and Affiliations

  1. Shiraz University, College of Sciences, Department of Earth Sciences, 4439137145, Shiraz, Iran

    R. Razavi Pash & Kh. Sarkarinejad

  2. Raya Energy Pars Petro (REPPCO) Company, 1461846890, Tehran, Iran

    H. Zarehparvar Ghoochaninejad

  3. National Iranian Oil Company (N.I.O.C), 1994814695, Tehran, Iran

    H. Motamedi

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  1. R. Razavi Pash
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  2. Kh. Sarkarinejad
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  3. H. Zarehparvar Ghoochaninejad
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  4. H. Motamedi
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Correspondence to R. Razavi Pash.

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Razavi Pash, R., Sarkarinejad, K., Zarehparvar Ghoochaninejad, H. et al. Application of 3D Structural Modeling to Analyze the Structural Geometry and Kinematic Evolution: A Case Study from Lab-e-Safid and Qale Nar Subsurface Anticlines in the Northern Dezful Embayment, Iran. Geotecton. 55, 261–272 (2021). https://doi.org/10.1134/S0016852121020072

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  • DOI: https://doi.org/10.1134/S0016852121020072

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