List of Articles Ilam Formation

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  1 - Three-dimensional geological modeling in two zones of eastern side of Ahvaz oil field
  Razeyeh . Doosti Irani Maryam Payrovi Mohammad .rahim karimi Mehdi . Doosti Irani
  20.1001.1.22518738.1394.5.9.3.5
  The Ahvaz field is one of the most important oil fields in the Zagros Basin which is located in the Dezful Embayment. The trend of Ahvaz oil field is northwest- southeast parallel to the Zagros mountains. The purpose of this study is the geological 3D simulation (petrop More

  The Ahvaz field is one of the most important oil fields in the Zagros Basin which is located in the Dezful Embayment. The trend of Ahvaz oil field is northwest- southeast parallel to the Zagros mountains. The purpose of this study is the geological 3D simulation (petrophysical) for the zone one and two in the eastern part of the Ahvaz oil field. In this investigation, porosity modeling, water saturation and shale volume by using sequential Gaussian Simulation (SGS) was performed. At first, well logs, cores, well’s coordination, top and thickness of formations of the zone three of Ilam Formation and zone one of Sarvak Formation were collected. These information related to 25 wells in the eastern part of the Ahvaz oil field was used for the 3D modeling of the reservoir by using Petrel software. For the recognition of spatial correlation, variograms based on water saturation and permeability and three dimensional model of the petrophysical parameters and net to gross ratio (NTG) were drawn. Manuscript profile
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  2 - The application of clustering methods (MRGC, AHC, DC, SOM) determining permeability carbonate reservoir rocks Ilam Formation in South West Iran
  Seyed Ali Moallemi farhad khoshbakht sakineh naghdi
  20.1001.1.22518738.1394.5.10.5.9
  The permeability of reservoir parameters is important in the calculation and modeling reservoir plays a role. Measured directly via cores taken from the reservoir layer can be achieved. But due to the limited amount of core taken in a field and laboratory methods as wel More

  The permeability of reservoir parameters is important in the calculation and modeling reservoir plays a role. Measured directly via cores taken from the reservoir layer can be achieved. But due to the limited amount of core taken in a field and laboratory methods as well as high cost; use indirect methods to determine the wells without core permeability is great value. In this study, using clustering methods using petrophysical logs permeability values were measured and analyzed. For this purpose, petrophysical logs Ilam Formation selection of 8 wells and addition of data measured in vitro permeability 3-ring is used to compare the results. Log permeability effective porosity in the well using the parameters A with the core permeability data, estimates and then check the accuracy of estimates, calculations also took place in other fields of study. In the next step, using clustering method, was estimated permeability. Then the results with experimental data and correlation coefficient, the best method is introduced. Manuscript profile
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  3 - Investigating the role of microfacies, depositional conditions and diagenesis on the quality of the reservoir section, Ilam Formation (Santonian-Campanian) in one of the fields in southwestern Iran, Dezful embayment
  Seyedeh Akram  Jooybari Peyman Rezaei Majid Mehdipour
  10.52547/ispg.39683.11.21.16
  20.1001.1.22518738.1400.11.21.3.1
  The Ilam formation is one of the important carbonate oil reservoirs of the Zagros and Dezful embayment basins. In order to identify the microfacies and depositional conditions and diagenesis processes, 100 microscopic thin sections from one well of this reservoir in on More

  The Ilam formation is one of the important carbonate oil reservoirs of the Zagros and Dezful embayment basins. In order to identify the microfacies and depositional conditions and diagenesis processes, 100 microscopic thin sections from one well of this reservoir in one of the Dezful embayment oil fields were evaluated. Porosity and permeability data were used to check reservoir quality. The petrographic study led to the identification of 9 microfacies belonging to the facies belts of lagoon, barier, middle ramp and outer ramp, which were deposited in the homoclinal ramp environment. The most important diagenesis processes identified in Ilam reservoir include cementation, dissolution, fracture, micriteization, stylolitization, and dolomitization. Based on the qualitative classification of the reservoir and Lucia's petrophysical diagrams, the lagoon facies and the middle ramp have an average reservoir status, and the carbonate barier facies and the outer ramp have a weak reservoir status. The reservoir quality of the lagoon and middle ramp facies is related to the existence of interconnected and channel porosities. Due to strong cementation and the presence of unrelated porosity such as mold porosity, the carbonate barier facies has low permeability and has a poor reservoir status. In general, the Ilam Formation in the studied field is in a weak state in terms of reservoir, which can be important in addition to the facies controllers in relation to the lack of expansion of fracture and dolomitization and the excessive expansion of cementation in these facies. Therefore, the Ilam Formation in the studied field has a weak reservoir performance due to diagenetic processes, despite having more shallow sequences than deep ones. Manuscript profile