Seismic geomorphology and stratigraphic trap analyses of the Lower Cretaceous siliciclastic reservoir in the Kopeh Dagh-Amu Darya Basin
投稿时间:2018-02-09  
英文关键词:3D seismic, Fluvial, Stratigraphic trap, Cretaceous, Kopeh Dagh, Amu Darya
基金项目:The authors thank the NIOC Exploration Directorate for supporting the project, data preparation and permission to publish. We also thank to the Ferdowsi University of Mashhad for supporting this project (Research Project Code: 3/27868).
作者单位
Gholamreza Hosseinyar Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran 
Reza Moussavi-Harami Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran 
Iraj Abdollahie Fard Geophysics Department, NIOC Exploration Directorate, Tehran 19395-6669, Iran 
Asadollah Mahboubi Department of Geology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran 
Rooholah Noemani Rad Geophysics Department, NIOC Exploration Directorate, Tehran 19395-6669, Iran 
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英文摘要:
      Lower Cretaceous Shurijeh–Shatlyk Formations host some of the main reservoirs in the Kopeh Dagh-Amu Darya Basin. Exploration in this area so far has focused on the development of structural traps, but recognition of stratigraphic traps in this area is of increasing importance. Integration of 3D seismic data with borehole data from thirteen wells and five outcrop sections was used to identify potential reservoir intervals and survey the hydrocarbon trap types in the East Kopeh Dagh Foldbelt (NE Iran). Analyses of horizontal slices indicated that the lower Shurijeh was deposited in a braided fluvial system. Generally, three types of channel were identified in the lower Shurijeh Formation: type 1, which is low-sinuosity channels interpreted to be filled with non-reservoir fine-grained facies; type 2, which is a moderately sinuous sand-filled channel with good prospectively; and type 3, which is narrow, high sinuosity channel filled with fine-grained sediments. Results indicate that upper Shurijeh–Shatlyk Formations were deposited in fluvial to delta and shallow marine environments. The identified delta forms the second reservoir zone in the Khangiran Field. Study of the stratigraphic aspects of the Shurijeh succession indicates that both lower and upper Shurijeh reservoirs are stratigraphic reservoir traps that improved during folding.
Gholamreza Hosseinyar,Reza Moussavi-Harami,Iraj Abdollahie Fard,Asadollah Mahboubi,Rooholah Noemani Rad,2019.Seismic geomorphology and stratigraphic trap analyses of the Lower Cretaceous siliciclastic reservoir in the Kopeh Dagh-Amu Darya Basin.Petroleum Science,16(4):776~793.
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