期刊
JOURNAL OF PETROLEUM GEOLOGY
卷 32, 期 3, 页码 235-259出版社
WILEY
DOI: 10.1111/j.1747-5457.2009.00446.x
关键词
Kopet Dagh Basin; Upper Jurassic; Mozduran Formation; facies analysis; sequence stratigraphy; reservoir; Iran; carbonates
The Mozduran Formation is composed of six depositional sequences. Thickness variations were controlled by differential subsidence. Aggradation on the platform margin and reduced carbonate production in the deep basin together with differential subsidence resulted in the creation of a narrow seaway during the late Oxfordian. Petrographic studies suggest that Mozduran Formation carbonates had a low-Mg calcite mineralogy during the Oxfordian, and an aragonite to high-Mg calcite mineralogy during the Kimmeridgian. Reservoir pay zones are located in highstand systems tracts within the lower and middle Kimmeridgian depositional sequences. The rapid lateral thickness variations of these sequences were controlled by tectonic factors, leading to compartmentalization of the Mozduran Formation reservoir with the possible creation of stratigraphic traps, especially at the Khangiran field.
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