مشروع البحث: Reservoir Quality of the Dahra Formation and Hydrocarbon Accumulation, Dahra Oilfield, North Western Sirte Basin, Libya
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المساهمين
الممولين
رقم التعريف
24209
الباحث
خالد محمد عبدالسلام
الوصف
The Late Palaeocene Al Dahra Formation, which is deposited on the Al Dahra-Al Hufra
platform developed over horst generated during rifting in the Mid-Cretaceous, is the main
hydrocarbon-producing unit on the Dahra-Jofra field, which is located in the western Sirte Basin.
In the study area a descriptive lithofacies scheme for the Dahra Formation in the cored well
F98-32 is able to be constructed by integrating the sedimentological core description and
petrographic observations with the use of wireline log signatures. The facies stacking patterns of well
F98-32 are examined in terms of possible sequence stratigraphic context, and the wells are correlated
through the integration of this analysis with the wireline logs data. These lithofacies form identifiable
and repeated associations, which indicate depositional cycles that generally become shallower
upward sequences with possible to identify key sequence-stratigraphic surfaces such as flooding
surfaces and exposed surfaces that characterized by evidence of vadose diagenesis. The depositional
model developed from the investigation of the area suggests the presence of a shallow-water
carbonate ramp ranging from restricted to open inner ramp setting, with localized patch reefs
transitioning into mid- to outer ramp setting.
الكلمات الدالة
Reservoir Quality of the Dahra Formation and Hydrocarbon Accumulation, Dahra Oilfield, North Western Sirte Basin, Libya