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العنوان
Tectonostratigraphy and Reservoir characteristics of some Fields in Sirt Basin, Central libya /
المؤلف
Abu Halimah, Abraheem Saeid Omar.
هيئة الاعداد
باحث / ابراهيم سعيد عمر
مشرف / حسين توفيق الدسوقى
مناقش / محمد فؤاد العراقى
مناقش / ماهر عبد اللطيف العماوى
تاريخ النشر
2020.
عدد الصفحات
143p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الجيولوجيا
تاريخ الإجازة
1/1/2020
مكان الإجازة
جامعة بنها - كلية العلوم - الجيولوجيا
الفهرس
Only 14 pages are availabe for public view

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Abstract

Abstract
The area of study Assumoud and Sahl fields are situated in the southeastern Sirte Basin within Wadayat trough. Using seismic imaging and interpretation of the basin structures, as well as the interpretation and analysis of other geological and geophysical data and modeling over the areas of interest, the study aims to delineate the major and minor subsurface structures that dominated the area. A structure maps were created for top Mulallah, top Etel and top Sheghega and construct a structural model for the area of study then many cross-sections were taken to the area model. The analysis of these maps show that the area uplifted in the late Cretaceous.
The study aims to:
1- Delineate the major and minor subsurface structures that dominated the area, especially the deep objectives, and try to understand their evolution through geological time, and see how they contributed in the petroleum system.
1. study is a detailed examination of the tectono-stratigraphy & Reservoir characterization of assumoud & sahl fields in the southeastern part of sirte basin, central Libya in order to investigate the hydrocarbon productivity potential of those fields.
A structure maps were created for top Mulallah, top Etel and top Sheghega and construct a structure model for the area of study then many cross section were taken to the area model. The analysis of these maps show that the area uplifted in late Cretaceous due to NE-SW compressional force forming anticline which appear in E-W cross section, then this anticline faulted at the limps which form the height in the middle of the section. Also it appear from the depth maps that the area has general steep slope to the south as in all depth maps. from the last, we can recognize that the best places for new prospects in the middle of the area that though to be the trap for the hydrocarbon that was migrated from south.
In this study well-logs have been processed by the proposed technique of named (O3-6) well. The hydrocarbon evaluation of the studied field was achieved throughout the intensive analyses and interpretation of the geological and geophysical data, particularly the well logging measurement.
When applying the cutoffs to the resulted values of different zones obtain that the Sheghega Formation is very high quality reservoir with permeability 1445 millidarcy and hydrocarbon saturation 49 %in medium porosity 21 % which is consider good medium.
from the last, we can recognize that the best places for new prospects in the middle of the area that though to be the trap for the hydrocarbon that was migrated from south. The auther recommend with more studies and availability of the to construct a completely sedimentary and structural model for investigating of the subsurface layers.