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العنوان
Petroleum system of Kharita Formation (Albian age) in
Beni Suef sedimentary Basin- Western Desert - Egypt
المؤلف
Soliman, Ahmed Said Abdelazim.
هيئة الاعداد
باحث / أحمد سعيد عبدالعظيم سليمان
مشرف / محمد محمود أبوالحسن
مناقش / جاد محمد القاضي
مناقش / ثروت حلمي عبدالحفيظ
الموضوع
petroleum system regional geology
تاريخ النشر
2022
عدد الصفحات
135 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الجيولوجيا
تاريخ الإجازة
17/7/2022
مكان الإجازة
جامعة المنوفية - كلية العلوم - قسم الجيولوجيا
الفهرس
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Abstract

The present work aims to shed light on the hydrocarbons
occurrences in the Beni Suef basin of Egypt through a
comprehensive analysis of its petroleum system elements. A
complete set of different type of data was used and interpreted
in order to conduct basin analysis in the form of basin
delineation was done apart from the analysis of hydrocarbon
geochemistry, basin evolution and the geological history.
The Beni Suef basin has an oval shape trending NW-SE
occupying an area about 1.7 million acres (i.e. 7000 Km2) and
is divided into two parts. The West of Nile (WON) part is an
unstable shelf of the deep basement and thick-skinned faulting.
In comparison, the East of the Nile (EON) segment has rough
basement structures, and this Albian basin is filled variedly
from the fluvial-lacustrine, fluvial to Cenomanian shallow
marine basinal and Turonian deltaic sediments. Afterward, a
major Paleocene-Eocene transgression resulted in an open
marine carbonate section covered by a blanket of Oligocene
marine shale.
The structural interpretation including seismic picking of
basement event across the basin through seismic sections
shows that the basin underwent multiple tectonic regimes. In a
primary phase, the Early Cretaceous rifting took place through
which The Kharita Formation deposited. The Late Cretaceous
phase was dominated by quiet conditions with the deposition of
Abu Roash Formation, which was followed by a structural
rejuvenation in Paleocene-Eocene period during which Khoman,
IV
and Apollonia’s Formations got deposited, and thus, this basin
is considered a syn- and post-rift basin.
Basin modeling and geochemical analysis were applied on
the cut samples in the basin and two types of source rock were
detected; one with clastic-rich terrigenous organic matter (4.8
wt% TOC) yielding a type III Kerogen (The lower Kharita), and
the other one, Abu Roash F carbonate of marine organic matter
(2.46 wt% TOC), yielding a type II Kerogen. Two critical
moments were recorded in the Beni-Suef Basin: one for L. The
Kharita shale at Turonian time and the other for Abu Roash F
carbonate at Paleocene time.
Dozens of dry holes were drilled in The Beni Suef basin
with numerous causes of failure varying from problematic
acquisition of data and abnormal environment of data
acquisition, low quality seismic data, old drilling techniques and
bad hole conditions well logging, improper manual
petrophysical evaluation, absence of source rock and missing
petroleum system theory, missing migration pathway, barren
trap, timing between migration and entrapment, reservoir
faulted out, and non-economic volume of hydrocarbon.