Characterization of Neem Main Low Resistivity Oil Zones Muglad Basin: Republic of Sudan

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

ABSTRACT Muglad basin is the largest rift basin discovered in Sudan, it trends northwest-southeast andconsists of a thick Mesozoic and Tertiary continental syn-rift sequence buried by a Miocene-Recent post-rift sedimentary cover sediments include fluvial alluvial and lacustrine environmentwith probability of coastal marine depositional environment.The study objectives is to characterize low resistivity possible oil zones and correlate to figureout continuity of the same focusing mainly on Abugabra fonnation in Neem field Where LoWResistivity Pay zones characterization are usually quite difficult that it requires researchers totwist their mindset by analyzing the information unconventionally; because many reasons forlow resistivity are possible but not limited to: Invasion of high salinity mud filtrate, high claybound water content, high capillary irreducible water content due to fine sand grain and/orexistence of conductive minerals in pay zones such as: pyrite, siderite, glauconite etc..Data of seven wells, include: Master logs, Final well reports, Conventional Wire Line logging(the first main run) and then interpreted using geological computer applications {Gravitas, Petreland Interactive Petrophysics (IP)}.The petrophysical interpretation includes the complete processes to determine the penneability,porosity and water saturation using flow units method which contains determination of the totalporosity from Wireline logs and then correlated to figure out its continuity in the area.Petrophysical Interpretation results show non clear contrast in the porosity and volume of clay &the water saturation ratio was up to 75 which is acceptable on its compatibility with thecharacteristics of the reservoir.There have been 7 oil and gas zones in common per well, with total thickness of 265m oilcolumn, with effective porosity calculated upper and middle pay-zones in Abugabra are of highervalues l5 to l8 whereas the lower Abugabra porosity value ranging between 9 to 13.Out of the seven different sand layers in Abugabra, the study showed only one continuous layerin all seven wells. The permeability, porosity and saturation of water and oil were calculated forall layers of this formation in addition to the Bentiu formation. This showed variation in theresults, indicating the different sedimentary environments and the nature of the migration of thehydrocarbons from the source layers.

روابط وملفات

التعريف والنوع

رقم الوثيقة

eee9029a-d393-45b9-b25a-a2e43d4f8134

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

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أسماء الملفات

eee9029a-d393-45b9-b25a-a2e43d4f8134_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Mohamed Mukhtar Mohamed Ibrahim","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

English

المصدر والدورية

اسم المصدر

Characterization of Neem Main Low Resistivity Oil Zones Muglad Basin: Republic of Sudan

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإعداد

Mohamed Mukhtar Mohamed Ibrahim

الاقتباسات الببليوغرافية