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Register a new userEvaluation of oil potentials in the Derro Oil field (NE SYRIA) Through integrated interpretation of geophysical data
تقدير الإمكانات النفطية في حقل الذرو (شمال شرق سورية) عبر التفسير المتكامل للمعطيات الجيوفيزيائية
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بدأت المسوحات الجيوفيزيائية على الأراضي السورية، منذ العام 1933 و استمرت مـن قبـل الفـرق السوفييتية حتى العام 1952-1962 ، ثم استكملت مـن قبـل الفـرق الوطنيـة الـسورية. و كـان لحقـل الذرو (Derro) نصيب وافر من هذه الدراسات إذ تم مسحه و دراسته باستخدام طرائق جيوفيزيائية متعددة (جاذبية، جيوكهربائية، سيزمية، قياسات بئرية) و نظراً لأن النفط في الحقل المذكور، موجود على أعماق ضحلة جداً مقارنة مع الحقول النفطية المعروفة، سمح بتطبيق الطريقة الجيوكهربائية السطحية، و التـي قدمت نتائج جيدة و كانت ذات تكلفة قليلة جداً. و يبدو من خلال هذا البحث التطابق الجيد بين نتائج الحفر، التي عكست الصورة الجيولوجية للتراكيب المنشودة، و بين نتائج الدراسات الجيوفيزيائية المختلفة، و يتضح ذلك من خلال المقاطع و الأشكال الواردة لاحقاً.
The geophysical surveys on the Syrian oil fields had begun since (1933);it continued by the soviet groups (1952-1962) and were completed by the Syrian national groups. The Derro oil field had a good lot from these studies, because it was surveyed and studied by the all known geophysical methods (gravity, geoelectrics, siesmics, well logging). This was possiple due to the fact that oil bearing formation in the above mentioned field lays in very shallow depths, in comparison with the known oil fields, the geoelectrical method was applied with good results and extreme low cost.
References used
دراسة بتروفيزيائية لحقل الذرو،الشركة السورية للنفط مديرية الاستكشاف 1984 (دراسة غير منشورة).
التقارير النهائية للآبار المحفورة في حقل الذرو، الشركة السورية للنفط، مديرية الاستكشاف (تقارير غير منشورة).
شقير، فارس سلوم، دراسة جيوكهربائية لحقل الذرو، الشركة السورية للنفط 1988 (دراسة غير منشورة).
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Obtaind results, by studing ١٢٥ samples from ١٠ deep wells covering the
different Triassic formations in NE-Syria,show the existence of various
inclusion types. Aqueous, carbon and hydrocarbon-bearing. Aqueous inclusions
vary widely in their general and physico–chemical features, form, melting and
homogenization temperature, and density of the enclosed fluid.
Shiranish formation in Sazaba Oil fields region had been divided by
Petrology study and well Logs measurements to three major members (lower –
middle – upper). Then these members have been divided to lithostratigraphic
units and subunits. This stu
dy showed that the lower member is formed of
clayey - limestone rocks rich in planktonic foraminifera and glaconitic sand.
The middle member consists of organic limestone facies, dolomitic-limestone,
sometimes clayey - limestone rocks with crystals of pyrite and glaconitic sand.
Organic- limestone rocks and detrital limestone are predominant in the upper
member interbeded by dolomitic-limestone and rare clayey – limestone. This
facies contains pelagic and planktonic foraminifera.
The role of diagenes phenomenon is evident on Shiranish’s facies through:
dolomitization according to burial and miksing processes. It is also clear
through chemical compaction, mechanical compaction, cemenation,
micretisation and silisification.
Geomorphological-chemical studying of hole phenomenon which
taked place in KARKIT village (NE of Lattakia) at 11/2/2009,indicate that it was a result of karstic phenomenons in gypsum rocks,this karst is result of underground water drainage inaccordance with fissures direction In study region N025 .
Sedimentary Formations in Al'Daww Depression has been determined on fossils or strata correlation on upcent of fossils.
We found from geological data processing and analysis of litho logical series to Al'Daww Depression that the important rocks th
at generated oil and gas are belong to Silurian and lower Triassic where as Jurassic sediment does not represent any important, nor upper Cretaceous sediments because its adjacent to surface and invaded by surface water.
Reservoir rocks represented by Markada's Kurashina Dolomite, Butma, Rutba and Judea formations.
The good cover rocks represented by the Tanf, Amanous Shale and Kurrachina Anhydrite 13
as well as the upcent of some cover formations deteriorated the important of some reservoir formations at Al'Daww Depression This study reveal that the subsiding velocity rate to the basin produced the thickness' and made this formations more prospective in general.
The research aims to contribute to the knowledge of scholars of Palestine in the science of interpretation, particularly one of the fundamental reform of the science of interpretation of this flag is the author of Muhammad Izzat Darwaza modern interp
retation, The first topic devoted to the for definition Darwaza and of his time for the detection of the most prominent reasons that have contributed to the formation of ideas and opinions, and made the topic the second platform for the reform of the modern interpretation of interpretation for the detection of the position of the previous interpretations of Darwazeh and diagnosis of the gaps where there were repeated, and a plan for the best understanding and interpretation of the Koran in order to overcome these gaps, and then made the topic of the third The concept of destination as the basis for the reform of destination and the focus of reform of science in the interpretation of the modern interpretation.
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