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Register a new userThe structural modeling of Korushina Dolomite formation in Mamlhat Alkom field
البنية التركيبية لتشكيلة الكوروشينا دولوميت في حقل مملحة الكوم
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أعيد في هذا البحث تفسير معطيات المسح الاهتزازي المنجزة سابقاً و المتوافرة لحقل مملحة الكـوم، و بنتيجتها أمكن تحديد بعض العواكس المأمولة نفطياً. تمحورت الدراسة على عاكس الكوراشينا دولوميت لخصائصه التي تشير إلى مأمولية كبيرة و أنشئت له الخارطة الزمنية، و حددت البنية الجيولوجيـة للتأكـد من المأمولية النفطية لهذه التشكيلة. استناداً إلى هذه الدراسة و إلى الخرائط المنجزة مـن قبلنـا، نؤكـد مأمولية تشكيلة الكوراشينا دولوميت، حيث تتوافر سماكة ملائمة لرسوبيات الصخر الخـازن، و يتـوافر الغطاء، و كذلك الصخر المولد. على أن يصار إلى تدقيق هذه المعطيات بمسوح ثلاثية الأبعاد فوق البنـى المحددة، تتوج بعمليات حفر لاحقة.
The available seismic data of Mamlaht Al-Kom field were reinterpreted in order to define some petroleum potential reflections. The study focused on Korushina Dolomite (K.D) reflector because of its properties that indicate α hydrocarbon potential. Therefore the time map of this formation was canstructed, structure was defined and the hydrocarbon potential is discussed. According to the obtained data, we ensure the presence hydrocarbon potential of the K. D formation, because of its suitable thickness, availability of cover, and the source rocks. These results should be verified by a 3D surveys and then drilling operations.
References used
Ala, M. A., Moss, B. J. (1979). Comparative petroleum geology of southeast Turkey and northeast Syria, Journal of Petroleum Geology, 1, 3-27
Al Abdalla, A. (2008). Evolution tectonique de la plate-forme Arabe Syrie depuis le Mesozoque. These Doctorate universite Pierre et Marie curie, Paris-France. 302P
Al-Saad, D., Sawaf, T., Gebran, A., Barazangi, M., Best, J. A., and Chaimov, T. A. (1992). Crustal structure of central Syria: The intracontinental Palmyride Mountain belt. Tectonophysics, 207: 345-358
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All the well logging reinterpretation by using the new softwares, cores
analysis and results of seismic 2D and 3D surveys allowed to identify the
reservoir characteristics of Kurachina Dolomite Formation of middle Triassic,
for two zones (C2, D1)
in Jihar field and its affect on hydrocarbon potential in
this area.
It's found that C2 reservoir consist mostly of dolomite and small amount of
shale and anhydrite, fractured and all the fractures are full of organic
materials, calcite, anhydrite, silica and little amount of stilolite, while there is
succession of limestone and fossil remains, in some places there is shally
dolomite. Whereas D1 reservoir is mostly crystalline limestone and the
fractures filled with dolomite.
This research aims to study the sedimentary and palaeogeographic
evolution of the Kurachina Dolomite Formation along Palmyrian belt zone.
Studying this formation in its Northern and Southern parts has shown that it
consists of two lithostratigraph
ic members, where each of them includes a
series of lithological units. The petrological study of the components of these
units shows that they are composed of four distinguished facies: Dolomitic
limestones, clayey limestones, clays and anhydrites, pure or mixed, and
deposited in repeated harmonic layers, gathered mostly in neutral sedimentary
sequences. Dolomitic limestones are the most common and important facies,
they are composed of micrite muds which have been subjected, in different
degrees to synsedimentary or late dolomitisation processes through pumping or
burial mechanisms. Dolomitisation intensity decreases downward the formation
and increases laterally from the south to the north of the Palmyrian chain.
Karatchouk field is located in a very complicated tectonic area, affecting on the petroleum layers, and causing migration from and to deferent formations. That’s why a detailed study is executed, to reevaluate the petroleum potential of Butma formati
on. Butma formation is Norian age of upper Triassic, doesn’t outcrop on surface, but only recognized by deep wells. During geologic time, this formation was affected by important (regional and local) tectonic accidents causing it’s fraction. Therefore, these accidents produce in the Butma formation a secondary porosity and permeability, motivating the petroleum migration from mother rocks to it. This study indicates the Butma formation potential, and suggests recommendations to guide future petroleum exploration.
In this paper, we will shed light on the applied studies results in
special of deep tectonic situation of the Kurachine dolomite
formation through the seismic sections explained by us, and
establish time and depth maps for this formation, and prop
osing a
well that is supposed to be hydrocarbon potential in the light of
modern data.
In order to build 3D structural model for Mamlaht Al-Kom
structure in the North Palmyride Chain, the potential reflections
were defined like Korushina Anhydrite (K.A) the cover, and
Korushina Dolomite (K.D) the reservoir, therefore the time,
velo
city, and depth maps for Korushina dolomite reflection were
constructed. Finally the 3D Structural Model for formation (K.D)
was defined. So that the hydrocarbon potential is discussed.
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