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Register a new userPetro logical study of Kamshoka formation in Al-Rasafa basin in Syria
دراسة بترولوجية لتشكيلة الكامشوكا في حوض الرصافة في سورية
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Tishreen University ورقة بحثية
Publication date
2015
fields
Geology
and research's language is
العربية
Created by
Shamra Editor
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تعد تشكيلة الكامشوكا الخزان النفطي الثاني ضمن حوض الرصافة إذ إن تشكيلة الكامشوكا غير حاملة للنفط في كل سوريا باستثناء حوض الرصافة حيث يحتوي الكلس و الكلس المدلمت المشقق فيها على نسبة جيدة من الهيدروكربونات ، و من هنا تأتي أهمية هذا البحث. يهدف البحث إلى إجراء تحليل بترولوجي منشئي لصخور تشكيلة الكامشوكا, و تقييم خصائصها الخزنية ، و تحديد صفات و نوعية، و مسامية النطاقات الكلسية ، و الكلسية المدلمتة، و المشققة، و استنتاج الشروط السائدة و البيئات الملائمة للترسيب , و كذلك مراحل التطور الترسيبي لكامل منطقة الدراسة . كما أن تشكيلة الكامشوكا تبدي إنتاجية جيدة في بعض الآبار المحفورة حديثاً و تعطي بوادر أمل على اكتشافات أخرى في مناطق أخرى من سورية .
The Kamshoka formation in Al-Rasafa basin is the second reservoir , because it has a petroleum importance, where these formation have not petrol in Syria exception in Al- Rasafa basin, where the fracture calk rock , and dolomite contain a good amount of hairdo carbonate, so it gave the importance of. Theaim of these research is to do petro logical, and geneses analyses ofKamshoka formation, and to estimate the storage characters , and define characters , and kinds and porosity of fracture calk rock , and dolomite, and to have conclusion about the conditions, and environments of sedimentation, and the stages of sedimentation development for the all area. The Kamshoka formation showed a good productivity in some holes which was drilled brand-new, and it gives a hopes to new discovering in another areas in Syria .
References used
AI-Otri,M. &. Ayed,H. Evaluation of hydrocarbon potentials of thesedimentary basins in Syria. Evaluation of hydrocarbon potential. in Arab sedimentary basins. Ecole Nationale Superieure des Petroles et Moteurs, France, 1999,34-54
Arenas,C., Alonso Zarza,A.M. & Pardo,G. Dedolomitizition and other earlydiagenetic processes in Miocene lacustrine deposits, Ebro Basin (Spain). - Sedimentary Geology 125,1999 ,23-45p
Balog,A., Read,F. & Haas,J. Climate-controlled early dolomite, late Triassiccyclic platform carbonates, Hungary.Journal of sedimentary Research 69, 1999, 267-282p
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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.
Al Rutba Formation , bellowing to the upper Cretaceous, is one the
main formation of the stratigraphical coumn of Euphrate Depression.
It is importance becomes from that it can statute the principle
petroleum reservoir in high member of the depres
sion fields.
Producing oil and the natural gas.
The importance of this group is to be the main reservoir of oil in
various fields of low oil producing natural gas. The present study is
based on subsurface geological data, presented by cores, well logs and
chemical results of the analyses laboratory.
The Upper Crétacé rocks of Krashok formation, Massive formation and Shiranish
formation, are very important for petrol and gas reserve, where it is the importance petrol
reserves in Syria. 25 samples of these two formations werestudied.The Massive
formation
had a good Petrological character as reserves rocks ,where it contain calc rocks, which
have good reserving properties, and it cover the hole area , and it contain a petrol. Where
the Shiranish formation is almost homogenies, and contain calc-marl-clay rocks with
foraminifera, and it divide into three zones, depending on it is petro physical properties, the
upper zone is the most absorb of petrol, by comparison whit others zones, which show
there are many indicators reserve characteristicin these formation.
The basin of Al-Kandeel Valley represents one of the basins of
western northern area's mountains in the Syrian Arab Republic which is
situated just like the axe in the eastern northern and western southern
direction covering approximately 155km2 w
ith a length rating 20km of
complicated geology character (Structurally & Constructively) where you
can find a variety of surface rocks among of which there are metamorphic
and sedimentary rocks that are of severe dislocation as being subject of
high construction potential imposed by the location of the area under the
aspect of thrust of the Arab plate under the Jurassic plate. Its height is
gradually rating clearly from the eastern northern to western southern.
The values of its local terrain rated between 5 m/km2 in its plain area at
the drain point and 375 m/km2 at the mountain eastern northern area. The
climate prevailing in this area is of seasonal rains and classified under the
Mediterranean Climate (Plain-Mountain).
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.
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