Department of Geological Engineering

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About Department of Geological Engineering

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Who works at the Department of Geological Engineering

Department of Geological Engineering has more than 15 academic staff members

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Mr. ali Abdallah ali elhammi

Publications

Some of publications in Department of Geological Engineering

Analysis and Interpretation of the petrophysical properties of Mamuniyat reservoir in El-Feel Oil Field, western part of Murzuk Basin, NC-174, Libya

Abstract The sandstone of Upper Ordovician Mamuminyat Formation represents part of stratigraphic column in Murzuq Basin, south west Libya. It is the primary reservoir target in the basin, soursed and caped by Lower Silurian Tanezzuft Shale (Sola, 2000). The Mammuniyat reservoir in Murzuq Basin is characterized by lateral and vertical variation of petrophysical properties duo to lateral change of depositional environment and the digenetic effect on the formation load various facies deposition quality. The Concession NC174 is discovered in 1997 by Lasmo Grand Maghreb Limited then On the 26th October 2003 the development drilling campaign started by MOG till thepresent time. The El feel field is the major discovery in NC174. Porosity range is 16-18% and permeability some hundreds millidarcys. The Net thickness/Gross thickness ratio varies from 20% to 95% with an average value of 70%. The sedimentary fill in the Murzuq basin is mainly Paleozoic to Mesozoic in age and reaches a thickness of about 4000 meters in the depocenter. The sedimentary sequence is punctuated by several regional unconformities corresponding to successive tectonic activity phases. In the area of NC174, the tectonic phases developed anticlines and fault bounded anticlines generally super-imposed and re-actived through time. The resulting structural style is characterized mainly by poli-history sub-vertical reverse faults with different directions (N-S, NNW-SSE and NNE-SSW), these faults bound most of the prospects apparently superimposed on subtle anticlines oriented SSWNNE along which the culminations are aligne.
خالد مسعود الزوام (2014)
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Classification, Enhancement And Stability Of Backfill And Embankment Case Study: Tajoura – Misurata

Abstract Normally the study and investigated of earth material from the view of their uses as embankment and backfill material has a great importance in earth woks. This research concerns the assessment of earth masses and their properties which related embankment and backfill suitability as well as providing a mixing methods to upgrade the unsuitable within the accepted standards. The objectives of this research could be briefed by the investigation of earth masses along the study area which is governed by the distribution of superficial deposits comprehensive laboratory testing of soil samples molding Andes properties classification testing proctor and California bearing ratio recognition of suit able and non suit able backfill soil enhancement of unsuitable soil by mixing with other suitable soil such as quarry dust provided by nearby quarry correlation analysis and economic feasibility the study area is located in east of Tripoli from Tajoura to Misurata . This study manly concluded that as long as the poorly graded soil (A3) is difficult to be compacted according to the engineering properties of such soil are enhanced certainly by mixing with good sailable materials such as quarry dust. This research also conduced that the compaction properties will be enhanced by mixing where the optimum moister content is needed at the increase of maximum dry density. This research provides procedure of mixing design and recommendations for the mixing to achieve better results.
عبد السلام محمد بحرون (2011)
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دراسة الأهمية الاقتصادية لبعض الأحجار الرملية بشمال غرب ليبيا

أجريت الدراسة على رمال السليكا الواقعة بمنطقة الدراسة جنوب شرق نالوت لغرض تقيمها اقتصاديا لصناعة الزجاج . حيث كان اجمالى العينات المأخوذة من منطقة الدراسة 30 عينة أخذت من خمس مناطق شملتها الدراسة الحقلية بالموقع المذكور. وشملت الدراسة المعملية الوصف الصخري ، التحليل المنخلي للعينات المدروسة ،ودراسة التركيب المعدني لشرائح صخرية بواسطة المجهر المستقطب لغرض الدراسة البتروجرافية ولعينات رملية بواسطة حيود الأشعة السنية (XRD). هذا وشملت الدراسة التحاليل الكيميائية للعينات الرملية المدروسة لمعرفة تراكيز العناصر الاساسيةبواسطة جهاز بالبث الطيفي البلازمي ICP) ) كما تم فصل المعادن الثقيلة. وبينت نتائج التحليل المنخلي بأن الشكل الحبيبي لمعظم العينات مستدير إلى شبه مستدير وتصنيفها جيد. وأثبتت نتائج التحليل المعدني بجهاز حيود الأشعة السنية تواجد معدن الكوارتز مع كمية قليلة من اكاسيد الحديد ،وكان متوسط المعادن الثقيلة في العينات 0.3% .هذا و أظهرت دراسة الشرائح الصخرية، عدد من المعادن الثقيلة من ضمنها التورمالين والزركون وبينت نتائج البث الطيفي البلازمي نسبة مجموعة اكاسيد منها : اكاسيد الصوديوم (Na2O3) وأكسيد الالومنيوم((Al2O3 واكاسيد الحديد((Fe2O3 . وبيت التحاليل الكيميائية إن نسبة السليكا عالية في العينات تصل ( 97.70 % ) ونسبة الرطوبة منخفضةلاتتجاوز 2%، وبالتالي تعطى هذه النتائج قيمة اقتصادية جيدة لهذه الرمال . وخلصت كل هذه النتائج على إمكانية قيام صناعات على هذه الرمال مثل صناعة الزجاج الزجاج وصناعات مواد البناء المختلفة والطلاء وورق الصنفرة.
سمية مسعود على عبدو (2009)
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