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Engineering Management Department
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Publications
Some of publications in Engineering Management Department
Epic Contractors Selection Using AHP (Analytical Hierarchy Process)
This research aims to build a model application of decision-making tools to solve problems associated with the contractor selection for Engineering, procurement and Construction (EPC) projects in the Oil and Gas sector. Taking into consideration the complexity of Oil & Gas projects in terms of technical, safety and environmental aspects, it is critical to choose a competent contractor to build quality plants as per scope specifications and within the specified time and budget. This study also covers problems associated with contractor short listing without proper contractors screening and pre qualifications activities, this might result in low cost bidding from non-competent bidders. Because current local tendering practices favors lowest price regardless of quality, this resulted in enormous problems when executing Oil & Gas projects such as projects failures and delays coupled with the absence of interest in our local market from reputed international EPC contractors. Because contractors screening and bid slate selection is a complex exercise that requires large amount of contractors data gathering and the associated analysis to achieve the required bidders short listing. Therefore, a model for contractors screening and selection was developed in this study where each contractor data base are gathered and analyzed. Such data includes discipline, previous activities, financial exposure, geographical locations, works backlogs and engineering capabilities. The Model called Analytical Hierarchy Process (AHP) was designed to improve contractor selection process based on established criteria. In this regard, 48 criteria and categories (mainly contractor capabilities financial, management, technical, resources etc.) were identified. They were mainly drawn from literature reviews, the author previous experience, lessons learned from past projects and NOC’s & IOC’s experience. The 48 categories, and based on subsequent meetings and discussions with several respected local Oil & Gas projects expertise, were divided based on relative importance to contractor selection process into two parts, Primary (7 categories) and Secondary (remaining categories). AHP is a compensatory decision methodology because alternatives that are deficient with respect to one or more objectives can compensate by their performance with respect to other objectives. AHP allows for the application of data, experience insight, and intuition in a logical and thorough way and enabling decision-makers to structure complexity and exercise judgment and allows them to incorporate both Goal Objectives (criteria), Sub-Objectives Alternatives objective and subjective considerations in the decision process. AHP enables decision-makers to derive ratio scale priorities or weights as opposed to arbitrarily assigning them. In so doing, in this research, (MS Excel) was used in addition to (Expert Choice), one of the prepackaged software that was utilized to study the sensitivity of the results and a case study of selecting a contractor. The AHP model is flexible and user friendly and can be applied at different stages of contractor selection process. In addition it can be utilized as a decision-making for a working group by analyzing the inputs of the working group members and highlighting deviations, biases, results and advising corrections. Utilizing AHP model encourages and promotes contracting good practice of national companies and institutions and enhances the decision-making capabilities and provides for a fair guidance while contracting for major Oil & Gas projects in Libya.
حسن محمد الشاوش (2009)
Publisher's website
حسن محمد الشاوش (2009)
Reengineering the Organizing and Structuring In Governmental Companies
أتسمت السنوات الماضية بتطورات وتحديات عديدة كان لها آثار مباشرة على القطاع العام، ومن أهم هذه التحديات اختلاف دور الدولة في المجتمع ، والتغيرات البيئية ، والتخصيص ، وتطور تكنولوجيا المعلومات والاتصالات، والعولمة. ومن أجل أن يتمكن القطاع العام من مواجهة هذه التغيرات الاقتصادية والتكنولوجية والبيئية ينبغي الاستفادة من التطورات الحديثة في الإدارة في كيفية التعامل مع مثل هذه الشئون. ويعتبر أسلوب إعادة الهندسة من أحد أبرز الظواهر الإدارية الحديثة من بداية التسعينات. يشكل توطيد الأساليب الفعالة للنجاح أحد المجالات الأساسية التي تستلزم البحث والدراسة في مجال إعادة الهندسة.يتلخص مجال البحث في تدني مستوي أداء الشركة محل الدراسة نتيجة لانخفاض كفاءة عملياتها الحالية، لاستبعاد الإدارة العليا لمدى أهمية إعادة الهندسة في تطوير وتحسين الأداء. لذا فان الدراسة تهدف إلى إمكانية التعرف على الأسباب التي تحول دون تطبيق مفهوم إعادة الهندسة كأداة لرفع أداء الشركة العامة للكهرباء فى ليبيا. ولكي نتمكن من دراسة هذه المشكلة واقتراح الحلول اعتمد الباحث الأسلوب الكمي للبحث من خلال تصميم صحيفة استبيان وتوزيعها على عينة عشوائية بنسبة 50% من مجتمع الدراسة،والمتمثلة في ثلاثة إدارات تابعة للشركة العامة للكهرباء،وهي إدارة الموارد البشرية، وإدارة شؤون العاملين،وإدارة المعلوماتية حيث تكونت هذه العينة من 98 مفردة تم اختيارها عشوائيا لاختبار صحة الفرضيتين الآتيتين :استبعاد الإدارة العليا للشركة لمفهوم إعادة الهندسة يؤثر تأثيرا كبيرا على أداء الشركة محل الدراسة.قلة الكفاءات الفنية لتطبيق أسلوب إعادة الهندسة بالشركة محل الدراسة يؤدي إلى القصور في تطبيق هذا الأسلوب وبالتالي تدني أداء الشركة وعدم تطورها.تم إجراء التحليلات الإحصائية ، للبيانات التي تم تجميعها من صحيفة الاستبيان، واختبار الفرضيتين باستخدام البرنامج الإحصائي الشهير (SPSS) و باستخدام اختبار T test ، وتوصلت الدراسة إلى نتائج من أهمها أن استبعاد الإدارة العليا لأهمية تطبيق أسلوب إعادة الهندسة يؤثر على أداء الشركة ، كما أن العاملين بالشركة ينقصهم الوعي والإدراك بمتطلبات التحسين، وكذلك الرغبة والقدرة لإنجاز الأهداف المرجوة من عمليات التغيير لتحسين وتطوير الأداء، وخلصت الدراسة إلى تقديم بعض التوصيات لعل من أهمها:- لفت نظر القائمين على الإدارة العليا بالشركة محل الدراسة إلى أهمية استخدام نموذج إعادة الهندسة لتحسين مستوى أداء الأعمال بالشركة.دعم الشركة بالعناصر المؤهلة والقادرة على تبني أسلوب إعادة الهندسة لتطوير وتحسين أداء عمليات الشركة لتحقيق مستهدفاتها في زيادة الأرباح من خلال تقديم أفضل المنتجات والخدمات للعملاء عبر احدث وسائل تكنولوجيا المعلومات. Abstract The past years were characterized with many developments and challenges which had a direct impact on the public sector. Among the most important of these challenges, the divergence of the State’s role in the society, environmental changes, privatization, development of information technology and communication and globalization. In order for the public sector to face these economic changes, technological and environmental, advantage should be taken of recent developments in management to deal with such changes and developments , as re-engineering is considered one of the most prominent phenomena of modern management in the early nineties. The consolidation of the critical factors for success is one of the key areas for research and study in the field of re-engineering. The main problem of the research is briefed in the low level of the company's performance under study as a result of the low efficiency of its existing operations. This may be a result of exclusion of the senior management to the importance of re-engineering in the development and upgrading of performance. Therefore, the study aims at the possibility to identify reasons that prevent the application of re-engineering concept as a tool to upgrade the performance of the General Electricity Company of Libya (GECOL). In order to study this problem and propose solutions, the researcher adopted the quantitative method to search through the design of a questionnaire distributed to a random sample of 50% of the study community representing three departments belonging to the General Electricity Company; Human Resources Department, Personnel Department and information Department. This sample consists of 98 items, randomly selected to test the validity of the following two hypotheses The exclusion of the company senior management to re-engineering concept to affect the performance of the company subject matter of present study 2. Lack of technical competencies to apply the method of re-engineering in the company subject matter of study leads to deficiencies in the application of this method and hence the low performance of the company. The statistical analyzes of the data that was assembled through the questionnaire and the T test of the above two hypotheses using the well known statistical software (SPSS), were conducted. The study showed the exclusion of company senior management of the importance of applying re-engineering which affects the performance of the company. It also showed that the employees of the company lacked awareness and understanding of the requirements of the improvements as well as the desire and ability to achieve the desired goals of the processes of change and development to improve company Performance Company. This study concluded many recommendations, the most notably are: 1. raising awareness among those in charge of the senior management at the company under study to the importance of application of re- engineering model to improve the business performance of the company. 2. Providing the company by qualified personnel that are able to adopt re-engineering in the company to develop and upgrade the performance of the company's operations so as to achieve its objectives in increasing its profits though providing the best products and services for the customers though up-to-date information technology means.
رجب صالح سليمان (2013)
Publisher's website
رجب صالح سليمان (2013)
The Use of Simulation in the Analysis of Oil Wells Productivity
احد اهداف مهندسى النفط هو المحافظه على الانتاج خلال عمر البئر . هدا الهدف ممكن تحقيقه من خلال تطبيق مختلف طرق الرفع الصناعى والتى تضيف طاقه للمكن لتحسين او زياد الانتاج او للوصول الى الحد الادنى من كميه الانتاج والتى تغطى التكاليف اى بمعنى كميه الانتاج الاقتصاديه . اكثر الطرق استخداماً هى طريقه المضخه الكهربيه الغاطسه و طريقه الرفع بالغاز.طريقتى الرفع بالغاز والمضخه الكهربيه الغاطسه يمكن استخدامهم فى الابار التى معدل انتاجها ضعيف والتى لا تعطى ارباح اقتصاديه للشركه. كلتا الطريقتين يعطيان معدل انتاج عالى وبالتالى يؤديان الى زياده الارباح لكن الاختيار بينهم صعب والمدير او المهندس المسئول سيأخد وقت طويل لإتخاد القرار المناسب نتيجه لحاجته لعمل دراسه كامله لإختيار الطريقه المناسبه. الان يمكن استخدام المحاكاه للمساعده فى اتخاد القرار واختيار الطريقه الانسب والتى تعطى اعلى معدل انتاج اى اعلى انتاجيه واكثر ربح. ايضا استخدام المحاكاه سوف يقلل من الوقت اللازم لإنهاء الدراسه.فى هده الدراسه تم تصميم برنامج محاكاه لكلتا الطريقتين المضخه الكهربيه الغاطسه و الرفع بالغاز لإيجاد الطريقه الانسب وذلك اعتماداً على عمر المعدات فى البئر، التكاليف، اعلى معدل انتاج واعلى انتاجيه ، تم جمع البيانات الاساسيه للبرنامج من شركه ريدا للمضخات الغاطسه . البرنامج يمكن استخدامه ايضاً لتقييم الطريقه الموجوده سؤاء إكانت المضخه الغاطسه او الرفع بالغاز.شكره اينى للنفط زودت المبرمج بالبيانات اللازمه لتطبيق الدراسه وتقييم البرنامج. تحليل النتائج بين انه بإستخدام المحاكاه العديد من المشاكل يمكن حلها بطريقه سهله وسريعه ، وإستخدام المحاكاه يعطى المستخدم مرونه لإيجاد الحل المناسب من خلال وضع بدائل مختلفه والحصول على نتائج مختلفه والتى تعطى المستخدم القدره على تقييم النتاج واتخاد القرار الصحيح . Abstract One of the objectives of Petroleum Engineers is to maintain efficient production throughout the lifetime of the wells. This may be achieved by applying different Artificial Lift Methods adding extra energy to assist reservoir energy in order to obtain better production rates.[15]. The most common artificial lift methods used are Electrical Submersible Pump and Gas Lift.Gas Lift and Electrical Submersible Pump can be used in wells that produce low flow rates and don’t give an optimal profit to the company. Both methods will give high flow rate and maximize the profit but the choice is difficult and the manager or engineer will take long time to make a study and find the suitable one. Simulation methods can be used now in helping the decision makers to choose the suitable method that gives high production rate that means high productivity and more profit. Also using simulation will reduce the time needed to make a study.In this study simulation software program was made for Electrical submersible pump and Gas lift to find the suitable one dependent on equipment runs life, cost, profit, maximum production rate and productivity, the data collected for the program form REDA oil company. The program could used to evaluate the existing Electrical submersible pump or Gas lift in the well.Eni oil company provided the designer with data for a well to apply as case study and evaluate the program The analysis of the study shows that by the simulation lots of problems can be solved in an easy and faster way and using simulation give the decision makers or the users a flexible way to create a solution by putting many assumption and having many solutions that give him the ability to evaluate the results and make the right decision.
سمية أبوبكر أبوسنينة (2010)
Publisher's website
سمية أبوبكر أبوسنينة (2010)