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    Identification and qualification of health, safety and environmental risks on construction of projects in Iranian petroleum industry

    , Article Proceedings, Annual Conference - Canadian Society for Civil Engineering Volume 4, 2012, Pages 3301-3310 ; Volume 4 , 2012 , Pages 3301-3310 ; 9781622768004 (ISBN) Mohammadi, P ; Heshmati, E ; Sharif, H ; Ahmadian Fard Fini, A. R ; Sharif University of Technology
    Iran is engaged in a long-term program to improve and strengthen its position among producers of petroleum in the world. In this regard, many projects are planned and executed in different fields related to oil and gas industry. Prior to investment in new projects, it is essential to understand and manage major corporate risks and their related consequences. Due to nature of petroleum industry, Health, Safety and Environmental (HSE) issues are associated with such projects and have always been matters of concern. This paper directs readers towards the integrated HSE approach from concept to affect project construction phase. The process of oil production includes exploration, extraction and... 

    Causes of common and frequent claims in oil, gas and petrochemical projects of Iran

    , Article KSCE Journal of Civil Engineering ; Volume 18, Issue 5 , June , 2014 , Pages 1270-1278 ; ISSN: 12267988 Hasheminasab, S. H ; Mortaheb, M. M ; Ahmadian, F. F. A ; Sharif University of Technology
    Over recent years, frequent involvements in claims have been inevitable due to unpredictable economic changes and increasing complexities in construction industry. Therefore, even appropriately made contracts are not exempted from claims. On the other hand, construction contract claims are time-consuming, expense-involving and most likely leading to unsatisfactory results. However, there may be some positive outcomes, such as time extension or compensation of damages. To launch investigations, a list of important and frequent claims in oil and gas industry projects of Iran was extracted after a succinct documents review. Further, the most important claim causes were identified through... 

    Feasibility of using laser bit beside of common bits to drilling slim holes

    , Article Society of Petroleum Engineers - International Petroleum Technology Conference 2013, IPTC 2013: Challenging Technology and Economic Limits to Meet the Global Energy Demand ; Volume 1 , 2013 , Pages 422-433 ; 9781627481762 (ISBN) Bazargan, M ; Jalalyfar, H ; Koohian, A ; Habibpour, M ; Sharif University of Technology
    The capability level of rotary as well as first generation drilling operation could not be matched for deeply drilling programs. To reach that deep, the increasing in drill string length could also cause an additional constraint on hydraulic performance. The operation of slim hole drilling has significant potential to reduce well costs. This cost might be savings are especially important with increased demand for reduced capital finance under current economic conditions in the Iranian oil and gas industry. This savings achievement could be caused by use of smaller drilling rigs, work over rigs, reduced casing size, reducing requirement for drilling consumables and other costs associated with... 

    Numerical Simulation and Investigation of Different Parameters on Performance of Swellable Packers

    , M.Sc. Thesis Sharif University of Technology Zaer, Mohsen (Author) ; Arghavani Hadi, Jamal (Supervisor) ; Asempoor, Ahmad (Co-Supervisor)
    When swellable elastomers expose to a suitable fluid, they swell by adsorption, which the result composition is called the gel. Gels have a variety of application, including drug delivery, sensors, actuators, micro-valves, and swellable packers. Swellable packers are a widely used tool in the oil and gas industry that are used for various operations such as supporting cement operations, water shut-off and well compartmentization, so appropriate knowledge about their behavior and the impact of various factors on its performance can lead to the optimal and safe designing of these devices. In this thesis, a suitable and validated potential energy function has been selected to evaluate the... 

    Some investigations on the ability of an indigenous thiobacillus ferrooxidans, used in Bio-SR process

    , Article CHISA 2006 - 17th International Congress of Chemical and Process Engineering, Prague, 27 August 2006 through 31 August 2006 ; 2006 ; 8086059456 (ISBN); 9788086059457 (ISBN) SYaghmaei ; Salimi, F ; Mousavi, S. M ; Sharif University of Technology
    The physicochemical techniques presently available for treatment of H2S containing gases are many and varied. In near future small gas reservoirs with high concentration of H2S will be explored, therefore the gas processing industry is seeking novel, cost effective, environmentally compatible and operator friendly technologies applicable to the small volume producrs. The continuing search for more economical methods has led to investigations into microbiological processes. The biological process which has been studied in this research is Bio-SR process. Bio-SR process uses thiobacillus ferroxidans bacteria to regenerate gas treating solution (ferrous sulfate). In this way, the effects of... 

    Key Success Factors in upstream section of Iran oil and gas industry

    , M.Sc. Thesis Sharif University of Technology Kotobzadeh, Rouzbeh (Author) ; Arasti, Mohammad Reza (Supervisor) ; Sheykhzadeh, Mehdi (Supervisor)
    The most important concerns of companies who are active in upstream section of oil and gas industry is to find the ways to get to safe side in the world wide competitive market. With determination of Success factors in each industry those ways become clear for the companies .The objective of the study is to explore key success factors in upstream section of Iran oil and gas industry and also to compare the result with similar international research. It also investigates how enterprises define and measure success as well as how they determine their strategies. With the aid of a questionnaire which has been design in similar research, we got related information from experts who are involved in... 

    Supply Chain Risk Study for Downstream Projects of Oil and Gas Industry in Iran

    , M.Sc. Thesis Sharif University of Technology Hosseini, Alireza (Author) ; Aslani, Shirin (Supervisor)
    There are always some unpredictable phenomena happen in the process of constructing of a downstream petrochemichal plant resulting to delays that increase the cost compared with the benefits or sometimes cancelation of the projects that abodones the investors from the returns at all. On of the reasons that these issues can dwibdles the benefits is that most of Iranian’s downstream companies do not prepare suitable and sufficient capabilitities to cope with such a risks. In this thesis, at first, influensive risks on the downstream oil and gas projects in Iran have been studied based on a comprehensive litreture review, secondly using a questionnaire, these extracted risks have been assessed... 

    Providing a Method for Developing Oil & Gas Project’s Time Schedule Automatically, based on Artificial Intelligence and Soft Computing

    , M.Sc. Thesis Sharif University of Technology Akbari, Zohreh (Author) ; Habibi, Moslem (Supervisor)
    The project schedule is used as a key tool for managers to measure the progress of the project and prevent the deviation of the project from achieving its goals.Project scheduling started with manual methods. After a while, due to the increase in the size of projects and their complexity, the efficiency of traditional methods decreased. After the advances in computer sciences, scientists and experts had moved towards intelligentization and automation.During the past three decades, despite the attention of both academic and industrial fields towards automatic planning and scheduling of projects, Most of the researches focused on construction projects, and unfortunately, a few attentions have... 

    Development of a Model for Analysis of Multinational Integrated Energy System of ECO Region

    , M.Sc. Thesis Sharif University of Technology Miremadi, Iman (Author) ; Saboohi, Yadollah (Supervisor)
    ECO region is perched near to three main energy sources, namely, Russia, Persian Gulf, and Caspian Sea. In this regards, the ECO members consider their co-operation in three directions, namely Trade, Energy, and Transportation, as their main priority. The main strategy of the ECO organization in energy issue is twofold: 1) to speed-up the optimum usage of energy sources with minimal cost and, 2) enables access to each other's markets and also to the international market. In fact, the energy producer countries as well as the energy transferor countries, both have a close role in the process of production and proffering. The increased dimensions and complexity of inter-related energy system... 

    Corrosion detection in pipes by piezoelectric sensors using Artificial Neural Network

    , Article Advanced Materials Research, 4 November 2011 through 6 November 2011 ; Volume 403-408 , November , 2012 , Pages 748-752 ; 10226680 (ISSN) ; 9783037853122 (ISBN) Rafezi, H ; Rahmani, B ; Sharif University of Technology
    Defect detection in pipes is an essential task specially for sensitive applications such as oil and gas industry where special cares are required. Corrosion is a common defect in pipes which has attracted attention of researchers. In present work a non-destructive methodology for pipe corrosion monitoring is introduced. Polymer of Vinylidene Fluoride (PVDF) Piezoelectric is used as the sensor to measure strain variations affected by internal corrosion. High sensitivity and low cost of piezoelectric materials made them a good candidate for precise industrial applications. Different corrosion conditions (i.e. corrosion location along pipe and corrosion depth) are modeled and sensors voltages... 

    A modified method for predicting the stresses around producing boreholes in an isotropic in-situ stress field

    , Article International Journal of Rock Mechanics and Mining Sciences ; Volume 96 , 2017 , Pages 85-93 ; 13651609 (ISSN) Hassani, A. H ; Veyskarami, M ; Al Ajmi, A. M ; Masihi, M ; Sharif University of Technology
    Rock formations are always under in situ stresses due to overburden or tectonic stresses. Drilling a well will lead to stress redistribution around the well. Understanding such a stress redistribution, and adopting a proper failure criterion, play a vital role in predicting any potential wellbore failure. However, most of the published analytical models are based on assumptions that do not satisfy the boundary conditions during production, that is, when the well pressure is less than the pore pressure. This paper is aimed at the modeling of the stress regime around the wellbore through combining the poroelastic model with proper boundary conditions under different flow regimes. As a result,... 

    Photo-Electrochemical application of ZnOG thin film for in situ monitoring of steel sour corrosion

    , Article Surface Engineering and Applied Electrochemistry ; Volume 56, Issue 2 , 2020 , Pages 242-247 Razavizadeh, O ; Ghorbani, M ; Shafiekhani, A ; Sharif University of Technology
    Pleiades Publishing  2020
    Abstract: Further to traditional corrosion monitoring techniques for rated deteriorations, nowadays modern electrochemical monitoring methods are promising for the control of non-rated damage mechanisms. Considering carbon steel as the most commonly used alloy in the oil and gas industry, there are special grades under NACE MR0175 standard which are immune to sour corrosion. However, according to the industry reports, their immunity can be terminated by upset conditions or on site repairs. This issue will impose either a high operational risk or exorbitant maintenance and inspection costs. Hence, in this paper, a new monitoring technology framework is discussed to lessen a catastrophic... 

    Claims Prevention Management & Counter Claim Management in Oil Industry Projects of Iran

    , M.Sc. Thesis Sharif University of Technology Hasheminasab, Hamidreza (Author) ; Ebrahimi, Nasrollah (Supervisor) ; Mortaheb, Mohammad Mehdi (Supervisor)
    In recent years, frequent involvements in claims have been inevitable due to unpredictable economic changes and increasing complexities in construction industry. Therefore, even appropriately made contracts are not exempted from claims. On the other hand, construction contract claims are time-consuming, expense-involving and most likely leading to unsatisfactory results. However, there may be some positive outcomes, such as time extension or compensation of damages. To launch investigationson claim management, a list of important and frequent claims in oil and gas industry projects of Iran was extracted after a succinct documents review. Further, the most important claim causes were... 

    Weak Fialure of Engineered Innovation Networks: The Analysis and Explanation of the Phenomena Based on Process Approach and by Using Knowledge Base Concept

    , Ph.D. Dissertation Sharif University of Technology Nilforoushan, Hadi (Author) ; Arasti, Mohammad Reza (Supervisor)
    This document, is the thesis on the field of science and technology policy. The subject is the analysis and explanation of engineered innovation networks based on process approach and by using knowledge base concept. The failure of networks is one of the causes of the failure in the innovation systems, so the analysis of the phenomena would be very important for innovation policy makers for networking. The two main questions of this study are:
    a) How do engineered innovation networks fail in the initiation stage?
    b) How could we explain this process by using the concept of the knowledge base of innovative activities? During this study, which has beed done based on the... 

    Identification And Assessment of Major Risks Associated with Heavy Equipment Transportation in Iranian Oil, Gas and Petrochemical Projects

    , M.Sc. Thesis Sharif University of Technology Seyedi, Amin (Author) ; Eslami, Hossein (Supervisor)
    Transportation of heavy and super heavy equipment is one of the issues that have been discussed in recent years. High cost and required expertise of Transportation for oil and gas projects has caused many organizations and Iranian companies turn to outsourcing strategy and have invested a lot of money in this field without regard to its Risks. Unfortunately, the lack of risk management in transportation projects has led to an increase in refractive index. In this thesis, have been identified the risks of heavy and super-heavy transport equipment in the oil, gas and petrochemical industries then prioritize the risks identified. Finally, each of the identified risks in Iran is investigated.... 

    Investigating the Impact of International Policies on Supply Chain Management in Oil, Gas, and Petrochemical Industries

    , M.Sc. Thesis Sharif University of Technology Shiri, Mohammad Ali (Author) ; Najafi, Mehdi (Supervisor) ; Rafiee, Majid (Supervisor)
    Policies affect supply chain management in oil, gas and petrochemical industries. In this study, structural equation modeling was used to evaluate the relationship between variables in AMOS software. The findings also indicated that international policies affect different aspects of supply chain management in the following order: product realization management (coordination), customer delivery management (partnership), planning management (planning) and resource management (implementation). Finally, suggestions were made on how to find financing such as bank loans, prioritizing payments in the light of their criticality, as well as on the creation. This study aimed to investigate the impact... 

    A genetic algorithm for a creativity matrix cubic space clustering: A case study in Mazandaran Gas Company

    , Article Applied Soft Computing Journal ; Volume 13, Issue 4 , 2013 , Pages 1661-1673 ; 15684946 (ISSN) Aalaei, A ; Fazlollahtabar, H ; Mahdavi, I ; Mahdavi Amiri, N ; Yahyanejad, M. H ; Sharif University of Technology
    Creativity is a promoting factor in organizations. Having employees in structured and organized configurations in a creative manner, helps in improving the productivity. We investigate different structural aspects of teams' network organization and the creativity within a knowledge development program (KDP). The proposed methodology being equipped with a heuristic clustering technique, classifies the employees with respect to creativity parameters and configures a creativity matrix. Applying the creativity matrix, clustering is performed via mathematical programming. For large problems, a genetic algorithm (GA) is developed to solve the mathematical model. We also employ the Taguchi method... 

    Optimal gas distribution network using minimum spanning tree

    , Article Proceedings - 2010 IEEE 17th International Conference on Industrial Engineering and Engineering Management, IE and EM2010, 29 October 2010 through 31 October 2010 ; October , 2010 , Pages 1374-1377 ; 9781424464814 (ISBN) Mahdavi, I ; Mahdavi Amiri, N ; Makui, A ; Mohajeri, A ; Tafazzoli, R ; Sharif University of Technology
    Here, a case study of natural gas network is conducted. We design an optimal distribution network of natural gas. Our proposed network is composed of stations reducing gas pressure to desirable pressure using consumer's viewpoint. By using minimum spanning tree (MST) technique, an optimal distribution network among stations and consumers is constructed. Our aim is to determine both locations and types of stations minimizing location-allocation costs in the network. A case study in Mazandaran Gas Company in Iran is made to assess the validity and effectiveness of the proposed model  

    An optimal natural-gas network using minimum spanning tree

    , Article 40th International Conference on Computers and Industrial Engineering: Soft Computing Techniques for Advanced Manufacturing and Service Systems, CIE40 2010, 25 July 2010 through 28 July 2010 ; July , 2010 ; 9781424472956 (ISBN) Mahdavi, I ; Mohajeri, A ; Arabmaghsudi, M ; Yahyanejad, M. H ; Taghipourian, F ; Mahdavi Amiri, N ; Sharif University of Technology
    We consider the design of an optimal natural-gas network. Our proposed network contains two echelons, Town Broad Stations (TBSs), and consumers (demand zones). Here, our aim is a two-stage cost minimization. We first determine locations of the TBS so that the location-allocation cost is minimized. Then, we show how to distribute the flow of gas among the TBS minimizing the flow cost by using Minimum Spanning Tree (MST). A case study in Mazandaran Gas Company in Iran is made to assess the validity and effectiveness of our proposed model  

    Identification of flow units using methods of testerman statistical zonation, flow zone index, and cluster analysis in tabnaak gas field

    , Article Journal of Petroleum Exploration and Production Technology ; Volume 6, Issue 4 , 2016 , Pages 577-592 ; 21900558 (ISSN) Mahjour, S. K ; Ghasem Al Askari, M. K ; Masihi, M ; Sharif University of Technology
    Springer Verlag 
    The relation between porosity and permeability parameters in carbonated rocks is complicated and indistinct. Flow units are defined with aim of better understanding reservoir unit flow behavior and relation between porosity and permeability. Flow units reflect a group of rocks with same geological and physical properties which affect fluid flow, but they do not necessarily coincide with boundary of facies. In each flow unit homogeneity of data is preserved and this homogeneity fades in the boundaries. Here, in this study, three methods are used for identification of flow units and estimation of average porosity and permeability in three wells of Tabnaak gas field located in south of Iran....