Sharif Digital Repository

There are a lot of Fractured reservoirs around the world that have large portion of oil production. These reservoirs have complex structure and fractures have important role in production but the remaining oil in matrix causes that the oil recovery decreases. One of the most important factors in these reservois are wettability. Because most of the fractured reservoirs are oil wet and water injection process in these reservoirs are not effective and chemical EOR methods such as surfactant flooding method is used. Surfactant improve oil recovery by two reasons: 1- reduction of interfacial tension between oil and water . 2-Wettability alteration of matrix. The porpose of this project is... 

In recent years, due to the development of smart wells, optimization of waterflooding by injection/production rate control has receivedsome interests. We can postpone breakthrough time and increase the sweep efficiency by using inflow control valves (ICV). Due to complexity of reservoirs, existence of constraints and numerous influencing parameters, we need a robust and suitable optimization approach to overcome such problems. In this thesis, model predictive control (MPC) is chosen to be our optimization approach. MPC is suitable for constrained multi variable functions. Genetic algorithm is was chosenas optimizer. Eclipse reservoir simulator was used for reservoir simulation. Eclipse input... 

Today, with the reduction of world oil prices and the development of competing energy sources, fossil fuels such as nuclear energy, electricity, wind, etc., in order to increase the economic efficiency of oil sales, we must Reduce production costs to a minimum. If the components of oil extraction costs are examined, the cost of drilling production wells is one of the main economic components that affect the cost of producing oil. Therefore, according to the above explanations, the cost of drilling wells should be reduced.To reduce the cost of drilling a well to be drilled, it is better to predict the drilling parameters (for example ROP) before starting the drilling process. For this... 

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... 

Institution covers wide range of rules, laws and policies. Two bodies of literature around institutions and resource curse have evaluated institutional quality by limited indices. In addition, although different institutions have different effects on economy, the literature hasn’t classified different kinds of institution. Furthermore, resources can affect institutions in different ways. This research has been surveyed the impact of resource dependence on institutional quality. Institutions that regulate relation between governors and citizens were named governmental institutions. Institutions that regulate the relation of citizens were named nongovernmental institutions. Governmental... 

Determining the time of breakthrough of injected water is important when assessing waterflood in an oil reservoir. Breakthrough time distribution for a passive tracer (for example water) in percolation porous media (near the percolation threshold) gives insights into the dynamic behavior of flow in geometrically complex systems. However, the application of such distribution to realistic two-phase displacements can be done based on scaling of all parameters. Here, we propose two new approaches for scaling of breakthrough time (characteristic times) in two-dimensional flow through percolation porous media. The first is based on the flow geometry, and the second uses the flow parameters of a... 

Using a panel dataset of oil discoveries and oil prices, this thesis studies the effect of oil wealth on protection of property rights in 56 oil countries between 1995 to 2018. Controlling for year fixed effects and country fixed effects, We show that this association is affected by the ownership of oil in this countries. In countries that government is owned all the oil industry, a strong correlation is observable between oil wealth and property rights policies. But in countries that private ownership on oil is legal and the government is not monopolist in the oil ownership, this correlation is insignificant. This results are robust with controlling the GDP per capita, political regime...