ORALS

SESSION: EnergyTuePM1-R11	8th Intl. Symp. on Sustainable Energy Production: Fossil; Renewables; Nuclear; Waste handling , processing, & storage for all energy production technologies; Energy conservation
Tue. 28 Nov. 2023 / Room: DiscoRoom
Session Chairs: Manfred Mauntz; Harold Dodds; Session Monitor: TBA

14:55: [EnergyTuePM107] OL Keynote
INVESTIGATION ON CONDENSATE BLOCKING PROBLEM AND ITS SOLUTION FOR A GAS CONDENSATE RESERVOIR
Abdollah Esmaeili¹ ; ¹Universidade Federal do Pará (UFPA), Belem, Brazil;
Paper Id: 35 [Abstract]

If we produce from gas condensate reservoir while its pressure is under dew point pressure, there will be a liquid accumulation area adja cent to the well. These formed condensates cause many problems, including a negative impact on production and productivity. In fact, this destructive effect of condensate is due to the tendency of the reservoir rock to be wet with liquids, which causes the porous media to be blocked by this phase. This negative effect is so destructive that, along with other damage to the reservoir, such as skin factor, its value should be taken into account in the calculations. The research done on this issue has shown that methods can be used to open the path for the passage of gas. The best method to achieve this goal is to reduce capillary pressure, which two methods are suggested for this purpose: reducing the tendency for wetting by liquid and gas miscible injecting to reduce the interfacial tension between gas and condensate, which both of these mechanisms lead to capillary pressure reduction. Such studies need to know and evaluate the behavior of gas and condensate and the petrophysical properties of the reservoir in order to be able to chose the best chemical composition of injected gas into the reservoir. In this paper, condensate blocking problem and its solution for a gas condensate reservoir will be discussed.

References:
1. D.R Mc Cord & Assoc., "Reservoir Engineering and Geological Study and Analysis for Fracture Operation", vol. 2, 1974. 2. D.R.Mc Cord & Assoc., "Fracture Study of Asmari Reservoir", 1975. 3. "Log Interpretation Charts", Schlumberger Well Services, 1989. 4. "Schlumberger Log Interpretation Principles", Schlumberger Educational ervices, 1989. 5. Tiratsoo, E.N., "Oil Field of the World", Gulf Publishing Company, 1986. 6. Sylvain j. pirson, "WELL LOG ANALYSIS", Prentice-Hall, 1989. 7. Thompson & Wright, "OIL PROPERTY EVALUATION", Colorado School of Mines, 1985. 8. James R. Jorden & Frankl. Campbell,"Well Logging", Society of Petroleum Engineers, 1994.

SESSION: EnergyTuePM2-R11	8th Intl. Symp. on Sustainable Energy Production: Fossil; Renewables; Nuclear; Waste handling , processing, & storage for all energy production technologies; Energy conservation
Tue. 28 Nov. 2023 / Room: DiscoRoom
Session Chairs: Manfred Mauntz; Harold Dodds; Session Monitor: TBA

16:00: [EnergyTuePM209] OL
WELL TEST AND ITS APPLICATION FOR A GAS CONDENSATE RESERVOIR
Abdollah Esmaeili¹ ; ¹Universidade Federal do Pará (UFPA), Belem, Brazil;
Paper Id: 33 [Abstract]

Well testing operation of gas condensate reservoirs is one of the complex issues in reservoir engineering. Performing this operation requires precision sampling and laboratory analysis and if these things are not followed, the obtained results will be uninterpretable. The reason for the complexity of well testing for gas condensate reservoirs can be related to phase changes, condensate remaining in finer pores, the two-phase flow of gas and liquid, phase redistribution in and around the well, and finally, re-evaporation of condensate into the gas phase. In such conditions, it has been observed that the graph of the derivative of pressure in terms of time in the gas condensate reservoirs after transition from the dew point looks like scattered and cannot be interpreted. Now, considering these conditions, the exact reason for this phenomenon should be understood and the suitable corrections should be found for the application of these data or, if necessary, a suitable technique for performing well testing operations on gas condensate reservoirs should be designed. Methods which can normally be taken for this purpose is using of mathematical relations that provide the appropriate virtual pressure for the purposed gas condensate, considering the geological and petrophysical properties of the formation and PVT properties and equations of state for reservoir fluid. In this paper, Well Test and its application for a gas condensate reservoir will be discussed.

References:
1. D.R Mc Cord & Assoc., "Reservoir Engineering and Geological Study and Analysis for Fracture Operation", vol. 2, 1974. 2. D.R.Mc Cord & Assoc., "Fracture Study of Asmari Reservoir", 1975. 3. "Log Interpretation Charts", Schlumberger Well Services, 1989. 4. "Schlumberger Log Interpretation Principles", Schlumberger Educational ervices, 1989. 5. Tiratsoo, E.N., "Oil Field of the World", Gulf Publishing Company, 1986. 6. Sylvain j. pirson, "WELL LOG ANALYSIS", Prentice-Hall, 1989. 7. Thompson & Wright, "OIL PROPERTY EVALUATION", Colorado School of Mines, 1985. 8. James R. Jorden & Frankl. Campbell,"Well Logging", Society of Petroleum Engineers, 1994.

SESSION: EnergyTuePM2-R11	8th Intl. Symp. on Sustainable Energy Production: Fossil; Renewables; Nuclear; Waste handling , processing, & storage for all energy production technologies; Energy conservation
Tue. 28 Nov. 2023 / Room: DiscoRoom
Session Chairs: Manfred Mauntz; Harold Dodds; Session Monitor: TBA

16:25: [EnergyTuePM210] OL
NATURAL GAS INJECTION AND ITS EFFECT ON RESERVOIR FLUID PROPERTIES
Abdollah Esmaeili¹ ; ¹Universidade Federal do Pará (UFPA), Belem, Brazil;
Paper Id: 34 [Abstract]

Gas injection in oil reservoirs causes the oil to be directed towards production wells and the amount of oil recovery in the reservoir increases by changing the thermodynamic properties of the reservoir fluid. In this paper, the effect of natural gas injection in a normal oil reservoir has been studied and the changes obtained on the fluid properties of the reservoir due to this injection have been investigated. For this purpose, first, the properties of primary reservoir fluid have been studied. Then, properties of current reservoir fluid which were achieved by PVT tests have been studied. Phase behavior of current reservoir fluid was compared with phase behavior of primary reservoir fluid. It was found that phase behavior of reservoir fluid has been changed due to gas injection into this reservoir.

References:
1- A.A.Zick, ARCO Oil & Gas Co,” A Combined Condensing /Vaporizing Mechanism in the Displacement of oil by Enriched Gases” SPE 15493, (1986) 2- Wong, G.K., Fors, R.R., Casassa, J.S., and Hite, R.H., “Design, Execution, and Evaluation of Fracture and Pack (F&P) Treatments in Unconsolidated Sand Formations in the Gulf of Mexico”, SPE 26563, 68th Annual Technical Conference and Exhibition, Houston, TX, 3 - 6 October, 1993. 3- Z. Novosad, “Composition and Phase Changes in Testing and Producing Retrograde Gas Wells”, SPE Reservoir Engineering, vol. 11, 1996, pp. 231-235.

SESSION: EnergyTuePM2-R11	8th Intl. Symp. on Sustainable Energy Production: Fossil; Renewables; Nuclear; Waste handling , processing, & storage for all energy production technologies; Energy conservation
Tue. 28 Nov. 2023 / Room: DiscoRoom
Session Chairs: Manfred Mauntz; Harold Dodds; Session Monitor: TBA

17:15: [EnergyTuePM212] OL
IMPORTANCE OF PROJECT MANAGEMENT AND ITS ROLE IN OIL AND GAS INDUSTRIES
Abdollah Esmaeili¹ ; ¹Universidade Federal do Pará (UFPA), Belem, Brazil;
Paper Id: 36 [Abstract]

What gives meaning and life to the project is the project management. The basis of project management is the systematic control of time, cost, quantity and quality variables in all phases of the project and achieving an optimal combination of the mentioned components. The project manager, with the help of prominent experts who work on a project in the form of a system, must explore the various relationships between the different activities of the project phases and take into account all the limitations and requirements (technical, economic, human, political, etc.), organize a comprehensive plan for the implementation of the project. If we take a look at the project situation in oil and gas companies, we will see that every year many projects are defined in these companies and a lot of money is allocated to them. Every year, some companies suffers from the prolongation of projects. The non-fulfillment of the goals of the projects imposes a lot of economic and social losses on the oil and gas companies. If we add opportunity costs to these losses, the losses will be much more than these. If these cases are precisely rooted, one of the factors of such a situation is neglecting project management knowledge and not using the tools of this knowledge in these projects. In this paper, Importance of project management and its role in oil and gas industries will be discussed.