The Experts below are selected from a list of 180 Experts worldwide ranked by ideXlab platform
J. Moghadasi - One of the best experts on this subject based on the ideXlab platform.
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Prediction of Iron Carbonate Scale Formation in Iranian Oilfields at Different Mixing Ratio of Injection Water with Formation Water
Energy Sources Part A-recovery Utilization and Environmental Effects, 2013Co-Authors: M. Amiri, J. Moghadasi, Mohammad JamialahmadiAbstract:Enhanced oil recovery methods are used to recover the percents of oil that are not naturally recoverable from Reservoirs. Water injection, as a secondary recovery, is used to maintain the Pressure in water-driven Reservoirs. An important point for having a successful injection is the compatibility of injection and formation waters. This article presents the predicting scale tendency and scale precipitation of iron carbonate at different mixing ratios of injection water with formation water in Iranian oilfields. The experimentally measured chemical analyses of formation water and injection water were used by OLI ScaleChem software to determine the formation of this scale. This software has been applied to investigate the potential of iron carbonate scale formation in Iranian oilfields, as a method of secondary recovery or Reservoir Pressure Maintenance.
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Prediction of the Amount of Calcium Carbonate Scale Formation in Iranian Oilfields at Different Pressures
Energy Sources Part A-recovery Utilization and Environmental Effects, 2013Co-Authors: M. Amiri, J. Moghadasi, Mohammad Jamialahmadi, M. Pordel ShahriAbstract:Enhanced oil recovery methods are used to recover the percents of oil, which are not naturally recoverable from Reservoirs. Water injection, as a secondary recovery, is used to maintain the Pressure in water-drive Reservoirs. An important point for having a successful injection is the compatibility of injection and formation waters. This article presents the predicting of calcium carbonate precipitation in formation water, injection water, and mixing of injection water with formation water at different Pressures. The experimentally measured chemical analyses of formation water and injection water were used by OLI ScaleChem software to determine the amount of CaCO3 scale that can be formed. This software has been applied to investigate the potential of calcium carbonate scale precipitation in Iranian oilfields, either in onshore or offshore fields where water injection is being performed for desalting units' water disposal purpose or as a method of secondary recovery or Reservoir Pressure Maintenance. As p...
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The Prediction of Calcium Carbonate and Calcium Sulfate Scale Formation in Iranian Oilfields at Different Mixing Ratios of Injection Water with Formation Water
Petroleum Science and Technology, 2012Co-Authors: M. Amiri, J. MoghadasiAbstract:Abstract This article presents the prediction of calcium carbonate and calcium sulfate scale formation by water injection in oilfields at different mixing injection water-to-formation water ratios. The experimentally measured chemical analyses of formation water and injection water were input to the OLI ScaleChem model to determine the tendency of scale formation. The scaling tendency of CaCO3 and CaSO4 at Reservoir temperatures and Pressures is presented. This model has been applied to investigate the potential of calcium carbonate and calcium sulfate scale precipitation in Iranian oilfields in onshore and offshore fields as a method of secondary recovery or Reservoir Pressure Maintenance.
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Prediction of Scale Formation Problems in Oil Reservoirs and Production Equipment due to Injection of Incompatible Waters
Developments in Chemical Engineering and Mineral Processing, 2008Co-Authors: J. Moghadasi, Adel O. Sharif, H. Müuller-steinhagen, Mohammad JamialahmadiAbstract:In this paper, the mechanisms of scale formation from oilfield water are presented. An accurate model for predicting the scaling phenomena due to mixing of incompatible waters, changes in thermodynamic, kinetic and/or hydrodynamic conditions in oilfield operations is suggested. This model can predict scaling tendency of common oilfield waters in disposal wells, water-flooding systems and in surface equipment and facilities. The model is developed based on experimental data and empirical correlations, which match the oil field conditions accurately. Furthermore, the simultaneous deposition of different oilfield scales and the competition of various ions to form scale are incorporated in the model. The suggested model has been used to investigate the potential for scale precipitation in various Iranian on-shore and off-shore oil fields, where water injection is being performed for the water disposal of desalting units or as a method of secondary recovery or Reservoir Pressure Maintenance.
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Formation Damage in Iranian Oil Fields
International Symposium and Exhibition on Formation Damage Control, 2002Co-Authors: J. Moghadasi, Mohammad Jamialahmadi, Adel O. Sharif, Hans Müller-steinhagen, M.r. Izadpanah, E. Motaei, Reza BaratiAbstract:The fine migration and the scale formation into the porous media and the resulting production decline have long been the problem to the petroleum industry. It is also generally accepted that formation due to the particle movement and the scale formation are not thoroughly understood. In contributing to the solution of this problem, an experimentally study of calcium sulphate scale formation and the particle movement in the porous media using of packing bed with 12 different size of the glass and sand bead and the 8 core plug that gathered from the Siri oilfields. The purpose was to study the different physical and mechanical aspects of the processes leading to the formation damage caused by the movement and the entrapment of the suspended particles and the scale formation. The permeability is the key parameter among several others that control the Reservoir performance. The experiments are based on the results of the permeability reduction. The interception of the permeability reduction by the interaction between the operational parameter is very complex. Therefore, several of these factors such as the temperature, the concentration, the fluid dynamic and the type of porous media are considered. The experimental results are analyzed and a new model which can predicts particle movement and the scaling tendency of the common oilfield water deposits in the water disposal wells, the water flooding systems, and in surface equipment’s and the facilities is developed. The developed of the model is based on the experimental data and the empirical correlation, which perfectly mach the Iranian oilfields condition. This model has been applied to the investigate of the potential of the scale precipitation in the Iranian oilfields, either in the onshore or the offshore fields, where the water injection is being performed for the desalting units water disposal purpose or as the method of secondary recovery or the Reservoir Pressure Maintenance.
Mohammad Jamialahmadi - One of the best experts on this subject based on the ideXlab platform.
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Prediction of Iron Carbonate Scale Formation in Iranian Oilfields at Different Mixing Ratio of Injection Water with Formation Water
Energy Sources Part A-recovery Utilization and Environmental Effects, 2013Co-Authors: M. Amiri, J. Moghadasi, Mohammad JamialahmadiAbstract:Enhanced oil recovery methods are used to recover the percents of oil that are not naturally recoverable from Reservoirs. Water injection, as a secondary recovery, is used to maintain the Pressure in water-driven Reservoirs. An important point for having a successful injection is the compatibility of injection and formation waters. This article presents the predicting scale tendency and scale precipitation of iron carbonate at different mixing ratios of injection water with formation water in Iranian oilfields. The experimentally measured chemical analyses of formation water and injection water were used by OLI ScaleChem software to determine the formation of this scale. This software has been applied to investigate the potential of iron carbonate scale formation in Iranian oilfields, as a method of secondary recovery or Reservoir Pressure Maintenance.
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Prediction of the Amount of Calcium Carbonate Scale Formation in Iranian Oilfields at Different Pressures
Energy Sources Part A-recovery Utilization and Environmental Effects, 2013Co-Authors: M. Amiri, J. Moghadasi, Mohammad Jamialahmadi, M. Pordel ShahriAbstract:Enhanced oil recovery methods are used to recover the percents of oil, which are not naturally recoverable from Reservoirs. Water injection, as a secondary recovery, is used to maintain the Pressure in water-drive Reservoirs. An important point for having a successful injection is the compatibility of injection and formation waters. This article presents the predicting of calcium carbonate precipitation in formation water, injection water, and mixing of injection water with formation water at different Pressures. The experimentally measured chemical analyses of formation water and injection water were used by OLI ScaleChem software to determine the amount of CaCO3 scale that can be formed. This software has been applied to investigate the potential of calcium carbonate scale precipitation in Iranian oilfields, either in onshore or offshore fields where water injection is being performed for desalting units' water disposal purpose or as a method of secondary recovery or Reservoir Pressure Maintenance. As p...
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Prediction of Scale Formation Problems in Oil Reservoirs and Production Equipment due to Injection of Incompatible Waters
Developments in Chemical Engineering and Mineral Processing, 2008Co-Authors: J. Moghadasi, Adel O. Sharif, H. Müuller-steinhagen, Mohammad JamialahmadiAbstract:In this paper, the mechanisms of scale formation from oilfield water are presented. An accurate model for predicting the scaling phenomena due to mixing of incompatible waters, changes in thermodynamic, kinetic and/or hydrodynamic conditions in oilfield operations is suggested. This model can predict scaling tendency of common oilfield waters in disposal wells, water-flooding systems and in surface equipment and facilities. The model is developed based on experimental data and empirical correlations, which match the oil field conditions accurately. Furthermore, the simultaneous deposition of different oilfield scales and the competition of various ions to form scale are incorporated in the model. The suggested model has been used to investigate the potential for scale precipitation in various Iranian on-shore and off-shore oil fields, where water injection is being performed for the water disposal of desalting units or as a method of secondary recovery or Reservoir Pressure Maintenance.
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Formation Damage in Iranian Oil Fields
International Symposium and Exhibition on Formation Damage Control, 2002Co-Authors: J. Moghadasi, Mohammad Jamialahmadi, Adel O. Sharif, Hans Müller-steinhagen, M.r. Izadpanah, E. Motaei, Reza BaratiAbstract:The fine migration and the scale formation into the porous media and the resulting production decline have long been the problem to the petroleum industry. It is also generally accepted that formation due to the particle movement and the scale formation are not thoroughly understood. In contributing to the solution of this problem, an experimentally study of calcium sulphate scale formation and the particle movement in the porous media using of packing bed with 12 different size of the glass and sand bead and the 8 core plug that gathered from the Siri oilfields. The purpose was to study the different physical and mechanical aspects of the processes leading to the formation damage caused by the movement and the entrapment of the suspended particles and the scale formation. The permeability is the key parameter among several others that control the Reservoir performance. The experiments are based on the results of the permeability reduction. The interception of the permeability reduction by the interaction between the operational parameter is very complex. Therefore, several of these factors such as the temperature, the concentration, the fluid dynamic and the type of porous media are considered. The experimental results are analyzed and a new model which can predicts particle movement and the scaling tendency of the common oilfield water deposits in the water disposal wells, the water flooding systems, and in surface equipment’s and the facilities is developed. The developed of the model is based on the experimental data and the empirical correlation, which perfectly mach the Iranian oilfields condition. This model has been applied to the investigate of the potential of the scale precipitation in the Iranian oilfields, either in the onshore or the offshore fields, where the water injection is being performed for the desalting units water disposal purpose or as the method of secondary recovery or the Reservoir Pressure Maintenance.
Pedro Gonzalez - One of the best experts on this subject based on the ideXlab platform.
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Experimental Research on Downward Two-Phase Flow
SPE Annual Technical …, 2002Co-Authors: Ali Hernandez, Leonor Gonzalez, Pedro GonzalezAbstract:There are several applications in the Oil Industry where it is necessary to be able to predict the Pressure drop in downward two-phase flow. One of these applications has to do with recent developments on simultaneous water and gas injection projects for Reservoir Pressure Maintenance purposes. In order to be able to properly design surface facilities for the simultaneous injection of natural gas and water, a fairly good estimate must be made on the surface injection Pressure required for a desired down-hole injection Pressure. Unfortunately, there are very few correlations available in the literature that can be used for downward two-phase flow. Furthermore, field scale data that can be used to test these correlations is not available, so their predictive power is unknown. In order to gain insight on Pressure drop, flow patterns and liquid hold-up expected in downward two-phase flow, an experimental work was performed using 2 in I.D. pipes with water and air as process fluids. The experimental results are presented in this paper, together with a comparison of these results with the predictions of currently used correlations.
Jose R. Vielma - One of the best experts on this subject based on the ideXlab platform.
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Lessons Learned from Water Shut-off of Horizontal Wells Using Inflatable Packers and Water Shut-off Chemicals in the Ghawar Field of Saudi Arabia
2013Co-Authors: Hemant K Sharma, Jorge Duarte, Eid Mufeed, Saadoun Turki, Jose R. VielmaAbstract:Due to the advancement of technology and improved capabilities of drilling horizontal wells, producers and injectors are now commonly completed with long horizontals to expose large Reservoir areas. For the Reservoir Pressure Maintenance, the most prevalent means is by using water injection. This injected water, while helping in pressurizing the Reservoir, becomes a curse when it starts to produce with the oil. In addition, as the transmissibility of the water is higher than the oil, water breakthrough is a major challenge facing the oil industry. Various techniques are available and being used worldwide to control/reduce this produced water; however, controlling water production by performing water shut-off (WSO) in horizontal wells is more complicated and challenging than in vertical wells. To control water production in horizontal wells, isolation of the wellbore using inflatable packers in open/cased hole completion and capping with cement has shown little success in the past. Therefore, another technique was attempted to control water production in horizontal oil producers by using mechanical means to isolate the wellbore and chemical means to isolate the matrix/fissure, which forms a permanent barrier and reduces water production. The selection criterion for mechanical isolation and type of chemical suitable for the formation is a tedious task for the petroleum engineer. Most of the time, the vendor’s data that is available is being used and applied for the field application, which shows a low success ratio. In this paper a brief overview has been presented, taking into account two wells from Ghawar field in Saudi Arabia, where a combination of wellbore isolation using inflatable packers and matrix/fissure isolation using an organically cross-linked polymer (OCP) system were performed. The candidate selection criteria, job criteria, planning, execution, and post-job evaluation will be discussed.
M. Amiri - One of the best experts on this subject based on the ideXlab platform.
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Prediction of the Amount of Calcium Carbonate Scale Formation in Iranian Oilfields at Different Pressures
Energy Sources Part A-recovery Utilization and Environmental Effects, 2013Co-Authors: M. Amiri, J. Moghadasi, Mohammad Jamialahmadi, M. Pordel ShahriAbstract:Enhanced oil recovery methods are used to recover the percents of oil, which are not naturally recoverable from Reservoirs. Water injection, as a secondary recovery, is used to maintain the Pressure in water-drive Reservoirs. An important point for having a successful injection is the compatibility of injection and formation waters. This article presents the predicting of calcium carbonate precipitation in formation water, injection water, and mixing of injection water with formation water at different Pressures. The experimentally measured chemical analyses of formation water and injection water were used by OLI ScaleChem software to determine the amount of CaCO3 scale that can be formed. This software has been applied to investigate the potential of calcium carbonate scale precipitation in Iranian oilfields, either in onshore or offshore fields where water injection is being performed for desalting units' water disposal purpose or as a method of secondary recovery or Reservoir Pressure Maintenance. As p...
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Prediction of Iron Carbonate Scale Formation in Iranian Oilfields at Different Mixing Ratio of Injection Water with Formation Water
Energy Sources Part A-recovery Utilization and Environmental Effects, 2013Co-Authors: M. Amiri, J. Moghadasi, Mohammad JamialahmadiAbstract:Enhanced oil recovery methods are used to recover the percents of oil that are not naturally recoverable from Reservoirs. Water injection, as a secondary recovery, is used to maintain the Pressure in water-driven Reservoirs. An important point for having a successful injection is the compatibility of injection and formation waters. This article presents the predicting scale tendency and scale precipitation of iron carbonate at different mixing ratios of injection water with formation water in Iranian oilfields. The experimentally measured chemical analyses of formation water and injection water were used by OLI ScaleChem software to determine the formation of this scale. This software has been applied to investigate the potential of iron carbonate scale formation in Iranian oilfields, as a method of secondary recovery or Reservoir Pressure Maintenance.
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The Prediction of Calcium Carbonate and Calcium Sulfate Scale Formation in Iranian Oilfields at Different Mixing Ratios of Injection Water with Formation Water
Petroleum Science and Technology, 2012Co-Authors: M. Amiri, J. MoghadasiAbstract:Abstract This article presents the prediction of calcium carbonate and calcium sulfate scale formation by water injection in oilfields at different mixing injection water-to-formation water ratios. The experimentally measured chemical analyses of formation water and injection water were input to the OLI ScaleChem model to determine the tendency of scale formation. The scaling tendency of CaCO3 and CaSO4 at Reservoir temperatures and Pressures is presented. This model has been applied to investigate the potential of calcium carbonate and calcium sulfate scale precipitation in Iranian oilfields in onshore and offshore fields as a method of secondary recovery or Reservoir Pressure Maintenance.