Alireza Bigdeli | University of Tehran (original) (raw)
Papers by Alireza Bigdeli
Day 4 Thu, June 08, 2023
In this work, we present a case study of the integration of surface facility models and a deepwat... more In this work, we present a case study of the integration of surface facility models and a deepwater reservoir, as well as an engineering evaluation of the implications of liquid-liquid subsea separation (LLSS) on the integration process. For this, a heavy oil sandstone reservoir and several surface facility layouts were computationally integrated using a commercial simulator. A gathering unit, subsea separator, and water disposal unit were added to the surface facility model layouts to support the LLSS system. The term "merge scenario" was used to refer to the quantity of production streams that were gathered and delivered to the subsea separator. To allow the production from the reservoir model, the minimum bottom-hole pressure (BHP) for the producing wells were defined for all the simulations. Our investigation includes fluids produced at platforms, produced water at disposal unit, the pressure drop in the riser in terms of hydrostatic and friction terms, and economic an...
Journal of Resource Recovery
The primary source of energy is still fossil fuels which need to be managed properly. Energy cons... more The primary source of energy is still fossil fuels which need to be managed properly. Energy consumption is the main motivation behind various hydrocarbon recovery techniques. In general, primary, and secondary techniques of production can result in 20-40% of conventional oil production in place (Nwidee et al. 2016, Thomas 2008, and Muggeridge et al. 2014). As a result, the residual oil will be extracted using various technologies known as Enhanced or Improved Oil Recovery (EOR, or IOR). EOR technologies are classified into three types: thermal, chemical, and gas/solvent injection. Because of the physics of porous media, the trapping and mobilization of crude oil can be difficult to grasp. The underlying physics includes factors, such as high interfacial tension, temperature, oil viscosity, capillary pressure, and complex rock-fluid and fluid-fluid interactions. Injecting chemicals into the reservoir will change the initial equilibrium state of the hydrocarbon fluids, potentially resulting in the mobilization of trapped oil. According to (Machale www.resrecov.com HIGHLIGHTS ➢ A comprehensive review of traditional and novel hybrid CEOR methods. ➢ Provide different methodologies to screen and rank CEOR methods. ➢ Review of experimental workflow for CEOR and scale up methodologies from lab scale to field pilot.
Journal of Resource Recovery
Low-salinity water flooding (LSWF) is the practice of replacing the saline produced water that is... more Low-salinity water flooding (LSWF) is the practice of replacing the saline produced water that is normally recycled during waterflood operations with another water that has reduced salinity and/or modified ionic content to improve recovery (Bartels et al. 2019) There is no specific degree of dilution of the connate water to achieve the effect, but many cases suggest much lower salinity (Sheng, 2014). LSWF has several key advantages including functioning in both sandstone and carbonate reservoirs, low cost of operations, lack of environmental impact, and leverages the industry-wide acceptance and experience with waterflooding. However, even with the wealth of knowledge from academic and industry researchers (360 papers from 2015 to 2019) (Bartels et. al.2019) and 16 review papers, (see Table 1), the technique is still perceived as experimental rather than operational. All LSWF projects require answers to three main questions: (1) how well the target reservoir will (crude oil, brine, rock (CBR) system) respond to LSWF; (2) how much oil will be produced during the LSWF; and (3) what the economics of LSWF for the target reservoir are. Answers to each question are essential in moving the current www.resrecov.com HIGHLIGHTS ➢ Summary of the performance to date of low salinity water flooding for laboratory and field. ➢ Current industry process of assessing and implementing the technique. ➢ Basis for formulating a traditional screening tool. ➢ Economic evaluation of the process on the field scale.
Day 4 Thu, June 08, 2023
In this work, we present a case study of the integration of surface facility models and a deepwat... more In this work, we present a case study of the integration of surface facility models and a deepwater reservoir, as well as an engineering evaluation of the implications of liquid-liquid subsea separation (LLSS) on the integration process. For this, a heavy oil sandstone reservoir and several surface facility layouts were computationally integrated using a commercial simulator. A gathering unit, subsea separator, and water disposal unit were added to the surface facility model layouts to support the LLSS system. The term "merge scenario" was used to refer to the quantity of production streams that were gathered and delivered to the subsea separator. To allow the production from the reservoir model, the minimum bottom-hole pressure (BHP) for the producing wells were defined for all the simulations. Our investigation includes fluids produced at platforms, produced water at disposal unit, the pressure drop in the riser in terms of hydrostatic and friction terms, and economic an...
Journal of Resource Recovery
The primary source of energy is still fossil fuels which need to be managed properly. Energy cons... more The primary source of energy is still fossil fuels which need to be managed properly. Energy consumption is the main motivation behind various hydrocarbon recovery techniques. In general, primary, and secondary techniques of production can result in 20-40% of conventional oil production in place (Nwidee et al. 2016, Thomas 2008, and Muggeridge et al. 2014). As a result, the residual oil will be extracted using various technologies known as Enhanced or Improved Oil Recovery (EOR, or IOR). EOR technologies are classified into three types: thermal, chemical, and gas/solvent injection. Because of the physics of porous media, the trapping and mobilization of crude oil can be difficult to grasp. The underlying physics includes factors, such as high interfacial tension, temperature, oil viscosity, capillary pressure, and complex rock-fluid and fluid-fluid interactions. Injecting chemicals into the reservoir will change the initial equilibrium state of the hydrocarbon fluids, potentially resulting in the mobilization of trapped oil. According to (Machale www.resrecov.com HIGHLIGHTS ➢ A comprehensive review of traditional and novel hybrid CEOR methods. ➢ Provide different methodologies to screen and rank CEOR methods. ➢ Review of experimental workflow for CEOR and scale up methodologies from lab scale to field pilot.
Journal of Resource Recovery
Low-salinity water flooding (LSWF) is the practice of replacing the saline produced water that is... more Low-salinity water flooding (LSWF) is the practice of replacing the saline produced water that is normally recycled during waterflood operations with another water that has reduced salinity and/or modified ionic content to improve recovery (Bartels et al. 2019) There is no specific degree of dilution of the connate water to achieve the effect, but many cases suggest much lower salinity (Sheng, 2014). LSWF has several key advantages including functioning in both sandstone and carbonate reservoirs, low cost of operations, lack of environmental impact, and leverages the industry-wide acceptance and experience with waterflooding. However, even with the wealth of knowledge from academic and industry researchers (360 papers from 2015 to 2019) (Bartels et. al.2019) and 16 review papers, (see Table 1), the technique is still perceived as experimental rather than operational. All LSWF projects require answers to three main questions: (1) how well the target reservoir will (crude oil, brine, rock (CBR) system) respond to LSWF; (2) how much oil will be produced during the LSWF; and (3) what the economics of LSWF for the target reservoir are. Answers to each question are essential in moving the current www.resrecov.com HIGHLIGHTS ➢ Summary of the performance to date of low salinity water flooding for laboratory and field. ➢ Current industry process of assessing and implementing the technique. ➢ Basis for formulating a traditional screening tool. ➢ Economic evaluation of the process on the field scale.