The Experts below are selected from a list of 1542 Experts worldwide ranked by ideXlab platform
Guicai Zhang - One of the best experts on this subject based on the ideXlab platform.
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low Gas Liquid Ratio foam flooding for conventional heavy oil
Petroleum Science, 2011Co-Authors: Jing Wang, Guicai Zhang, Jijiang Ge, Baodong Ding, Li ZhangAbstract:The recovery of heavy oil by water flooding is 10% lower than that of conventional crude oil, so enhanced oil recovery (EOR) is of great significance for heavy oil. In this paper, foam flooding with a Gas-Liquid Ratio (GLR) of 0.2:1 for the Zhuangxi heavy oil (325 mPa·s at 55 °C) was performed on cores, sand packs and plate model. In sand pack tests, polymer enhanced foam flooding increased oil recovery by 39.8%, which was 11.4% higher than that for alkali/surfactant/polymer (ASP) flooding under the same conditions. Polymer enhanced foam flooding in plate models shows that the low GLR foam flooding increased oil recovery by about 30%, even when the extended water flooding was finished at 90% water cut. Moreover, it was discovered by microscopy that foam was more stable in heavy oil than in light oil. These results confirm that low GLR foam flooding is a promising technology for displacing conventional heavy oil.
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laboratory study on low Gas Liquid Ratio foam flooding for zhuangxi heavy oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
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Laboratory Study on Low Gas/Liquid Ratio Foam Flooding for Zhuangxi Heavy Oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
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laboratory investigation of enhanced heavy oil recovery by foam flooding with low Gas Liquid Ratio
Petroleum Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang GeAbstract:Abstract This article presents the results of a laboratory study of foam flooding with low Gas–Liquid Ratio for heavy oil in Shengli oilfield. Foam flooding tests were performed in cores, sandpacks, and using a 3D physical model to study the factors affecting displacement efficiency such as Gas–Liquid Ratio, injection slug size, and the viscosity of crude oil. The results showed that the tertiary oil recovery of polymer-enhanced foam flooding with a Gas–Liquid Ratio of 0.2:1 could reach 39% for heavy oil with a viscosity of 325 mPa · s at 55°C, which was 11% higher than alkali/surfactant/polymer flooding by injecting 0.3 pore volume of the same chemical slug. However, the tertiary oil recovery decreased with increasing viscosity of the crude oil.
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Laboratory Investigation of Enhanced Heavy Oil Recovery by Foam Flooding with Low Gas–Liquid Ratio
Petroleum Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang GeAbstract:Abstract This article presents the results of a laboratory study of foam flooding with low Gas–Liquid Ratio for heavy oil in Shengli oilfield. Foam flooding tests were performed in cores, sandpacks, and using a 3D physical model to study the factors affecting displacement efficiency such as Gas–Liquid Ratio, injection slug size, and the viscosity of crude oil. The results showed that the tertiary oil recovery of polymer-enhanced foam flooding with a Gas–Liquid Ratio of 0.2:1 could reach 39% for heavy oil with a viscosity of 325 mPa · s at 55°C, which was 11% higher than alkali/surfactant/polymer flooding by injecting 0.3 pore volume of the same chemical slug. However, the tertiary oil recovery decreased with increasing viscosity of the crude oil.
Jijiang Ge - One of the best experts on this subject based on the ideXlab platform.
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low Gas Liquid Ratio foam flooding for conventional heavy oil
Petroleum Science, 2011Co-Authors: Jing Wang, Guicai Zhang, Jijiang Ge, Baodong Ding, Li ZhangAbstract:The recovery of heavy oil by water flooding is 10% lower than that of conventional crude oil, so enhanced oil recovery (EOR) is of great significance for heavy oil. In this paper, foam flooding with a Gas-Liquid Ratio (GLR) of 0.2:1 for the Zhuangxi heavy oil (325 mPa·s at 55 °C) was performed on cores, sand packs and plate model. In sand pack tests, polymer enhanced foam flooding increased oil recovery by 39.8%, which was 11.4% higher than that for alkali/surfactant/polymer (ASP) flooding under the same conditions. Polymer enhanced foam flooding in plate models shows that the low GLR foam flooding increased oil recovery by about 30%, even when the extended water flooding was finished at 90% water cut. Moreover, it was discovered by microscopy that foam was more stable in heavy oil than in light oil. These results confirm that low GLR foam flooding is a promising technology for displacing conventional heavy oil.
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laboratory study on low Gas Liquid Ratio foam flooding for zhuangxi heavy oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
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Laboratory Study on Low Gas/Liquid Ratio Foam Flooding for Zhuangxi Heavy Oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
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laboratory investigation of enhanced heavy oil recovery by foam flooding with low Gas Liquid Ratio
Petroleum Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang GeAbstract:Abstract This article presents the results of a laboratory study of foam flooding with low Gas–Liquid Ratio for heavy oil in Shengli oilfield. Foam flooding tests were performed in cores, sandpacks, and using a 3D physical model to study the factors affecting displacement efficiency such as Gas–Liquid Ratio, injection slug size, and the viscosity of crude oil. The results showed that the tertiary oil recovery of polymer-enhanced foam flooding with a Gas–Liquid Ratio of 0.2:1 could reach 39% for heavy oil with a viscosity of 325 mPa · s at 55°C, which was 11% higher than alkali/surfactant/polymer flooding by injecting 0.3 pore volume of the same chemical slug. However, the tertiary oil recovery decreased with increasing viscosity of the crude oil.
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Laboratory Investigation of Enhanced Heavy Oil Recovery by Foam Flooding with Low Gas–Liquid Ratio
Petroleum Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang GeAbstract:Abstract This article presents the results of a laboratory study of foam flooding with low Gas–Liquid Ratio for heavy oil in Shengli oilfield. Foam flooding tests were performed in cores, sandpacks, and using a 3D physical model to study the factors affecting displacement efficiency such as Gas–Liquid Ratio, injection slug size, and the viscosity of crude oil. The results showed that the tertiary oil recovery of polymer-enhanced foam flooding with a Gas–Liquid Ratio of 0.2:1 could reach 39% for heavy oil with a viscosity of 325 mPa · s at 55°C, which was 11% higher than alkali/surfactant/polymer flooding by injecting 0.3 pore volume of the same chemical slug. However, the tertiary oil recovery decreased with increasing viscosity of the crude oil.
Ding Baodong - One of the best experts on this subject based on the ideXlab platform.
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Experimental Study of Nitrogen Foam Flooding with Low Gas/Liquid Ratio for Zhuang106 Heavy Oil Reservoir
Journal of Basic Science and Engineering, 2020Co-Authors: Ding BaodongAbstract:In light of development of Zhuang106 heavy oil reservoir after water flooding,and in order to decrease the cost of Gas injection and high injection pressure of conventional foam flooding,an experimental study on nitrogen foam flooding with low Gas/Liquid Ratio was investigated.The results showed that the selective foam system 0.2wt% DS2 +0.5wt% Na2CO3 not only had good foaming performance(The foam volume is 570ml and half life period is 590s),but also could significantly reduce interfacial tension(1.4×10-3mN/m)and had strong emulsifying capacity(The minimum emulsification rotation speed is 275r/min).Core physical simulation showed that nitrogen foam flooding with low Gas/Liquid Ratio of 0.2∶1—0.5∶1,not only enhanced oil recovery of 22%—30%,but also to prevent premature Gas breakthrough,which played the role of a more lasting profile control and flooding.The above results demonstrate that foam flooding with low Gas/Liquid Ratio is a promising economical method for improving heavy oil recovery after water flooding.
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experimental study of nitrogen foam flooding with low Gas Liquid Ratio for zhuang106 heavy oil reservoir
Journal of Basic Science and Engineering, 2012Co-Authors: Ding BaodongAbstract:In light of development of Zhuang106 heavy oil reservoir after water flooding,and in order to decrease the cost of Gas injection and high injection pressure of conventional foam flooding,an experimental study on nitrogen foam flooding with low Gas/Liquid Ratio was investigated.The results showed that the selective foam system 0.2wt% DS2 +0.5wt% Na2CO3 not only had good foaming performance(The foam volume is 570ml and half life period is 590s),but also could significantly reduce interfacial tension(1.4×10-3mN/m)and had strong emulsifying capacity(The minimum emulsification rotation speed is 275r/min).Core physical simulation showed that nitrogen foam flooding with low Gas/Liquid Ratio of 0.2∶1—0.5∶1,not only enhanced oil recovery of 22%—30%,but also to prevent premature Gas breakthrough,which played the role of a more lasting profile control and flooding.The above results demonstrate that foam flooding with low Gas/Liquid Ratio is a promising economical method for improving heavy oil recovery after water flooding.
Jing Wang - One of the best experts on this subject based on the ideXlab platform.
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low Gas Liquid Ratio foam flooding for conventional heavy oil
Petroleum Science, 2011Co-Authors: Jing Wang, Guicai Zhang, Jijiang Ge, Baodong Ding, Li ZhangAbstract:The recovery of heavy oil by water flooding is 10% lower than that of conventional crude oil, so enhanced oil recovery (EOR) is of great significance for heavy oil. In this paper, foam flooding with a Gas-Liquid Ratio (GLR) of 0.2:1 for the Zhuangxi heavy oil (325 mPa·s at 55 °C) was performed on cores, sand packs and plate model. In sand pack tests, polymer enhanced foam flooding increased oil recovery by 39.8%, which was 11.4% higher than that for alkali/surfactant/polymer (ASP) flooding under the same conditions. Polymer enhanced foam flooding in plate models shows that the low GLR foam flooding increased oil recovery by about 30%, even when the extended water flooding was finished at 90% water cut. Moreover, it was discovered by microscopy that foam was more stable in heavy oil than in light oil. These results confirm that low GLR foam flooding is a promising technology for displacing conventional heavy oil.
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laboratory study on low Gas Liquid Ratio foam flooding for zhuangxi heavy oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
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Laboratory Study on Low Gas/Liquid Ratio Foam Flooding for Zhuangxi Heavy Oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
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Experimental Investigation of Enhanced Oil Recovery by Thermal Foam Flooding
Advanced Materials Research, 2011Co-Authors: Jing Wang, Bing Ke WangAbstract:Foam has been widely used in petroleum industry. It could enhance oil recovery by the means of improving mobility Ratio, selective plugging and lowering the interfacial tension(IFT) of oil and water. The influences of concentRation, temperature, Gas-Liquid Ratio, permeability and oil satuRation on the plugging property of 3 foaming agents were studied experimentally. The foaming agent concentRation and the Ratio of steam to nitrogen for thermal foam flooding were optimized. Displacement experiments were performed to investigate the EOR effect of 2# foaming agent. It was shown that the resistance factor increased with the increase of the concentRation, Gas-Liquid Ratio and permeability and the increase velocity slowed down in the later period of experiments. The optimal concentRation was 0.5wt% and the optimum Gas-Liquid Ratio was 1:1. The resistance factor reduced with increasing oil satuRation. The plugging ability lost when the oil satuRation was greater than 0.2. The resistance factors of 1# and 2# foaming agents decreased with increasing temperature but 3# increased. The best concentRation was 0.6wt% and the Ratio of steam to nitrogen was 3:2 for steam and nitrogen foam flooding. In the process of thermal foam flooding, oil recovery increased by 20.82%, and the sweep efficiency and displacement efficiency was 13% and 24.6% , separately.
Lei Wang - One of the best experts on this subject based on the ideXlab platform.
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laboratory study on low Gas Liquid Ratio foam flooding for zhuangxi heavy oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
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Laboratory Study on Low Gas/Liquid Ratio Foam Flooding for Zhuangxi Heavy Oil
Journal of Dispersion Science and Technology, 2011Co-Authors: Guicai Zhang, Jijiang Ge, Baodong Ding, Jing Wang, Na Li, Li Zhang, Lei WangAbstract:Considering the high cost and injection pressure of conventional foam flooding, foam flooding with low Gas/Liquid Ratio was proposed to enhance the heavy oil recovery. A foamer containing 0.2 wt% α -olefin sulfonate, 0.1 wt% HPAM and 0.5 wt% Na2CO3 was selected for Zhuangxi heavy oil. Then the foam stability and low Gas/Liquid Ratio foam flooding were studied via micro model and sand pack experiments. The results indicate that the foam is much more stable in heavy oil than in diesel; in flooding tests, this foamer with Gas/Liquid Ratio of 0.2:1 increases the oil recovery by 39.8%, which is nearly 11% higher than ASP solution in terms of the same injection volume (0.3PV) and agents.
