In this paper experimental equilibrium data on the system supercritical CO2-orange essential oil and the system supercritical CO2-linalool are reported at 323.15 K and 343.15 K, for pressures in the ranges of 7.6-13.5...In this paper experimental equilibrium data on the system supercritical CO2-orange essential oil and the system supercritical CO2-linalool are reported at 323.15 K and 343.15 K, for pressures in the ranges of 7.6-13.5 MPa. The behavior of the system supercritical CO2-orange essential oil was represented by means of thermodynamic model, based on Peng-Robinson equation of state. To this aim the orange essential oil was represented by a mixture of limonene, linalool and β-caryophyllene, selected to represent the classes of monoterpenes, oxygenated terpenes and sesquiterpenes respectively. The model uses only regression parameters calculated from binary sub-systems, CO2-limonene and CO2-β-caryophyllene (taken from literature) and CO2-linalool (calculated from the fitting of original data reported in the present work) thus being predictive with respect to the multicomponent mixture.展开更多
The relative permeability curve has been measured with simulation oil (refined oil) and gas (nitrogen or air) at room temperature and a lowpressure, both of which are very important parameters for depicting the flow ...The relative permeability curve has been measured with simulation oil (refined oil) and gas (nitrogen or air) at room temperature and a lowpressure, both of which are very important parameters for depicting the flow of fluid through porous media in a hydrocarbon reservoir. This basic measurement is often applied in exploitation evaluation, but the underground conditions with high temperature and pressure, and the phase equilibrium of oil and gas, are not taken into consideration when the relative permeability curve is tested. There is an important theoretical and practical sense in testing the diphase relative permeability curve of the equilibrium of oil and gas under the conditions of high temperature and pressure. The test method for the relative permeability curve is proposed in this paper. The relative permeability of the equilibrium of oil and gas and the standard one are tested in two fluids, and the differences between these two methods are stated. The research results can be applied to the simulation and prediction of CVD in long cores and then the phenomenon can better explain that the recovery of condensate gas rich in condensate oil is higher than that of CVD test in PVT. Meanwhile, the research shows that the relative permeability curve of equilibrium oil and gas is sensitive to the rate of exploitation, and the viewpoint proves that an improved gas recovery rate can properly increase the recovery of condensate oil.展开更多
Driven by the increasing supply of heavy oils with deteriorating quality,a high nickel-resistant catalyst for catalytic cracking of inferior crude oils was developed by the Research Institute of Petroleum Processing(R...Driven by the increasing supply of heavy oils with deteriorating quality,a high nickel-resistant catalyst for catalytic cracking of inferior crude oils was developed by the Research Institute of Petroleum Processing(RIPP).Catalyst performance was evaluated in a laboratory fixed fluidized bed reactor.The test results showed that the high nickel resistance catalyst exhibited good bottoms crackability,good nickel resistance,and good adaptability to changes in operating parameters,which had no adverse effect on the product distribution,indicating to a most promising prospect for application of this catalyst in catalytic cracking of inferior crude oil.展开更多
Surfactants are widely used in the petroleum industry as one kind of Enhanced Oil Recovery methods (EOR). The oil sands mines in Northern Alberta are the largest one in the world. Due to using sodium hydroxide in bitu...Surfactants are widely used in the petroleum industry as one kind of Enhanced Oil Recovery methods (EOR). The oil sands mines in Northern Alberta are the largest one in the world. Due to using sodium hydroxide in bitumen extraction process, there are a lot of surfactant molecules in the tailing water. The surfactants from oil sands industry have brought a potential threat to the environment and human health. Depending on the performance of surfactant at the interface, this work focuses on removing these harmful surfactants from the tailing water and not bringing other possible hazardous substances. Moreover, a mathematical model is built to calculate the removal efficiency of the surfactant. The time required for removing the surfactant is determined experimentally. In conclusion, most of surfactant molecules are adsorbed at the oil/water interface. The fraction of the surfactant staying at the oil/water interface is high. Most of the surfactants in tailing water can be eliminated. The time of surfactant migration can be used for setting up the update time of the oil film in the automatic instrument, which can be designed in the future.展开更多
惠州26-6构造目的层面临流体类型复杂、流体判识难度大的问题,而传统气测录井方法受仪器精度影响,凝析气与轻质油的气测录井响应差异不明显。针对上述复杂问题,基于实时流体录井(fluids logging&analysis in real-time,FLAIR)资料,...惠州26-6构造目的层面临流体类型复杂、流体判识难度大的问题,而传统气测录井方法受仪器精度影响,凝析气与轻质油的气测录井响应差异不明显。针对上述复杂问题,基于实时流体录井(fluids logging&analysis in real-time,FLAIR)资料,在统计区域内气层、凝析气层及油层的烃组分比值特征基础上,优选烃组分参数,结合测井、取样及测试资料,提出了研究区目的层潜山气油界面划分及流体识别技术体系。研究表明:FLAIR烃湿度比(humidity ratio,WH)、烃平衡比(equilibrium ratio,BH)建立定性流体识别图版可以较好地识别凝析气组分和轻质油响应,凝析气的烃组分甲烷(methane,C_(1))、乙烷(ethane,C_(2))占比高,而轻质油的烃组分丙烷(propane,C_(3))、丁烷(butane,C_(4))、戊烷(pentane,C_(5))、己烷(hexane,C_(6))占比高;利用气油比指数R与测试、电缆泵抽取样气油比建立关系模型。结果表明,干气:BH>20,WH<11,气油比指数R>61.54;凝析气:BH>15,WH<19,气油比指数R介于2.16~61.54;油:BH<15,WH>19,气油比指数R<2.16。通过两种方法相结合,有效解决了研究区目的层潜山气油界面划分及流体识别难题,证实该方法在复杂储集层及流体条件下具有广泛的推广应用价值。展开更多
文摘In this paper experimental equilibrium data on the system supercritical CO2-orange essential oil and the system supercritical CO2-linalool are reported at 323.15 K and 343.15 K, for pressures in the ranges of 7.6-13.5 MPa. The behavior of the system supercritical CO2-orange essential oil was represented by means of thermodynamic model, based on Peng-Robinson equation of state. To this aim the orange essential oil was represented by a mixture of limonene, linalool and β-caryophyllene, selected to represent the classes of monoterpenes, oxygenated terpenes and sesquiterpenes respectively. The model uses only regression parameters calculated from binary sub-systems, CO2-limonene and CO2-β-caryophyllene (taken from literature) and CO2-linalool (calculated from the fitting of original data reported in the present work) thus being predictive with respect to the multicomponent mixture.
基金This paper was subsidized by the 15th National key Sci-Tech Project (NO.2001BA605A02-04-01)
文摘The relative permeability curve has been measured with simulation oil (refined oil) and gas (nitrogen or air) at room temperature and a lowpressure, both of which are very important parameters for depicting the flow of fluid through porous media in a hydrocarbon reservoir. This basic measurement is often applied in exploitation evaluation, but the underground conditions with high temperature and pressure, and the phase equilibrium of oil and gas, are not taken into consideration when the relative permeability curve is tested. There is an important theoretical and practical sense in testing the diphase relative permeability curve of the equilibrium of oil and gas under the conditions of high temperature and pressure. The test method for the relative permeability curve is proposed in this paper. The relative permeability of the equilibrium of oil and gas and the standard one are tested in two fluids, and the differences between these two methods are stated. The research results can be applied to the simulation and prediction of CVD in long cores and then the phenomenon can better explain that the recovery of condensate gas rich in condensate oil is higher than that of CVD test in PVT. Meanwhile, the research shows that the relative permeability curve of equilibrium oil and gas is sensitive to the rate of exploitation, and the viewpoint proves that an improved gas recovery rate can properly increase the recovery of condensate oil.
文摘Driven by the increasing supply of heavy oils with deteriorating quality,a high nickel-resistant catalyst for catalytic cracking of inferior crude oils was developed by the Research Institute of Petroleum Processing(RIPP).Catalyst performance was evaluated in a laboratory fixed fluidized bed reactor.The test results showed that the high nickel resistance catalyst exhibited good bottoms crackability,good nickel resistance,and good adaptability to changes in operating parameters,which had no adverse effect on the product distribution,indicating to a most promising prospect for application of this catalyst in catalytic cracking of inferior crude oil.
文摘Surfactants are widely used in the petroleum industry as one kind of Enhanced Oil Recovery methods (EOR). The oil sands mines in Northern Alberta are the largest one in the world. Due to using sodium hydroxide in bitumen extraction process, there are a lot of surfactant molecules in the tailing water. The surfactants from oil sands industry have brought a potential threat to the environment and human health. Depending on the performance of surfactant at the interface, this work focuses on removing these harmful surfactants from the tailing water and not bringing other possible hazardous substances. Moreover, a mathematical model is built to calculate the removal efficiency of the surfactant. The time required for removing the surfactant is determined experimentally. In conclusion, most of surfactant molecules are adsorbed at the oil/water interface. The fraction of the surfactant staying at the oil/water interface is high. Most of the surfactants in tailing water can be eliminated. The time of surfactant migration can be used for setting up the update time of the oil film in the automatic instrument, which can be designed in the future.
