| 高矿化度体系碳酸钙结垢动力学研究 |
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| 引用本文： | 江绍静,余华贵,刘春燕.高矿化度体系碳酸钙结垢动力学研究[J].应用化工,2011(9). |
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| 作者姓名： | 江绍静 余华贵 刘春燕 |
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| 作者单位： | 陕西延长石油(集团)有限责任公司研究院; |
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| 摘 要： | 研究了高矿化度油田模拟水中各离子初始浓度、pH值对成垢量的影响。结果表明,钙离子、硫酸根离子初始浓度的增加会增加结垢量,碳酸氢根离子、pH值对结垢量的影响较小,氯离子的增加会溶解部分垢量。碳酸钙过饱和溶液中,电导率法能直观测量碳酸钙过饱和溶液的离子浓度,电导率与离子浓度具有良好的线性关系。CaCO3结垢过程中,晶核生成与晶粒长大的活化能分别为32 072 J和13 177 J。
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| 关 键 词： | 碳酸钙垢 高矿化度体系 电导率 活化能 |
Research on the scaling dynamic model of the high salinity system |
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| JIANG Shao-jing,YU Hua-gui,LIU Chun-yan Co.,Ltd.,Xi'an ,China.Research on the scaling dynamic model of the high salinity system[J].Applied chemical industry,2011(9). |
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| Authors: | JIANG Shao-jing YU Hua-gui LIU Chun-yan Co Ltd Xi'an China |
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| Affiliation: | JIANG Shao-jing,YU Hua-gui,LIU Chun-yan(Institute of Shaanxi Yanchang Petroleum(Group) Co.,Ltd.,Xi'an 710075,China) |
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| Abstract: | The effect of initial concentration of various ions and pH value of the simulate high salinity oil-field water on scaling quantity was studied.Results showed that scaling quantity increased with increasing the initial concentration of Ca2+ and SO42-.The influence of HCO3-and pH on scaling quantity was little.The scale would dissolve with increasing Cl-.The ion concentration of CaCO3 supersaturated solution can be measured directly by conductivity method.There has a good linear relationship between conductiv... |
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| Keywords: | calcium carbonate scale high salinity system electric conductivity activation energy |
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