三元复合驱组分协同作用规律研究
三元复合驱中聚合物、碱以及表面活性剂的协同作用能够大幅提高原油采收率,各组分存在的色谱分离会使协同作用大为减弱。通过一维长岩心研究二元/三元体系各组分在线性流过程中吸附规律差异,然后制作二维平面物理模型研究三元复合驱径向流过程中各组分运移规律,判断出三者的协同作用距离,通过数值模拟以及矿场试验结果论证用变浓度多段塞代替单一段塞的可行性。研究表明：三元体系中由于碱的存在可以使超低界面张力保持距离和乳化能力强于二元体系,三元体系一维长岩心的采出程度比二元体系增加了6.32%;三元体系各组分协同作用距离集中在主流线1/2处,各组分运移距离为：聚合物〉碱〉表面活性剂,在后续水驱的过程中表面活性剂存在解...
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| Published in | 中国石油大学学报（自然科学版） Vol. 40; no. 6; pp. 118 - 125 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国石油大学提高采收率研究院,北京,102249%中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依,834000
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1673-5005 |
| DOI | 10.3969/j.issn.1673-5005.2016.06.015 |
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| Abstract | 三元复合驱中聚合物、碱以及表面活性剂的协同作用能够大幅提高原油采收率,各组分存在的色谱分离会使协同作用大为减弱。通过一维长岩心研究二元/三元体系各组分在线性流过程中吸附规律差异,然后制作二维平面物理模型研究三元复合驱径向流过程中各组分运移规律,判断出三者的协同作用距离,通过数值模拟以及矿场试验结果论证用变浓度多段塞代替单一段塞的可行性。研究表明：三元体系中由于碱的存在可以使超低界面张力保持距离和乳化能力强于二元体系,三元体系一维长岩心的采出程度比二元体系增加了6.32%;三元体系各组分协同作用距离集中在主流线1/2处,各组分运移距离为：聚合物〉碱〉表面活性剂,在后续水驱的过程中表面活性剂存在解吸附现象;使用变浓度多段塞组合注入,可以在保持相近采收率情况下减少15%的表面活性剂和4.5%的聚合物用量。 |
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| AbstractList | TE357; 三元复合驱中聚合物、碱以及表面活性剂的协同作用能够大幅提高原油采收率，各组分存在的色谱分离会使协同作用大为减弱。通过一维长岩心研究二元/三元体系各组分在线性流过程中吸附规律差异，然后制作二维平面物理模型研究三元复合驱径向流过程中各组分运移规律，判断出三者的协同作用距离，通过数值模拟以及矿场试验结果论证用变浓度多段塞代替单一段塞的可行性。研究表明：三元体系中由于碱的存在可以使超低界面张力保持距离和乳化能力强于二元体系，三元体系一维长岩心的采出程度比二元体系增加了6.32%；三元体系各组分协同作用距离集中在主流线1/2处，各组分运移距离为：聚合物>碱>表面活性剂，在后续水驱的过程中表面活性剂存在解吸附现象；使用变浓度多段塞组合注入，可以在保持相近采收率情况下减少15%的表面活性剂和4.5%的聚合物用量。 三元复合驱中聚合物、碱以及表面活性剂的协同作用能够大幅提高原油采收率,各组分存在的色谱分离会使协同作用大为减弱。通过一维长岩心研究二元/三元体系各组分在线性流过程中吸附规律差异,然后制作二维平面物理模型研究三元复合驱径向流过程中各组分运移规律,判断出三者的协同作用距离,通过数值模拟以及矿场试验结果论证用变浓度多段塞代替单一段塞的可行性。研究表明：三元体系中由于碱的存在可以使超低界面张力保持距离和乳化能力强于二元体系,三元体系一维长岩心的采出程度比二元体系增加了6.32%;三元体系各组分协同作用距离集中在主流线1/2处,各组分运移距离为：聚合物〉碱〉表面活性剂,在后续水驱的过程中表面活性剂存在解吸附现象;使用变浓度多段塞组合注入,可以在保持相近采收率情况下减少15%的表面活性剂和4.5%的聚合物用量。 |
| Abstract_FL | The synergy effect of polymer, alkali and surfactant in ASP flooding can enhance oil recovery significantly. How-ever, the synergy effect will be receded due to chromatographic separation. The differences of adsorption process in liner flow for different components in SP/ASP systems were investigated using the one-dimensional long core model. And the two-di-mensional physical model was made to study the radial flow regularity of each component during ASP flood. Then, the syner-gy distance of three components was determined. And the feasibility of using the variable concentration multi-slug to replace the single slug was studied by the numerical simulation and the pilot result. It is found that the distance of ultra-interfacial tension and the stability of emulsion during ASP flood are better than SP flood due to the alkali. The displacement efficient of ASP flooding is 6. 32% higher than that of SP flooding in one-dimensional long core flood experiments. Also, the ASP syner-gy distance is within the half of main streamline, and the removed distance of these components is: polymer>alkali>surfac-tant. The desorption can be observed when water is injected after ASP flooding. And the amount of surfactant and polymer can be greatly reduced down to 15% and 4. 5% respectively by using variable concentration multi-slug in the case of keeping similar recovery. |
| Author | 刘哲宇 李宜强 王晓光 楼仁贵 余昭艳 田坤 |
| AuthorAffiliation | 中国石油大学提高采收率研究院,北京102249 中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000 |
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| Author_FL | LI Yiqiang LOU Rengui TIAN Kun WANG Xiaoguang LIU Zheyu YU Zhaoyan |
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| DocumentTitleAlternate | Synergy effects of different components during ASP flooding |
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| Keywords | 色谱分离 协同距离 synergy distance multi-slug ASP flooding 多段塞 chromatographic separation emulsion 乳化 三元复合驱 |
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| Notes | ASP flooding;chromatographic separation;synergy distance;emulsion;multi-slug The synergy effect of polymer, alkali and surfactant in ASP flooding can enhance oil recovery significantly. However, the synergy effect will be receded due to chromatographic separation. The differences of adsorption process in liner flow for different components in SP/ASP systems were investigated using the one-dimensional long core model. And the two-di-mensional physical model was made to study the radial flow regularity of each component during ASP flood. Then, the synergy distance of three components was determined. And the feasibility of using the variable concentration multi-slug to replace the single slug was studied by the numerical simulation and the pilot result. It is found that the distance of ultra-interfacial tension and the stability of emulsion during ASP flood are better than SP flood due to the alkali. The displacement efficient of ASP flooding is 6. 32% higher than that of SP flooding in one-dimensional long core |
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| PublicationTitle | 中国石油大学学报（自然科学版） |
| PublicationTitleAlternate | Journal of China University of Petroleum |
| PublicationYear | 2016 |
| Publisher | 中国石油大学提高采收率研究院,北京,102249%中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依,834000 |
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| Snippet | 三元复合驱中聚合物、碱以及表面活性剂的协同作用能够大幅提高原油采收率,各组分存在的色谱分离会使协同作用大为减弱。通过一维长岩心研究二元/三元体系各组分在线性流过程... TE357; 三元复合驱中聚合物、碱以及表面活性剂的协同作用能够大幅提高原油采收率，各组分存在的色谱分离会使协同作用大为减弱。通过一维长岩心研究二元/三元体系各组分在线... |
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| SubjectTerms | 三元复合驱 乳化 协同距离 多段塞 色谱分离 |
| Title | 三元复合驱组分协同作用规律研究 |
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