| 聚合物表面活性剂与油藏匹配性及液流转向能力研究 |
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| 引用本文： | 王伟,崔丹丹,严曦,胡南,庄永涛,苑光宇,闫云贵,王欢. 聚合物表面活性剂与油藏匹配性及液流转向能力研究[J]. 特种油气藏, 2021, 28(1): 111-117. DOI: 10.3969/j.issn.1006-6535.2021.01.016 |
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| 作者姓名： | 王伟 崔丹丹 严曦 胡南 庄永涛 苑光宇 闫云贵 王欢 |
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| 作者单位： | 中国石油大港油田分公司,天津 300280 |
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| 基金项目： | 国家油气重大专项“ 高含水油田提高采收率新技术”(2016ZX05010-004-004) |
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| 摘 要： | 为研究聚合物表面活性剂(聚表剂)与聚合物增黏、抗盐和驱油能力差异大的原因,采用FT-IR谱、SEM电镜表征两者的分子结构和聚集形态,通过岩心物理模拟实验与核磁共振技术分析两者的注入性、传导性、液流转向和驱油能力.结果表明:聚表剂因存在网状聚集体结构,相同质量浓度(500～2 000 mg/L)的聚表剂黏度是聚合物的3～...
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| 关 键 词： | 聚合物表面活性剂 匹配性 物理模拟 核磁共振 提高采收率 液流转向 传导性 |
| 收稿时间： | 2020-04-29 |
Study on the Compatibility of Polymer Surfactant with Reservoirs and the Capability of Liquid Flow Diversion |
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| Wang Wei,Cui Dandan,Yan Xi,Hu Nan,Zhuang Yongtao,Yuan Guangyu,Yan Yungui,Wang Huan. Study on the Compatibility of Polymer Surfactant with Reservoirs and the Capability of Liquid Flow Diversion[J]. Special Oil & Gas Reservoirs, 2021, 28(1): 111-117. DOI: 10.3969/j.issn.1006-6535.2021.01.016 |
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| Authors: | Wang Wei Cui Dandan Yan Xi Hu Nan Zhuang Yongtao Yuan Guangyu Yan Yungui Wang Huan |
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| Affiliation: | PetroChina Dagang Oilfield Company, Tianjin 300280, China |
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| Abstract: | In order to study the reasons for the great differences in viscosity, salt resistance and oil displacement efficiency between polymer surfactant and polymer, FT-IR spectrogram and scanning electron microscope (SEM) were used to characterize the molecular structure and aggregation morphology of polymer surfactant and polymer. The injectivity, conductivity, fluid diversion and oil displacement efficiency of polymer surfactant and polymer were analyzed by core physical simulation experiment and nuclear magnetic resonance technology. The results show that the viscosity of the polymer surfactant with the same mass concentration (500 to 2,000 mg/L) was 3 to 4 times that of the polymer due to the presence of a reticular aggregate structure; the improvement by the polymer surfactant to the reservoir seepage profile was up to 79.3%, while the improvement by the polymer was only 63.9%; in the medium-high permeable reservoirs, the final recovery present of the polymer displacement was 6.36 Percentages higher than that of the polymer displacement. This study plays an important theoretical guiding role in the application of polymer surfactant as a new displacement agent for greatly improving recovery efficiency in medium-high permeable reservoirs with high water cut and high recovery percent. |
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| Keywords: | polymer surfactant compatibility physical simulation nuclear magnetic resonance improve the recovery efficiency fluid diverting conductivity |
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