Experimental Study on the Effect of ASP Flooding on Improving Oil Recovery in Low Permeability Reservoirs Based on a Partial Quality Tool
Experimental Study on the Effect of ASP Flooding on Improving Oil Recovery in Low Permeability Reservoirs Based on a Partial Quality Tool
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基于部分质量工具的低渗透油藏三元复合驱提高采收率实验研究
DOI：
10.3390/pr8030296
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发表时间：
2020-03
期刊：
影响因子：
3.5
通讯作者：
Zhou Quan
中科院分区：
文献类型：
--
作者：
Huang Bin;Hu Xinyu;Fu Cheng;Zhou Quan
为解决高分子量碱/表面活性剂/聚合物（ASP）溶液在低渗透油藏中驱油效果差的问题，大庆油田采用偏质工具改善低渗透油藏驱油效果。在地层中，局部质量工具通过主动剪切作用降解聚合物，降低聚合物的分子量，提高与低渗透油层的匹配程度，提高采收率。为了研究部分质量工具改善驱油效果的能力，研究了高分子量ASP溶液与低渗透岩心的匹配程度，研究了质量控制工具改变分子量的能力。在此基础上，对偏质工具作用前后高分子ASP溶液的压力和驱油效果进行了实验研究。结果表明，分子量为1900 × 104和2500 × 104的三元复合体系在低渗透油藏中驱油效果较差。部分优质工具作用后，注入压力降低5.22MPa，采收率提高7.79%。部分质量工具剪切后的ASP溶液的注入压力低于相同分子量和浓度的ASP溶液不剪切时的注入压力，但采收率较低。综合来看，局部质量测井仪的使用能明显改善低渗透油藏的驱油效果。
In order to solve the problem of the poor oil displacement effect of high molecular weight alkali/surfactant/polymer (ASP) solution in low permeability reservoirs, Daqing Oilfield uses a partial quality tool to improve the oil displacement effect in low permeability reservoirs. In the formation, the partial quality tool degrades the polymer through active shearing action, reducing the molecular weight of the polymer, to improve the matching degree to the low permeability oil layer and the oil recovery. In order to study the ability of the partial quality tool to improve the oil displacement effect, the matching degree of high molecular weight ASP solution to low permeability cores is studied, and the ability of quality control tools to change the molecular weight is studied. Then, experimental research on the pressure and oil displacement effect of high molecular weight ASP solution before and after the actions of the partial quality tool is carried out. The results show that ASP solutions with molecular weights of 1900 × 104 and 2500 × 104 have a poor oil displacement effect in low permeability reservoirs. After the action of the partial quality tool, the injection pressure is reduced by 5.22 MPa, and the oil recovery is increased by 7.79%. The injection pressure of the ASP solution after shearing by the partial quality tool is lower than that of the ASP solution with the same molecular weight and concentration without shearing, but the oil recovery is lower. On the whole, the use of the partial quality tool can obviously improve the oil displacement effect in low permeability reservoirs.
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DOI：
10.3390/books978-3-0365-4376-5
发表时间：
1980-06
期刊：
--
影响因子：
--
作者：
H. K. V. Poollen
通讯作者：
H. K. V. Poollen
影响因子：
3.5
作者：
Harris Sajjad Rabbani;Yossra Osman;I. Almaghrabi;Mohammad Azizur Rahman;T. Seers
通讯作者：
Harris Sajjad Rabbani;Yossra Osman;I. Almaghrabi;Mohammad Azizur Rahman;T. Seers
影响因子：
3.6
作者：
Yongjun Guo;Yan Liang;Cao Miao;Rusen Feng;Z. Xinmin;Liu Huabing;Hu Jun
通讯作者：
Yongjun Guo;Yan Liang;Cao Miao;Rusen Feng;Z. Xinmin;Liu Huabing;Hu Jun
影响因子：
3.2
作者：
H. Zhong;Weidong Zhang;Jing Fu;Jun Lu;H. Yin
通讯作者：
H. Zhong;Weidong Zhang;Jing Fu;Jun Lu;H. Yin
影响因子：
3
作者：
Peng Chen;Linlin Wang;Sidun Zhang;Junqiang Fan;Song Lu
通讯作者：
Peng Chen;Linlin Wang;Sidun Zhang;Junqiang Fan;Song Lu