Bio-Inspired Superhydrophobic Interface of Nano-Gaseous Film for Reducing Injection Pressure in Oil Reservoirs
Bio-Inspired Superhydrophobic Interface of Nano-Gaseous Film for Reducing Injection Pressure in Oil Reservoirs
复制标题
用于降低油藏注入压力的仿生超疏水纳米气膜界面
DOI：
10.1016/j.cej.2022.140393
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发表时间：
2022-11
影响因子：
15.1
通讯作者：
Caili Dai
中科院分区：
文献类型：
--
作者：
Zhongzheng Xu;Mingwei Zhao;Yiming Zhang;Pan Wang;Yining Wu;Lin Li;Xin Cui;Ning Sun;Caili Dai
受“荷花效应”启发的超疏水润湿性在自然界中是一个有趣的性质，但在油田开发中很少应用。超疏水纳米材料可以通过改变岩心表面的性质，有效地解决低渗透油田注水压力高、注水不足的问题，对低渗透油田的开发具有重要意义。在这里，我们报道了一种新型的超疏水纳米粒子(SHNP)，通过简单的氟化长链修饰，并通过复合表面活性剂成功制备了稳定的纳米流体。所制备的SHNP纳米流体具有良好的减阻效果，在相同条件下的减阻率是传统纳米流体的1.35倍。SHNPs聚集在磁芯表面，形成大量的微/纳米结构，可以有效地降低磁芯的表面粗糙度。PIV实验结果表明，与注入纯水相比，注入SHNPs纳米流体后，后续水驱中心的中心流速提高了98.27%(注入NPs后流速降低了53.45%)。此外，气泡探针AFM技术已经成功地表明，气泡可以通过SHNPs的超疏水界面被捕获，形成气态薄膜。利用气膜的阻挡效应，将液-固界面转化为液-气-固界面，从而减小了液-固直接接触所产生的大阻力。这种改性简单、成本低的SHNPs在油田开发中具有广阔的应用前景。
Superhydrophobic wettability inspired by the “lotus effect” is an intriguing property in nature, but it is rarely applied in oilfield development. Superhydrophobic nanomaterials can effectively solve the problem of “high injection pressure and insufficient water injection” in low permeability oilfields by changing the properties of the core surface, which is of great significance to the development of low permeability oilfields. Herein, we report a novel type of superhydrophobic nanoparticle (SHNP) simply modified by fluorinated long chains, and a stable nanofluid is successfully prepared by compounding surfactant. The prepared SHNP nanofluid has an excellent core drag reduction effect, and the drag reduction rate is 1.35 times that of conventional NPs under the same conditions. The SHNPs assemble on the core surface to form a large number of micro/nanorough structures, which can effectively reduce the surface roughness of the core. The PIV experimental results show that compared with the injection of pure water, the center flow velocity in the subsequent water flooding center increases by 98.27% after the injection of SHNPs nanofluid (the flow velocity decreases by 53.45% after the injection of NPs). Moreover, bubble probe AFM technology has successfully shown that bubbles can be captured through the SHNPs superhydrophobic interface to form a gaseous film. By using the barrier effect of the gaseous film, the liquid–solid interface is converted to a liquid–gas-solid interface, thereby reducing the large resistance caused by the direct contact between the liquid and solid. Such SHNPs with simple modification and low cost have broad application potential in oilfield development.
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影响因子：
56.9
作者：
K. Krieger
通讯作者：
K. Krieger
影响因子：
15.1
作者：
Guang Zhao;Caili Dai;Chenglin Gu;Q. You;Yongpeng Sun
通讯作者：
Guang Zhao;Caili Dai;Chenglin Gu;Q. You;Yongpeng Sun
DOI：
10.2118/165360-ms
发表时间：
2013-04
期刊：
--
影响因子：
--
作者：
R. Aguilera
通讯作者：
R. Aguilera
影响因子：
3.7
作者：
Martell, Michael B.;Perot, J. Blair;Rothstein, Jonathan P.
通讯作者：
Rothstein, Jonathan P.
受贻贝启发的超亲水膜构建在亲水聚合物网络上，用于高效油/水分离
影响因子：
9.9
作者：
Xu, Zhongzheng;Li, Lin;Zeng, Hongbo
通讯作者：
Zeng, Hongbo