Synergistic mechanism of betaine surfactant and fly ash stabilized foam

被引：1

作者：

Ge J. ^{[1
]}

Liu Z. ^{[2
]}

Li L. ^{[1
]}

Wang E. ^{[3
]}

机构：

[1] School of Petroleum Engineering, China University of Petroleum (East China), Qingdao

[2] Petroleum Engineering Technology Research Institute of Shengli Oilfield Company, SINOPEC, Dongying

[3] No. 1 Oil Production Plant, PetroChina Xinjiang Oilfield Company, Karamay

来源：

Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) | 2023年 / 47卷 / 03期

关键词：

fly ash; plugging performance; stability mechanism; three-phase foam;

D O I：

10.3969/j.issn.1673-5005.2023.03.014

中图分类号：

学科分类号：

摘要：

Hydroxysulfobetaine surfactants with different length of carbon chain were used as foaming agent and fly ash particles with different particle sizes were used as foam stabilizer. The foaming system composed of 0. 4% foaming agent and 1% fly ash with median particle size of 6. 879 μm was determined by Waring Blender mixing method. Turbidimeter and rheometer were used to study the suspension performance of fly ash and the viscosity of different foam systems. The surface tension and interfacial viscoelasticity of the system were obtained by K100 surface tension meter and droplet shape analyzer. It is found that the volume of the three-phase foam at 90 ℃ is 275 mL, and the defoaming half-life is 205 min. Although the addition of fly ash slightly increases the surface tension of the system, it significantly improves the surface dilatational modulus. Under the same observation time, the three-phase foam has a lower coefficient of non-uniformity and a smaller median diameter than the pure surfactant foam, thereby reducing the liquid drainage and air permeability of the liquid membrane. The residual resistance coefficient of two-phase foam is 36. 23, and the residual resistance coefficient of three-phase foam is as high as 112. 53. © 2023 University of Petroleum, China. All rights reserved.

引用

页码：122 / 131

页数：9

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