Investigation of a highly efficient foaming mixture compromising cationic Gemini-zwitterionic-anionic surfactants for gas well deliquification

IF 1.2 4区工程技术 Q4 CHEMISTRY, APPLIED

Tenside Surfactants Detergents Pub Date : 2024-03-04 DOI:10.1515/tsd-2023-2572

Weiwei Han, Hongmiao Lv, Jiabao Fan, Taotao Qiang, Chenwei Liu, Yue Ji, Sanbao Dong

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引用次数: 0

Abstract

Foamers with high resistance to condensate, salinity and high temperature play a crucial role in gas well deliquification. In this study, we developed an efficient foaming mixture containing a Gemini surfactant (CAGB), a betaine surfactant (CAPB) and sodium lauroyl glutamate (SLG), which exhibited excellent foaming performance (at a molar ratio of 3:3:4 and a dosage of 20 mmol L−1) with a foam volume of 440 mL and a half-life of 11 min. The optimized CAGB/CAPB/SLG mixture showed exceptional liquid unloading and foaming ability under high methanol (up to 40 vol.%) and condensate (up to 50 vol.%) content conditions. Trisodium aminotriacetate (NTA) facilitated the liquid unloading performance at a salinity of 90 g L−1. With 10 vol.% methanol, the liquid unloading rate of CAGB/CAPB/SLG foam at 90 °C could be increased to 90 %. Furthermore, surface tension and morphology analysis confirmed the presence of synergy within the CAGB/CAPB/SLG mixture in foaming, foam stabilizing and liquid unloading ability.

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研究用于气井脱胶的阳离子 Gemini-zwitterionic-anionic 表面活性剂高效发泡混合物

具有高抗凝结水、盐度和高温性能的发泡剂在气井脱液中发挥着至关重要的作用。在这项研究中，我们开发了一种含有双子表面活性剂（CAGB）、甜菜碱表面活性剂（CAPB）和月桂酰谷氨酸钠（SLG）的高效发泡混合物，该混合物表现出优异的发泡性能（摩尔比为 3:3:4，用量为 20 mmol L-1），泡沫体积为 440 mL，半衰期为 11 分钟。优化后的 CAGB/CAPB/SLG 混合物在甲醇（高达 40 Vol.%）和冷凝物（高达 50 Vol.%）含量较高的条件下显示出卓越的液体卸载和发泡能力。当盐度为 90 g L-1 时，氨基三乙酸钠（NTA）可促进液体卸载性能。在 10 Vol.% 甲醇的条件下，CAGB/CAPB/SLG 泡沫在 90 °C 下的液体卸载率可提高到 90%。此外，表面张力和形态分析证实了 CAGB/CAPB/SLG 混合物在发泡、泡沫稳定和液体卸载能力方面的协同作用。

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来源期刊

Tenside Surfactants Detergents 工程技术-工程：化工

CiteScore

1.90

自引率

10.00%

发文量

审稿时长

3.8 months

期刊介绍： Tenside Surfactants Detergents offers the most recent results of research and development in all fields of surfactant chemistry, such as: synthesis, analysis, physicochemical properties, new types of surfactants, progress in production processes, application-related problems and environmental behavior. Since 1964 Tenside Surfactants Detergents offers strictly peer-reviewed, high-quality articles by renowned specialists around the world.