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China Surfactant Detergent & Cosmetics ›› 2025, Vol. 55 ›› Issue (4): 495-507.doi: 10.3969/j.issn.2097-2806.2025.04.012

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Research progress of foam drainage agents for gas well deliquification

Jiabao Fan1,Weiwei Han1,*(),Yanqiang Liu2,Qiang Liu3,Hongmiao Lv1,Sanbao Dong1,4,*()   

  1. 1. College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an, Shaanxi 710065, China
    2. Xi’an Conservation Association, Xi’an, Shaanxi 710018, China
    3. The Supervision Center of the Tuha Oilfield Branch of CNPC (Oil and Gas Well Engineering Quality Supervision Station), Turpan, Xinjiang 838013, China
    4. Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering (Yangtze University), Wuhan, Hubei 430100, China
  • Received:2024-05-17 Revised:2025-03-24 Online:2025-04-22 Published:2025-04-28
  • Contact: E-mail: hanweiwei@xsyu.edu.cn (Weiwei Han); dongsanbao@xsyu.edu.cn (Sanbao Dong).

Abstract:

Foams are often employed as an efficient and cleaner method to remove the liquid accumulated at the bottom of gas wells and consequently promote the production of natural gas. In recent years, various foam drainage agents have been developed for gas well deliquification. In this review, the foaming and stabilizing mechanisms of foam drainage agents were introduced. Additionally, the characteristics and applicabilities of surfactants used as foam drainage agents were summarized. Various foam drainage agents constructed using different methods were comprehensively reviewed, including the foam drainage agents based on compounded surfactants, surfactant-nanomaterials/polymer, supramolecular interactions and stimuli-responsivity. Much effort has been focused on the mechanism of enhancing foam properties. Finally, the challenges and future development trend of foam drainage agents were also prospected.

Key words: drainage gas recovery technology, foam drainage agent, foam performance, development trend

CLC Number: 

  • TE357