Xinjiang Oil & Gas ›› 2026, Vol. 22 ›› Issue (1): 97-106.DOI: 10.12388/j.issn.1673-2677.2026.01.011

• OIL AND GAS DEVELOPMENT • Previous Articles     Next Articles

Research on Construction and Properties of a Foaming Complex Containing Sodium Cocoyl Glycinate for Gas Well Drainage

DONG Sanbao1，2，YAN Yao1，LI Jinhua1，MA Chao3，4，CHEN Jiakui1，REN Zhenyu1，HAN Weiwei1，2   

  1. 1. College of Chemistry and Chemical Engineering，Xi'an Shiyou University，Xi'an 710065，Shaanxi，China；2. Shaanxi University Engineering Research Center of Oil and Gas Field Chemistry，Xi'an Shiyou University，Xi'an 710065，Shaanxi，China；3. School of Petroleum Engineering，Yangtze University，Wuhan 430100，Hubei，China；4. Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering （Yangtze University），Wuhan 430100，Hubei，China
  • Received:2025-10-11 Revised:2025-12-18 Accepted:2025-12-19 Online:2026-03-10 Published:2026-03-10

椰油酰甘氨酸钠泡排剂体系构建及性能研究

董三宝1，2，晏瑶1，李金华1，马超3，4，陈家魁1，任振宇1，韩薇薇1，2   

  1. 1.西安石油大学化学化工学院，陕西西安  710065；2.西安石油大学油气田化学陕西省高校工程研究中心，陕西西安  710065；3.长江大学石油工程学院，湖北武汉  430100；4.油气钻采工程湖北省重点实验室（长江大学），湖北武汉  430100
  • 作者简介:董三宝（1988-），2018年毕业于中国石油大学（华东）油气田开发工程专业，博士，副教授，主要从事油田化学、表面活性剂和提高采收率的研究。（E-mail）dongsanbao@xsyu.edu.cn
  • 基金资助:
    国家自然科学基金青年项目“输气管线中天然气水合物壁面沉积层失稳脱落机制研究”（52204046）；西安市科技计划项目—高校院所人才服务企业项目“新型耐温耐盐耐油超分子泡排剂体系构筑及泡沫特性调控机制研究”（23GXFW0078）；陕西省教育厅科学研究计划服务地方专项—产业化培育项目“陕北致密油藏CO2响应清洁压裂液体系构筑及应用基础研究”（24JC076）；油气钻采工程湖北省重点实验室开放基金资助项目“智能响应型泡排剂体系构筑及其泡沫特性调控机理研究”（YQZC202413）。

PDF (PC)

Abstract: For liquid-loading gas wells，applications of high-performance foaming complexes are key to successful foam-assisted removal of water accumulating in gas wells. Therefore，in this paper，we developed a gemini cationic surfactant （CAGB） and combined it with sodium cocoyl glycinate （SCG） and a short-chain fluorocarbon surfactant FS-50 to form an excellent ternary foam drainage formulation tolerant of salts and gas condensate. Experimental results showed that with the CAGB/SCG/FS-50 molar ratio of 4∶16∶5 and a total concentration of 25 mmol/L，the foam volume and half-life time were optimized up to 455 mL and 20.45 min，respectively. After adding rhamnose，the foam volume and half-life were 405 mL and 74.09 min，respectively. The liquid carrying tests showed that a certain amount of condensate and methanol can enhance the liquid carrying performance of the foaming formulation. The liquid-carrying rate reached 45.94% in the case of the condensate content of 50%，and the foam formulation could withstand up to 60% condensate. Methanol also promoted the liquid-carrying performance. When the methanol content was 20%，the liquid-carrying rate could be increased to 44.69% and it remained high even at the methanol content of 60%. The addition of rhamnose allowed the ternary foaming formulation to maintain stable liquid-carrying capability at a salinity of 410 g/L，with a liquid-carrying rate of 32.35%. Elevated temperature is in favor of improving the liquid-carrying capability of the ternary foaming formulation，and the liquid-carry rate was high up to 69.11% at 90 ºC. Finally，surface tension tests and foam morphological observations also confirmed the synergistic effect of the components of the foaming formulation.

Key words: water drainage gas production, sodium cocoyl glycinate, rhamnose, foaming performance, liquid carrying rate

摘要： 针对水淹气井，选用高性能气井泡排剂是成功进行泡沫排水采气作业的关键。合成了一种Gemini阳离子表面活性剂（CAGB），将其与椰油酰甘氨酸钠（SCG）以及短链氟碳表面活性剂FS-50复配，构建出一种具有优异耐盐、耐凝析油性的三元泡排体系。经测试，当CAGB/SCG/FS-50的物质的量之比为4∶16∶5，总量为25 mmol/L时，起泡体积和泡沫半衰期最佳，分别达455 mL和20.45 min。加入鼠李糖后起泡体积和半衰期分别为405 mL、74.09 min。经携液测试发现，一定含量凝析油和甲醇可提升泡排剂体系携液性能，凝析油含量为50%时，携液率高达45.94%，最高能耐受60%的凝析油；甲醇含量为20%时可将携液率提至44.69%，甲醇含量为50%时仍具有较高的携液能力。鼠李糖可使三元泡排体系在矿化度为410 g/L时仍能稳定携液，携液率为32.35%；升高温度有利于提升该三元泡排体系携液能力，90 ℃时携液率高达69.11%。最后，经过表面张力测试、泡沫微观结构观察也证实了三组分间存在协同效应。

关键词: 排水采气, 椰油酰甘氨酸钠, 鼠李糖, 发泡性能, 携液率

CLC Number: 

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