A Nanoparticle Adsorption‐Based Salt‐Resistant Foam for Gas Well Deliquification,Journal of Surfactants and Detergents

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A Nanoparticle Adsorption‐Based Salt‐Resistant Foam for Gas Well Deliquification
Journal of Surfactants and Detergents ( IF 1.6 ) Pub Date : 2020-09-02 , DOI: 10.1002/jsde.12459
Yang Wang _{1,

2} , Jiang Yang _{1,

2}

Affiliation

With the continuous development of gas fields, water production problems are seriously affecting production rates. Aiming at the problem of the high production rates of mineralized formation water in China's gas fields, we investigate the feasibility of a foam for gas well deliquification process using a combination of nanoparticles and surfactants. Through the combination of anionic and non‐ionic surfactants, a system with better foam stability is optimized by the hand‐shock method. Based on the formation of hydrogen bonds between the fatty alcohol polyoxyethylene ether and SiO₂ nanoparticles, the fatty alcohol polyoxyethylene ether created hydrophobicity after silica was added. Adsorbed on the gas–liquid interface, the dilatational modulus of the gas–liquid interface increased, the shift time extended, and the diameter of the generated foam is smaller, that is, a unit volume of gas can carry more liquid. Foam stability can be adjusted by altering the pH value of the foam for gas well deliquification. Last, the oil resistance of the system was improved by adding fatty alcohols. Here, a foam for gas well deliquification was established by the combination of surfactant, nanoparticles, and fatty alcohols, which has good foaming performance, stability, and oil resistance.

更新日期：2020-09-02

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