Corrosion-inhibiting foam drainage agent for oil and gas wells and preparation method thereof
A foam drainage agent, technology for oil and gas wells, applied in chemical instruments and methods, earthwork drilling, wellbore/well components, etc. The effect of production and excellent anticorrosion, excellent corrosion inhibition performance and excellent foam discharge performance
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Embodiment 1
[0026] Corrosion-inhibiting foam drainage agent for oil and gas wells, composed of the following components in weight percentage: 40% oleic acid-based imidazoline quaternary ammonium salt, 5% dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl Base betaine 25%, alkylphenol polyoxyethylene ether 10%, water 20%; The preparation method of described corrosion-inhibiting foam drainage agent is as follows:
[0027] (1) Weigh oleic acid-based imidazoline quaternary ammonium salt, dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl betaine, alkylphenol polyoxyethylene ether and water according to the above weight percentage .
[0028] (2) Add water into the reaction kettle to keep the temperature at 60°C, then add dodecyldimethyl betaine under stirring, and then keep the temperature at 60°C after mixing;
[0029] (3) Add oleic acid-based imidazoline quaternary ammonium salt and dodecyl dimethyl benzyl ammonium chloride to the reactor in a stirring state, and react at ...
Embodiment 2
[0032] Corrosion-inhibiting foam drainage agent for oil and gas wells, composed of the following components in weight percentage: 35% oleic acid-based imidazoline quaternary ammonium salt, 10% dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl Base betaine 20%, alkylphenol polyoxyethylene ether 10%, water 25%; The preparation method of described corrosion-inhibiting foam drainage agent is as follows:
[0033] (1) Weigh oleic acid-based imidazoline quaternary ammonium salt, dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl betaine, alkylphenol polyoxyethylene ether and water according to the above weight percentage ;
[0034] (2) Add water into the reaction kettle to keep the temperature at 60°C, then add dodecyldimethyl betaine under stirring, and then keep the temperature at 60°C after mixing;
[0035] (3) Add oleic acid-based imidazoline quaternary ammonium salt and dodecyl dimethyl benzyl ammonium chloride to the reactor in a stirring state, and react at...
Embodiment 3
[0038] Corrosion-inhibiting foam drainage agent for oil and gas wells, composed of the following components in weight percentage: 20% oleic acid-based imidazoline quaternary ammonium salt, 10% dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl Base betaine 30%, alkylphenol polyoxyethylene ether 10%, water 30%; The preparation method of described corrosion-inhibiting foam drainage agent is as follows:
[0039] (1) Weigh oleic acid-based imidazoline quaternary ammonium salt, dodecyl dimethyl benzyl ammonium chloride, dodecyl dimethyl betaine, alkylphenol polyoxyethylene ether and water according to the above weight percentage ;
[0040] (2) Add water into the reaction kettle to keep the temperature at 60°C, then add dodecyldimethyl betaine under stirring, and then keep the temperature at 60°C after mixing;
[0041] (3) Add oleic acid-based imidazoline quaternary ammonium salt and dodecyl dimethyl benzyl ammonium chloride to the reactor in a stirring state, and react at...
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