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改善岩芯润湿性能微乳剂的研制

Limei Guo,Yan Guo,Mingyue Cui, Zhiyong Zhang

Speciality Petrochemicals（2012）

Cited 1|Views4
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Abstract
通过紫外-可见分光光度法研究阳离子与非离子表面活性剂与岩芯间的吸附规律,研制出一种能改善岩芯澜湿性能的微乳剂.研究表明Gemini型阳离子表面活性剂吸附在亲水岩芯表面发生润湿反转；非离子型表面活性剂处理后岩芯仍保持亲水的润湿状况；二者以不同比例复配后,共同吸附在岩芯表面使岩芯呈现出不同的润湿性；与一定量助剂复配形成的微乳剂能够改善亲水岩芯的润湿状况为中性-弱亲水,明显降低工作液的表面张力,有助于工作液的返排,使地层免受工作液的伤害,达到油气井增产稳定的效果.
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Key words
Adsorption,Intermediate or weak water wet,Microemulsion,Surfactant,Wettability
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