新型表面活性剂作为油气田酸化缓蚀剂的制备及其性能研究
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王鼎立, 李勇明, 蒋立明, 陈波, 骆昂
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Performance of Two New Surfactants as Acidizing Inhibitors for Oil and Gas Fields
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WANG Dingli, LI Yongming, JIANG Liming, CHEN Bo, LUO Ang
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表2 两种缓蚀剂极化曲线拟合结果
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Table 2 Fitting results of potentiodynamic polarization curves of DEER and DEOD inhibitor
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| Inhibitor | C mmol/L | EcorrVSCE | IcorrmA·cm-2 | βamV·dec-1 | βc mV·dec-1 | η% |
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| DEER | Blank | -0.406 | 1.461 | 76.04 | -175.2 | --- | | 12 | -0.374 | 0.107 | 91.04 | -163.6 | 92.7 | | 14 | -0.389 | 0.086 | 91.91 | -166.5 | 94.1 | | 16 | -0.379 | 0.049 | 92.22 | -173.2 | 96.7 | | 18 | -0.373 | 0.028 | 84.15 | -163.6 | 98.1 | | 20 | -0.384 | 0.021 | 85.12 | -174.3 | 98.6 | | DEOD | Blank | -0.406 | 1.461 | 76.04 | -175.2 | --- | | 12 | -0.345 | 0.127 | 85.11 | -195.8 | 91.3 | | 14 | -0.357 | 0.096 | 93.22 | -180.6 | 93.4 | | 16 | -0.348 | 0.077 | 97.15 | -191.9 | 94.7 | | 18 | -0.354 | 0.041 | 98.10 | -194.1 | 97.2 | | 20 | -0.359 | 0.032 | 94.16 | -187.7 | 97.8 |
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