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首页> 外文会议>SPE Asia Pacific improved oil recovery conference (APIORC 01) >Emulsification Characteristic and De-emulsifiers Action for Alkaline/Surfactant/Polymer Flooding
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Emulsification Characteristic and De-emulsifiers Action for Alkaline/Surfactant/Polymer Flooding

机译：碱性/表面活性剂/聚合物驱的乳化特性和反乳化剂作用

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By analyzing the continuous field tracking tests on the ASPrncombination flood crude oil emulsions, It was found that therernare three types of crude oil emulsion by microscopernequipment. They are water-in-oil emulsion (w/o type), oil-inwaterrnemulsion (o/w type) and multiple emulsion (o/w/o type).rnDifferent emulsions are produced at different times, and fluidsrnof different water ratios are being produced. A relatively easyrnemulsification between alkaline and crude oil is due to thernformation of in-situ surface-active agents from the reaction ofrnalkali and the materials in the crude oil. Low concentration ofrna surfactant, ORS-41 easily forms a w/o emulsion, but an o/wrnemulsion is formed in 0.3% wt ORS-41 solution.rnThe effect of de-emulsifiers on interfacial tensions, surfacernpressure and membrane strength concludes that the deemulsifierrnenters into the interface and take the place of thernadsorbed ORS-41 molecules or some other surface activernmaterials at the interface. Experiments show that not only canrnthe de-emulsifier lower the interfacial tensions of binaryrnsystem (HPAM + NaOH), but it can also raise the interfacialrntensions of the synthetic liquid system. The surface pressurernresults show that the de-emulsifier molecules replaced arnportion of the surfactant. The de-emulsifier action mechanismrnis partial replacement of the interfacial active materials andrnlowering of the interfacial film strength.
机译：通过对ASPrn组合驱油原油乳状液的连续场跟踪测试，通过显微镜设备发现了三种类型的原油乳状液。它们是油包水型乳液（W / O型），油水包水型乳液（O / W型）和多重乳液（O / W / O型）。rn在不同的时间生产不同的乳液，流体的水比不同正在生产。碱性和原油之间相对较容易的乳化作用是由于烷烃和原油中原料的反应形成了原位表面活性剂。低浓度的表面活性剂ORS-41容易形成w / o乳状液，但在0.3％wt的ORS-41溶液中会形成o / w乳状液。并在界面处代替被吸附的ORS-41分子或其他一些表面活性物质。实验表明，破乳剂不仅可以降低二元体系（HPAM + NaOH）的界面张力，而且可以提高合成液体系的界面张力。表面压力结果表明，反乳化剂分子取代了表面活性剂的一部分。破乳剂作用机理是界面活性材料的部分替代，降低了界面膜的强度。

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