不同电场形式下原油电脱水试验.doc

不同电场形式下原油电脱水实验 摘 要 原油脱水在原油生产加工过程中非常重要。如今油田进入高含水期开采阶段，油田普遍三次采油技术。这使原油导电性增强、粘度加大，脱水过程中电流大、电场不稳定，增加了脱水难度高效原油电脱水 本文对原油电脱水机理进行介绍，先讲述了原油乳化液是怎么形成的，在讲述乳化液的破乳，引出原油电脱水中的三种机理：电泳聚结原理、偶极聚结原理、振荡聚结原理。之后讲述了原油电脱水的电场类型和电场类型与聚结形式及脱水效果的关系。 为了研究不同电场类型下原油的脱水效果，围绕电脱水实验系统，开展了交流、直流、交直流叠加和高频脉冲电场作用下的原油脱水实验。实验结果显示，交流电场对含水率较高的乳化液有很好的效果，脱水电场稳定，能够提高脱水速度；直流电场适宜处理含水率较低的乳化液，可以对乳化液进行深度脱水；采用交直流叠加电场脱水时，可调节交直流比例。兼顾交直流的优点。高频脉冲电脱水的电场强度 关键词　实验；原油电脱水；不同电场；脱水率； Experiment on electric dehydration of crude oil under different electric field Abstract The dehydration of crude oil is very important in the process of crude oil production and processing. Oil field has entered the stage of high water cut stage, and the three oil recovery technology is widely used in oil field. This makes the oil conductivity and viscosity increase, the current in the process of dehydration is large, the electric field is not stable, increase the difficulty of dewatering. Therefore, we need to develop efficient crude oil dehydration methods and improve the traditional methods. 本文对原油电脱水机理进行介绍，先讲述了原油乳化液是怎么形成的，在讲述乳化液的破乳，引出原油电脱水中的三种机理：电泳聚结原理、偶极聚结原理、振荡聚结原理。之后讲述了原油电脱水的电场类型和电场类型与聚结形式及脱水效果的关系。 The crude oil electric dehydration mechanism are introduced, first about the crude oil emulsion is how, in telling the demulsification of emulsion, leads to the crude oil electric dehydration of three mechanisms: Electrophoresis poly elements, poly dipole elements, oscillation coalescence principle. After that, it describes the relationship between the electric field type of crude oil and the type of electric field and the form of coalescence and the effect of dehydration. 为了研究不同电场类型下原油的脱水效果，围绕电脱水实验系统，开展了交流、直流、交直流叠加和高频脉冲电场作用下的原油脱水实验。实验结果显示，交流电场对含水率较高的乳化液有很好的效果，脱水电场稳定，能够提高脱水速度；直流电场适宜处理含水率较低的乳化液，可以对乳化液进行深度脱水；采用交直流叠加电场脱水时，可调节交直流比例。兼顾交直流的优点。高频脉冲电脱水的电场强度、频率和占空比，都有最佳数值可以调节。 In order to study the dewatering effect of crude oil under different electric field types, the experiment system of electric dehydration was developed, and the experiment of crude oil