塔河油田酸化油破乳技术研究

塔河油田酸化油破乳困难，其影响因素主要为采出液中的残余药剂、固体颗粒以及原油自身胶质、沥青质含量。针对上述影响因素开展了酸化油破乳技术研究，分别开发了性能优良的破乳剂、润湿剂、中和剂以及水洗、电场等配套处理技术，形成了塔河油田酸化油破乳脱水处理工艺。试验结果表明，酸化油经水洗预处理后既可以减少药剂用量，又能给后续化学破乳提供良好的环境，同时有利于电脱水器的平稳运行，经后续化学破乳技术、静电场脱水技术处理后原油含水率低于1%，处理效果满足现场需求。

DEMULSIFICATION TECHNOLOGY FOR EMULSIFIED CRUDE OIL FROM ACIDIZING WELLS IN TAHE OILFIELD

Studies indicated that the reason for demulsion difficulty of Tahe emulsified crude oil was closely related to residual chemicals, solid particles, resins and asphaltenes in the crude oil. Therefore, we developed a demulsifying technology were for the crude, including excellent performance chemicals, such as demulsifiers, wetting agents, and neutralizer as well as the supporting treatment technologies of washing and electrostatic field. The results show that the washing pretreatment of oil could reduce the dosing of chemicals and provide a lower load for the subsequent process, and benefits for the smoothly running of electric dehydrator. After washing, the subsequent chemical demulsification and electrostatic dehydration technologies can reduce the water content to less than 1%, satisfied with the requirement of Tahe oilfield.