提高孤六联稠油脱水效率破乳增效剂开发及应用效果

Development and Application of Demulsifier Synergist to Improve Dehydration Efficiency of Guliulian Heavy Oil

许浩伟 高生伟 王芷寒 初伟 高成元 张锡波

XU Haowei GAO Shengwei WANG Zhihan CHU Wei GAO Chengyuan ZHANG Xibo

中国石油化工股份有限公司胜利油田分公司孤岛采油厂，山东东营　257231 北京化工大学化学学院，北京　100029 中国石油化工股份有限公司胜利油田分公司石油工程技术研究院，山东东营　257000 山东省稠油开采技术重点实验室，山东东营　257000

Gudao Oil Production Plant, Shengli Oilfield Company, SINOPEC, Dongying Shandong 257231, China College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China Research Institute of Petroleum Engineering and Technology, Shengli Oilfield Company, SINOPEC, Dongying Shandong 257000, China Shandong Key Laboratory of Heavy Oil Production Technology, Dongying Shandong 257000, China

随着稠油开采规模逐步加大，孤六联稠油采出液破乳脱水难度增大，依靠提升脱水温度进行脱水大大增加了能耗，常规的聚氧乙烯、聚氧丙烯醚类非离子破乳剂对孤六联稠油脱水速度偏慢，最终脱水率偏低，严重影响了孤六联的正常生产。通过研制投加提高破乳剂脱水速度和最终脱水率的破乳增效剂，在55℃条件下可提高破乳剂脱水速度1倍以上，降低了原料油含水率，提高了加热效率。孤六联稠油采出液破乳脱水效率大幅提升，现场应用取得明显效果。

With the increase of heavy oil production scale, the problem of oil-water separation is becoming more and more serious. The energy consumption is greatly increased by improving the dehydration temperature. Conventional non-ionic demulsifiers, such as polyoxyethylene and polyoxypropylene ether are slow in dehydration of heavy oil, and the final dehydration rate is low. By adding demulsifier synergist to improve the dehydration speed and final dehydration rate of demulsifier, the dehydration speed of demulsifier will be greatly increased by more than 1 time at 55 °C, water content of raw oil will be reduced and heating efficiency will be improved under the condition of lower temperature. The dehydration efficiency of Guliulian heavy oil is greatly improved, which meets the field production requirements.

https://doi.org/10.3969/j.issn.1008-2336.2020.03.055