摘要
为开发安全、高效的萃取剂,满足油田安全生产要求,探索了利用疏水性低共熔溶剂(DES)萃取处理油基岩屑的可行性。首先,利用搅拌萃取优选了构成DES的氢键供体和氢键受体及两者的组成比例;然后,以萃取后的岩屑含油量为指标,分别对搅拌萃取、超声波萃取和微波萃取进行了工艺优化。结果表明,萃取性能最佳的DES为物质的量之比为0.8∶1的月桂酸和麝香草酚组合。3种萃取工艺中超声波萃取处理油基岩屑的工艺条件相对温和,萃取后岩屑含油量可降至1%以下。推荐超声波萃取条件为DES与油基岩屑质量比6∶1、超声时间30min、萃取温度40℃,此时岩屑含油量可降至0.88%。
In order to develop safe and efficient extractant and meet the requirement of safety production in oilfield,the feasibility of extracting oil-based drill cuttings by using hydrophobic deep eutectic solvent(DES)was investigated. Firstly,the hydrogen bond donor and hydrogen bond acceptor of DES were studied by stirring extraction. Then,taking the oil content of extracted drilling cuttings as the indicator,the processes of stirring extraction,ultrasonic extraction and microwave extraction were optimized. The experiment results showed that the best DES was the combination of lauric acid and thymol with the molar ratio of0.8∶1. Among the three extraction processes,the ultrasonic extraction process was relatively mild. The oil content of the extracted cuttings could be reduced to less than 1%. The specific process was recommended as follows:6∶1 the mass ratio of DES and oil-based drill cuttings,30 min ultrasonic extraction time,and 40 ℃ extraction temperature. Under this condition,the oil content of cuttings could be reduced to 0.88%.
作者
张鼎
唐培林
张琳婧
张益臣
宋英发
方申文
ZHANG Ding;TANG Peilin;ZHANG Linjing;ZHANG Yichen;SONG Yingfa;FANG Shenwen(College of Chemistry and Chemical Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,P R of China;Quality,Health,Safety and Environmental Protection Department of Zhejiang Oilfield Company,Hangzhou,Zhejiang 310023,P R of China;Natural Gas Exploration and Development Division of Zhejiang Oilfield Company,Luzhou,Sichuan 646400,P R of China;Southwest Gas Production Plant of Zhejiang Oilfield Company,Yibin,Sichuan 645250,P R of China)
出处
《油田化学》
CAS
CSCD
北大核心
2022年第4期717-721,共5页
Oilfield Chemistry
基金
中国石油-西南石油大学创新联合体科技合作项目“钻井固体废弃物绿色、安全资源化利用技术研究”(项目编号2020CX020000)。
关键词
油基岩屑
低共熔溶剂
萃取
超声波
oil-based drill cuttings
deep eutectic solvent
extraction
ultrasonic
