复配菌优化培养及其在原油中的应用研究  

Research on the Optimum Culture Conditions of the Compound Bacteria and Its Application in Crude Oil

作　　者：王卫强[1] 崔静 丁影影 张海娟[1] 王国付[1] 罗超 WANG Wei-Qiang;CUI Jing;DING Ying-Ying;ZHANG Hai-Juan;WANG Guo-Fu;LUO Chao(College of Petroleum Engineering,Liaoning Shihua University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油天然气工程学院

出　　处：《工程热物理学报》2019年第12期2837-2842,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金青年科学基金项目(No.51804153);辽宁省科技厅项目(No.20180550745)

摘　　要：微生物除蜡、降黏技术因高效、经济、无毒、无污染的优点,被广泛研究和采纳。本论文主要研究了嗜蜡菌SL-7以及用BH-12进行复配制成微生物菌剂SB7-12的除蜡、降黏研究。实验结果表明:优化后的复配菌SB7-12对原油具有降黏与除蜡双重功效,对原油中石蜡的降解率达83.3%,降黏率可达到43.3%。显微镜结果表明,微生物菌剂的加入使原油中微观蜡晶结构呈现出小而分散的特点,表观黏度降低,从而有利于提高原油流动性。Because of the advantages of high efficiency,economy,non-toxic and pollution-free,microbial wax removal and viscosity reduction technology has been widely studied and adopted.In this paper,the technology of removing wax and reducing viscosity efficiency was studied by using bacterium SL-7 and SB7-12 from a strain compound BH-12.The experimental results showed that the compound bacteria SB7-12 has double effect on viscosity reduction and dewaxing in crude oil.The degradation rate of paraffin in viscous crude oil reached 83.3%,and the viscosity reduction rate was43.3%.The microscope results showed that heavy oil micro wax crystal structure shows a small and dispersive characteristic after compound inoculant SB7-12 treatment.Thus,the apparent viscosity decreased,which was beneficial to improve the mobility of heavy oil.

关 键 词：原油 复配菌 除蜡 降黏 蜡晶形态 

分 类 号：TE832[石油与天然气工程—油气储运工程]