Studies on the Application of Chemical and Biological Viscosity Reduction Technology
Application of the chemistry-microbial methods,the heavy oil viscosity reduction experiment was conducted.Selection a single strain F-2 and hybrid strain F-23 as viscosity reduction agents,the effect of processing time,temperature,nutrient source and other factors on the viscosity reduction were investigated.The results show that the optimum processing time was 6d,temperature was 45℃,simultaneously needed to add nitrogen and phosphorus source.In this experimental conditions,the heavy oil viscosity eventually reduced to 116.45mPa·s,the rate of viscosity reduction increased to 99.15%,solidifying point reduced to 22.0℃,pour point margin of 5.5℃,which shown that complex viscosity reduction process could improve the properties of heavy oil,thus this technology could be used in heavy oil gathering and transportation.The follow-up experiment was also carried out to study the demulsification of wastewater treatment,select SP-169 as de-emulsifying agent,the best demulsification and viscosity reduction conditions were obtained through the orthogonal experiment were determined: the best temperature,processing time and adding amount were 30℃,20min and 100mg/L respectively,the rate of dehydration reached to 99.35%.
Heavy oil Chemistry viscosity reduction microbial viscosity reduction compound viscosity reduction Heavy oil degrading bacteria New technology
Yi Zhang Bo Fu Desheng Ma Qingxia Lin
Professor,State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration Engineer,Shengli Oil Field Bohai No.1 Well Drilling Company, Xianhe Town, Hekou District, Dongying, Senior Engineer, State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Expl
国际会议
北京
英文
269-278
2012-10-14（万方平台首次上网日期，不代表论文的发表时间）