催化氧化法在高黏度稠油降黏中的应用  

Application of catalytic oxidation for viscosity reduction of heavy oil

作　　者：崔波[1,2] 胡安水[1] 于殿伟 祁亚玲[2] 戴树高[3] 陈应琳[3] 

机构地区：[1]枣庄职业学院,山东枣庄277800 [2]青岛科技大学,山东青岛266042 [3]胜利油田东胜精攻石油开发集团股份有限公司,山东东营257000

出　　处：《工业催化》2010年第6期32-36,共5页Industrial Catalysis

摘　　要：催化氧化法降低高黏度稠油的黏度有利于油田井下高黏度稠油的开采。用催化剂催化过氧化氢分解,分解产生的热量和氧化剂分解原子氧使原油部分氧化产生二氧化碳和热量以及部分二氧化碳溶解在原油中放出的热量,使原油温度升高;剩余的二氧化碳对原油又产生了驱替作用,最终达到降低黏度、增加原油流动性和易于开采的目的。研究结果表明,以质量分数20%碘化钾溶液为催化剂,加入量为原油质量的1.8%,以含9%过氧化氢的双氧水为氧化剂,加入量为原油质量的5%,胜利油田提供的原油样品在反应时温度由50℃升高到68℃,黏度由18 000 mPa·s降至4 200 mPa·s,降黏率76.67%;以三价铁的络合物为催化剂,同样条件下,原油温度可升高12℃,反应延迟15 min。Catalytic oxidation process used for viscosity reduction of heavy oil is beneficial to the exploitation of heavy oil in oilfield. KI, FeCl3 and their mixture were used as catalysts, and H2O2 as the oxidant in the oxidation process. The heat came from decomposition of oxidant, partial oxidation of heavy oil and dissolution of partial carbon dioxide in heavy oil produced in the oxidation process, and increased the temperature of heavy oil. The residual carbon dioxide played a role of oil displacement agent in the process. The goal of viscosity reduction, fluidity improvement and easy exploitation of crude oil was attained finally. The results showed that the temperature of heavy oil was increased from 50 ℃ to 68 ℃, the viscosity was reduced from 18 000 mPa · s to 4 200 mPa · s, and the rate of viscosity reduction of 76.67% was obtained under the condition as follows： 20% KI dosage 1.8% of heavy oil mass and 9% H2O2 amount 5% of heavy oil mass; the temperature of heavy oil was increased 12℃ using Fe^3＋ complex as the catalyst under the same condition and reaction time was delayed for 15 min.

关 键 词：石油化学工程 过氧化氢 稠油热采 催化氧化法 稠油降黏 

分 类 号：TQ426.99[化学工程] TE345[石油与天然气工程—油气田开发工程]