纳米铜催化裂解剂的制备及降黏效果评价  

Preparation and viscosity reduction effect evaluation of nano copper catalytic cracking agent

作　　者：甘衫衫 孙新革[1] 刘家林[2] 刘仕杰 李恒双[1] GAN Shan-shan;SUN Xin-ge;LIU Jia-lin;LIU Shi-jie;LI Heng-shuang(Xinjiang Oilfield Branch of PetroChina,Kelamayi 83400,China;Liaohe Oilfield Branch of PetroChina,Panjin 124010,China)

机构地区：[1]中国石油新疆油田分公司,新疆克拉玛依834000 [2]中国石油辽河油田分公司,辽宁盘锦124010

出　　处：《化学工程师》2023年第11期48-52,27,共6页Chemical Engineer

基　　金：中石油科技项目(2021DJ1402):蒸汽驱/SAGD中后期多介质注汽开发技术研究。

摘　　要：采用微乳液法合成纳米铜催化裂解剂,以辽河杜813、新疆重45、渤海5-2N超稠油为研究对象,开展超稠油催化裂解改质实验,在180~250℃、反应时间为24h,纳米铜质量分数为0.35%~0.5%、供氢剂用量为10%时,可以使超稠油原油黏度降低85%~90%。利用气相色谱仪、棒状薄层色谱仪、红外分析仪等对反应前后原油的物性分析结果表明,纳米铜催化裂解反应后,超稠油的轻质组分明显增加,主峰碳前移;裂解后芳烃、饱和烃增加,胶质和沥青质减少;反应后富氢程度参数及含氧度程度参数大幅提高,实现了大幅度改质降黏效果。同时研究了纳米铜用量、纳米铜粒径、温度等对超稠油催化改质的影响,为热采与纳米铜催化裂解剂协同作用实现改质降黏及降低开发成本提供技术支持。Synthesis of nanometer copper catalytic cracking agent by micro emulsion method,catalytic cracking and upgrading experiments were conducted on extra-heavy crude oil with three oilfield in taking Liaohe Du813,Xinjiang Zhong 45,and Bohai 5-2N ultra heavy oil research objects.When the reaction temperature was 180~250℃,the reaction time was 24h,the mass fraction of nanocopper was 0.35%~0.5%,and the mass fraction of hydrogen donors was 10%,the viscosity of extra-heavy crude oil could be reduced by 85%~90%.Through total hydrocarbon gas chromatography,family composition analysis and infrared spectroscopy of crude oil,the lightweight composition of the cracked crude oil was found to have increased,saturated hydrocarbons and aromatic hydrocarbons increased significantly,and asphaltenes decreased,demonstrating significant upgrading and viscosity reduction.After cracking,the viscosity of crude oil was irreversible.In addition,the effects of nanocopper dose,nanocopper particle size and temperature on the catalytic upgrading of extra-heavy oil were explored to provide technical support for the synergistic effect of thermal recovery and nano copper catalytic cracking agent to achieve upgrading and viscosity reduction,and reduce development costs.

关 键 词：纳米铜 原油裂解 改质降黏 加氢裂解 

分 类 号：TE357[石油与天然气工程—油气田开发工程]