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本文介绍了一种注蒸汽条件下利用供氢体添加剂 (四氢化萘 )进行超稠油井下改质的方法。用间歇式实验室反应器和连续式实验室试验装置( 2 80～ 315℃ ,反应时间 2 4～ 64h)进行的物理模拟实验表明 ,与最初的原油相比 ,被处理的超稠油API重度至少上升了 3°,粘度降低到原来的 ,沥青质含量大约降低了 8%。业已发现 ,天然地层 (催化剂 )及甲烷 (天然气 )的存在对提高改质原油的特性必不可少。进行的组分热数值模拟结果表明 ,在所研究的各种条件下 ,计算得出的和实验得出的改质原油的API重度值之间匹配良好 (平均相对误差 1%～4 % )。用改质原油的沥青质含量 ( 14%～ 2 3% )、大于 5 0 0℃馏分油的转换百分比 ( 12 % )及四氢化萘( 16%～ 2 3% )也得出相似的结果
In this paper, a method for downhole reforming of extra heavy oil using hydrogen donor (tetralin) under steam injection conditions is presented. Physical simulation experiments using batch laboratory reactors and continuous laboratory test equipment (2 80-315 ° C, reaction time 24-464 h) showed that compared with the original crude oil, the treated heavy oil API had a higher degree of severeness At least a 3 ° rise in viscosity leads to a reduction in asphaltenes of about 8%. It has been found that the presence of natural formations (catalysts) and methane (natural gas) are essential to improving the properties of upgraded crudes. The results of the numerical simulations of the component heats show good agreement between the calculated and experimental API gravity values for the modified crudes (average relative error 1% -4%) under the various conditions studied. Similar results were obtained with the asphaltene content (14% -23%) of upgraded crudes, the percent conversion of distillates larger than 500 ° C (12%), and tetralin (16% -23%)