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塔河超稠油掺重整重芳烃降黏实验研究
Experimental study on viscosity reduction of Tahe super-heavy oil blended with reforming heavy aromatics
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- DOI:
- 作者:
- 李小雨，唐晓东，郑存川，李晶晶
Li Xiaoyu，Tang Xiaodong，Zheng Cunchuan，Li Jingjing
- 作者单位:
- 西南石油大学化学化工学院，四川 成都 610500
School of Chemistry and Chemical Engineering，Southwest Petroleum University，Chengdu 610500，China
- 关键词:
- 塔河超稠油；重整重芳烃；塔河稀油；掺稀降黏
Tahe ultra heavy oil；reforming heavy aromatic hydrocarbons；Tahe thin oil；dilution and viscosity reduction
- 摘要:
- 摘要：针对炼油厂重整重芳烃大量过剩、加工难度大的问题，结合稠油掺稀降黏开采掺稀比高、稀油资源紧缺的现状，将重整重芳烃用于超稠油掺稀降黏研究。在相同掺稀比0.10时，塔河稀油、重整重芳烃的降黏率分别为 68.45%和 92.00%；拟合计算表明，重整重芳烃的用量仅为稀油的36.20%时，即可达到塔河油田稠油掺稀降黏要求。以塔河油田稠油自喷井为例，在稠油含水率为0%~50%时，以塔河油田掺稀油产油总量200×104 t/a为基准，取平均掺稀比为1，年增油率可达 49.79%~71.09%。在稠油含水率 30% 的情况下，油田的净增销售额由47.34×108 元/a显著提高至105.91×108 元/a。此项研究为重整重芳烃的利用和稠油掺稀降黏开采提供了新的技术思路。Abstract: In response to the problem of a large amount of excess heavy aromatics in refinery reforming and the difficulty ofprocessing, combined with the high blending ratio and scarce thin oil resources in heavy oil blending and viscosity reductionmining, reforming heavy aromatics will be used for research on ultra heavy oil blending and viscosity reduction. At the same dilutionratio of 0.10, the viscosity reduction rates of Tahe thin oil and reformed heavy aromatics are 68.45% and 92.00%, respectively; Thefitting calculation shows that when the amount of reformed heavy aromatics is only 36.20% of the thin oil, it can meet therequirements of thinning and viscosity reduction for heavy oil in Tahe Oilfield. Taking the heavy oil self injection well in Tahe Oil⁃field as an example, when the water content of heavy oil is between 0% and 50%, taking the total annual oil production of Tahe Oil⁃field blended light oil of 2 million tons/year as the benchmark, taking the average blending ratio as 1, the annual oil increase ratecan reach 49.79% to 71.09%. With a water content of 30% in heavy oil, the net sales revenue of the oilfield has significantlyincreased from 4.734 billion yuan/year to 10.591 billion yuan/year. This study provides a new technical approach for the utilizationof reformed heavy aromatics and the extraction of heavy oil by blending and reducing viscosity.