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塔河油田超稠油混合掺稀降黏实验研究 被引量:16

Experimental study of blending light oil to reduce super heavy oil viscosity in Tahe Oilfield
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摘要 塔河油田超稠油的开采关键在于降黏,实践证明掺稀降黏是塔河超稠油开采的有效方法,但稀油与稠油在井底混合均匀程度不高,使得降黏效果与室内实验差距较大。研究发现,在掺稀油时掺入少量混合芳烃可提高掺稀降黏效果。实验结果表明,在静态下混合芳烃对塔河超稠油有良好的溶解能力,掺入混合芳烃能够显著降低超稠油黏度,且降黏效果好于单一掺稀油效果,同时又可节约稀油资源。 Viscosity reduction is critical to recovery of super heavy oil from Tahe Oilfield.Blending light oil has been proved to be effective for producing Tahe super heavy oil.However,the degree of blending evenness between light oil and heavy oil in bottom hole is low,resulting in a big difference in viscosity reduction result from that of laboratory experiment.The study has found that the viscosity reduction effect can be improved by adding a little aromatic hydrocarbon admixture into the system when blending light oil into heavy oil.The experiment result indicates that aromatic hydrocarbon admixture has a good dissolving capacity to Tahe super heavy oil under static condition,it can greatly reduce viscosity and the effect of viscosity reduction is much better than blending light oil alone,thus saved light oil resource.
机构地区 中国石油大学
出处 《特种油气藏》 CAS CSCD 2011年第4期111-113,120,共4页 Special Oil & Gas Reservoirs
基金 国家高科技研究发展计划"863"项目子课题"与蒸汽吞吐结合的表面活性剂驱油体系研究"(2007AA06Z201)
关键词 超稠油 混合芳烃 稀油 掺稀降黏 溶解速度 塔河油田 super heavy oil aromatic hydrocarbon admixture light oil blending light oil for viscosity reduction dissolving rate Tahe Oilfield
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