柴北缘鱼卡地区中侏罗统石门沟组油页岩品质特征及开发利用前景

摘要

Qaidam Basin is an important oil shale-bearing basin in Northwest China,and has great potential for oil shale in Yuqia area of northern margin.In order to find out the quality features of oil shale in the Middle Jurassic Shimengou Formation,systematic sampling,tests and analysis of Well YYY-1 in the study area have been carried out.All data show that the oil shale in the research area has the features of medium oil content,medium calorific value,high ash content,medium volatile,low moisture,low density and low sulfur.With its convenient transportation,good geological conditions and a series of industrial analysis indexes,the oil shale in Yuqia area is characterized by high quality,shallow burying depth and a high value of industrial development.It is suggested that an integrated industrial development process should be implemented in the oil shale-bearing areas in Yuqia,such as dry distillation refining,electric power generation,silica,and building materials.Integrated utilization project of oil shale in Yuqia area can be developed.This could alleviate the current energy shortage in Qaidam Basin,and also help to promote production of agricultural and animal huabandry in Qaidam area.%柴达木盆地是中国西北地区重要的含油页岩盆地,其中柴北缘鱼卡地区油页岩潜力巨大.为查明柴北缘鱼卡地区中侏罗统石门沟组油页岩品质特征,对研究区鱼油页1井(YYY-1)岩芯进行系统取样和测试,分析结果表明研究区油页岩为中等含油率、中等发热量、高灰分、中等挥发分、低水分、低密度和低硫型油页岩.鱼卡地区交通便利、地质条件好,结合一系列工业分析指标,认为鱼卡地区油页岩品质好、埋藏浅、具有较高工业开发价值.建议对鱼卡油页岩含矿区可采用一套联合干馏炼油-发电-二氧化硅-建材的一体化工业开发流程,进而建设鱼卡地区油页岩综合开发利用工程,不仅可以改善柴达木盆地当前能源短缺的局面,还有利于促进柴达木地区的农牧业生产.