基于磁分离技术的油页岩原位开采实验——以吉林省桦甸市油页岩为例

In-situ exploitation experiment of oil shale based on magnetic separating technology: Take oil shale in Huadian City of Jilin Province as an example

针对油页岩原位开采过程中存在的开采速度较慢、开采质量不高等问题,利用油页岩本身存在的磁性,采用磁分离技术将油页岩中的油气分离出来,从而提高油页岩开采效率,降低页岩油的开采成本,完善了传统的微波加热原位开采技术。以吉林省桦甸市油页岩为实验对象,设计实验方法和步骤,建立实验数据库并统计分析数据。结果表明:此次研究的原位开采技术开采油页岩得到的页岩油以中质油为主,轻质油次之,两种油质的产量总和占页岩油总产量的99%;磁分离处理后的油页岩,在热解作用下减小了油页岩孔隙的渗流阻力,从而降低了油页岩分解温度,提高了油页岩原位开采速度、产量和质量。该项技术可为油页岩原位开采提供新的思路和方向。

Aiming at the problems of low production rate and quality in the process of oil shale in-situ production,by means of magnetism of oil shale itself,magnetic separating technology is adopted to separate oil and gas from oil shale so as to enhance oil shale exploitation effiency,reduce production cost and perfect traditional microwave heating in-situ mining technology. Taking the oil shale in Huadian City of Jilin Province as research object,experimental method and steps are designed,experimental database is established and data results are statistically analyzed.The results show that produced shale oil by in-situ exploitation is mainly medium oil and secondly light oil. The sum of the two oils accounts for 99% of the total production of shale oil. For the separated oil shale,under action of pyrolysis,the flow resistance through shale pores is reduced,thus decreasing decomposing temperature of oil shale and improving in-situ mining rate,production and quality. This technology can provide new idea and direction for in-situ production of oil shale.