岩性因素对油砂热碱水分离效率的影响——以四川厚坝及内蒙古图牧吉油砂为例  

Effect of Lithology on the Efficiency of the Hot Water-Based Extraction for Oil Sand Bitumen:A Case Study on Oil Sands from Houba,Sichuan and Tumuji,Inner Mongolia

作　　者：何嘉健[1,2] 耿安松[1] 吴亮亮[1] 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广州510640 [2]中国科学院大学,北京100049

出　　处：《矿物岩石地球化学通报》2015年第2期379-386,共8页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金项目(41272148)

摘　　要：油砂是一种重要的非常规石油资源,目前较为常用的沥青回收方式是热碱水分离法。本文运用热碱水分离法处理了四川厚坝与内蒙古图牧吉两地的油砂样品,并对上述两地的油砂样品进行了镜下薄片观察、XRD分析以及比表面积和总孔容测定,对比分析了两者的岩性特征和油砂热碱水分离实验的数据,结果表明,油砂中黏土矿物的含量、油砂岩的胶结程度及胶结方式、油砂的砂颗粒粒径、油砂层遭受风化作用的程度等因素都会影响油砂沥青热碱水分离的效率,在设计油砂开采工艺流程时,应该综合考虑这些因素。Oil sand is a kind of unconventional fuel resource. The hot water-based extraction is the most common way to recover bitumen from oil sands. In this research, the oil sand samples from Houba, Sichuan, and Tumuji, Inner Mongolia, were conducted using the hot water-based extraction method. Microscope observation, XDR analyses, specific surface area and pore volume of oil sands were applied to qualify the lithology of different samples. The bitumen recoveries of the hot water-based extraction were correlated to the lithologic characters of the oil sands. The result shows that factors, such as contents of clay minerals, cementation manner and degree, grain sizes of minerals, and the degree of weathering, may affect the bitumen recovery efficiency from oil sands using the hot water-based extraction. These factors should be taken into account in process design for bitumen recovery from oil sands.

关 键 词：油砂 岩性因素 热碱水分离 沥青回收 

分 类 号：TE35[石油与天然气工程—油气田开发工程]