中国石油大学学报（自然科学版）Issue(4)：27-34,8.DOI:10.3969/j.issn.1673-5005.2015.04.004
松辽盆地北部陆相泥页岩孔隙特征及其对页岩油赋存的影响
Pore characteristics of continental shale and its impact on storage of shale oil in northern Songliao Basin
摘要
Abstract
Gas adsorption, high-pressure mercury injection and scanning electron microscopy were performed to study micro-scopic pore characteristics of the Cretaceous continental shale in the northern Songliao Basin. Rock pyrolysis, mineral compo-sition analysis were combined to determine the control factors and impact on oil-bearing property of pore development. The results show that pores between flaky clay minerals predominate shale pores. The development extent of fracture is not high, and shale pores consist mainly of micropores and mesopores. Development extent of shale pore is controlled by buring depth and secondary pore development, and the organic pore is not of great importance to shale oil reservoir. If oil source is abun-dant, oil-bearing property of shale is mainly controlled by porosity, and pores with diameters larger than 20 nm are the main storage space. As a result, the " sweet spots" with large pores should be paid more attention to in the exploration and exploi-tation. At the junction of the southern Longhupao terrace and Qijia-Gulong sag, thin sandy mudstone and siltstone inter beds are well developed in Qingshankou Formation, which is favorable to be artificially fractured. In addition, shale in the forma-tion has high secondary porosity and excellent oil-bearing property. Considering above factors, this area is the preferable tar-get for exploration and exploitation of shale oil in the northern Songliao Basin.关键词
松辽盆地/页岩油/孔隙/比表面积/含油性Key words
Songliao Basin/shale oil/pore/specific surface area/oil-bearing property分类
能源科技引用本文复制引用
李吉君,史颖琳,黄振凯,王伟明,曹群,卢双舫..松辽盆地北部陆相泥页岩孔隙特征及其对页岩油赋存的影响[J].中国石油大学学报（自然科学版）,2015,(4):27-34,8.基金项目
国家自然基金项目(41472105,41272152,41330313,41172134) （41472105,41272152,41330313,41172134）
油气资源与探测国家重点实验室开放课题(PRP/ open-1209) （PRP/ open-1209）
中国石油科技创新基金项目(2014D-5006-0107) （2014D-5006-0107）
中央高校基本科研业务费专项(14CX02117A,14CX02224A,13CX05013A) （14CX02117A,14CX02224A,13CX05013A）
