CAJ | 학술논문

致密岩油是我国石油勘探比较现实的接替领域。致密岩油研究的难点在于：致密化过程与不同级别孔隙对石油迁移的影响，石油可否发生明显运移；是否全部为连续性油气聚集。近年来，人们总结出国内致密岩油的主要地质特征，初步探索了致密岩油的形成分布、富集成藏特征，逐步建立了纳米级孔喉的观测技术。国外研究认为，致密岩层内的流体流动受控于优势孔隙-喉道的分布，中孔网络与有机质内的大孔相连，提高了致密岩层的渗透性；致密油在富集过程中也会发生明显的侧向运移；连续性油气聚集模型不能准确反映威利斯顿盆地和大绿河盆地的油气资源潜力。今后应关注：岩石致密化过程和微米-纳米级孔喉的形成分布、致密岩油的赋存状态和运移成藏机理、我国致密岩油的资源潜力评价指标等3个关键科学问题。
치밀암유시아국석유감탐비교현실적접체영역。치밀암유연구적난점재우：치밀화과정여불동급별공극대석유천이적영향，석유가부발생명현운이；시부전부위련속성유기취집。근년래，인문총결출국내치밀암유적주요지질특정，초보탐색료치밀암유적형성분포、부집성장특정，축보건립료납미급공후적관측기술。국외연구인위，치밀암층내적류체류동수공우우세공극-후도적분포，중공망락여유궤질내적대공상련，제고료치밀암층적삼투성；치밀유재부집과정중야회발생명현적측향운이；련속성유기취집모형불능준학반영위리사돈분지화대록하분지적유기자원잠력。금후응관주：암석치밀화과정화미미-납미급공후적형성분포、치밀암유적부존상태화운이성장궤리、아국치밀암유적자원잠력평개지표등3개관건과학문제。
Tight rock oil is a more realistic exploration domain of oil fields to succeed. The difficulties in tight rock oil research include the impact of tight process and different porosity classes on petroleum migration, whether petroleum has been transported or not, and whether all the reservoirs are continuous. In recent years, the main geologic features of domestic tight rock oil has been concluded, a preliminary discussion of the generation, distri-bution and accumulation of tight rock oil has been carried out, and an observation and measurement technique of nano-class pores has been established gradually. By contrast, the overseas researchers suggest that the fluid flow in tight rocks is controlled by the distribution of dominant pore-throat size. The networks of mesopores are ob-served to connect with large macropores within organic matter, which would obviously increase permeability in tight rocks. The obvious lateral migration of tight rock oil may take place during enrichment process. The model of continuous hydrocarbon accumulation could not evaluate accurately the resource potential in both the Williston Basin and the Greater Green River Basin. In near future, three crucial scientific problems should be focused on:rock tightening process and the relative distribution of miro-and nano-pore and throat structure, the occurrence state and migration and accumulation mechanisms of tight rock oil, as well as the evaluating indictors of resource potential of Chinese tight rock oil.