全球致密油的概念、特征、分布及潜力预测

CONCEPT,CHARACTERISTICS,DISTRIBUTION AND POTENTIAL PREDICTION OF THE TIGHT OIL IN THE WORLD

针对当前致密油研究热点,辨析了致密油、页岩油和油页岩的概念,指出轻质致密油为低渗透地层圈闭中的常规轻质油,包括页岩油、砂岩油和碳酸盐岩油,这一概念已得到当前国外主要能源机构认可和应用。根据致密油藏筛选标准,分析了14个典型致密油气藏的主要地质参数,介绍了松辽盆地致密油的特点,通过与5个发展规模大、比较典型的致密油气藏对比,归纳出致密油气藏的地质特征共性和异性。统计了世界致密油潜力资源量,介绍了致密油的主要分布情况、资源发展优势及面临的问题,给出了世界不同地区致密油产量增长的趋势。研究表明,致密油是世界重要的油气接替资源之一,位居非常规油气开发首位,发展前景十分乐观。

In view of the current tight oil research foci the concepts of tight oil, shale oil and oil shale are identi- fied and analyzed, and moreover the LTO （ light tight oil） is pointed out to be the conventional light oil in the low- permeability stratigraphic trap, which includes shale oil, sandstone oil and carbonate oil. This new concept has been recognized and applied by current mainstream foreign energy agencies. According to the screening criterions of tight oil reservoirs, the principal geological parameters of 14 typical reservoirs are figured out, the features of the tight oil in Songliao Basin are introduced, and furthermore 5 large-size and typical tight petroleum reservoirs are contrasted and induced the universality and specialility in their geological characteristics. In addition, the potential resources in the global tight oil are summarized and the main distribution, development preference and facing prob- lem are presented, the trends of the oil production rise in the different regions of the word are summarized. The re- searches show that tight oil is one of the important replacing petroleum resources in the world, and moreover has reached the top of the unconventional hydrocarbon development level, thus the future of the tight oil is very optimis- tic.