• 责任者：Chen Fangwen (Institute of Unconventional Hydrocarbon and New Energy Sources ; China University of Petroleum ; Qingdao 266580 ; China) ; Lu Shuangfang
• 刊名：Earth Science
• 出版年：2013
• 卷期：38(6)
• 关键词：成藏模式 ; pool-formed model ; 松辽平原 ; Songliao Plain
• 页码：p.1281-1288
• 图表：7 illus., 1 table, 20 refs.
• 分类号：1003
• issnNo：ISSN1000-2383
• isbnNo：CN42-1233/P

     The controlling effect of fault dense belts on the preferred direction of oil-gas migration is discussed and favorable parts of fault dense belts for oil accumulation inside and outside oil source area are discussed based on the characteristics of fault dense belts of Fuyang Formation in Sanzhao Depression, combining with the oil and gas distribution of in Fuyang Formation of study area in this paper. The results show that there are four types of fault dense belts in Fuyang Formation of Sanzhao Depression, namely antithetic-graben-antithetic fault terrace, horst-graben-antithetic fault terrace, antithetic-graben-consequent fault terrace, and horst-graben-consequent fault terrace. The strike of fault dense belt is the preferred direction of oil-gas migration and horsts and antithetic inside oil source area of fault dense belts are favorable parts for oil accumulation where the strikes of fault dense belt and the layer are parallel or small-angle intersection. Inside oil source area horst and antithetic of fault dense belts are favorable parts for oil accumulation. And horsts and antithetic outside oil source area are favorable parts for oil accumulation and the grabens are secondary favorable ones where the angle of the strikes of fault dense belt and layer ranges from 0 to 45 degrees. The antithetic and horsts are preferential for oil accumulation where the angle ranges from 45 to 90 degrees.