- 责任者：Zhao Wenzhi (Exploration & Production Company ; PetroChina ; Beijing 100011 ; China) ; Wang Zhaoyun
- 刊名：Petroleum Exploration and Development
- 出版年：2011
- 卷期：38(2)
- 关键词：裂解气 ; cracked gas ; 油气成因 ; oil-gas origin
- 页码：p.129-135
- 图表：6 illus., 1 table, 23 refs.
- 分类号：1003
- issnNo：ISSN1000-0747
- isbnNo：CN11-2360/TE
The natural gas relaying generation model(abbreviated as relay model) of organic materials focuses on the potential of gas generation and accumulation derived from the dispersed liquid hydrocarbons retained in source rocks during high to over mature stage (Ro＞1.6%). According to the supplementary kinetic studies and anatomization of discovered gas reservoirs, it was found that source rocks still contain a large amount of liquid hydrocarbons within oil window even after expulsion, which can serve as the effective gas source kitchen during the high to over mature stage. The significance of the natural gas relay model is reflected at the following three aspects: 1) focusing on natural gas accumulations of dispersed liquid hydrocarbons retained in source rocks; 2) determination of the main gas-generation periods of retained liquid hydrocarbons; and 3) evaluation on the conventional gas accumulation potential of the cracking gas outside of the source kitchen from the detained liquid hydrocarbons during the high to over mature stage.