• 责任者：Sun Wei (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; CDUT ; Chengdu 610059 ; China) ; Liu Shugen
• 刊名：Acta Petrologica Sinica
• 出版年：2011
• 卷期：27(8)
• 关键词：天然气 ; natural gas ; 成藏模式 ; pool-formed model ; 四川盆地 ; Sichuan Basin
• 页码：p.2349-2361
• 图表：8 illus., 1 table, 61 refs.
• 分类号：1003
• 出版序号：1826
• issnNo：ISSN1000-0569
• isbnNo：CN11-1922/P

The deep marine carbonate natural gas pools in Sichuan basin principally mean that their reservoir rocks were deposited before Late Triassic and buried deeper than 4 500 m, which can be classified into two types according to the coupling relationships between the gas generation centers, gas accumulation centers and preservation gas centers. Most of gas both in the primary and the second gas pools is from oil crack. The reservoir rocks of the primary natural gas pools contain lots of bitumen generated by the crack of oil, but there is not bitumen in the reservoir rocks of the second natural gas pools. There are four formation models of the primary natural gas pools in the deep part of the Sichuan Basin. Therefore the accumulation mode with the “three centers” being superimposed and the accumulation mode with “the preservation center” disintegrated should be paid great attention to in the future petroleum exploration.