Study on the Pool-Forming Mechanism of High Content CO2 Gas Pools in Changling Fault-Depression, South Songliao Basin
详细信息
- 责任者：Lu Xuesong (Key Laboratory of Basin Structure and Hydrocarbon Accumulation ; CNPC ; Beijing 100083 ; China) ; Wei Lichun
- 刊名：Natural Gas Geoscience
- 出版年：2011
- 卷期：22(4)
- 关键词：天然气 ; natural gas ; 成藏动力学 ; pool-forming dynamics ; 松辽平原 ; Songliao Plain
- 页码：p.657-663
- 图表：4 illus., 1 table, 17 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
Based on the dissections of the typical high content CO2 gas pools in Changling fault-depression, south Songliao basin, a comparative analysis was taken on the genesis, distribution characteristics and their differences of the gases of Changshen 1, 2, 4, 6, 7 high content CO2 gas pools in deep layer. The results showed that the type of basement faults determined the relative good or bad conditions for mantle-derived CO2 and hydrocarbon gas accumulations, which further determined the CO2 content in gas pools and the accumulation layer of CO2-containing gas. The model of gas migration and accumulation in Changling fault-depression was established, which reasonably explains the gas exploration status and complex distribution problems.