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源水库配置和煤炭和页岩的地质地化学控制

Haiqi Li^1,2, Song Li^3,4, Dazhen Tang^1,2

¹School of Energy Resource, China University of Geosciences (Beijing), Beijing, 100083, China.

Scientific reports

|February 17, 2025

概括

本研究评估了四川盆地煤炭测量气体的地化学和地质条件. 煤炭页岩交叉床提供有利的储特性和气体勘探的密封.

科学领域:

地质化学和石矿学
沉积地质学沉积地质学
石油地质学石油地质学

背景情况:

在四川盆地的龙田形成为煤炭测量气体勘探提供了新的机会.
目前缺乏对地质化学和地质条件的全面评估.

研究的目的:

确定水库孔状结构,并确定源-水库系统的地质-地化学控制因素.
评估在龙坦形成中煤炭测量气体勘探和开发的潜力.

主要方法:

对源岩的元素和有机地质化学分析.
矿物学和散装岩石地质物理分析 (低温吸附,入侵,核磁共振).

主要成果:

南部经常有页岩和岩砂岩交汇,中部盆地有煤页岩交汇.
源岩含有III型煤化物,高度过度成熟,TOC高,碳化合物潜力优异.
煤层表现出良好的储性质 (多孔性,孔量),页岩岩石表现出有效的密封能力.

结论:

页岩和煤炭间的交层形成了叠加气体储库的基本源储库配置.
这些交叉层代表了四川盆地煤炭测量气的有利发展间隔.

关键词:

煤炭措施煤炭措施地质化学地质化学地质地质地质地质地质地在四川盆地.非常规气体不传统气体

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