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朱拉纪深层煤床甲的遗传类型和气体来源分析在格尔盆地格尔盆地Baijiahai上升区

Mengmeng Yang^1,2, Teng Li³, Bing Luo^1,2

¹Xinjiang Key Laboratory for Geodynamic Processes and Metallogenic Prognosis of Central Asian Orogenic Belt, Xinjiang University, Urumqi 830047, China.

|March 17, 2025

概括

在Baijiahai提升中的深罗纪煤床甲 (CBM) 是一种混合气体. 煤气类型的气体来源于化基,而油气类型的气体来源于沙化基,靠近断层影响比例.

科学领域:

地质化学地质化学
石油地质学石油地质学
沉积盆地分析沉积盆地分析

背景情况:

在格尔盆地的Baijiahai提升包含多个源岩集.
深罗纪煤床甲 (CBM) 的起源和遗传类型尚不清楚.

研究的目的:

为了确定深罗纪CBM的遗传类型.
确定深罗纪CBM的气体来源和迁移途径.
为优化CBM探索提供见解.

主要方法:

源岩的地球化学分析 (特性,成熟度,气体组成,碳同位素).
盘子验证和地震解释.
对有机物类型和演变的分析.

主要成果:

碳化,波斯,罗纪的源岩具有很好的碳化合物潜力.
罗纪源岩具有II2和III类有机物质的低成熟度.
深罗纪CBM是一种混合气体,含有54.47%的煤类气体 (化) 和45.43%的石油类气体 (珀米亚化).
油类气体的比例在靠近断层时增加.

结论:

在Baijiahai提升的深罗纪CBM的遗传类型和气体来源得到了阐明.
了解CBM缩法的理解得到了增强.
这些发现为优化勘探区域提供了参考资料.

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