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用于升级中低成熟度页岩油的热裂解:有机物发生的演变

Bai Jinmei¹, Qian Kun¹, Wu Xiaojun¹

¹School of Petroleum and Natural Gas Engineering, Changzhou University, Changzhou, China.

Scientific reports

|December 3, 2025

概括

这项研究描述了JY页岩,揭示了其在现场提升的高碳化合物潜力. 热裂解模拟表明重碳化合物的有效转化为轻碳化合物的有效转化,支持开发可行性.

科学领域:

地质化学和石油地质学
有机地化学有机地化学
储水库工程储水库工程

背景情况:

评估中低成熟度页岩油属性对于资源开发至关重要.
了解碳化合物产生潜力将地质资源与工程应用联系起来.

研究的目的:

系统地描述JY油页岩的地化学特性.
阐明有机物发生的热裂解机制.
评估中低成熟度页岩油现场升级的可行性.

主要方法:

使用了维特里尼特反射率 (R₀),有机碳总量 (TOC),热重力学分析 (TGA) 和Rock-Eval热解.
开发和优化了一个现场升级模拟系统.
核磁共振 (NMR) T₁-T₂光谱和热解气色谱/质谱 (PY-GC-MS) 在热裂解前后进行比较.

主要成果:

JY页岩样本显示高TOC (1.942.57%),显著的碳化合物潜力 (约. 21毫克/克) 和I型煤化物 (90.33%的萨普罗),表明中低成熟度.
在450°C进行12小时的模拟,实现了~40%的有机碳降解,裂变增强了效果.
热裂解使轻碳化合物增加了20%左右,重碳化合物减少了20%以上,证实了重碳化合物转化为轻碳化合物的序列.

结论:

由于其有利的地质化学特性和高碳化合物生成潜力,京页岩适合在现场进行升级.
热裂解有效地将有机物转化为更轻的碳化合物,验证了现场升级过程.
该研究为优化中低成熟度页岩石油开发和降低风险提供了关键的理论和实验支持.

关键词:

碳化合物产生的潜在潜力在现场升级升级.中低成熟度的页岩油.有机地质化学评估热裂解是一种热裂解.

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