在有机硫丰富的泥石中早期的多孔性产生
Levi J Knapp1,2, Omid H Ardakani3,4, Julito Reyes3
1Japan Organization for Metals and Energy Security (JOGMEC), Chiba, Japan. knapplevij@gmail.com.
Scientific reports
|June 19, 2023
概括
粘土石中的高硫含量 (IIS型二氧化碳) 比较低硫含量 (II型二氧化碳) 早产生有机多孔性. 这一发现影响了对岩石性质的理解,用于资源勘探和废物处理.
科学领域:
- 地质化学 地质化学
- 石化学 石化学是一门学科.
- 沉积地质学 沉积地质学
背景情况:
- 高总有机硫 (TOS) 含量是IIS型煤炭的特征,显著影响煤炭的转化.
- TOS含量对泥石中的有机多孔性演变的影响仍未得到充分研究.
研究的目的:
- 研究总有机硫 (TOS) 含量的变化对泥石中有机孔性的发展的影响.
- 为了比较IIS型和II型煤之间的有机性生成的热成熟度值.
主要方法:
- 从具有低至高TOS含量的三个不同的有机丰富单元中选择了五个热不成熟的泥石核心样本.
- 应用水性热解对人工成熟的样本,将其分成四个不同的热成熟度水平.
- 测量和比较石油物理和有机地质化学特性在热解前后.
主要成果:
- 有机多孔性是在II型二氧化与II型二氧化相比,在II型二氧化的泥石中以较低的热成熟度产生.
- 在IIS型样本中,显著的多孔性发展发生在0.70%VRoeqv以下.
- II型样本中的多孔性显示出更广泛和更强大的发展,高达1.1%的VRoeqv.
结论:
- 这项研究表明了一种新奇的现象:在高TOS (IIS型) 泥石中早期的有机多孔性产生.
- 这些发现对于将有机丰富的泥石用作顶层岩石,碳化合物储库和二氧化碳或核废物处置场所的特征至关重要.
- 了解基于煤类型的孔隙系统演变对于预测地下形成的储存容量和流体流动至关重要.
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