Accurately identifying sweet spots remains a significant challenge for the petroleum industry despite the growing amount of information available for unconventional hydrocarbon resources. These challenges may stem from the inorganic geochemical heterogeneities in source rock composition that can vary within a given basin over time. This study investigates the relationship between source rock composition and the resulting hydrocarbon expulsion, retention, and thermal maturation behavior through artificial maturation experiments on Late Cretaceous (Maastrichtian) Jordanian source rocks (JSR). The JSR is a carbonate-rich Type IIS source rock, which is compositionally similar to major Arabian unconventional prospects (Tuwaiq Mtn, Hanifa, and Shilaif/Natih Fms) as well as other major carbonate source rocks (Eagle Ford & La Luna Fms). However, it is thermally immature and, therefore, can be considered as an immature analog to the mature unconventional Type IIS source rock prospects.

中文翻译：

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地球化学成分异质性对烃类排斥和热成熟的影响——约旦马斯特里希烃源岩的模拟研究


尽管非常规碳氢化合物资源的信息量不断增加，但准确识别最佳熔断点仍然是石油行业面临的重大挑战。这些挑战可能源于烃源岩成分中的无机地球化学非均质性，这种非均质性在给定盆地内可能会随时间而变化。本研究通过对晚白垩世（马斯特里赫）约旦烃源岩 （JSR） 的人工成熟实验，研究了烃源岩成分与由此产生的烃类排斥、保留和热成熟行为之间的关系。JSR是一种富含碳酸盐的IIS型源岩，其成分与主要的阿拉伯非常规前景（Tuwaiq Mtn、Hanifa和Shilaif/Natih Fms）以及其他主要的碳酸盐源岩（Eagle Ford和La Luna Fms）相似。然而，它在热上是不成熟的，因此可以被认为是成熟的非常规 IIS 型烃源岩前景的不成熟模拟。