芳烃参数重建原油成熟度及其在哈山地区的应用

原油成熟度由于不能采用实验方法直接测定，多利用生标物参数进行判识。常用的生标物成熟度参数多为定性分析，且不适用于高成熟阶段的原油样品。以低热演化程度的烃源岩样品为研究对象，通过进行高温热模拟实验，分析了不同热演化阶段下液态烃产物的芳烃特征，探讨各芳烃参数与实测热成熟度的关系。结果显示，甲基菲、三甲基萘等参数与热成熟度具有较好的相关性，据此建立了各参数与热成熟度的拟合公式；并对哈山地区油砂样品进行了成熟度判识，其中二叠系、三叠系和侏罗系原油成熟度较低，白垩系原油成熟度较高。

Aromatic parameter reconstruction of crude oil maturity and its application in Hala'alate area

As no experimental method can be adopted to directly measure crude oil maturity, biomarker parameters are usually used as proxies. Common biomarker parameters are mostly applied to make a qualitative analyses, but they may not be applicable to measure high maturity crude oil. High temperature thermal simulation experiments were conducted on low maturity source rock samples to analyze features of liquid aromatic products at different stages of thermal evolution. The relationship between various aromatic parameters and thermal maturity was explored. Experimental results showed that methylphenanthrene and trimethyl naphthalene have significant correlations with thermal maturity. On this basis, some equations for extrapolating various parameters to thermal maturity were established. Thermal maturity of oil sand samples from the Hala'alate area was determined and showed that the Permian, Triassic, and Jurassic crude oil has a lower maturity, while the Cretaceous crude oil has a high maturity.