单体烃类包裹体在油气地球化学中的应用——以塔河油田为例

潘安阳; 秦建中; 姚素平; 腾格尔; 申宝剑

doi:10.11781/sysydz201705675

单体烃类包裹体在油气地球化学中的应用——以塔河油田为例

doi: 10.11781/sysydz201705675

1.
南京大学地球科学与工程学院, 南京 210093
2. 中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目: 联合基金重点支持项目“古生界页岩含气性原生有机质控制作用研究”（U1663202）和中国石化科技部项目“海相页岩超显微特征及与页岩气富集的关系”（P15097）资助。

详细信息

作者简介:
潘安阳(1986—),男,博士后,从事烃源岩有机地球化学研究.E-mail:panay.syky@sinopec.com.

中图分类号: TE122.114
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出版历程
- 收稿日期: 2017-04-17
- 修回日期: 2017-08-03
- 刊出日期: 2017-09-28

Application of single hydrocarbon inclusions in petroleum geochemistry: A case study of the Tahe oilfield

1.
School of Earth Science and Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 利用近年来发展的烃类包裹体研究新方法，综合分析了塔河油田油气成藏期次与油气来源特征。结果表明，塔河油田具有多期油气充注特征，其中海西中期和喜马拉雅晚期占优势，单体烃类包裹体激光剥蚀在线成分分析表明，早期原油（黄色荧光包裹体）具有饱和烃色谱呈双峰型、芳烃含量较高的特征，属于成熟度相对较低的中质原油；而晚期原油（蓝色荧光包裹体）具有饱和烃呈单主峰型、芳烃含量较低的特征，属成熟中晚期轻质原油。结合研究区原油的来源或烃源岩沉积环境、成烃生物、成熟度、运移距离和成藏过程及时间，推测早期原油主要来源于下寒武统—下奥陶统优质烃源岩，晚期原油主要来自上奥陶统碳酸盐岩烃源岩。
- 烃类包裹体 /
- 成藏期次 /
- 生物标志化合物 /
- 油气来源 /
- 塔河油田
Abstract: The hydrocarbon accumulation period and petroleum source characteristics in the Tahe oilfield were discussed using the newly developed methods for hydrocarbon inclusion analyses. The results confirmed that there were many stages of hydrocarbon accumulation in the Tahe oilfield, especially predominated by the Middle Hercynian and the Late Himalayan. The online laser ablation compositional analyses of single hydrocarbon inclusion showed that the early oil (yellow fluorescing inclusion) was characterized by bimodal n-alkane distribution and higher aromatic component content, belonging to medium crude oil with relatively lower maturity. In contrast, the late oil (blue fluorescing inclusion) was featured by unimodal n-alkane distribution and lower aromatic component content, belonging to late light crude oil at the middle-late mature stage. Based on the petroleum source or sedimentary environment of source rocks, hydrocarbon-forming organisms, maturity, migration distance, accumulation process and period, the early oil was suggested mainly from -C₁-O₁excellent source rocks and the late oil was mainly from O₃ carbonate source rocks.
- hydrocarbon inclusion /
- hydrocarbon accumulation period /
- biomarker /
- petroleum source /
- Tahe oilfield

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