冷东—雷家地区重质稠油地球化学特征及成因分析

CEOCHEMICAL CHARACTERISTICS AND GENETIC ANALYSIS OF HEAVY VISCOUS OIL IN THE LENGDONG LEIJIA AREA

方朝亮 张一伟 张枝焕

Fang Chaoliang Zhang Yiwei Zhang Zhihuan

石油大学 北京100083

University of petroleum

冷东-雷家地区沙一、二段及沙三段原油以重质稠油为主。重质稠油研究在建立本区流体性质分布及地球化学模型过程中占重要的地位。本文应用原油族组份、气相色谱、稳定碳同位素、饱和烃和芳烃色质等多项分析化验资料,综合研究了本区重质稠油的地球化学特征,并结合本区区域地质及地球化学条件讨论了重质稠油的油源条件及成因。从而为本区稠油油藏的勘探开发提供了重要的地质依据。

Crude oil of the unit Ⅰ,Ⅱ and Ⅲ of the Shahejie Formation in the Lengdong-Leijiaarea is dominated by heavy viscous oil The study of the heavy viscous oil plays an important role in establishing a fluid characteristic distribution and geochemical model of thearea. In this paper, various experimental data from the analysis of the family components,gas chromatography(GC)and stable carbon isotope of crude oil,and the gas chromatogra-phy-mass spectrometry(GC-MS)of saturated and aromatic hydrocarbons is used to studycomprehensively the geochemical characteristics of heavy viscotis oil in the area. Combining vvith the regional geology and geochemical condition of the area,the oil sotirce condition and genesis of heavy viscous oil are also discussed.The restilt provides an importantgeological basis for the exploration and development of heavy viscous oil pools in the area.

https://doi.org/10.11781/sysydz199404354