Understanding on the Geochemical Parameters Used for Secondary Oil Migration: Revelation from Simulation Experiment of Secondary Oil Migration
详细信息
- 责任者：Wang Huitong (Key Laboratory for Petroleum Geochemistry ; CNPC ; Beijing 100083 ; China) ; Zhang Dajiang
- 刊名：Petroleum Exploration and Development
- 出版年：2007
- 卷期：34(3)
- 关键词：二次运移 ; secondary migration
- 页码：p.342-347
- 图表：15 illus., 12 refs.
- 分类号：1003
- issnNo：ISSN1000-0747
- isbnNo：CN11-2360/TE
摘要
To judge the direction of petroleum secondary migration by using geochemical parameters, the simulation experiment of secondary oil migration was performed in self-designed apparatus. The family composition, saturated hydrocarbons, aromatic hydrocarbons, and alkyl phenol and neutral nitrogen compounds in the simulation samples were analyzed using GCMS. The results demonstrate that crude oils have the same phenomena as the chromatography process while passing through carrier beds. In the experiment, except for the light fraction which is mainly used for solvent, all other compound contents do not simply increase or decrease, instead they have an enriching process. The migration direction can be judged by combining the concentration curve of the compounds and their ratio curve into one drawing. If both the curves change in one direction (increase or decrease), the direction is the migration direction. If they have different directions, then the decrease direction is the migration direction of crude oils.