“水包油”特殊岩性油藏机理研究

Study of reservoir forming mechanism of “oil-in-water” special lithology reservoir

文中所介绍的这种油藏与常规油藏不同,它没有统一的油水界面,为呈薄的透镜状或条带状夹持在大段水层中的非常规的“水包油”特殊岩性油藏。从沉积条件、储层条件、油气运移等方面阐述了该种油藏特殊的形成机理。这种油藏的发现拓宽了对岩性油藏的认识范畴。

This paper introduces a type of oil reservoir different from conventional reservoirs. It has no uniform oil-water contact and is an “oil-in-water” special lithology reservoir hold in a large aquifer and presenting as thin lens or flaser shape. The special mechanism of forming such reservoir is expatiated in aspects of sedimentation, reservoir conditions, and oil and gas migration. The discovery of this type of reservoir broadens the understanding of lithology reservoir.