一、油田采收率的概念油田采收率就是采出储量与地下总储量的比值,以百分率表示。有几个常用术语一定应弄清楚,以便参阅有关文献。一次采油:油田靠天然能量采油的方法称为一次采油。所谓天然能量,包括:溶气驱动、气压驱动、水压驱动、重力驱动及综合驱动等能量。 First, the concept of oil recovery The recovery rate of oilfield is the ratio of production reserves to total underground reserves, expressed as a percentage. There are a few commonly used terms that must be clarified in order to consult the literature. A production: oil field by natural energy production method is called a production. The so-called natural energy, including: dissolved gas drive, pneumatic drive, hydraulic drive, gravity drive and integrated drive and other energy.