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我们知道稠油油藏的粘度很高,用常规方法开采是无法凑效的。但是,为了寻求适于稠油开采的方法,人们经过了数十年的探索及努力终于找到了一种开采稠油的新方法——即向稠油油藏注入热能,用来降低原油粘度,减小油藏流动阻力,从而产生驱油效果,我们称之为热力采油方法,即通常所讲的“稠油热采”。当今使用的热力采油技术分为两大类型。一类是把热流体注入稠油油藏,另一类是利用人为方法,使热能在油层内产生——也称之为就地加热过程,火烧油层或火驱法就是其中的一种。当然也试验过将注入热量和就地产生的热量联合应用的方法,但没有多大发展,热力采油工艺
We know that the viscosity of heavy oil reservoirs is very high. Mining with conventional methods can not work well. However, in search of a suitable method for heavy oil recovery, after decades of exploration and efforts, a new method of heavy oil recovery has finally been found - that is, injecting heat energy into heavy oil reservoirs to reduce crude oil viscosity, Reduce the reservoir flow resistance, resulting in displacement effect, we call the thermal recovery method, which is commonly referred to as “heavy oil thermal recovery ”. Today’s thermal oil extraction technology is divided into two types. One is the injection of hot fluids into heavy oil reservoirs and the other is the use of man-made methods to generate heat within the reservoir - also known as in-situ heating, one of which is a firebed or fire flooding method. Of course, the method of combining the heat input with the heat generated locally has also been tried. However, it has not been greatly developed. The heat recovery process