含气饱和度新模型的探讨

AN APPROACHING OF A NEW MODEL ABOUT GAS SATURATIO

本文通过对大庆地区气层解释方法的研究,提出了用声波时差、中子孔隙度模型求气层的含气饱和度的新方法,并对大庆地区的五口井进行了试算,试算证明:这种模型能在油、气、水三相流的地层中直接求出含气饱和度,能很好的区分气、液两相流体。

After studying the interpretating method for the gas formations inDaqing, the paper presents a new method to get gas saturation by makinguse of time difference in acoustic logging data and neutron porosity model.We made a calculating test based on the informations. from five wells inDaqing. The test proved that the model gave the gas saturation directly inthe three - phase current of gas, oil and water in the strata, and satisfac-torily distinguished two-phase liquid.