油层渗透率分布型对水驱特征曲线的影响

本文在文献1]的基础上,通过我国M油田注水开发的实例,就油层非均质性对水驱特征曲线的影响做了进一步的探讨,并着重就油层渗透率分布类型对水驱特征曲线的形态和近似直线段起始与终止区间的影响做了较深入的工作。明确提出了油层渗透率分布类型对水驱特征曲线形态具有较为明显的影响,但不改变其形态所具有的如文献1]提出的几个基本特征的结论。

THE EFFECTS OF PERMEABILITY DISTRIBUTION ON THE WATERFLOODING CHARACTERISTIC CURVE

This paper discuses the effects of the permeability distribution on the water flooding characteristic curve (the logarithm of cumulative water injection vs cumulative production). A paper published before indicated that the heterogenity of permeability had an effect on the waterflooding characteristic curve and this paper indicated that the permeability distrabution yields remarkable influences on the form of waterflooding characteristic curve but the main characateristics of the curve is not changed. The reservoir and production data of an oil reservoir are used as an example.