论文部分内容阅读
目的：研究该油藏笼统注水井中吸水小层的渗透率下限。方法：以典型注水井的吸水剖面为标准，结合单井射开小层的渗透率值，在直角坐标上制作出小层吸水状况与其渗透率的关系图版。结果：得到注水井吸水小层的最大渗透率与其渗透率下限的直线方程。结论：笼统注水井中渗透率对小层吸水的影响很大，当小层渗透率低于该井最大射开渗透率的1／3时，说明该小层基本不吸水。
Objective: To study the lower limit of permeability of water-absorbing sub-layer in general injection wells of the reservoir. Methods: Taking the water injection profile of a typical injection well as the standard, and combining with the permeability of a single well, the relationship between the water absorption of the small layer and its permeability was plotted on the rectangular coordinates. Results: The straight line equation of the maximum permeability and the lower limit of permeability of the water injection well was obtained. CONCLUSION: The permeability of general injection wells has great influence on the water absorption of the small layer. When the permeability of the small layer is less than 1/3 of the maximum injection rate of the well, it indicates that the small layer does not absorb water basically.