缝洞型碳酸盐岩井间连通性研究——以S48井区缝洞单元为例

Interwell connectivity in fracture-cavity type carbonate reservoir:An example from S48 well block

碳酸盐岩储层具有极强的非均质性,在现有资料和技术条件下,难以明确判断井间的连通性。针对缝洞型碳酸盐岩井间连通关系难以确定的问题,以S48井区缝洞单元为例,采用注水见效的方法,研究了井间的连通性。研究表明,利用该方法能很好地了解缝洞单元内各井之间的连通情况。

Carbonate form ation is characterized by strong reservoir heterogeneity. As well as lack of sufficient knowledge and information about reservoir, it is difficult to judge the connectivity between wells. The reservoir connectivity is analyzed by the method of water injection effectiveness in $48 well block. The research result shows that this method can reflect the connectivity of fracture-cavity block between the oroducing wells.