塔河六区缝洞型碳酸盐岩油藏井间连通类型研究

Inter-well Connectivity Types Analysis of Fracture-cavity Carbonate Reservoir at Block 6 in the Tahe Oil Fields

塔河油藏属于大型碳酸盐岩裂缝和岩溶缝洞型油藏,储层非均质性强。研究其井间连通类型可以为后期注水开发奠定基础,并且是进一步提高油藏开发效果的关键。井间连通类型的研究主要包括两个部分:①通过结合测井资料、录井资料和生产动态特征对单井储集空间类型进行划分;②根据注采响应和类干扰试井的方法进行井间压力干扰分析,并结合储集空间类型判断出井间连通模式。最后归纳总结出3种井间连通类型。

Tahe reservoir belonging to large fractured-cavity carbonate reservoir,which the reservoir heterogeneity is very strong.Study on inter-well connectivity is the key to further improving the effect of reservoir development.Inter-well connectivity types of research consists of two parts：① by combining logging data and production of dynamic characteristics,to divide the reservoir type;② based on injection response and interference test to analysis inter-well pressure interference,and combined with reservoir type to determine the inter-well connected mode.Finally,the three kinds of inter-well connected types are summarized.