关键词: 碳酸盐储层, 不连续介质, 注水压降, 储层参数, 辅助软件

Abstract:

The conventional method to research carbonate reservoir is to take it as a continual media and construct model, but this  is not the answer for underground substance. The paper adapts a discontinuous way to rebuild a new model by dividing reservoir into three systems: fracture system, cave system and matrix system and getting a drawdown formula which suits to carbonate reservoir; consequently, the way to get reservoir parameters is deduced in the paper. On the base of the theory research, the software is developed and the drawdown test data from fracture and cave reservoir can be explained in the software quickly and accurately. Through the analysis of more than ten well data, the method and software have advantage of easy operation, accurate result and can serve for oil and gas field.

Key words: carbonate reservoir, discontinuous media, water injection drawdown, reservoir parameter, assistant software