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裂缝型油气藏油气产量占整个石油天然气产量的一半以上,是21世纪石油增储上产的重要领域之一。研究裂缝的响应规律和裂缝识别方法非常重要。海拉尔盆地*地区布达特群是特低孔特低渗双孔隙介质储层,裂缝发育。本文从该区的地质条件出发,运用裂缝指示曲线法进行裂缝识别,即根据已知的油井资料提取一系列指数并在此基础上构造综合概率指数法来进行裂缝识别。本文对裂缝进行了初步定性地识别并为定量识别裂缝打下了良好的基础。
Fractured oil and gas reservoirs account for more than half of the total output of oil and gas, which is one of the important areas for oil and gas production increase in the 21st century. It is very important to study the law of crack response and the method of crack identification. In the Hailaer Basin * area, the Budat group is a reservoir of ultra-low porosity and low permeability dual-porosity media with fractures developed. Based on the geological conditions in this area, the fracture indication method is used to identify the fractures. That is, a series of indices are extracted based on known well data and the synthetic probability index method is constructed to identify the fractures. In this paper, the initial qualitative identification of cracks and fractures for quantitative identification laid a good foundation.