A new type of carbonate reservoir has been discovered in the Tankou area of Jianghan Oilfield.To explore its reservoir characteristics and hydrocarbon accumulation mechanisms,this study analyzes lithology,reservoirs,and hydrocarbon migration using core samples,thin sections,and scanning electron microscopy.The results show that all four types of carbonate rocks in the area possess storage space,with granular structures offering the best reservoir properties.High-energy facies and constructive diagenesis synergistically control the development of high-quality reservoirs,while hydrocarbon accumulation is governed by the interplay of high-quality source rocks,reservoir properties,and source-reservoir pressure differentials.The findings provide valuable guidance for unconventional hydrocarbon exploitation.
关键词
碳酸盐岩/江汉盐湖盆地/碳酸盐岩储集特征/成藏模式
Key words
carbonate rock/Jianghan Salt Lake Basin/reservoir characteristics/hydrocarbon accumulation model
维普
万方数据