依据地震、岩心和测井资料,通过唯一钻遇红河深水扇的YC35井的岩心观察与描述,对红河深水扇沉积物重力流沉积特征进行研究,并与典型的沉积模式相比较,确定红河深水扇的沉积物重力流类型.结果表明:YC35井岩心沉积物为半深海环境下的重力流沉积;红河深水扇发育多种沉积物重力流类型,包括碎屑流、颗粒流、液化流以及浊流等,它们在纵向上相互叠置;红河深水扇属于富砂型深水扇,储层发育,这为红河深水扇的油气勘探奠定了物质基础.%The characteristics of sediment-gravity flows of the Red River deep-water fan were researched by core observation and description of well YC35 according to seismic, cores and logging data of study area. Well YC35 was the only well drilling the Red River deep-water fan. The types of sediment-gravity flows of the Red River deep-water fan were determined compared with the typical sedimentation model. The results indicate that the core sediments from well YC35 were the deposition of sediment-gravity flows in bathyal environment. And several types of sediment-gravity flows were developed in Red River deep-water fan, including debris flows, grain flows, liquified flows and turbidity currents, which overlaid on each other. Red River deep-water fan belongs to the sand-rich fan type, and reservoir developed in this area, which laid the material foundation for the oil and gas exploration.
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