双河油田核三段沉积微相特征及剩余油分布

双河油田位于泌阳凹陷南部,紧邻生油中心的双河鼻状构造上。含油层位主要为下第三系核桃园组,以核三段为主。通过岩心及测井曲线进行测井相精细研究分析,划分为水下分流河道、河口坝、前缘席状砂、水下溢岸砂体、重力流砂体5种砂体微相,它们具有不同的几何规模、物性和平面分布特征。这些特征控制了油层的平面油水运动、吸水和产液能力,进而控制了剩余油分布特征,从而指导油田开发后期剩余油开采的重点方向。

The sedimentary microfacies characteristic and the distribution of the remaining oil of the Formation of 3rd Member of Hetaoyuan Formation in Shuanghe Oil Field

Shuanghe oilfield is located in the southern of Biyang depression,closing to the Shuanghe nose structure which is the oil-forming centre.The main oil-bearing layer is the Eogene system Hetaoyuan Formation,by the third member primarily.Through the core and log can be done the fine analysis and research to the electrofacies,containing five sand microfacies,that is the under water distributary channel,the mouth bar,the front sand sheet,the under water overbank sand and the density sand.They have different geom...