下二门油田中上层系剩余油成因及可动油定量分布研究

影响油田剩余油分布的因素很多,为了更合理地开采下二门油田,必须针对其地质开发特点,寻找影响剩余油分布的主控因素.根据精细油藏数值模拟结果,对下二门油田中上层系15个流动单元的剩余油饱和度进行了定量精细描述,结果表明:该油藏剩余油分布主要受断层封闭性和储层物性条件的控制.通过油藏数值模拟的结果到油藏三维地质建模的转换计算,获得了15个流动单元剩余油量和可动油量的定量统计值.

Study on the factors of influencing the remaining oil distribution and the quantitative calculation of the movable oil in the middle and upper layer series of Xiaermen Oilfield

In order to reasonably develop remaining oil,the main factors of influencing the remaining oil distribution in the studied area are studied according to the geologic and exploit features of Xiaermen Oilfield.The remaining oil saturation of 15 flow units in the middle and upper layer series is described according to the results of fine numerical reservoir simulation.It is shown that the remaining oil distribution is mainly controlled by the closeness of faults and the physical property of the reservoir.The remaining oil and the movable oil of 15 flow units are obtained by the conversion calculation from the numerical reservoir simulation result to the three-dimensional geological modeling,which can provide the basis for studying the plane and vertical distributions of the remaining oil,and provide the target for developing the remaining oil.