关键词: 油气储集层, 流动单元, 水驱开发, 物性参数, 动态演化, 四维模型

Abstract: Flow unit is the smallest macro-geological unit in oil and gas reservoir. By the use of laboratory displacement test of core samples with different porous volume factor, logging parameter evaluation data of completed wells in different development period and a number of production performance data, the evolution laws of reservoir's macro-physical property parameters for flow units with different genesis in the course of waterflooding development were studied and analyzed. The mathematical evolution models for each kind of parameters were established. The variation factors for corresponding physical property parameters were found out. The 3-D geological model of working station for establishing software "Earthvision" was used to load variation factor of physical property parameters on the basis of the original 3-D geological parameter models. The data processing and result extraction were made. The four-dimensional dynamic evolution realistic serial models for different flow units in the course of development were developed. So, oil and water flow characteristics and residual oil distribution inside the flow units in different development phases can be predicted with the models.

Key words: oil and gas reservoir, flow unit, waterflooding development, physical property parameter, dynamic evolution, four-dimensional dynamic realistic model