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在研究原油通过断裂带渗滤运移机制及主要影响因素的基础上,利用自行设计组装的模拟实验装置,对原油通过不同粒度、泥质含量和倾角的断裂带的渗滤运移特征进行了物理模拟。结果表明,原油通过断裂带的运移速度与断裂带充填物颗粒粒度和断裂带倾角成正比,与断裂带充填物泥质含量成反比;泥质含量是决定原油通过断裂带是否发生渗滤运移的主控因素。利用原油通过断裂带运移速度的大小,可以研究原油沿断裂带运移情况。以车古20潜山油藏断裂为例,利用模拟实验结果,计算了原油通过主要断裂的运移速度,研究了原油通过断裂带渗滤运移的特征,阐明了断裂在车古20潜山油藏油气运聚成藏中的作用。
Based on the study of the mechanism of percolation and migration of crude oil through the fracture zone and its main influencing factors, the characteristics of the percolation and migration of the crude oil through fault zones with different grain sizes, muddy contents and dip angles were studied by means of a simulated experimental device designed and assembled by ourselves Physical simulation. The results show that the migration velocity of crude oil through the fault zone is proportional to the particle size of the fault zone and the dip angle of the fault zone, and is inversely proportional to the mud content of the fault zone fill material. The mud content determines whether the crude oil is percolated through the fault zone Move the main control factor. Crude oil migration along the fault zone can be studied using the magnitude of migration velocity of crude oil through the fault zone. Taking the fracture of the Chegu 20 buried hill reservoir as an example, the migration speed of the crude oil through the main fault was calculated by simulation results. The characteristics of the oil migration through the fault zone were studied. The role of reservoir in hydrocarbon accumulation and accumulation.