【摘要】 应用毛管压力资料求取油藏原始含油饱和度时 ,需要取得油水界面张力、油水润湿接触角、油水密度等参数。该方法认为 :根据现今状态下的资料可以近似模拟油气成藏时的状况。但在构造运动强烈的断陷盆地中 ,现今油藏的状况与油气成藏时并不完全一致 ,有时相差甚远 ;油气运移的动力与阻力也不能仅考虑浮力与毛管阻力。该文分析了构造运动对这些参数的影响 ,指出在不考虑上述因素的条件下 ,用毛管压力资料求取含油饱和度可能会带来不符合实际的结果。更多还原

【Abstract】 When utilizing capillary pressure data to get the original oil saturation of oil reservoirs, interfacial tension, wetting angle and density of oilwater must be got firstly. This method considered that the nowaday data of reservoirs can nearly simulate the situation of oilgas reservoir forming. However, the conditions of nowadays oil reservoirs are not the same as the forming ones in riftedbasin with intensive tectonic movement, sometimes even has huge differences. The powers and resistance of oilgas migration are not only the buoyant force and capillary resisting force. The influence of tectonic movement on these factors is analyzed in this paper. And it is pointed out that the method will take out unpractical results if neglecting these factors.更多还原