论文部分内容阅读
X绘图技术可预测原油采收率,并能获得确定驱替效率的需的分相流动曲线和相对渗透率曲线。在埃及的El-MorganSouthKareem和SouthBelayim油藏;给出了该方法的两个矿场应用实例。自1987年以来,这两个油藏的采出液含水量均大于50%。X绘图技术适用于采出水大于50%的油藏,只是需要对采油率与含水量之间的关系曲线进行线性化处理。处理后的直线允许外推到任何预期的含水量,以得到相应的采油率。对直线进行线性回归处理之前;可能需要对生产数据进行过滤和检验,确定其是否有用。采用该直线的斜率和截距作一条曲线,确定相对渗透率,从而构成产生分相流动曲线的基础。除了预测采收率之外;所产生的相对渗透率和分相流动曲线,与实验室推导出来的不一样。是复合曲线。他们不但受流体驱替特征的影响,而且还受油气藏几何形状、非均质性。以及油田作业的影响。因此,产生的分相流动曲线可用作实验室测量时的质量检验工具。
X-ray lithography predicts oil recovery and provides the required phase-split flow and relative permeability curves that determine the displacement efficiency. El-Morgan SouthKareem and SouthBelayim reservoirs in Egypt; two examples of mine applications for this method are given. Since 1987, both reservoirs have produced more than 50% water. The X-plotting technique is suitable for reservoirs with more than 50% of produced water, but requires a linearization of the relationship between oil recovery and water content. The straight line after treatment allows extrapolation to any desired water content to obtain the corresponding recovery rate. Before performing a linear regression on a straight line; Production data may need to be filtered and verified to determine if it is useful. Using the slope and intercept of the line as a curve, the relative permeability is determined and thus forms the basis for the generation of a split-phase flow curve. In addition to predicting recovery, the relative permeability and phase-flow curves produced are not the same as those derived from the laboratory. Is a compound curve. Not only are they affected by fluid-displacement features, but they are also affected by the geometry and heterogeneity of the reservoir. As well as the impact of field operations. Therefore, the resulting split-phase flow curve can be used as a quality inspection tool for laboratory measurements.