复合区域形态对试井曲线的影响

Influence of Recombination Zone Morphology to Well Test Curve

解析试井只能对径向复合、线性复合等情形进行计算,对非均质性的处理十分有限,它只能把复杂的非均匀性等效为径向复合、线性复合。通过UST数值试井软件,研究不同非均质性对试井曲线的影响。结果表明复合区域的形状与位置明显影响着压降导数曲线的形态,因而解析试井简单的使用径向复合、线性复合进行非均质解释存在误差。

Analytical well test can simulate the radical composite and linear composite.Therefore,its software has limited ability to simulate heterogeneity,which simplifies the heterogeneity into radical composite or linear composite.The UST numerical well test is used to study effect of different form of the heterogeneity on the well test curves.The results show that the shape and position of composite region have influence on the characteristic of well test curves.Therefore there exist error when the analytical well test use the radical composite and linear composite to deal with the heterogeneity.