介绍了模拟近井地带性质恶化的不同方法,及近井地带对描述油井产量变化的主要参数,比如,相对生产能力和趋肤因子的影响。用引入的阶跃函数,为不可压缩地层计算了渗透率沿半径的变化量;对可压缩地层的孔隙型和裂缝型储油层,分析了渗透率与压力的关系曲线,获得了描述压缩性的系数的变化范围。 Different methods to simulate the deterioration of near-field zones are introduced, along with the main parameters of near-well zones for describing changes in oil production, such as relative productivity and skin factor. With the introduced step function, the variation of permeability along the radius was calculated for the incompressible formation. For the pore type and fractured reservoirs of compressible formation, the relationship between permeability and pressure was analyzed, and the compressibility The range of coefficient changes.