JBN方法的改进及相应的计算与绘图软件

利用ＪＢＮ方法或其改进方法计算油水相对渗透率时，在恒压，恒速或者既不恒压也不恒速的条件下，注入流量的测定与计算十分重要，本文探讨了如何根据累积产液量与累积注入时间精确计算流量的方法。并提出了一种采集实验数据的改进方法，以便提高注入流量的计算精度，同时，讨论了拟合累积产油量以及平均有效粘度的方法，并提出了分段拟合的方法。最后，编制了可分别适用于恒速、恒压以及既不恒速也不恒压３种条件下计算油水相对渗透

IMPROVEMENTS OF JNB METHOD AND ITS SOFTWARE FOR CALCULATING AND PLOTTING

It is very important to measure and calculate the injection rate under the condition of both unconstant pressure and rate when the JBN method or its reformed method is used to calculate the oil-water relative permeabilities. Methods are presented to calculate flow rates accurately according to the accumulative liquid production and injection time. An improved methods of experimental data sampling is described to increase accuracy of flow rate calculation.Moreover, the methods for matching the accumulative oil production and the average effective viscosity are persented in this paper. The software RP2-1 for calculating oil--water relative permeabilities and plotting is worked out. The software is suitable for constant pressure,constant flow rate, both unconstant pressure and flow rate cases.