关井早期采点密度与油藏模型识别

Identification of Sampling Density at Early Time of Close Well and Reservoir Model

在关井压力恢复的早期阶段,一般地面所设置的压力计采点密度,难以适时的"捕捉"到井下由流动转入关井瞬间状态的早期压力恢复数据点。以实例验证关井早期压力恢复数据采样点加密前后,关井早期至油藏各个阶段的油藏模型拟合对比效果,关井早期采点密度对一般均质、非均质和裂缝性油藏模型的影响,以及识别具有裂缝性油藏特征试井资料的诊断分析。

During the early stage of the build-up pressure to shut-in well,the pressure sampling density generally set at surface is difficult to capture the down-hole data point of early buildup pressure timely at the instantaneous state from the flow stage to shut-in well.It is tested by examples of the fitting contrast effect to reservoir model before and after sampling point encryption of pressure recovery data of the early close well,and from early stages of shut in well to every stages of reservoir,influence on reservoir model of the general homogeneous,heterogeneous and fractured of early sampling density of close well,and diagnosis and analysis of identifying well testing data of fractured reservoir characteristics.