裂缝性低渗透砂岩油藏测井渗透率校正

A New Method Revising Logging Permeability of Fractured Low-permeability Sand Reservoir

针对裂缝性低渗透砂岩油藏普遍存在的测井渗透率与油田开发实际渗透率差异较大的矛盾,研究提出了利用压力恢复试井渗透率资料对测井渗透率的约束校正方法,建立了测井渗透率动态校正模型。对吉林新立油田裂缝性低渗透砂岩油藏进行测井渗透率校正应用研究表明,应用测井渗透率校正结果建立的地质模型更加符合油田开发实际状况。

Because big difference exists between logging permeability and true permeability ot fractured low-permeability sand reservoir, a new method is proposed to revise the logging permeability. The logging permeability is corrected with pressure test data in the method. Built is dynamic correcting model for the logging permeability. This method has been successfully used to revise the permeability of fractured low-permeability sand reservoir in Xinli oilfield. Log practice shows that the geologic model based on the permeability correction is adaptable to the real reservoir evaluation.