油层污染评价模型及其应用

采用不稳定试井法，室内常规岩芯或特殊岩芯分析法评价油层污染是有效的，其缺点是周期长，成本高，测试条件苛刻，在充分利用侧井信息的基拙上，结合钻井、试井、岩芯及工程资料，本文建立了油层污染测井评价模型，并应用该模里对某地区的油气层污染程度进行了定性和定量评价，分析了其规律。

A LOGGING EVALUATION MODEL AND ITS APPLICATION TO DAMAGED FORMATIONS

There are a lot of short comings,such as long period,high cost and harsh condition of test in evaluatiing damaged formations by the method of unstable well testing,or normal method in room,or particular core analysis.On the basis of combing with the data form drilling,well testing,core analysis and engineering,we evaluated and analysised the damages degree of formations according to the logging evaluation method in this paper.In the course of the study,we took full use of logging information.After evaluation the damaged formation quantittatively,we discussed the law concerned.