1990—2000年全球发现的大型油气田

In recent years,a lot of low-resistivity reservoirs were found in Bohai bay,and much of them had high productivity by testing,So it is more and more important for us to identify and evaluate the low-resistivity reservoirs.According to analyses of logging featuresand genesis in these reservoirs,we have developed some identifying methods suitable for Bohai Bay.using these methods,logging data of smoe old wells are checked and analysed.