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本文介绍了多类训练迭代法计算的基本原理和计算过程．将此法成功地应用于某沉积盆地的含油气有利圈闭的预测，结果表明未钻探的３８个圈闭共分３类，其中１０个圈闭为Ｉ类，８个圈闭为Ⅱ类，其余的２０个圈闭为Ⅲ类．从而为该区油气的进一步勘探和提高钻井成功率提供了理论依据．
This paper introduces the basic principles and calculation process of many kinds of training iterative method. This method was successfully applied to the prediction of hydrocarbon-bearing favorable traps in a sedimentary basin. The results showed that the 38 traps that were not drilled were divided into three types, of which 10 were trapped as Class I and 8 as Class II, The remaining 20 traps are Class III. This provides a theoretical basis for the further exploration of oil and gas in the area and the improvement of drilling success rate.