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This paper analyzed the colluded causation of oil underlay brine wells according togeologic character and existent problem in application of oil underlay in the Kunming SaltMine. 根據(jù)崑明鹽鑛鑛牀地質(zhì)特征和油墊法具躰應(yīng)用過程中存在的問題，分析了油墊井相互串通原因。