For the purpose of finding new targets of oil-gas exploration in Ordos Basin,nitrogen compounds distribution in crude oil of Chang7 to Chang10 formation was systematically discussed for the discovery of petroleum migration law.Migration fractionation of neutral nitrogen compounds in the crude oil of Yangchang formation was presented distinctly in the lateral and vertical directions of the oilfield.The migration parameters of nitrogen compounds show that petroleum in the research area mainly migrated from we...
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