Liquid chromatographic separation, gas chromatography were used to characterize the crude oil and extract samples collected from different oilfields in North Western Desert Egypt namely: Meleiha, Misaada and Qarun oilfields to confirm the indigenous sources for the petroleum generation of the oilfields. The mentioned parameters have been used for the relation between the produced oils and the potential source rocks showed that the there is a good correlation between the extract samples of Bahariya and Khatatba formations and crude oils from Qarun and Misaada oilfields. While the extract of Kharita source rocks and Meleiha oil shows no correlation. These evidences indicate that Bahariya and Khataba source rocks seem to be act as a source and reservoirs for oil generation in the Qarun and Misaada oilfields.
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