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Abstract Ansai Oilfield is one of the earliest discovered oilfields in the Ordos Basin. In this paper, based on the scientific exploration and exploitation, the geochemical characteristics of the Chang… Click to show full abstract
Abstract Ansai Oilfield is one of the earliest discovered oilfields in the Ordos Basin. In this paper, based on the scientific exploration and exploitation, the geochemical characteristics of the Chang 2 crude oil and potential source rocks were analyzed using gas chromatography–mass spectrometry method. The correlation of biomarkers showed that the parent materials of the Chang 2 crude oil formed in freshwater-mildly brackish water environment and were sourced from low-grade aquatic organisms and terrigenous higher plants. Oil-source correlation results showed that the Chang 2 crude oil in Ansai area was derived from the source rocks of Chang 7.
Journal Title: Petroleum Science and Technology
Year Published: 2018
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