Study on Maturity of Crude Oil Distributed in West Slope of Dongpu Depression Using Aromatic Compounds
- Received Date: 2004-03-09
- Rev Recd Date: 2004-09-09
- Publish Date: 2005-06-10
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Key words:
- aromatic compounds /
- maturity indicator /
- Dongpu depression
Abstract: The characteristic for the thermal evolution of aromatic maturity parameter, such as alkyl dibenzothio-phenes, dehydroxytocopherol and triaromatic-sterane series compounds have been discussed on the basis of GC-MS analysis for the crude oil in Huzhuangji-Qingzuji oil field in west slope of Dongpu depression. The distribution characteristics of aromatic chromatography, the ratio of β/γdehydroxytocopherol,4-/1-MDBT, 2,4- /1,4-DMDBT, C20 / (C20 +C26 ) TAS and the content of triaromatic-sterane series all suggest the crude oil distributed in second step structural derived from low maturity source rocks, whereas the crude oil distributed in Changyuan fault zone and the first step structural derived from maturity source rocks.
Citation: | Li Lin-qiang, Lin Ren-zi. Study on Maturity of Crude Oil Distributed in West Slope of Dongpu Depression Using Aromatic Compounds[J]. Acta Sedimentologica Sinica, 2005, 23(2): 361-366. |