Discussion on Oil Mixing and Calculation of Mixingratio in Niuzhuang to Bamianhe Area, Dongying Depression
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2007-10-10
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Key words:
- Niuzhuang SubDepression /
- Bamianhe oilfield /
- mixed oil /
- mixing ratio /
- biomarker /
- aromatic sterene
Abstract: It has been performed that investigating the mixed oil in reservoirs from Niuzhuang to Bamianhe oilfield with organically geochemical method. Using mature oil in Niuzhuang oilfield from Es3 source rocks and lowmature oil in Bamianhe oilfield from Es4 source rocks as two end members, to make cross plots of gammacerane/C30hopanoid ratio and hopanoid/sterane ratio, rearranged monoaryl sterane/C27βS monoaryl sterane ratio and the content of aromatic sterene, then calculated the oil mixed rate based on the cross plots. The result indicated that the mixing ratio of oil from Es4 source rocks step up from Niuzhuang subdepression to Bamianhe oilfield, and got similar data from two cross plots. Mature oil form Es3 source rocks dominated in the centre of Niuzhuang subdepression, low mature oil from Es4 source rocks dominated in Bamianhe oilfield, and two type oil mixed in Wangjiagang oilfield.
Citation: | ZHENG Yabin. Discussion on Oil Mixing and Calculation of Mixingratio in Niuzhuang to Bamianhe Area, Dongying Depression[J]. Acta Sedimentologica Sinica, 2007, 25(5): 795-799. |