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运用无机地球化学元素示踪方法,对储层方解石胶结物中的MnO含量变化趋势进行了分析,就准噶尔盆地莫索湾-莫北地区的油气运移方向开展比较系统地研究,揭示了盆1井西凹陷、昌吉凹陷和东道海子北凹陷的油源对该区都有贡献,但在油源组成、充注范围和强度上有所不同,可以划分出3个成藏体系:盆1井西凹陷-东环带、昌吉凹陷-莫索湾、东道海子北凹陷北坡成藏体系,并认为莫索湾凸起的南东翼和东道海子北凹陷的西北斜坡区是有利探勘区域。
Using inorganic geochemical element tracing method, the trend of MnO content in calcite cements of the reservoir was analyzed, and the hydrocarbon migration direction in the Mosoowan-Mobei area of Junggar Basin was systematically studied. The oil sources in Jingxi Depression, Changji Depression and Dongdao Haizi Bei Sag contribute to this area. However, they differ in oil source composition, filling range and intensity, and can be divided into three reservoir forming systems: Depression - East Ring, Changji Sag - Moso Bay, and the northern slope of Haizi Bei Sag in Dongdao area. It is considered that the south east wing of Moso Bay and the northwestern slope of Haizi Bei Sag of Dongdao are favorable prospecting areas.