田雨
TIAN Yu

• 1:大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

海拉尔盆地苏德尔特潜山带是勘探突破的重要地区,储层普遍含有凝灰质,盆地改造强烈,断裂系统复杂,导致沉积和成岩环境复杂。通过对苏德尔特潜山带储层微量元素地球化学特征的综合分析和研究指出:w(V)/w(Ni)和w(Sr)/w(Ba)是2个重要的标志性微量元素地球化学特征参数;w(Sr)/w(Ba)大于1时水体变浅,w(V)/w(Ni)较高时富氧程度和酸度增加。结合w(Na_2O)、w(K_2O)和w(TFe)(全铁)的含油气储层元素分析结果和成岩黏土矿物分析结果指出:沉积期为偏酸性和氧化度较高的沉积环境,成岩期为偏碱性的碱性成岩作用环境,这一认识对苏德尔特潜山带储层的石油地质勘探具有重要意义。
Sudeerte buried hill belt is the core area of the exploration breakthrough in Hailar Basin.It is characterized by commonly distributed tuffaceous reservoirs,strong basin reformed and complex faulted system.So the sedimentary and diagenetic environments are very complex.Through the comprehensive analysis and researches on the geochemical properties of the reservoir micro-elements in the belt,w(V) /w(Ni) and w(Sr) /w(Ba) are considered to be two important marking parameters;when w(Sr) /w(Ba) is more than one,the water body becomes shallow,w(V) /w(Ni) is pretty higher,the oxygen enriched degree and acidity rise as well.Combined with the analyses results of the hydrocarbon-bearing reservoir elements and the diagenetic clay minerals with w(Na_2O),w(K_2O) and w(TFe),the sedimentary period is considered to happen in slightly acid and highly oxidized environment and the diagenetic stage belongs to slightly alkali environment.All the understandings stated above possess important significance for the petroleum geology and exploration of the reservoirs in this belt.

关键词(KeyWords)： 潜山带;地球化学;沉积环境;成岩环境;苏德尔特;海拉尔盆地
buried hill belt;geochemistry;sedimentary environment;diagenetic environment;Sudeerte;Hailar Basin

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基金项目(Foundation):

作者(Author): 田雨
TIAN Yu

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