层序地层格架中含油气系统及其分类探讨——以查干凹陷下白垩统K_1b K_1s(!)含油气系统为例

层序地层学和含油气系统分析方法的研究目的、研究内容甚至研究方法很大程度上都是相互叠合、相互传承、相互补充的。把层序地层学和含油气系统分析方法整合起来,在层序地层格架中进行含油气系统研究的石油地质综合研究方法称为含油气层序系统分析方法(或技术)(Petroleum SequenceSystem Analysis Method/Technique),该方法建立的层序格架称为含油气层序格架,划分的含油气系统称为含油气层序系统。对含油气层序系统的确定和划分进行了探讨,分别按成因演化史、空间分布样式及层序级别等对含油气层序系统进行分类,进而进行复合划分,从而指出了层序地层格架中含油气系统研究的思路,并以查干凹陷下白垩统K1b-K1s(!)含油气层序系统为例进行了说明。

Hydrocarbon System in the Sequence Stratigraphic Framework and Its Classification

Sequence stratigraphic and petroleum system analysis methods are mutually overlapped,inherited and reinforced to a great extent,so it is feasible to integrate the two analytical methods for integrated petroleum geological studies of basins or study areas.For the conveniences of describing this method,the petroleum system is studied within the sequence framework,it is suggested that this method can be entitled "hydrocarbon sequence system analytic method".The sequence framework established by this newly entitled method can be called petroleum sequence system.The petroleum sequence systems can be classified specifically according to the genesis evolution,the distribution modes and the sequence orders,and then can be classified with these right three elements and also others,followed by an example from Chagan depression.