张方吼
Zhang Fanghou(Institute of Exploration & Development;

• 1:大庆石油管理局勘探开发研究院

摘要(Abstract)：

本文从介绍齐家—古龙凹陷和龙虎泡—红岗阶地北半部的生油条件入手，以葡萄花油层为例，描述了该区的储集层分布状。态在叙述了被三级构造复杂化的两个二级构造单元之后，进一步分析了三级构造与砂层发育带在空间分布上的重叠性、储油物性、以及地层压力等特性，目的是掌握油气二次运移赖以进行的地质背景。在此基础上，分别对主要油源层的青二、三段和主要储集层葡萄花油层地化指标分布状态，和二者之间的分异性进行了研究。发现生油岩指标从南向北沿凹陷轴，和东西方向垂直于凹陷轴的两翼逐渐变差。而储集层指标则由凹陷轴向两侧，逐渐变好，这就显现了油气二次运移的总体方向，从凹陷中的向斜—马鞍构造—鼻状构造—阶地上的龙虎泡背斜（及大庆长垣），上述路线，使反映了油气二次运移的主要路径。
ABSTRACT In the paper, the conditions for oil generation in Qijia-Gulong Sag and northern Long Hupao-Honggang terrace are introduced. Taking Putaohua formation as an example, the distribution of reservoir rocks in this area has been described. After describing the two second-order structural units complicated by third-order structures, some characteristics such as the overlap property in spatial distribution of third-order structures and the sands developed belts, reservoir properties and formation pressure etc. are further analysed with the purpose of understanding the geological background for secondary migration of hydrocarbon. On the basis of those mentioned above, geochemical index distribution of the main source rocks (Members Qing2, 3) and the main reservoir rocks (i.e. the Putaohua reservoir)are studied as well as the differentiation between the two rocks. It has been found that the indexes of source rocks became poorer along the sag axis from south to north and along the two flanks vertical to the sag axis in east-west direction, while the indexes of reservoir became better from the sag axis to the two flanks, indicating the general trend of hydrocarbon secondary migration, that is from the syndines in the sag-saddle-structure nose-the Longhupao anticline (or Daqing Placanticline). The trend, thus, indicated the main path of secondary migration of hydrocarbon.

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Abstract:

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作者(Authors): 张方吼
Zhang Fanghou(Institute of Exploration & Development;

DOI: 10.19597/j.issn.1000-3754.1987.04.002

参考文献(References)：

• 〔1〕杨万里等：松辽湖盆的生油特征及烃类演化，《松辽陆相盆地石油地质》，石油工业出版社，1985。