陈家庄凸起北坡古近系层序地层特征及沉积体系
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摘要
陈家庄凸起北坡发育了多种类型的储集体.根据岩心、钻井和测井资料,以层序地层学理论和方法为指导,从分析、识别层序的主要界面,如层序界面、初始湖泛面、最大湖泛面等入手,对陈家庄凸起北坡古近系层序、准层序和体系域进行了划分.通过钻井层序分析与地震层序解释,在层序地层分析的基础上,对沉积体系进行了研究.指出本区发育的低位域水下扇、低位域复合扇、湖扩展体系域滨岸沉积和高位域三角洲沉积等,是进行岩性油藏勘探的有利目标.
There is a variety of reservoir types in the north slope of Chenjiazhuang Uplift. We analyzed the stratigraphic sequences and water level systems of the north slope of Chenjiazhuang Uplift in way of determining the interfaces between sequences, the initial flooding surfaces and the maximum flooding surfaces with the general theory and method of sequence stratigraphy and data of core, wells and logs. On the basis of sequence analysis in wells and seismic explanation, we studied the sedimentary system. In this paper we suggested that the subaqueous fans and fan complex formed in lowstand systems tract, the lakeshore facies formed in transgresive lowstand systems tract and deltaic deposits formed in highstand systems tract are the main objects of exploration for stratigraphic reservoirs.
There is a variety of reservoir types in the north slope of Chenjiazhuang Uplift. We analyzed the stratigraphic sequences and water level systems of the north slope of Chenjiazhuang Uplift in way of determining the interfaces between sequences, the initial flooding surfaces and the maximum flooding surfaces with the general theory and method of sequence stratigraphy and data of core, wells and logs. On the basis of sequence analysis in wells and seismic explanation, we studied the sedimentary system. In this paper we suggested that the subaqueous fans and fan complex formed in lowstand systems tract, the lakeshore facies formed in transgresive lowstand systems tract and deltaic deposits formed in highstand systems tract are the main objects of exploration for stratigraphic reservoirs.
引文
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[4] 张忠信,庄博．陈家庄-罗家地区各含油层系分层评价[A]．油气地质地 球物理综合勘探技术[C].北京:地震出版社,1998．116-143．
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[6] 潘元林,宗国洪,郭玉新,等．济阳断陷湖盆层序地层学及砂砾岩油气 藏群[J]．石油学报,2003,24(3):16-23．
[2] 宋国奇．济阳坳陷下第三系湖相沉积的层序地层学分析[J]．现代地 质,1993,7(1):7-13．
[3] 王秉海,钱凯．胜利油区地质研究与勘探实践[M]．东营:石油大学出版 社,1992．
[4] 张忠信,庄博．陈家庄-罗家地区各含油层系分层评价[A]．油气地质地 球物理综合勘探技术[C].北京:地震出版社,1998．116-143．
[5] 威尔格斯C K．层序地层学原理-海平面变化综合分析[M]．北京:石 油工业出版社,1991．
[6] 潘元林,宗国洪,郭玉新,等．济阳断陷湖盆层序地层学及砂砾岩油气 藏群[J]．石油学报,2003,24(3):16-23．
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