陈家洼陷沙三段砂体沉积及其与油气的关系
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摘要
陈家洼陷沙三段砂泥比值低,冲积扇、浊积扇及滑塌砂体等较发育,暗色泥岩成熟度较高,具有发育地层-岩性油气藏的潜力。但前人没有对沙三下亚段进行过精细层序划分,砂体成因类型分析更是少见,不能满足寻找隐蔽油气圈闭的需要。因此,在地震、钻测井及岩心资料分析研究的基础上,应用地质地球物理综合预测了沙三下亚段主要的砂体分布特征及发育模式,并探讨砂体与油气的关系,对陈家洼陷下一步的勘探提供了依据。
In Sha No.3 Member of Chenjia Sag,the sand-and-mud ratio is low,alluvial fan,turbidite fan,slump sand body and so on are well developed,the maturity of dark mudstone is pretty high,so the potential of developing stratigraphic -lithological petroleum reservoir is favorite.But the fine stratigraphic division for the lower submember of Sha No.3 Member has not been done by our predecessors and moreover the analysis of the genesis type of sand body is rare to see,so the conditions stated above cannot meet the requirements of seeking lithological petroleum traps.Therefore on the basis of analysis and study of seismic,drilling,testing and core data,by integrating geology and geophysics,the distribution characteristics and development mode of main sand bodies in this submember can be comprehensively predicted. In addition,the relation between sand body and petroleum has been discussed.All the studied results possess a certain guiding significance for the further exploration of Chenjia Sag.
In Sha No.3 Member of Chenjia Sag,the sand-and-mud ratio is low,alluvial fan,turbidite fan,slump sand body and so on are well developed,the maturity of dark mudstone is pretty high,so the potential of developing stratigraphic -lithological petroleum reservoir is favorite.But the fine stratigraphic division for the lower submember of Sha No.3 Member has not been done by our predecessors and moreover the analysis of the genesis type of sand body is rare to see,so the conditions stated above cannot meet the requirements of seeking lithological petroleum traps.Therefore on the basis of analysis and study of seismic,drilling,testing and core data,by integrating geology and geophysics,the distribution characteristics and development mode of main sand bodies in this submember can be comprehensively predicted. In addition,the relation between sand body and petroleum has been discussed.All the studied results possess a certain guiding significance for the further exploration of Chenjia Sag.
引文
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[2]张金亮,杨自成,司学强.辽河油田西部凹陷沙三段沉积相及演化[J].西北地质,2004,37(4):7-14.
[3]郭彦民,孙兆宽,张瑞斌,等.陈家洼陷沙三中亚段精细构造解释及储层评价[J].特种油气藏,2001,8(1):13-20.
[4]贾承造,刘德来,赵文智,等.层序地层学研究进展[J].石油勘探与开发,2002,29(5):1-4.
[5]李群,王英民,宋国奇.层序地层学在陆相斜坡带隐蔽油气藏勘探中的应用[J],大庆石油地质与开发,2002,21(3):12-15.
[6]王英民.对层序地层学工业化应用中层序分级混乱问题的探讨[J].岩性油气藏,2007,19(1):9-15.
[7]张宏达.层序地层学及其应用[M].北京:石油工业出版社, 1989.
[8]赵玉光,王剑,唐锦玉,等.层序界面及其附近的地质特征与地质过程的表现[J].地质学报,1997,71(4):374-380.
[9]秦月霜,陈显森,王彦辉.用优选后的地震属性进行储层预测[J].大庆石油地质与开发,2000,19(6):44-46.
[10]Lowell J D.Structural Styles in Petroleum Exploration[M].Tulsa: Oil and Gas Consultants International Inc.,1985.
[11]王英民,刘豪,李立诚,等.准噶尔大型坳陷湖盆坡折带的类型和分布特征[J].地球科学(中国地质大学学报),2002,27 (6):683-68.
[12]王英民,金武弟,刘书会,等.断陷湖盆多级坡折带的成因类型、展布及其勘探意义[J].石油与天然气地质,2003,24 (3):199-205.
[13]张善文,王英民,李群.应用坡折带理论寻找隐蔽油气藏[J].石油勘探与开发,2003,30(3):5-8.
[14]李群.陆相盆地坡折带的隐蔽油气藏勘探战略[J].地质论评,2003,49(4):445-449.
[15]袁书坤,王英民,陈振岩,等.逆源坡折带的控砂作用——以陈家洼陷沙三段地层为例[J].岩性油气藏,2007,19(3): 54-59.
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