鄂尔多斯盆地中生界成藏组合划分与分布评价

doi:10.11743/ogg20120413

摘要/Abstract

摘要：

对鄂尔多斯盆地中生界三叠系延长组成藏组合进行了系统的划分。在划分过程中,主要根据成藏组合的定义,并充分考虑目的层的:①烃源岩分布和砂体分布;②构造、古构造分布、主要断裂分布及油气运移疏导系统空间分布;③所在成藏组合主要烃源岩分布;④所在成藏组合盖层分布,特别是区域性盖层分布。另外,还考虑目前认识的构造圈闭及可能的其他圈闭分布情况,并分析含油气系统的保存情况。盆地中生界延长组划分为6个成藏组合:长₁₀-长₇下部成藏组合、长₇-长₅中部成藏组合、长₇-长₄₊₅中部成藏组合、长₄₊₅-长₃上部成藏组合、长₄₊₅-长₂上部成藏组合和长₄-长₁上部成藏组合。通过对各组合的生、储、盖层分析,认为中生界成藏组合主要分布在伊-陕斜坡西北部、东南部、西南部和天环坳陷南部。

关键词: 成藏组合, 含油气系统, 中生界, 鄂尔多斯盆地

Abstract:

This paper systematically identifies plays in the Triassic Yanchang Formation of the Mesozoic in Ordos Basin.The play division is mainly based on the play definition and the following characteristics of target beds:(1)distributions of source rocks and sandstone reservoirs;(2)distributions of structures and paleo-structures,main faults and carrier systems;(3)distributions of main source rocks for each play;(4)distribution of seals especially regional seals for each play.In addition,the distribution of known structural traps and other possible structural traps as well as the preservation of petroleum system are also considered to identify play.Six plays were identified in the Triassic Yanchang Formation in Ordos Basin:MemberⅩto Member Ⅶ play,Member Ⅶ to Member Ⅴ play,Member Ⅶ to Member Ⅳ+Ⅴplay,upper of Member Ⅳ+Ⅴ to Member Ⅲ play, Member Ⅳ+Ⅴ to Member Ⅱ play and Member Ⅳ to MemberⅠ play.According to the analysis of source rocks,reservoirs and cap rocks in different plays,the Mesozoic plays are mainly distributed in the northwest and southeast and southwest parts of Yishan slope and the south part of Tianhuan depression.

Key words: play, petroleum system, Mesozoic, Ordos Basin

中图分类号:

TE122.3

苏复义,周文,金文辉,等. 鄂尔多斯盆地中生界成藏组合划分与分布评价[J]. 石油与天然气地质, 2012, 33(4): 582-590. doi: 10.11743/ogg20120413 Su Fuyi,Zhou Wen,Jin Wenhui,et al. Identification and distribution of the Mesozoic plays in Ordos Basin[J]. Oil & Gas Geology, 2012, 33(4): 582-590. doi: 10.11743/ogg20120413

参考文献

[1] 赵文智,何登发.石油地质综合研究导论[M].北京:石油工业出版社,1999:35-121. Zhao Wenzhi,He Dengfa.Introduction of petroleum geology comprehensive study[M].Beijing:Petroleum Industry Press,1999:35-121.
[2] 童晓光,何登发.油气勘探原理和方法[M].北京:石油工业出版社,2001:19,90-142. Tong Xiaoguang,He Dengfa.Principle and method of oil and gas exploration[M].Beijing:Petroleum Industry Press,2001:19,90-142.
[3] White D A.Oil and gas play maps in exploration and assessment[J].AAPG Bulletin,1988,72(7):9480-9493.
[4] White D A.Assessing oil and gas plays in facies-cycle:wedges[J].AAPG Bulletin,1980,64(8):1158-1178.
[5] Crovelli R A,Balay R H.FASP ananalytic resource appraisal program for petroleum play analysis[J].Computers & Geoscience,1986,12(4B):423-475.
[6] 童晓光.论成藏组合在勘探评价中的意义[J].西南石油大学学报,2009,31(6):1-8. Tong Xiaoguang.A discussion on the role of accumulation association in the explortion evaluation[J].Journal of Southwest Petroleum University(Science & Technology Edition),2009,31(6):1-8.
[7] 戴金星,王庭斌,宋岩,等.中国大中型天然气田形成条件与分布规律[M].北京:地质出版社,1997:80-162. Dai Jinxing,Wang Tingbin,Song Yan,et al.Formation conditions and distribution of the large-medium natural gas fields in China[M].Beijing:The Geological Publishing House,1997:80-162.
[8] 李德生.重新认识鄂尔多斯盆地油气地质学[J].石油勘探与开发,2004,31(6):1-6. Li Desheng.Return to petroleum geology of Ordos Basin[J].Petroleum Exploration and Development,2004,31(6):1-6.
[9] 陈永武,何文渊.中国西部含油气盆地石油地质条件的主要认识和勘探方向[J].石油学报,2004,25(6):1-7. Chen Yongwu,He Wenyuan.Some recognitions of the petro- leum geological feature and exploration directions in the western China[J].Acta Petrolei Sinica,2004,25(6):1-7.
[10] 雷振宇,张朝军.鄂尔多斯盆地含油气系统[J].中国石油勘探,1998,3(1):11-15. Lei Zhenyu,Zhang Chaojun.Study of petroleum system in Ordos Basin[J].China Petrleum Exploration,1998,3(1):11-15.
[11] 雷振宇,张朝军,杨晓萍.鄂尔多斯盆地含油气系统划分及特征[J].中国石油勘探,2000,5(3):75-82. Lei Zhenyu,Zhang Chaojun,Yang Xiaoping.Division and distribution of petroleum system in Ordos Basin[J].China Petrleum Exploration,2000,5(3):75-82.
[12] 博锁堂,席胜利,魏新善,等.鄂尔多斯盆地东部上古生界成藏组合特征分析[J].低渗透油气田,2006,11(3):8-11. Fu Suotang,Xi Shengli,Wei Xinshan,et al.Analysis on the characteristics of reservoir-forming combination in Upper Paleozoic of eastern Ordos Basin[J].Low Permeability Oil and Gas Field,2006,11(3):8-11.
[13] 王建麾.鄂尔多斯盆地南缘下古生界成藏组合研究.成都理工大学,2009. Wang Jianhui.Research on play of lower paleozoic in the sou- thern margin of Ordos Basin.Chengdu University of Technology,2009.
[14] 何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,2003:46-105. He Zixin.Evolution and oil and gas of Ordos Basin[M].Beijing:Petroleum Industry Press,2003:46-105.
[15] 罗晓容,张刘平,杨华,等.鄂尔多斯盆地陇东地区长8¹段低渗油藏成藏过程[J].石油与天然气地质,2010,31(6):770-778,837. Luo Xiaorong,Zhang Liuping,Yang Hua,et al.Oil accumulation process in the low-permeability Chang-8¹ member of Longdong area,the Ordos Basin[J].Oil & Gas Geology,2010,31(6):770-778,837.
[16] 付金华,罗安湘,喻建,等.西峰油田成藏地质特征及勘探方向[J].石油学报,2004,25(2):25-29. Fu Jinhua,Luo Anxiang,Yu Jian,et al.Geological features of reservoir formation and exploration strategy of Xifeng Oilfield[J].Acta Petrolei Sinica,2004,25(2):25-29.
[17] 杨华.鄂尔多斯盆地三叠系延长组沉积体系及含油性研究.成都理工大学,2004. Yang Hua.Deposition system and oil accumulation research of Yanchang Formation in Triassic,Ordos Basin.Chengdu University of Technology,2004.
[18] 喻建,宋江海,向惠.鄂尔多斯盆地中生界隐蔽性油气藏成藏规律[J].天然气工业,2004,24(12):35-37. Yu Jian,Song Jianghai,Xiang Hui.Subtle reservior formation law of Mesozoic in Ordos Basion[J].Natural Gas Industry,2004,24(12):35-37.
[19] 喻建,韩永林,凌升阶.鄂尔多斯盆地三叠系延长组油田成藏地质特征及油藏类型[J].中国石油勘探,2001,6(4):13-19. Yu Jian,Han Yonglin,Ling Shengjie.Geological characteristics and reservoir types of the Triassic Yanchang Formation in Ordos Basin[J].China Petroleum Exploration,2001,6(4):13-19.
[20] 长庆油田石油地质志编写组.中国石油地质志(卷12)[M].北京:石油工业出版社,1992:62-70. Drafting Group of Oil Reserves in China.Oil reserves in China(Volume 12)[M].Beijing:Petroleum Industry Press,1992:62-70.
[21] 许建红,程林松,鲍朋,等.鄂尔多斯盆地三叠系延长组油藏地质特征[J].西南石油大学学报,2007,29(5):13-17. Xu Jianhong,Cheng Linsong,Bao Peng,et al.Reservior characteristics of Yanchang Formation in Triassic,Ordos Basin[J].Journal of Southwest Petroleum University(Science & Techno- logy Edition),2007,29(5):13-17.
[22] 丁晓琪,张哨楠,谢世文,等.鄂尔多斯盆地镇泾地区中生界成藏系统[J].石油与天然气地质,2011,32(2):157-164. Ding Xiaoqi,Zhang Shaonan,Xie Shiwen,et al.Hydrocarbon accumulation system of the Mesozoic in Zhenjing oilfield,the Ordos Basin[J].Oil & Gas Geology,2011,32(2):157-164.
[23] 梁宇,任战利,王彦龙,等.鄂尔多斯盆地子长地区延长组流体包裹体特征与油气成藏期次[J].石油与天然气地质,2011,32(2):182-191. Liang Yu,Ren Zhanli,Wang Yanlong,et al.Characteristics of fluid inclusions and reservoiring phases in the Yanchang Formation of Zichang area,the Ordos Basin[J].Oil & Gas Geology,2011,32(2):182-191.