鄂尔多斯盆地中生界低幅度隆起构造成因类型及其对油气分布的控制作用
|
摘要
以往鄂尔多斯盆地中生界油气勘探主要强调在烃源岩范围之内寻找主砂带,很少注意构造对油藏的控制作用,但近年来,在鄂尔多斯盆地内部却发现了不少受低幅度隆起构造控制的油气藏。利用最新地震勘探与钻井资料,在大量野外露头调查、钻井岩心观察及地震剖面解释的基础上,对鄂尔多斯盆地中生界低幅度构造空间分布、形成机制及其与油气成藏的关系进行了深入分析。研究结果表明:(1)鄂尔多斯盆地天环坳陷东、西斜坡均存在大量有规律分布的低幅度隆起构造,其中延长组内沿近东西向、成排展布的大型低幅度鼻状隆起构造主要受基底古突起控制,而延长组与延安组内的局部隆起构造主要受断层相关褶皱、差异压实及复合成因等多重作用控制;(2)低幅度构造对天环坳陷东、西斜坡中生界油气成藏均有影响,其中大型低幅度鼻状隆起构造为油气大面积聚集提供了构造背景,因而其附近的局部隆起构造及非构造圈闭均是油气聚集成藏的有利部位。
The oil and gas exploration of Ordos Basin in Mesozoic was mainly in the range of hydrocarbon source rocks for the main sandy belt,and little attention was paid to the control of the construct reservoirs in the past. But in recent years,within the Ordos Basin,it was found that a considerable number of oil and gas reservoirs were controlled by the low amplitude uplifted structure. In this paper,on the basis of the latest seismic exploration and drilling data,outcrop survey,observation of drilling cores and seismic profiles interpreted,we conduct in-depth analysis on the distribution of low amplitude structural space,formation mechanism and hydrocarbon accumulation relationship in Mesozoic of the Ordos Basin. The results show that: (1) In the east and west slopes of Tianhuan Depression,Ordos Basin,there are a large number of low-amplitude uplift structures with regular distribution,in which the large-scale distribution of low amplitude nose-shaped uplift structure nearly east-west along the rows is mainly controlled by paleo-protuberance in Yanchang Formation,and the local uplift structures of Yanchang and Yan'an formations are mainly controlled by the fault-related fold,differential compaction and composite geneses; (2) The low amplitude structures affects both east and west slopes of the Mesozoic oil and gas accumulation in the Tianhuan Depression,in which large low-amplitude nose-shaped uplift structure provides a large area of the oil and gas gathering tectonic setting,and near the locals,the uplift structure and non-structural traps are favorable parts of the oil and gas accumulation. The article also pointed out that seismic exploration and basic geological research should be vigorously strengthened.
The oil and gas exploration of Ordos Basin in Mesozoic was mainly in the range of hydrocarbon source rocks for the main sandy belt,and little attention was paid to the control of the construct reservoirs in the past. But in recent years,within the Ordos Basin,it was found that a considerable number of oil and gas reservoirs were controlled by the low amplitude uplifted structure. In this paper,on the basis of the latest seismic exploration and drilling data,outcrop survey,observation of drilling cores and seismic profiles interpreted,we conduct in-depth analysis on the distribution of low amplitude structural space,formation mechanism and hydrocarbon accumulation relationship in Mesozoic of the Ordos Basin. The results show that: (1) In the east and west slopes of Tianhuan Depression,Ordos Basin,there are a large number of low-amplitude uplift structures with regular distribution,in which the large-scale distribution of low amplitude nose-shaped uplift structure nearly east-west along the rows is mainly controlled by paleo-protuberance in Yanchang Formation,and the local uplift structures of Yanchang and Yan'an formations are mainly controlled by the fault-related fold,differential compaction and composite geneses; (2) The low amplitude structures affects both east and west slopes of the Mesozoic oil and gas accumulation in the Tianhuan Depression,in which large low-amplitude nose-shaped uplift structure provides a large area of the oil and gas gathering tectonic setting,and near the locals,the uplift structure and non-structural traps are favorable parts of the oil and gas accumulation. The article also pointed out that seismic exploration and basic geological research should be vigorously strengthened.
引文
[1]杨俊杰.鄂尔多斯盆地构造演化与油气分布规律[M].北京:石油工业出版社,2002:20-70.
[2]长庆油田石油地质志编写组.中国石油地质志:十三卷[M].北京:石油工业出版社,1992:1-150.
[3]汪泽成,王玉新.鄂尔多斯西缘马家滩滑脱型冲断构造[J].石油与天然气地质,1996,17(3):221-224.
[4]张莉.陕甘宁盆地储层裂缝特征及形成的构造应力场分析[J].地质科技情报,2003,22(2):21-24.
[5]赵文智,胡素云,汪泽成,等.鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J].石油勘探与开发,2003,30(5):1-5.
[6]潘爱芳,赫英,马润勇.鄂尔多斯盆地基底断裂的环境地球化学效应[J].水土保持通报,2006,26(2):9-11.
[7]邸领军.鄂尔多斯盆地储集层物性断裂对超低渗油气藏的控制作用[J].石油勘探与开发,2006,33(6):667-670.
[8]南郡祥,王素荣,姚卫华,等.鄂尔多斯盆地陇东地区延长组长6-8特低渗透储层微裂缝研究[J].岩性油气藏,2007,19(4):40-44.
[9]曾联波,李忠兴,史成恩,等.鄂尔多斯盆地上三叠统延长组特低渗透砂岩储层裂缝特征及成因[J].地质学报,2007,81(2):174-180.
[10]李士祥,邓秀芹,庞锦莲,等.鄂尔多斯盆地中生界油气成藏与构造运动的关系[J].沉积学报,2010,28(4):798-807.
[11]张雪峰,赵彦德,张铭记.鄂尔多斯盆地西南缘延长组存在差异构造运动的地质意义[J].岩性油气藏,2010,22(3):78-82.
[12]赵靖舟,武富礼,闫世可,等.陕北斜坡东部三叠系油气富集规律研究[J].石油学报,2006,27(5):24-34.
[13]赵靖舟,杨县超,武富礼,等.论隆起背景对鄂尔多斯盆地陕北斜坡区三叠系油藏形成和分布的控制作用[J].地质学报,2006,80(5):648-655.
[14]王仲应,庞正宽,李春玉.鄂尔多斯盆地东南部中生界油气成藏条件分析[J].断块油气田,1996,3(4):9-14.
[15]席胜利,刘新社,王涛.鄂尔多斯盆地中生界石油运移特征分析[J].石油实验地质,2004,26(3):229-235.
[16]牟泽辉,朱宏权,张克银,等.鄂尔多斯盆地南部中生界成油体系[M].北京:石油工业出版社,2001:120.
[17]周瑞,胡学智.鄂尔多斯盆地西北部灵盐定地区油藏类型及其控制因素[J].石油实验地质,2001,23(4):390-394.
[18]王平,周义,季海锟.靖安油田北东区局部构造与石油富集关系研究[J].长安大学学报:地球科学版,2003,25(4):9-12.
[19]杨华,包洪平.鄂尔多斯盆地奥陶系中组合成藏特征及勘探启示[J].天然气工业,2011,31(12):11-20.
[20]杨俊杰,张伯荣.陕甘宁盆地东部巨型重力高成因及其勘探意义[J].石油勘探与开发,1989,16(6):11-17.
[21]张进,张庆龙,任文军.断层相关褶皱——鄂尔多斯盆地中的新构造样式[J].石油实验地质,1999,21(1):61-65.
[22]任文军,张进,张庆龙,等.鄂尔多斯盆地中断层相关褶皱及其分布[J].江苏地质,2000,24(1):18-22.
[23]解国爱,肖文霞,张庆龙,等.鄂尔多斯盆地西南缘断层相关褶皱与油气圈闭构造[J].高校地质学报,2001,7(3):272-278.
[24]杨华,张文正.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用——地质地球化学特征[J].地球化学,2005,34(2):147-154.
[25]段毅,于文修,刘显阳,等.鄂尔多斯盆地长9油层组石油运聚规律研究[J].地质学报,2009,83(6):855-860.
[26]王菁,刘震,朱文奇,等.鄂尔多斯盆地姬塬地区长7段泥岩古孔隙度恢复方法研究[J].现代地质,2012,26(2):384-392.
[27]赵惊蛰,李健,刘颖梅.陕北浅油藏成藏规律及其开发前景[M]//长庆油田公司勘探开发研究院.鄂而多斯盆地油气勘探开发论文集(1990-2000).北京:石油工业出版社,2000:353-360.
[28]李书恒,魏玉平,刘莉莉.靖安油田长2层油井产出特征及其影响因素分析[M]//长庆油田公司勘探开发研究院.鄂而多斯盆地油气勘探开发论文集(1990-2000).北京:石油工业出版社,2000:326-332.
[29]李相博,刘化清,陈启林,等.鄂尔多斯盆地天环坳陷迁移演化与坳陷西翼油气成藏[J].地质科学,2010,45(2):490-499.
[30]LI Xiangbo,LIU Huaqing,WANYAN Rong,et al.Tectonic Evolution of the Tianhuan Depression and the Western Margin of the Late Triassic Ordos[J].Acta Geologica Sinica,2009,83(6):1136-1147.
[2]长庆油田石油地质志编写组.中国石油地质志:十三卷[M].北京:石油工业出版社,1992:1-150.
[3]汪泽成,王玉新.鄂尔多斯西缘马家滩滑脱型冲断构造[J].石油与天然气地质,1996,17(3):221-224.
[4]张莉.陕甘宁盆地储层裂缝特征及形成的构造应力场分析[J].地质科技情报,2003,22(2):21-24.
[5]赵文智,胡素云,汪泽成,等.鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J].石油勘探与开发,2003,30(5):1-5.
[6]潘爱芳,赫英,马润勇.鄂尔多斯盆地基底断裂的环境地球化学效应[J].水土保持通报,2006,26(2):9-11.
[7]邸领军.鄂尔多斯盆地储集层物性断裂对超低渗油气藏的控制作用[J].石油勘探与开发,2006,33(6):667-670.
[8]南郡祥,王素荣,姚卫华,等.鄂尔多斯盆地陇东地区延长组长6-8特低渗透储层微裂缝研究[J].岩性油气藏,2007,19(4):40-44.
[9]曾联波,李忠兴,史成恩,等.鄂尔多斯盆地上三叠统延长组特低渗透砂岩储层裂缝特征及成因[J].地质学报,2007,81(2):174-180.
[10]李士祥,邓秀芹,庞锦莲,等.鄂尔多斯盆地中生界油气成藏与构造运动的关系[J].沉积学报,2010,28(4):798-807.
[11]张雪峰,赵彦德,张铭记.鄂尔多斯盆地西南缘延长组存在差异构造运动的地质意义[J].岩性油气藏,2010,22(3):78-82.
[12]赵靖舟,武富礼,闫世可,等.陕北斜坡东部三叠系油气富集规律研究[J].石油学报,2006,27(5):24-34.
[13]赵靖舟,杨县超,武富礼,等.论隆起背景对鄂尔多斯盆地陕北斜坡区三叠系油藏形成和分布的控制作用[J].地质学报,2006,80(5):648-655.
[14]王仲应,庞正宽,李春玉.鄂尔多斯盆地东南部中生界油气成藏条件分析[J].断块油气田,1996,3(4):9-14.
[15]席胜利,刘新社,王涛.鄂尔多斯盆地中生界石油运移特征分析[J].石油实验地质,2004,26(3):229-235.
[16]牟泽辉,朱宏权,张克银,等.鄂尔多斯盆地南部中生界成油体系[M].北京:石油工业出版社,2001:120.
[17]周瑞,胡学智.鄂尔多斯盆地西北部灵盐定地区油藏类型及其控制因素[J].石油实验地质,2001,23(4):390-394.
[18]王平,周义,季海锟.靖安油田北东区局部构造与石油富集关系研究[J].长安大学学报:地球科学版,2003,25(4):9-12.
[19]杨华,包洪平.鄂尔多斯盆地奥陶系中组合成藏特征及勘探启示[J].天然气工业,2011,31(12):11-20.
[20]杨俊杰,张伯荣.陕甘宁盆地东部巨型重力高成因及其勘探意义[J].石油勘探与开发,1989,16(6):11-17.
[21]张进,张庆龙,任文军.断层相关褶皱——鄂尔多斯盆地中的新构造样式[J].石油实验地质,1999,21(1):61-65.
[22]任文军,张进,张庆龙,等.鄂尔多斯盆地中断层相关褶皱及其分布[J].江苏地质,2000,24(1):18-22.
[23]解国爱,肖文霞,张庆龙,等.鄂尔多斯盆地西南缘断层相关褶皱与油气圈闭构造[J].高校地质学报,2001,7(3):272-278.
[24]杨华,张文正.论鄂尔多斯盆地长7段优质油源岩在低渗透油气成藏富集中的主导作用——地质地球化学特征[J].地球化学,2005,34(2):147-154.
[25]段毅,于文修,刘显阳,等.鄂尔多斯盆地长9油层组石油运聚规律研究[J].地质学报,2009,83(6):855-860.
[26]王菁,刘震,朱文奇,等.鄂尔多斯盆地姬塬地区长7段泥岩古孔隙度恢复方法研究[J].现代地质,2012,26(2):384-392.
[27]赵惊蛰,李健,刘颖梅.陕北浅油藏成藏规律及其开发前景[M]//长庆油田公司勘探开发研究院.鄂而多斯盆地油气勘探开发论文集(1990-2000).北京:石油工业出版社,2000:353-360.
[28]李书恒,魏玉平,刘莉莉.靖安油田长2层油井产出特征及其影响因素分析[M]//长庆油田公司勘探开发研究院.鄂而多斯盆地油气勘探开发论文集(1990-2000).北京:石油工业出版社,2000:326-332.
[29]李相博,刘化清,陈启林,等.鄂尔多斯盆地天环坳陷迁移演化与坳陷西翼油气成藏[J].地质科学,2010,45(2):490-499.
[30]LI Xiangbo,LIU Huaqing,WANYAN Rong,et al.Tectonic Evolution of the Tianhuan Depression and the Western Margin of the Late Triassic Ordos[J].Acta Geologica Sinica,2009,83(6):1136-1147.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心