奥连特盆地17区块南部差异性构造演化与非稳态油藏
|
摘要
奥连特盆地前陆期是油气成藏的关键期,在东西向持续挤压背景下,经历了多期次的南北向差异性构造演化变形,是该盆地形成非稳态油气藏的主控因素。在对奥连特盆地的前渊轴部区域二维地震资料精细层序边界解释的基础上,通过系统的构造演化和成藏模式演化分析,发现现今简单鼻状构造背景上的、无明显构造圈闭控制的倾斜油水界面非稳态油气藏,其含油气范围受控于较早一期的古背斜圈闭。另外,依据油藏动力学,该区现今的低倾角地层、稠油物性及南北走向的鼻状构造与东西展布的储集砂体的配置关系等因素,均不利于油气的再次运移,从而形成了平面含油气范围与现今圈闭不匹配的非稳态油气藏。
The foreland region of the Oriente Basin, which has suffered multiple stages of differential tectonic deformation under continuous EW compression, is critical for hydrocarbon accumulation and has become a predominant factor for a dynamic oil pool in the basin. This study shows an oil pool in the foredeep axis area of this basin using detailed 2 D seismic sequence boundaries with a tilted oil-water contact, which is not controlled by the current simple nose structure but by a paleo-anticline trap from the earlier stage. In addition, reservoir dynamics, such factors as the current low dip formation, heavy oil property, as well as the perpendicular relationship between the NS trending nose structure and the sandstone distribution in the EW direction, are all unfavorable for hydrocarbon re-migration, which has eventually formed a metastable oil pool whose planar oil-bearing area mismatches with the current trap area.
The foreland region of the Oriente Basin, which has suffered multiple stages of differential tectonic deformation under continuous EW compression, is critical for hydrocarbon accumulation and has become a predominant factor for a dynamic oil pool in the basin. This study shows an oil pool in the foredeep axis area of this basin using detailed 2 D seismic sequence boundaries with a tilted oil-water contact, which is not controlled by the current simple nose structure but by a paleo-anticline trap from the earlier stage. In addition, reservoir dynamics, such factors as the current low dip formation, heavy oil property, as well as the perpendicular relationship between the NS trending nose structure and the sandstone distribution in the EW direction, are all unfavorable for hydrocarbon re-migration, which has eventually formed a metastable oil pool whose planar oil-bearing area mismatches with the current trap area.
引文
[1] 孙龙德,江同文,徐汉林,等.非稳态成藏理论探索与实践[J].海相油气地质,2008,13(3):11-16. SUN Longde,JIANG Tongwen,XU Hanlin,et al.Exploration and practice for theory of unsteady-state hydrocarbon accumulation[J].Marine Origin Petroleum Geology,2008,13(3):11-16.
[2] 张厚福,徐兆辉,王露.油气藏研究的发展趋势预测[J].石油学报,2010,31(1):165-172. ZHANG Houfu,XU Zhaohui,WANG Lu.Prediction of deve-loping trends of reservoir research[J].Acta Petrolei Sinica,2010,31(1):162-172.
[3] 孙龙德,江同文,徐汉林,等.塔里木盆地哈得逊油田非稳态油藏[J].石油勘探与开发,2009,36(1):62-76. SUN Longde,JIANG Tongwen,XU Hanlin,et al.Unsteady reservoir in Hadson Oilfield,Tarim Basin[J].Petroleum Exploration and Development,2009,36(1):62-76.
[4] 江同文,徐汉林,练章贵,等.倾斜油水界面成因分析与非稳态成藏理论探索[J].西南石油大学学报(自然科学版),2008,30(5):1-5. JIANG Tongwen,XU Hanlin,LIAN Zhanggui,et al.Origin of tilted oil-water contact and probe into the theory of unsteady hydrocarbon accumulation[J].Journal of Southwest Petroleum University(Science & Technology Edition),2008,30(5):1-5.
[5] 吴根耀,马力,里群,等.继承性构造与新生构造并存的时空发育特征:“盆”“山”耦合理论指导油气勘探的一个切入点[J].石油实验地质,2010,32(1):2-9. WU Genyao,MA Li,LI Qun,et al.Time-spatial developing features of co-existed inherited and neogenic structures:a tangent in point of basin-orogeny coupling theory guiding petroleum exploration[J].Petroleum Geology & Experiment,2010,32(1):2-9.
[6] 刘明义,曹元婷,胡立,等.新构造运动对塔里木盆地油气成藏模式的影响[J].新疆石油地质,2014,35(3):278-281. LIU Mingyi,CAO Yuanting,HU Li,et al.The influence of neotectonic movement on hydrocarbon accumulation patterns in Tarim Basin[J].Xinjiang Petroleum Geology,2014,35(3):278-281.
[7] 杜洋,衣英杰,辛军,等.伊朗SA油田Sarvak油藏大幅度倾斜油水界面成因探讨[J].石油实验地质,2015,37(2):187-193. DU Yang,YI Yingjie,XIN Jun,et al.Genesis of large-amplitude tilting oil-water contact in Sarvak Formation in South Azadegan Oilfield,Iran[J].Petroleum Geology & Experiment,2015,37(2):187-193.
[8] 付志方,孙红军,董立,等.差异构造演化控制倾斜油水界面之实例:伊朗雅达油田[J].海相油气地质,2017,22(3):67-72. FU Zhifang,SUN Hongjun,DONG Li,et al.Control effects on the tilted oil-water contact caused by differential structural evolution:a case of Yada Oilfield,Iran[J].Marine Origin Petro-leum Geology,2017,22(3):67-72.
[9] 谢寅符,季汉成,苏永地,等.Oriente-Maranon盆地石油地质特征及勘探潜力[J].石油勘探与开发,2010,37(1):51-56. XIE Yinfu,JI Hancheng,SU Yongdi,et al.Petroleum geology and exploration potential of Oriente-Maranon Basin[J].Petro-leum Exploration and Development,2010,37(1):51-56.
[10] 马中振,谢寅符,李嘉,等.南美西缘前陆盆地油气差异聚集及控制因素分析[J].石油实验地质,2014,36(5):597-604. MA Zhongzhen,XIE Yinfu,LI Jia,et al.Hydrocarbon differential accumulation of foreland basins in western South America and its controlling factors[J].Petroleum Geology & Experiment,2014,36(5):597-604.
[11] 田纳新,姜向强,石磊,等.南美重点盆地油气地质特征及资源潜力[J].石油实验地质,2017,39(6):825-833. TIAN Naxin,JIANG Xiangqiang,SHI Lei,et al.Petroleum geology and resource potential of major basins in South America[J].Petroleum Geology & Experiment,2017,39(6):825-833.
[12] 何彬,刘毅,赵刚锋,等.厄瓜多尔奥连特盆地T区油气成藏主控因素分析[J].石油地质与工程,2014,28(3):5-8. HE Bin,LIU Yi,ZHAO Gangfeng,et al.Main controlling factors analysis of hydrocarbon accumulation in T area of Oriental Basin,Ecuador[J].Petroleum Geology and Engineering,2014,28(3):5-8.
[13] 白玉彬,赵靖舟,方朝强.鄂尔多斯盆地长6油层组准连续型致密砂岩油藏形成机理[J].石油实验地质,2013,35(1):65-71. BAI Yubin,ZHAO Jingzhou,FANG Chaoqiang.Forming mechanism of quasi-continuous tight sandstone reservoir of Chang 6 oil-bearing formation,Ordos Basin[J].Petroleum Geology & Experiment,2013,35(1):65-71.
[14] 赵靖舟,王永东,孟祥振,等.鄂尔多斯盆地陕北斜坡东部三叠系长2油藏分布规律[J].石油勘探与开发,2007,34(1):23-27. ZHAO Jingzhou,WANG Yongdong,MENG Xiangzhen,et al.Law of petroleum accumulation and distribution in Triassic Chang 2 oil-bearing Formation in eastern North Shaanxi Slope,Ordos Basin[J].Petroleum Exploration and Development,2007,34(1):23-27.
[15] 侯平,欧阳华,王震,等.石油二次运移优势路径影响因素及形成动力学条件[J].石油勘探与开发,2010,37(1):57-62. HOU Ping,OUYANG Hua,WANG Zhen,et al.Effect factors and dynamic conditions in the formation of preferable paths in oil secondary migration[J].Petroleum Exploration and Development,2010,37(1):57-62.
[16] 张发强,罗晓容,苗盛,等.石油二次运移的模式及其影响因素[J].石油实验地质,2003,25(1):69-75. ZHANG Faqiang,LUO Xiaorong,MIAO Sheng,et al.The patterns and its effect factors of secondary hydrocarbon migration[J].Petroleum Geology & Experiment,2003,25(1):69-75.
[2] 张厚福,徐兆辉,王露.油气藏研究的发展趋势预测[J].石油学报,2010,31(1):165-172. ZHANG Houfu,XU Zhaohui,WANG Lu.Prediction of deve-loping trends of reservoir research[J].Acta Petrolei Sinica,2010,31(1):162-172.
[3] 孙龙德,江同文,徐汉林,等.塔里木盆地哈得逊油田非稳态油藏[J].石油勘探与开发,2009,36(1):62-76. SUN Longde,JIANG Tongwen,XU Hanlin,et al.Unsteady reservoir in Hadson Oilfield,Tarim Basin[J].Petroleum Exploration and Development,2009,36(1):62-76.
[4] 江同文,徐汉林,练章贵,等.倾斜油水界面成因分析与非稳态成藏理论探索[J].西南石油大学学报(自然科学版),2008,30(5):1-5. JIANG Tongwen,XU Hanlin,LIAN Zhanggui,et al.Origin of tilted oil-water contact and probe into the theory of unsteady hydrocarbon accumulation[J].Journal of Southwest Petroleum University(Science & Technology Edition),2008,30(5):1-5.
[5] 吴根耀,马力,里群,等.继承性构造与新生构造并存的时空发育特征:“盆”“山”耦合理论指导油气勘探的一个切入点[J].石油实验地质,2010,32(1):2-9. WU Genyao,MA Li,LI Qun,et al.Time-spatial developing features of co-existed inherited and neogenic structures:a tangent in point of basin-orogeny coupling theory guiding petroleum exploration[J].Petroleum Geology & Experiment,2010,32(1):2-9.
[6] 刘明义,曹元婷,胡立,等.新构造运动对塔里木盆地油气成藏模式的影响[J].新疆石油地质,2014,35(3):278-281. LIU Mingyi,CAO Yuanting,HU Li,et al.The influence of neotectonic movement on hydrocarbon accumulation patterns in Tarim Basin[J].Xinjiang Petroleum Geology,2014,35(3):278-281.
[7] 杜洋,衣英杰,辛军,等.伊朗SA油田Sarvak油藏大幅度倾斜油水界面成因探讨[J].石油实验地质,2015,37(2):187-193. DU Yang,YI Yingjie,XIN Jun,et al.Genesis of large-amplitude tilting oil-water contact in Sarvak Formation in South Azadegan Oilfield,Iran[J].Petroleum Geology & Experiment,2015,37(2):187-193.
[8] 付志方,孙红军,董立,等.差异构造演化控制倾斜油水界面之实例:伊朗雅达油田[J].海相油气地质,2017,22(3):67-72. FU Zhifang,SUN Hongjun,DONG Li,et al.Control effects on the tilted oil-water contact caused by differential structural evolution:a case of Yada Oilfield,Iran[J].Marine Origin Petro-leum Geology,2017,22(3):67-72.
[9] 谢寅符,季汉成,苏永地,等.Oriente-Maranon盆地石油地质特征及勘探潜力[J].石油勘探与开发,2010,37(1):51-56. XIE Yinfu,JI Hancheng,SU Yongdi,et al.Petroleum geology and exploration potential of Oriente-Maranon Basin[J].Petro-leum Exploration and Development,2010,37(1):51-56.
[10] 马中振,谢寅符,李嘉,等.南美西缘前陆盆地油气差异聚集及控制因素分析[J].石油实验地质,2014,36(5):597-604. MA Zhongzhen,XIE Yinfu,LI Jia,et al.Hydrocarbon differential accumulation of foreland basins in western South America and its controlling factors[J].Petroleum Geology & Experiment,2014,36(5):597-604.
[11] 田纳新,姜向强,石磊,等.南美重点盆地油气地质特征及资源潜力[J].石油实验地质,2017,39(6):825-833. TIAN Naxin,JIANG Xiangqiang,SHI Lei,et al.Petroleum geology and resource potential of major basins in South America[J].Petroleum Geology & Experiment,2017,39(6):825-833.
[12] 何彬,刘毅,赵刚锋,等.厄瓜多尔奥连特盆地T区油气成藏主控因素分析[J].石油地质与工程,2014,28(3):5-8. HE Bin,LIU Yi,ZHAO Gangfeng,et al.Main controlling factors analysis of hydrocarbon accumulation in T area of Oriental Basin,Ecuador[J].Petroleum Geology and Engineering,2014,28(3):5-8.
[13] 白玉彬,赵靖舟,方朝强.鄂尔多斯盆地长6油层组准连续型致密砂岩油藏形成机理[J].石油实验地质,2013,35(1):65-71. BAI Yubin,ZHAO Jingzhou,FANG Chaoqiang.Forming mechanism of quasi-continuous tight sandstone reservoir of Chang 6 oil-bearing formation,Ordos Basin[J].Petroleum Geology & Experiment,2013,35(1):65-71.
[14] 赵靖舟,王永东,孟祥振,等.鄂尔多斯盆地陕北斜坡东部三叠系长2油藏分布规律[J].石油勘探与开发,2007,34(1):23-27. ZHAO Jingzhou,WANG Yongdong,MENG Xiangzhen,et al.Law of petroleum accumulation and distribution in Triassic Chang 2 oil-bearing Formation in eastern North Shaanxi Slope,Ordos Basin[J].Petroleum Exploration and Development,2007,34(1):23-27.
[15] 侯平,欧阳华,王震,等.石油二次运移优势路径影响因素及形成动力学条件[J].石油勘探与开发,2010,37(1):57-62. HOU Ping,OUYANG Hua,WANG Zhen,et al.Effect factors and dynamic conditions in the formation of preferable paths in oil secondary migration[J].Petroleum Exploration and Development,2010,37(1):57-62.
[16] 张发强,罗晓容,苗盛,等.石油二次运移的模式及其影响因素[J].石油实验地质,2003,25(1):69-75. ZHANG Faqiang,LUO Xiaorong,MIAO Sheng,et al.The patterns and its effect factors of secondary hydrocarbon migration[J].Petroleum Geology & Experiment,2003,25(1):69-75.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |