准噶尔盆地南缘高泉背斜战略突破与下组合勘探领域评价
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摘要
准噶尔盆地南缘(简称准南)是该盆地油气勘探的战略接替区,高探1井下组合的战略突破,进一步证实了准南下组合油气勘探前景广阔。通过分段构造建模、分带落实下组合构造与圈闭特征,结合关键成藏要素匹配关系研究,深化了下组合大构造成藏条件认识。研究认为,①准南中—下侏罗统为主力烃源岩,资源潜力大;发育白垩系清水河组、侏罗系头屯河组和喀拉扎组等多套规模有效储层;白垩系吐谷鲁群区域性巨厚泥岩盖层普遍发育异常高压,具备良好的封盖能力。②准南下组合烃源岩、储层、盖层、圈闭静态成藏要素空间配置关系好;动态成藏要素时间配置关系好,圈闭形成早,构造形成期与主力烃源岩生排烃高峰期匹配,后期改造弱、保存条件好,具备形成大油气田的成藏条件。综合关键成藏要素分析,优选下组合近源背斜型圈闭吐谷鲁背斜、呼图壁背斜及东湾背斜作为准南天然气勘探的突破口。
The southern margin of the Junggar Basin is a strategic successor for oil and gas exploration, and the strategic breakthrough in exploration well Gao 1 further proved the promising future of the lower assemblage in the southern margin. According to the results of sectional structural modeling, structural analysis of the trap and the matching between accumulation conditions, the controlling factors of hydrocarbon accumulation in the lower assemblage was identified. The study results indicate(1) the lower Jurassic is primary source rock which has a large potential; the Cretaceous Qingshuihe Formation, Jurassic Toutunhe Formation and Khalza Formation are effective reservoirs with a certain scale; and the regional thick mudstone of the Cretaceous Tugulu Group at higher pressure is effective caprock with good sealing ability;(2) static elements(i.e. source, reservoir and cap rocks and traps) matched well in space, and dynamic elements matched well in time: the traps developed earlier, the forming of the structure was well consistent with the generating of hydrocarbon, later reconstruction was weak and the preservation conditions were good, which are good conditions for large-scale accumulation. Base on the comprehensive analysis above,near-source anticlinal traps, such as the Tugulu anticline, the Hutubi anticline and the Dongwan anticline, are proposed to make breakthrough to gas exploration in the southern margin of the Junggar Basin.
The southern margin of the Junggar Basin is a strategic successor for oil and gas exploration, and the strategic breakthrough in exploration well Gao 1 further proved the promising future of the lower assemblage in the southern margin. According to the results of sectional structural modeling, structural analysis of the trap and the matching between accumulation conditions, the controlling factors of hydrocarbon accumulation in the lower assemblage was identified. The study results indicate(1) the lower Jurassic is primary source rock which has a large potential; the Cretaceous Qingshuihe Formation, Jurassic Toutunhe Formation and Khalza Formation are effective reservoirs with a certain scale; and the regional thick mudstone of the Cretaceous Tugulu Group at higher pressure is effective caprock with good sealing ability;(2) static elements(i.e. source, reservoir and cap rocks and traps) matched well in space, and dynamic elements matched well in time: the traps developed earlier, the forming of the structure was well consistent with the generating of hydrocarbon, later reconstruction was weak and the preservation conditions were good, which are good conditions for large-scale accumulation. Base on the comprehensive analysis above,near-source anticlinal traps, such as the Tugulu anticline, the Hutubi anticline and the Dongwan anticline, are proposed to make breakthrough to gas exploration in the southern margin of the Junggar Basin.
引文
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[6]马德龙,何登发,袁剑英,张虎权,潘树新,王宏斌,等.准噶尔盆地南缘前陆冲断带深层地质结构及对油气藏的控制作用:以霍尔果斯-玛纳斯-吐谷鲁褶皱冲断带为例[J].地学前缘,2019,26(1):165-177.Ma Delong,He Dengfa,Yuan Jianying,Zhang Huquan,Pan Shuxin,Wang Hongbin,et al.The deep structures in the south Junggar foreland thrust belt and their control on petroleum accumulation:insights from the Huoerguosi-Manasi-Tugulu fold and thrust belt[J].Earth Science Frontiers,2019,26(1):165-177.
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[9]况军,贾希玉.喜马拉雅运动与准噶尔盆地南缘油气成藏[J].新疆石油地质,2005,26(2):129-133.Kuang Jun,Jia Xiyu.Relationship between Himalayan movement and hydrocarbon accumulation in southern margin of Junggar Basin[J].Xinjiang Petroleum Geology,2005,26(2):129-133.
[10]何登发,John Suppe,贾承造.断层相关褶皱理论与应用研究新进展[J].地学前缘,2005,12(4):353-364.He Dengfa,John Suppe,Jia Chengzao.New advances in theory and application of fault-related folding[J].Earth Science Frontiers,2005,12(4):353-364.
[11]汪新,贾承造,杨树锋.南天山库车褶皱冲断带构造几何学和运动学[J].地质科学,2002,37(3):372-384.Wang Xin,Jia Chengzao,Yang Shufeng.Geometry and kinematics of the Kuqa fold-and-thrust belt in the southern TianShan[J].Chinese Journal of Geology,2002,37(3):372-384.
[12]Shaw J H,Suppe J.Active faulting and growth folding in the eastern Santa Barbara Channel,California[J].Geological Society of American Bulletin,1994,106(5):607-626
[13]王绪龙,支东明,王屿涛,陈建平,秦志军,刘德光,等.准噶尔盆地烃源岩与油气地球化学[M].北京:石油工业出版社,2013.Wang Xulong,Zhi Dongming,Wang Yutao,Chen Jianping,Qin Zhijun,Liu Deguang,et al.Geochemistry of source rock and petroleum in the Junggar Basin[M].Beijing:Petroleum Industry Press,2013.
[14]靳军,付欢,于景维,祁利祺,尚玲,文华国,等.准噶尔盆地白家海凸起下侏罗统三工河组沉积演化及油气勘探意义[J].中国石油勘探,2018,23(1):81-90.Jin Jun,Fu Huan,Yu Jingwei,Qi Liqi,Shang Ling,Wen Huaguo,et al.Sedimentary evolution of the Lower Jurassic Sangonghe Formation in Baijiahai uplift,Junggar Basin and its significance in oil and gas exploration[J].China Petroleum Exploration,2018,23(1):81-90.
[15]雷德文,唐勇,常秋生.准噶尔盆地南缘深部优质储集层及有利勘探领域[J].新疆石油地质,2008,29(4):435-438.Lei Dewen,Tang Yong,Chang Qiushen.The deep and relatively high-quality clastic reservoir bodies and favorable exploration areas in southern margin of Junggar Basin[J].Xinjiang Petroleum Geology,2008,29(4):435-438.
[16]雷德文,陈能贵,李学义,张迎春.准噶尔盆地南缘下部成藏组合储集层及分布特征[J].新疆石油地质,2012,33(6):648-650.Lei Dewen,Chen Nenggui,Li Xueyi,Zhang Yingchun.The major reservoirs and distribution of lower combination in southern margin of Junggar Basin[J].Xinjiang Petroleum Geology,2012,33(6):648-650.
[17]付广,刘江涛.中国高效大中型气田形成的封盖保存条件[J].石油勘探与开发,2006,33(6):662-666.Fu Guang,Liu Jiangtao.Sealing and preservation conditions for large and medium gas fields of China[J].Petroleum Exploration and Development,2006,33(6):662-666.
[18]Tigert V,A L-Shaieb Z.Pressure seals:their diagenetic banding patterns[J].Earth Science Reviews,1990,29(1):227-240.
[19]Magara K.Pressure sealing:an important agent for hydrocarbon entrapment[J].Journal of Petroleum Science and Engineering,1993,9(1):67-80.
[20]Darby D,Stuart H R,Couples G D.Pressure cells and pressure seals in the UK Central Graben[J].Marine and Petroleum Geology,1996,13(8):865-878.
[21]邵雨.准噶尔盆地南缘深层下组合侏罗系油气成藏研究[J].高校地质学报,2013,19(1):86-94.Shao Yu.Hydrocarbon accumulation of the Jurassic deeplyburied lower assemblage in the southern Junggar Basin[J].Geological Journal of China Universities,2013,19(1):86-94.
[22]况军,齐雪峰.准噶尔前陆盆地构造特征与油气勘探方向[J].新疆石油地质,2006,27(1):5-9.Kuang Jun,Qi Xuefeng.The structural characteristics and oilgas explorative direction in Junggar foreland basin[J].Xinjiang Petroleum Geology,2006,27(1):5-9.
[23]侯启军,何海清,李建忠,杨涛.中国石油天然气股份有限公司近期油气勘探进展及前景展望[J].中国石油勘探,2018,23(1):1-13.Hou Qijun,He Haiqing,Li Jianzhong,Yang Tao.Recent progress and prospect of oil and gas exploration by PetroChina Company Limited[J].China Petroleum Exploration,2018,23(1):1-13.
[2]雷德文,张健,陈能贵,向宝力.准噶尔盆地南缘下组合成藏条件与大油气田勘探前景[J].天然气工业,2012,32(2):16-22.Lei Dewen,Zhang Jian,Chen Nenggui,Xiang Baoli.Conditions for gas pooling in the lower assemblage in the southern margin of the Junggar Basin and the exploration prospect of large hydrocarbon fields[J].Natural Gas Industry,2012,32(2):16-22.
[3]邵雨,李学义,杨迪生,汪新,肖立新,吴鉴,等.准噶尔盆地南缘新生代构造特征及演化[M].北京:科学出版社,2016.Shao Yu,Li Xueyi,Yang Dishen,Wang Xin,Xiao Lixin,Wu Jian,et al.The Cenozoic structural characteristics and evolution of the southern Junggar basin[M].Beijing:Science Press,2016.
[4]李学义,邵雨,李天明.准噶尔盆地南缘三个油气成藏组合研究[J].石油勘探与开发,2003,30(6):32-34.Li Xueyi,Shao Yu,Li Tianming.Three oil-reservoir combinations in south marginal of Junggar Basin,northwest China[J].Petroleum Exploration and Development,2003,30(6):32-34.
[5]肖立新,雷德文,魏凌云,阎桂华.准南西段构造样式及逆冲推覆构造特征[J].天然气工业,2012,32(11):36-39.Xiao Lixin,Lei Dewen,Wei Lingyun,Yan Guihua.The structural features and hydrocarbon accumulation study of the Junggar foreland basin[J].Natural Gas Industry,2012,32(11):36-39.
[6]马德龙,何登发,袁剑英,张虎权,潘树新,王宏斌,等.准噶尔盆地南缘前陆冲断带深层地质结构及对油气藏的控制作用:以霍尔果斯-玛纳斯-吐谷鲁褶皱冲断带为例[J].地学前缘,2019,26(1):165-177.Ma Delong,He Dengfa,Yuan Jianying,Zhang Huquan,Pan Shuxin,Wang Hongbin,et al.The deep structures in the south Junggar foreland thrust belt and their control on petroleum accumulation:insights from the Huoerguosi-Manasi-Tugulu fold and thrust belt[J].Earth Science Frontiers,2019,26(1):165-177.
[7]彭天令,阎桂华,陈伟,肖立新.准噶尔盆地南缘霍玛吐构造带特征[J].新疆石油地质,2008,29(2):191-194.Peng Tianling,Yan Guihua,Chen Wei,Xiao Lixin.Characteristics of Huoerguosi-Manasi-Tugulu structural belt in Junggar Basin[J].Xinjiang Petroleum Geology,2008,29(2):191-194.
[8]匡立春,王绪龙,张健,夏惠平.准噶尔盆地南缘霍-玛-吐构造带构造建模与玛河气田的发现[J].天然气工业,2012,32(2):11-16.Kuang Lichun,Wang Xulong,Zhang Jian,Xia Huiping.Structural modeling of the Huoerguosi-Manasi-Tugulu thrust belt at the southern margin of the Junggar Basin and the discovery of the Mahe gas field[J].Natural Gas Industry,2012,32(2):11-16.
[9]况军,贾希玉.喜马拉雅运动与准噶尔盆地南缘油气成藏[J].新疆石油地质,2005,26(2):129-133.Kuang Jun,Jia Xiyu.Relationship between Himalayan movement and hydrocarbon accumulation in southern margin of Junggar Basin[J].Xinjiang Petroleum Geology,2005,26(2):129-133.
[10]何登发,John Suppe,贾承造.断层相关褶皱理论与应用研究新进展[J].地学前缘,2005,12(4):353-364.He Dengfa,John Suppe,Jia Chengzao.New advances in theory and application of fault-related folding[J].Earth Science Frontiers,2005,12(4):353-364.
[11]汪新,贾承造,杨树锋.南天山库车褶皱冲断带构造几何学和运动学[J].地质科学,2002,37(3):372-384.Wang Xin,Jia Chengzao,Yang Shufeng.Geometry and kinematics of the Kuqa fold-and-thrust belt in the southern TianShan[J].Chinese Journal of Geology,2002,37(3):372-384.
[12]Shaw J H,Suppe J.Active faulting and growth folding in the eastern Santa Barbara Channel,California[J].Geological Society of American Bulletin,1994,106(5):607-626
[13]王绪龙,支东明,王屿涛,陈建平,秦志军,刘德光,等.准噶尔盆地烃源岩与油气地球化学[M].北京:石油工业出版社,2013.Wang Xulong,Zhi Dongming,Wang Yutao,Chen Jianping,Qin Zhijun,Liu Deguang,et al.Geochemistry of source rock and petroleum in the Junggar Basin[M].Beijing:Petroleum Industry Press,2013.
[14]靳军,付欢,于景维,祁利祺,尚玲,文华国,等.准噶尔盆地白家海凸起下侏罗统三工河组沉积演化及油气勘探意义[J].中国石油勘探,2018,23(1):81-90.Jin Jun,Fu Huan,Yu Jingwei,Qi Liqi,Shang Ling,Wen Huaguo,et al.Sedimentary evolution of the Lower Jurassic Sangonghe Formation in Baijiahai uplift,Junggar Basin and its significance in oil and gas exploration[J].China Petroleum Exploration,2018,23(1):81-90.
[15]雷德文,唐勇,常秋生.准噶尔盆地南缘深部优质储集层及有利勘探领域[J].新疆石油地质,2008,29(4):435-438.Lei Dewen,Tang Yong,Chang Qiushen.The deep and relatively high-quality clastic reservoir bodies and favorable exploration areas in southern margin of Junggar Basin[J].Xinjiang Petroleum Geology,2008,29(4):435-438.
[16]雷德文,陈能贵,李学义,张迎春.准噶尔盆地南缘下部成藏组合储集层及分布特征[J].新疆石油地质,2012,33(6):648-650.Lei Dewen,Chen Nenggui,Li Xueyi,Zhang Yingchun.The major reservoirs and distribution of lower combination in southern margin of Junggar Basin[J].Xinjiang Petroleum Geology,2012,33(6):648-650.
[17]付广,刘江涛.中国高效大中型气田形成的封盖保存条件[J].石油勘探与开发,2006,33(6):662-666.Fu Guang,Liu Jiangtao.Sealing and preservation conditions for large and medium gas fields of China[J].Petroleum Exploration and Development,2006,33(6):662-666.
[18]Tigert V,A L-Shaieb Z.Pressure seals:their diagenetic banding patterns[J].Earth Science Reviews,1990,29(1):227-240.
[19]Magara K.Pressure sealing:an important agent for hydrocarbon entrapment[J].Journal of Petroleum Science and Engineering,1993,9(1):67-80.
[20]Darby D,Stuart H R,Couples G D.Pressure cells and pressure seals in the UK Central Graben[J].Marine and Petroleum Geology,1996,13(8):865-878.
[21]邵雨.准噶尔盆地南缘深层下组合侏罗系油气成藏研究[J].高校地质学报,2013,19(1):86-94.Shao Yu.Hydrocarbon accumulation of the Jurassic deeplyburied lower assemblage in the southern Junggar Basin[J].Geological Journal of China Universities,2013,19(1):86-94.
[22]况军,齐雪峰.准噶尔前陆盆地构造特征与油气勘探方向[J].新疆石油地质,2006,27(1):5-9.Kuang Jun,Qi Xuefeng.The structural characteristics and oilgas explorative direction in Junggar foreland basin[J].Xinjiang Petroleum Geology,2006,27(1):5-9.
[23]侯启军,何海清,李建忠,杨涛.中国石油天然气股份有限公司近期油气勘探进展及前景展望[J].中国石油勘探,2018,23(1):1-13.Hou Qijun,He Haiqing,Li Jianzhong,Yang Tao.Recent progress and prospect of oil and gas exploration by PetroChina Company Limited[J].China Petroleum Exploration,2018,23(1):1-13.
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