西湖凹陷H构造群及周边花港组沉积环境及砂体刻画
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摘要
西湖凹陷H构造群及周边为中央反转带中南部区域大型反转挤压背景下形成的区块,紧邻富凹,具有油气潜力。为了更好地寻找有利勘探区带以及富砂层位,结合地震反射特征、成像测井资料、岩石以及古生物资料对H构造群及周边花港组的沉积背景进行了研究,认为花港组发育于构造稳定的中等水动力环境下,受多向水流影响,孢粉及其他生物组合表明花港组整体处于淡水环境。通过测井、取心资料分析认为花港组为网状河沉积,其中网状水道、交错坝以及纵向砂坝砂体十分发育。此外,结合连井和地震剖面对河道砂体的垂向叠置及展布规律的研究表明,砂体垂向叠置关系以单边对接式、多边对接式及不完全切叠式为主,平面以带状、交织带状和网状形态为主,深部河道砂体具一定规模。
H structural group and its adjacent areas of Xihu Depression were formed under the background of huge extrusion and reversion,which located near the rich depression and proved to have potential oil and gas.In order to find the beneficial areas and the rich sand strata,this paper combines the characteristics of seismic reflection,FMI logging data,lithology data and paleontology data to do research on sedimentary background,considering that the Huagang Formation deposits under moderate hydrodynamic force and is affected by multidirection fluid. The pollen and other paleontological association suggest that Huagang Formation is under fresh water environment. According to logging and coring data,it is proved that the Huagang Formation develops anastomosing river deposits,and anastomosing channels,cross bar and vertical bar are well-developed among those microfacies. Furthermore,combining the well-to-well correlation and seismic profiles together,the vertical overlap and planar distribution characteristics of sandbodies are analyzed,indicating that the single-jointed,multilateral-jointed and incomplete folded sandboies are mainly deposited,and the planar sandbodies are mainlystripe,cross-linking stripe and net shaped. It is proved that the deep-deposited sandbodies have a great potential.
H structural group and its adjacent areas of Xihu Depression were formed under the background of huge extrusion and reversion,which located near the rich depression and proved to have potential oil and gas.In order to find the beneficial areas and the rich sand strata,this paper combines the characteristics of seismic reflection,FMI logging data,lithology data and paleontology data to do research on sedimentary background,considering that the Huagang Formation deposits under moderate hydrodynamic force and is affected by multidirection fluid. The pollen and other paleontological association suggest that Huagang Formation is under fresh water environment. According to logging and coring data,it is proved that the Huagang Formation develops anastomosing river deposits,and anastomosing channels,cross bar and vertical bar are well-developed among those microfacies. Furthermore,combining the well-to-well correlation and seismic profiles together,the vertical overlap and planar distribution characteristics of sandbodies are analyzed,indicating that the single-jointed,multilateral-jointed and incomplete folded sandboies are mainly deposited,and the planar sandbodies are mainlystripe,cross-linking stripe and net shaped. It is proved that the deep-deposited sandbodies have a great potential.
引文
[1]刘金水.西湖凹陷平湖构造带地层压力特征及与油气分布的关系[J].成都理工大学学报(自然科学版),2015,42(1):60-69.
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[4]张建培,唐贤君,张田,等.平衡剖面技术在东海西湖凹陷构造演化研究中的应用[J].海洋地质前沿,2012,28(8):31-37.
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[7]蔡华.东海平湖油气田潮道砂体垂向特征及平面分布[J].海洋地质前沿,2013,29(8):39-44.
[8]徐发,张建培,张田,等.西湖凹陷输导体系特征及其对油气成藏的控制作用[J].海洋地质前沿,2012,28(7):24
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[11]武法东,陆永潮,陈平,等.东海西湖凹陷渐新统花港组海绿石的发现及其意义[J].沉积学报,1997,15(3):158-161.
[12]王文娟,张银国,张建培.东海盆地西湖凹陷渐新统花港组地震相特征及沉积相分布[J].海相油气地质,2014,19(1):60-68.
[13]张绍亮,秦兰芝,余逸凡,等.西湖凹陷渐新统花港组下段沉积相特征及模式[J].石油地质与工程,2014,5(2):5-9.
[14]刘金水,曹冰,徐志星,等.西湖凹陷某构造花港组沉积相及致密砂岩储层特征[J].成都理工大学学报(自然科学版),2012,39(2):130-136.
[15]张建培,徐发,钟韬,等.东海陆架盆地西湖凹陷平湖组—花港组层序地层模式及沉积演化[J].海洋地质与第四纪地质,2012,32(1):35-41.
[16]胡明毅,柯岭,梁建设,等.西湖凹陷花港组沉积相特征及相模式[J].石油天然气学报,2010,32(5):1-5.
[17]黎祺.西湖凹陷天外天A气田花港组沉积微相及有利砂体预测[D].武汉:长江大学,2015.
[18]于兴河,李顺利,曹冰,等.西湖凹陷渐新世层序地层格架与沉积充填响应[J].沉积学报,2017,35(2):299-314.
[19]蔡佳,祁鹏,宋双.东海盆地西湖凹陷花港组下段沉积相分析[J].海洋地质与第四纪地质,2017,37(2):56-65.
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[22]何文祥,吴胜和,唐义疆,等.河口坝砂体构型精细解剖[J].石油勘探与开发,2005,32(5):42-46.
[23]何文祥,吴胜和,唐义疆,等.地下点坝砂体内部构型分析——以孤岛油田为例[J].矿物岩石,2005,25(2):81-86.
[24]侯加根,刘钰铭,徐芳,等.黄骅坳陷孔店油田新近系馆陶组辫状河砂体构型及含油气性差异成因[J].古地理学报,2008,10(5):459-464.
[25]何文祥,吴胜和,唐义疆,等.河口坝砂体构型精细解剖[J].石油勘探与开发,2005,32(5):42-46.
[26]韩洁,王敬瑶,李军,等.扶余油田扶余线曲流河储层单砂体构型刻画及剩余油控制因素[J].现代地质,2011,25(2):308-312.
[27]岳大力,吴胜和,温立峰,等.点坝内部构型控制的剩余油分布物理模拟[J].中国科技论文,2013,8(5):473-476.
[28]吴胜和,范峥,许长福,等.新疆克拉玛依油田三叠系克下组冲积扇内部构型[J].古地理学报,2012,14(3):331-340.
[29]纪友亮,周勇,吴胜和,等.河流相地层高精度地层构型界面形成机制及识别方法[J].中国石油大学学报(自然科学版),2012,32(2):8-15.
[30]张田,张建培,张绍亮,等.东海陆架盆地西部坳陷带构造特征及演化[J].海洋地质前沿,2015,31(5):1-8.
[31]徐发.东海陆架盆地新生界结构特征及迁移规律[J].石油天然气学报,2012,34(6):1-8.
[32]张建培,张涛,刘景彦,等.西湖凹陷反转构造分布与样式[J].海洋石油,2008,28(4):14-20.
[33]张敏强,徐发,张建培,等.西湖凹陷裂陷期构造样式及其对沉积充填的控制作用[J].海洋地质与第四纪地质,2011,31(5):67-72.
[34]高雁飞,傅恒,赵立欣,等.东海西湖凹陷花港组层序划分[J].沉积与特提斯地质,2014,34(4):24-29.
[35]李家彪.东海区域地质[M].北京:海洋出版社,2008:202-215.
[2]张国华,张建培.东海陆架盆地构造反转特征及成因机制探讨[J].地学前缘,2015,22(1):260-270.
[3]张建培,张田,唐贤君.东海陆架盆地类型及其形成的动力学环境[J].地质学报,2014,88(11):2033-2043.
[4]张建培,唐贤君,张田,等.平衡剖面技术在东海西湖凹陷构造演化研究中的应用[J].海洋地质前沿,2012,28(8):31-37.
[5]徐发,张建培,张田,等.中国近海主要大中型含油气盆地形成条件类比研究[J].海洋石油,2012,32(3):1-8.
[6]杜美霞,徐振中.西湖凹陷H油气田深层气藏地质特征与开发潜力[J].中国海上油气,2013,25(2):56-67.
[7]蔡华.东海平湖油气田潮道砂体垂向特征及平面分布[J].海洋地质前沿,2013,29(8):39-44.
[8]徐发,张建培,张田,等.西湖凹陷输导体系特征及其对油气成藏的控制作用[J].海洋地质前沿,2012,28(7):24
[9]张建培,葛和平,漆滨汶.西湖凹陷砂岩自生高岭石发育特征及其对储层物性的影响[J].海洋石油,2009,29(1):1-8.
[10]张建培,葛和平,张涛,等.西湖凹陷古近系及新近系储层砂岩自生高岭石分布特征及形成机制[J].中国海上油气,2008,20(6):362-366.
[11]武法东,陆永潮,陈平,等.东海西湖凹陷渐新统花港组海绿石的发现及其意义[J].沉积学报,1997,15(3):158-161.
[12]王文娟,张银国,张建培.东海盆地西湖凹陷渐新统花港组地震相特征及沉积相分布[J].海相油气地质,2014,19(1):60-68.
[13]张绍亮,秦兰芝,余逸凡,等.西湖凹陷渐新统花港组下段沉积相特征及模式[J].石油地质与工程,2014,5(2):5-9.
[14]刘金水,曹冰,徐志星,等.西湖凹陷某构造花港组沉积相及致密砂岩储层特征[J].成都理工大学学报(自然科学版),2012,39(2):130-136.
[15]张建培,徐发,钟韬,等.东海陆架盆地西湖凹陷平湖组—花港组层序地层模式及沉积演化[J].海洋地质与第四纪地质,2012,32(1):35-41.
[16]胡明毅,柯岭,梁建设,等.西湖凹陷花港组沉积相特征及相模式[J].石油天然气学报,2010,32(5):1-5.
[17]黎祺.西湖凹陷天外天A气田花港组沉积微相及有利砂体预测[D].武汉:长江大学,2015.
[18]于兴河,李顺利,曹冰,等.西湖凹陷渐新世层序地层格架与沉积充填响应[J].沉积学报,2017,35(2):299-314.
[19]蔡佳,祁鹏,宋双.东海盆地西湖凹陷花港组下段沉积相分析[J].海洋地质与第四纪地质,2017,37(2):56-65.
[20]ALLEN J R L.Sedimentary structures:Sorby and the last decade[J].Journal of the Geological Society of London,1993,150:417-425.
[21]MIALL A D.Lithofacies types and vertical profile models in braided river deposits:a summary[M]//MIALL A D.Fluvial Sedimentology.Calgary,Alberta,Canada:Geological Survey of Canada,1977:597-604.
[22]何文祥,吴胜和,唐义疆,等.河口坝砂体构型精细解剖[J].石油勘探与开发,2005,32(5):42-46.
[23]何文祥,吴胜和,唐义疆,等.地下点坝砂体内部构型分析——以孤岛油田为例[J].矿物岩石,2005,25(2):81-86.
[24]侯加根,刘钰铭,徐芳,等.黄骅坳陷孔店油田新近系馆陶组辫状河砂体构型及含油气性差异成因[J].古地理学报,2008,10(5):459-464.
[25]何文祥,吴胜和,唐义疆,等.河口坝砂体构型精细解剖[J].石油勘探与开发,2005,32(5):42-46.
[26]韩洁,王敬瑶,李军,等.扶余油田扶余线曲流河储层单砂体构型刻画及剩余油控制因素[J].现代地质,2011,25(2):308-312.
[27]岳大力,吴胜和,温立峰,等.点坝内部构型控制的剩余油分布物理模拟[J].中国科技论文,2013,8(5):473-476.
[28]吴胜和,范峥,许长福,等.新疆克拉玛依油田三叠系克下组冲积扇内部构型[J].古地理学报,2012,14(3):331-340.
[29]纪友亮,周勇,吴胜和,等.河流相地层高精度地层构型界面形成机制及识别方法[J].中国石油大学学报(自然科学版),2012,32(2):8-15.
[30]张田,张建培,张绍亮,等.东海陆架盆地西部坳陷带构造特征及演化[J].海洋地质前沿,2015,31(5):1-8.
[31]徐发.东海陆架盆地新生界结构特征及迁移规律[J].石油天然气学报,2012,34(6):1-8.
[32]张建培,张涛,刘景彦,等.西湖凹陷反转构造分布与样式[J].海洋石油,2008,28(4):14-20.
[33]张敏强,徐发,张建培,等.西湖凹陷裂陷期构造样式及其对沉积充填的控制作用[J].海洋地质与第四纪地质,2011,31(5):67-72.
[34]高雁飞,傅恒,赵立欣,等.东海西湖凹陷花港组层序划分[J].沉积与特提斯地质,2014,34(4):24-29.
[35]李家彪.东海区域地质[M].北京:海洋出版社,2008:202-215.