渤海海域前新生代基底特征及其油气勘探意义
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摘要
基于渤海钻井资料和三维地震资料,梳理了渤海海域前新生代基底岩性、地层、结构、构造特征。将渤海基底划分为前寒武系、古生界、中生界三个构造层,论述了各个构造层残余地层分布特征,并将基底结构分为三种类型,单层型、双层型、三层型。基底构造演化表现为"垂直升降→强烈挤压→局部伸展→强烈伸展反转→整体隆升→‘伸展+走滑’复合改造"6大阶段。结合薄片及物性资料探索了基岩储层发育规律,单层型前寒武系变质岩、双层型顶部的碳酸盐岩或火山岩、三层型顶部中生界火山岩为有利的勘探目标。围绕在富烃凹陷周边的潜山,在岩性和供油窗口耦合的情况下,具有良好的勘探前景。
Based on the Bohai drilling and 3 D seismic data,lithology,stratigraphy and structural features of the Pre-Cenozoic basement in the Bohai sea have been integrated. The Bohai sea basement is divided into three structural layers: Pre-Cambrian,Paleozoic and Mesozoic. Distribution characteristics of the residual layers in each structural layer are discussed,and the basement structure is divided into three types: single,double and three level. Tectonic evolution of the basement comprises six stages: vertical rise and fall,strong extrusion,local extension,strong extension and inversion,overall uplift,stretch and strike-slip compound transformation.Combining the rock sheet and material data,the development regularity of the basement reservoir is explored.Precambrian metamorphic rocks of the single-layer type,carbonate or volcanic rocks at the top of the double-layer type,and Mesozoic volcanic rocks at the top of the three-layer type are favorable exploration targets. Buried hill around the hydrocarbon rich sag has a good exploration potential under the coupling of lithology and oil-supply window.
Based on the Bohai drilling and 3 D seismic data,lithology,stratigraphy and structural features of the Pre-Cenozoic basement in the Bohai sea have been integrated. The Bohai sea basement is divided into three structural layers: Pre-Cambrian,Paleozoic and Mesozoic. Distribution characteristics of the residual layers in each structural layer are discussed,and the basement structure is divided into three types: single,double and three level. Tectonic evolution of the basement comprises six stages: vertical rise and fall,strong extrusion,local extension,strong extension and inversion,overall uplift,stretch and strike-slip compound transformation.Combining the rock sheet and material data,the development regularity of the basement reservoir is explored.Precambrian metamorphic rocks of the single-layer type,carbonate or volcanic rocks at the top of the double-layer type,and Mesozoic volcanic rocks at the top of the three-layer type are favorable exploration targets. Buried hill around the hydrocarbon rich sag has a good exploration potential under the coupling of lithology and oil-supply window.
引文
[1]邓运华.渤海大中型潜山油气田形成机理与勘探实践[J].石油学报,2015,36(3):253-261.
[2]周心怀,余一欣,汤良杰,等.渤海海域新生代盆地结构与构造单元划分[J].中国海上油气,2010,22(5):285-289.
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[7]张善文,隋风贵,林会喜,等.渤海湾盆地前古近系油气地质与远景评价[J].北京:地质出版社,2009:124-128.
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[10]蔡东升,冯晓杰,高乐,等.中国近海前第三纪残余盆地及其勘探潜力与方向[J].中国海上油气,2004,16(1):1-17.
[11]侯贵廷,钱祥麟,蔡东升.渤海湾盆地中、新生代构造演化研究[J].北京大学学报(自然科学版),2001,37(6):845-851.
[12]张在振,李照延,康海亮,等.埕岛油田古生界地层特征及其构造意义[J].现代地质,2015,29(6):1377-1386.
[13]吴庆勋,王粤川,韦阿娟,等.渤海海域中生代火山岩喷发旋回划分及与油气的关系[J].中国海上油气,2017,29(2):18-26.
[14]李三忠,索艳慧,戴黎明,等.海湾盆地形成与华北克拉通破坏[J].地学前缘,2010,17(4):64-89.
[15]官大勇,王永利,王玉秀,等.渤海海域庙西北洼反转构造特征及其对油气成藏控制作用[J].海洋石油,2012,32(1):18-22.
[16]查明,尉亚民,高长海,等.冀中坳陷八里庄—薛庄潜山带构造演化与油气成藏[J].现代地质,2013,27(1):152-157.
[17]夏斌,刘朝露,陈根文.渤海湾盆地中新生代构造演化与构造样式[J].天然气工业,2006,26(12):57-60.
[18]索艳慧,李三忠,曹现志,等.中国东部中新生代反转构造及其记录的大洋板块俯冲过程[J].地学前缘,2017,24(4):249-267.
[2]周心怀,余一欣,汤良杰,等.渤海海域新生代盆地结构与构造单元划分[J].中国海上油气,2010,22(5):285-289.
[3]徐长贵.渤海走滑转换带及其对大中型油气田形成的控制作用[J].地球科学,2016,41(9):1548-1560.
[4]李德生.渤海湾及沿岸盆地的构造格局[J].海洋学报,1980,2(4):93-101.
[5]丁培民.渤海大地构造特征[J].海洋地质与第四纪地质,1988,8(3):9-14.
[6]徐亚,郝天珧,戴明刚,等.渤海残留盆地分布综合地球物理研究[J].地球物理学报,2007,50(3):868-881.
[7]张善文,隋风贵,林会喜,等.渤海湾盆地前古近系油气地质与远景评价[J].北京:地质出版社,2009:124-128.
[8]周小进,倪春华,杨帆.华北古生界原型-变形构造演化及其控油气作用[J].石油与天然气地质,2010,31(6):779-794.
[9]李洪颜.华北克拉通原型盆地及岩浆活动时空演化对克拉通破坏的制约[J].中国科学:地球科学,2013,43(9):1396-1409.
[10]蔡东升,冯晓杰,高乐,等.中国近海前第三纪残余盆地及其勘探潜力与方向[J].中国海上油气,2004,16(1):1-17.
[11]侯贵廷,钱祥麟,蔡东升.渤海湾盆地中、新生代构造演化研究[J].北京大学学报(自然科学版),2001,37(6):845-851.
[12]张在振,李照延,康海亮,等.埕岛油田古生界地层特征及其构造意义[J].现代地质,2015,29(6):1377-1386.
[13]吴庆勋,王粤川,韦阿娟,等.渤海海域中生代火山岩喷发旋回划分及与油气的关系[J].中国海上油气,2017,29(2):18-26.
[14]李三忠,索艳慧,戴黎明,等.海湾盆地形成与华北克拉通破坏[J].地学前缘,2010,17(4):64-89.
[15]官大勇,王永利,王玉秀,等.渤海海域庙西北洼反转构造特征及其对油气成藏控制作用[J].海洋石油,2012,32(1):18-22.
[16]查明,尉亚民,高长海,等.冀中坳陷八里庄—薛庄潜山带构造演化与油气成藏[J].现代地质,2013,27(1):152-157.
[17]夏斌,刘朝露,陈根文.渤海湾盆地中新生代构造演化与构造样式[J].天然气工业,2006,26(12):57-60.
[18]索艳慧,李三忠,曹现志,等.中国东部中新生代反转构造及其记录的大洋板块俯冲过程[J].地学前缘,2017,24(4):249-267.
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