缅甸俯冲增生带的构造特征及勘探前景
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摘要
汇聚板块边缘俯冲增生带的构造活动与油气勘探潜力研究一直都是石油地质界的难点,地处印度板块与欧亚板块交会处的缅甸若开海岸是开展这一研究的绝佳区域。通过对缅甸俯冲增生带的钻井、地质露头以及地震资料的认真分析,将研究区划分为增生楔主体、斜坡盆地和海沟3个构造单元,并在此基础上探讨了各构造单元的油气勘探前景,指出位于孟加拉湾东侧的海沟地区油气成藏条件最为优越,寻找深水浊积砂体应成为该区重点勘探方向之一。
The tectonic activity and exploration potential analysis of subduction-accretionary belt at plate convergent margins are always difficult problems in oil geologic field.Myanmar is a favorite place for the study,which lies in the conjunction area of the Eurasian Plate and Indian Plate.The tectonic evolution,structural domain division and petroleum exploration prospects are studied based on the carefully study on the wells,outcrops,seismic data and regional background information.It can be divided into three structural domains:Accretionary wedge,slope basin and trench.The hydrocarbon accumulation condition is favorable in Bengal fan trench region,and hunting for turbidite sand bodies and subtle reservoirs is the key to petroleum exploration.
The tectonic activity and exploration potential analysis of subduction-accretionary belt at plate convergent margins are always difficult problems in oil geologic field.Myanmar is a favorite place for the study,which lies in the conjunction area of the Eurasian Plate and Indian Plate.The tectonic evolution,structural domain division and petroleum exploration prospects are studied based on the carefully study on the wells,outcrops,seismic data and regional background information.It can be divided into three structural domains:Accretionary wedge,slope basin and trench.The hydrocarbon accumulation condition is favorable in Bengal fan trench region,and hunting for turbidite sand bodies and subtle reservoirs is the key to petroleum exploration.
引文
[1]Howell D G.The Future of Energy Gases[M].Translated byYang Dengwei,Li Dagen,et al.Beijing:Petroleum IndustryPress,1999:374-384.[豪厄尔D G.能源气的未来[M].杨登维,李大艮,等译.北京:石油工业出版社,1999:374-384.]
[2]Ding Weiwei,Cheng Xiaogan,Chen Hanlin,et al.Geological charac-teristics and tectonic mechanism of Taiwan accretionary prism:Evi-dences from a muti-channel seismic profile of a“973”survey[J].Journal of Tropical Oceanography,2005,24(5):53-59.[丁巍伟,程晓敢,陈汉林,等.台湾增生楔的构造单元划分及其变形特征[J].热带海洋学报,2005,24(5):53-59.]
[3]Huang C H,Wu W Y,Chang C P.Tectonic evolution of accre-tionary prism in the arc-continent collision terrane of Taiwan[J].Tectonophysics,1997,281:31-51.
[4]Westbrook G K,Ladd J W,Buhl P.Cross section of an accre-tionary wedge:Barbados ridge complex[J].Geology:Boulder,1998,16(7):631-635.
[5]Xie Nan,Jiang Ye,Zhu Guanghui,et al.The mechanism of sec-ondary porosity in Oligocene reservoir in Southern Shewbo ba-sin,Myanmar[J].Natural Gas Geoscience,2010,21(2):289-294.[谢楠,姜烨,朱光辉,等.缅甸睡宝盆地南部地区渐新统储层次生孔隙形成机理分析[J].天然气地球科学,2010,21(2):289-294.]
[6]Lai Jiangde,Zhang Jinduo,Cai Dongdi,et al.An analysis of theseismic structural style of the M block in Myanmar[J].Geo-physical&Geochemical Exploration,2009,33(1):24-26.[赖江德,张进铎,蔡东地,等.缅甸M区块地震构造样式分析与研究[J].物探与化探,2009,33(1):24-26.]
[7]Hu Ziduo,He Zhenhua,Wang Yuchao,et al.Comprehensivestatic correction and its application for high-steep structure ineast Sichuan basin[J].Natural Gas Geoscience,2010,21(6):1046-1053.[胡自多,贺振华,王宇超,等.综合静校正技术及其在川东高陡构造区应用效果[J].天然气地球科学,2011,21(6):1046-1053.]
[8]Mahmood Alam,M Mustafa Alam,Joseph R Curray,et al.Anoverview of the sedimentary geology of the Bengal basin in re-lation to the regional tectonic framework and basin-fill history[J].Sedimentary Geology,2003,155(3/4):179-208.
[2]Ding Weiwei,Cheng Xiaogan,Chen Hanlin,et al.Geological charac-teristics and tectonic mechanism of Taiwan accretionary prism:Evi-dences from a muti-channel seismic profile of a“973”survey[J].Journal of Tropical Oceanography,2005,24(5):53-59.[丁巍伟,程晓敢,陈汉林,等.台湾增生楔的构造单元划分及其变形特征[J].热带海洋学报,2005,24(5):53-59.]
[3]Huang C H,Wu W Y,Chang C P.Tectonic evolution of accre-tionary prism in the arc-continent collision terrane of Taiwan[J].Tectonophysics,1997,281:31-51.
[4]Westbrook G K,Ladd J W,Buhl P.Cross section of an accre-tionary wedge:Barbados ridge complex[J].Geology:Boulder,1998,16(7):631-635.
[5]Xie Nan,Jiang Ye,Zhu Guanghui,et al.The mechanism of sec-ondary porosity in Oligocene reservoir in Southern Shewbo ba-sin,Myanmar[J].Natural Gas Geoscience,2010,21(2):289-294.[谢楠,姜烨,朱光辉,等.缅甸睡宝盆地南部地区渐新统储层次生孔隙形成机理分析[J].天然气地球科学,2010,21(2):289-294.]
[6]Lai Jiangde,Zhang Jinduo,Cai Dongdi,et al.An analysis of theseismic structural style of the M block in Myanmar[J].Geo-physical&Geochemical Exploration,2009,33(1):24-26.[赖江德,张进铎,蔡东地,等.缅甸M区块地震构造样式分析与研究[J].物探与化探,2009,33(1):24-26.]
[7]Hu Ziduo,He Zhenhua,Wang Yuchao,et al.Comprehensivestatic correction and its application for high-steep structure ineast Sichuan basin[J].Natural Gas Geoscience,2010,21(6):1046-1053.[胡自多,贺振华,王宇超,等.综合静校正技术及其在川东高陡构造区应用效果[J].天然气地球科学,2011,21(6):1046-1053.]
[8]Mahmood Alam,M Mustafa Alam,Joseph R Curray,et al.Anoverview of the sedimentary geology of the Bengal basin in re-lation to the regional tectonic framework and basin-fill history[J].Sedimentary Geology,2003,155(3/4):179-208.
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