南海北部神狐西南海域天然气水合物成矿远景
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摘要
通过对南海北部神狐西南海域的构造、沉积及气源环境研究,探讨了神狐西南海域天然气水合物的成矿条件,认为该区具有天然气水合物良好的成矿环境;通过穿越神狐西南海域陆坡深水区的典型高分辨率地震剖面资料的解释,初步判识出天然气水合物的可能分布区,预测了天然气水合物的成藏远景。
As a new type of energy resources,gas hydrates have gained great attention from the society because of its cleanness and huge potential.In addition to low temperature and high pressure,the formation of gas hydrate requires more boundary conditions,such as the origin of gas and its sufficient supply,gas migration conduit and favorable conditions of sedimentation.In this regard,it becomes necessary to study the relationship between the gas hydrate occurrence and the geological conditions of tectonics,sedimentation and gas supply for better resource assessment of gas hydrates in a region.Using high-resolution multichannel seismic reflection profiles as a mean,we made a geological assessment of gas hydrates in the continental slope areas of Southwest Shen-hu in this paper.Prospective areas are identified and resource potential is estimated.The results will be helpful for future exploration of gas hydrate in the region.
As a new type of energy resources,gas hydrates have gained great attention from the society because of its cleanness and huge potential.In addition to low temperature and high pressure,the formation of gas hydrate requires more boundary conditions,such as the origin of gas and its sufficient supply,gas migration conduit and favorable conditions of sedimentation.In this regard,it becomes necessary to study the relationship between the gas hydrate occurrence and the geological conditions of tectonics,sedimentation and gas supply for better resource assessment of gas hydrates in a region.Using high-resolution multichannel seismic reflection profiles as a mean,we made a geological assessment of gas hydrates in the continental slope areas of Southwest Shen-hu in this paper.Prospective areas are identified and resource potential is estimated.The results will be helpful for future exploration of gas hydrate in the region.
引文
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[7]连世勇,何敏,庞雄,等.珠江口盆地深水区白云凹陷始新世洼陷结构研究[J].石油学报,2007,28(3):13-16.[LIAN Shi-yong,HE Min,PANG Xiong,et al.Research on Eocenestructure of Baiyun Sag in deep-water area of Pearl RiverMouth Basin[J].Acta Petrolei Sinica,2007,28(3):13-16.]
[8]狄永军,郭正府,李凯明,等.天然气水合物成因探讨[J].地球科学进展,2003,18(1):138-141.[DI Yongjin,GUO Zhengfu,LI Kaiming,et al.Discussion of the origin of gas hydrates[J].Advance in Earth Sciences,2003,18(1):138-141.]
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[10]钱建中,曾久岭.地震剖面上的天然气水合物识别方法[J].海洋石油,2002,113(3):54-59.[QIAN Jianzhong,ZHEN Jiul-ing.Identity method of gas hydrate in the seismic profile[J].Petrolei Marine,2002,113(3):54-59.]
[11]宋海斌,张岭,江为为,等.海洋天然气水合物地球物理研究(Ⅲ):似海底反射[J].地球物理学进展,2003,18(2):182-187.[SONG Haibin,ZHANG Ning,JIANG Weiwei.Geo-physiccal researches on marine gas hydrate(Ⅲ)[J].Progressin Geophysics,2003,18(2):182-187.]
[12]宋海斌,江为为,张岭,等,海洋天然气水合物地球物理研究(Ⅳ):双似海底反射[J].地球物理学进展,2003,18(3):368-373.[SONG Haibin,JIANG Weiwei,ZHANG Ling.Geo-physiccal researches on marine gas hydrate(Ⅳ):Double Bot-tom Simulating Reflectors[J].Progress in Geophysics,2003,18(3):368-373.]
[13]樊栓狮,刘锋,陈多福.海洋天然气水合物的形成机理探讨[J],天然地球科学,2004,15(5):524-530.[FAN Shuanshi,LIU Feng,CHEN Duofu.The research of origin mechanismof marine gas hydrate[J].Natural Gas Geoscience,2004,15(5):524-530.]
[14]沙志彬,郑涛,杨木壮,等.基于波阻抗反演的天然气水合物地震检测技术[J].现代地质,2010,24(3):481-488.[SHA Zhib-in,ZHENG Tao,YANG Muzhuang,et al.The Seismic de-tecting technique on gas hydrates based on wave impedanceinversion[J].Geoscience,2010,24(3):481-488.]
[2]王宏斌,张光学,梁劲,等.南海北部陆坡构造坡折带中的天然气水合物[J].沉积学报,2008,26(2):283-292.[WANG Hong-bin,ZHANG Guangxue,LIANG Jin,et al.Gas hydrates inthe SSBZ in the north slope of the South China Sea[J].ActaSedimentologica Sinica,2008,26(2):283-292.]
[3]傅宁,米立军,张功成.珠江口盆地白云凹陷烃源岩及北部油气成因[J].石油学报,2007,28(3):32-38.[FU Ning,MI Li-jun,ZHANG Gongcheng.Source rocks and origin of oil andgas in the northern Baiyun Depression of Pearl River MouthBasin[J].Acta Petrolei Sinica,2007,28(3):32-38.]
[4]邱燕,王英民,温宁,等.珠江口盆地白云凹陷陆坡区有利成藏组合带[J].海洋地质与第四纪地质,2005,25(1):96-98.[QIUYan,WANG Yingmin,Wen Ning,et al.Fine play zone of BaiYun Depression Slope in the Pearl River Mouth Basin[J].Ma-rine Geology and Quaternary Geology,2005,25(1):96-98.]
[5]黎明碧,金翔龙,初凤友,等.神狐—一统暗沙隆起中部新生代地层层序划分及沉积演化[J].沉积学报,2002,20(4):545-549.[LI Mingbi,JIN Xianglong,CHU Fengyou.Sequence di-vision and sedimentary evolution of cenozoic in the middleShenhu-Yitong Ansha uplift[J].Acta Sedimentologica Sinica,2002,20(4):545-549.]
[6]吴时国,龚跃华,米立军,等.南海北部深水盆地油气渗漏系统及天然气水合物成藏机制研究[J].现代地质,2010,24(3):433-440.[WU Shiguo,GONG Yuehua,MI Lijun.Study onhydrocarbon leakage system and associated gas hydrate reser-voirs in deepwater basin of northern South China Sea[J].Ge-oscience.2010,24(3):433-440.]
[7]连世勇,何敏,庞雄,等.珠江口盆地深水区白云凹陷始新世洼陷结构研究[J].石油学报,2007,28(3):13-16.[LIAN Shi-yong,HE Min,PANG Xiong,et al.Research on Eocenestructure of Baiyun Sag in deep-water area of Pearl RiverMouth Basin[J].Acta Petrolei Sinica,2007,28(3):13-16.]
[8]狄永军,郭正府,李凯明,等.天然气水合物成因探讨[J].地球科学进展,2003,18(1):138-141.[DI Yongjin,GUO Zhengfu,LI Kaiming,et al.Discussion of the origin of gas hydrates[J].Advance in Earth Sciences,2003,18(1):138-141.]
[9]Yuan T,Nahar K S,Roop Chand,et al.Marine gas hydrate:Seismic observations of bottom simulating reflectors off thewest coast of Canada and the east coast of India[J].Geohori-zons,1998,3(1):235-239.
[10]钱建中,曾久岭.地震剖面上的天然气水合物识别方法[J].海洋石油,2002,113(3):54-59.[QIAN Jianzhong,ZHEN Jiul-ing.Identity method of gas hydrate in the seismic profile[J].Petrolei Marine,2002,113(3):54-59.]
[11]宋海斌,张岭,江为为,等.海洋天然气水合物地球物理研究(Ⅲ):似海底反射[J].地球物理学进展,2003,18(2):182-187.[SONG Haibin,ZHANG Ning,JIANG Weiwei.Geo-physiccal researches on marine gas hydrate(Ⅲ)[J].Progressin Geophysics,2003,18(2):182-187.]
[12]宋海斌,江为为,张岭,等,海洋天然气水合物地球物理研究(Ⅳ):双似海底反射[J].地球物理学进展,2003,18(3):368-373.[SONG Haibin,JIANG Weiwei,ZHANG Ling.Geo-physiccal researches on marine gas hydrate(Ⅳ):Double Bot-tom Simulating Reflectors[J].Progress in Geophysics,2003,18(3):368-373.]
[13]樊栓狮,刘锋,陈多福.海洋天然气水合物的形成机理探讨[J],天然地球科学,2004,15(5):524-530.[FAN Shuanshi,LIU Feng,CHEN Duofu.The research of origin mechanismof marine gas hydrate[J].Natural Gas Geoscience,2004,15(5):524-530.]
[14]沙志彬,郑涛,杨木壮,等.基于波阻抗反演的天然气水合物地震检测技术[J].现代地质,2010,24(3):481-488.[SHA Zhib-in,ZHENG Tao,YANG Muzhuang,et al.The Seismic de-tecting technique on gas hydrates based on wave impedanceinversion[J].Geoscience,2010,24(3):481-488.]
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