南黄海西部地区浅层气地震特征

顾兆峰; 张志珣; 刘怀山

南黄海西部地区浅层气地震特征

1 中国海洋大学海洋地球科学学院, 青岛 266003;
2 青岛海洋地质研究所, 青岛 266071

基金项目:

国土资源大调查项目(200211000001)

详细信息

作者简介:
顾兆峰(1969-),男,副研究员,硕士生,从事地球物理调查与研究

中图分类号: P738
计量
- 文章访问数: 1732
- HTML全文浏览量: 166
- PDF下载量: 16
出版历程
- 收稿日期: 2005-10-12
- 修回日期: 2006-01-08

SEISMIC FEATURES OF SHALLOW GAS IN THE WESTERN AREA OF THE YELLOW SEA

1 Ocean University of China, Qingdao 266003, China;
2 Qingdao Institue of Marine Geology, Qingdao 266071, China

摘要

摘要: 通过近年来南黄海西部地区的浅层地震调查,发现该地区浅层气地震特征丰富而多变,特别是多处海底面、海水层中的浅层气地震记录,揭示本区存在较多浅层气,且部分浅层气由海底逸出,释放到海水层中。该区的浅层气地震特征按空间位置分为3大类:(1)地层中的特征:声学空白、声学幕、声学扰动、不规则强反射顶界面、两侧相位下拉;(2)海底面的特征:海底麻坑、大型塌陷坑;(3)海水层中的特征:声学羽流、云状扰动、点划线反射。选择相应特征的典型浅层气地震记录,进行了声学成因解释,讨论了大型塌陷坑的浅层气成因、海水层中声学反射与浅层气体的成因关系以及浅层气地震特征的气体浓度指示作用。根据南黄海西部地区浅层气地震特征,绘制了该区的浅层气分布图。
- 浅层气 /
- 地震反射特征 /
- 南黄海西部地区
Abstract: According to the shallow seismic survey we carried out in the west area of the Yellow Sea in recent years,we find that there are various kinds of shallow gas seismic features in the region, and the seismic records of shallow gas in the seabed and in the water column indicate that the area is rich in shallow gas and some of them is seeping from seabed and releasing into seawater column.According to their space position,the seismic features of shallow gas in this region can be divided into three groups:(1)features in the stratum:acoustic blanket,acoustic curtains,acoustic turbidity,irregular strong top reflection boundary,and phase pull-down in both flanks;(2)features of the seabed:seabed pockmark and giant sunken pit;(3)features in the seawater column:acoustic plumes,cloudy turbidity and point-line-type reflection.Selecting typical seismic record with related features in the area,we explained their acoustic causes and discussed (1)the origin relation between shallow gas and acoustic reflection in seawater column,(2)shallow gas causing the giant sunken pit, and (3)concentration indications of the shallow gas seismic features.Based on the shallow gas seismic features,we mapped the distribution of shallow gas in this region.
- shallow gas /
- seismic features /
- the west area of the Yellow Sea

HTML全文

参考文献(30)

[1]	王颖.黄海陆架辐射沙脊群[M].北京:中国环境科学出版社,2002:301-353.[WANG Ying.Radiative Ridge Group in the Yellow Sea Continent[M].Beijing:China Environment Press,2002.]
[2]	石文斌,李德培,王新成,等.南黄海浅层地震调查及其地质意义[J].海洋地质与第四纪地质,1986,6(1):87-104. [SHI Wen-bin,LI De-pei,WANG Xin-cheng,et al.The survey and geological meaning of shallow stratum in the south Yellow Sea[J].Marine Geology and Quaternary Geology,1986,6(1):87-104.]
[3]	李凡,张秀荣,唐宝珏.黄海埋藏古河道及灾害地质图集[M].济南:济南出版社,1998:17.[LI Fan,ZHANG Xiu-rong,TANG Bao-ju.Record Anthogy of Buried Palaeo-Channel and Disasterous Geology in the Yellow Sea[M].Jinan:Jinan Press,1998:17.]
[4]	赵月霞,刘保华,李西双,等.南黄海中西部晚更新世沉积地层结构及其意义[J].海洋科学进展,2003,21(1):21-30. [ZHAO Yue-xia,LIU Bao-hua,LI Xi-shuang,et al.Late-Pleistocene sedimentary stratum structure and meaning in the middle and western area of the South Yellow Sea[J].Process of Ocean Science,2003,21(1):21-30.]
[5]	许东禹,刘锡清,张训华,等.中国近海地质[M].北京:地质出版社,1997:11,44-45,223 -239.[XU Dong-yu,LIU Xi-qing,ZHANG Xun-hua,et al.Offshore Geology of China[M].Beijing:Geologic Publishing House,1997:11,44-45,223-239.]
[6]	杨子赓,林和茂.中国东部第四纪进程与国际对比[M].北京:地质出版社,1993:79-84.[YANG Zi-geng,LIN He-mao.Quaternary process of China and internal anolog[M].Beijing:Geologic Publishing House,1997:79 -84.]
[7]	杨子赓,林和茂.中国第四纪地层与国际对比[M].北京:地质出版社,1996:31-41.[YANG Zi-geng,LIN He-mao.Quaternary stratum of China and international anolog[M].Beijing:Geologic Publishing House,1996:31 -41.]
[8]	Schüler F.Untersuchungen über die Machtigkeit von Schlickschichtem mit Hilfe des Echographen[J].Dt.Hydrographiche Zeitung, 1952, 5:220-231.
[9]	Fader G B J. Gas-related sedimentary features from the eastern Canadian continental shelf[J].Continental Shelf Research,1991,11:1123-1153.
[10]	Hovland M,Judd A G.Seabed Pockmarks and Seepages.Impact on Geology,Biology and the Marine Environment[M].Graham and Trotman,London,1988:294.
[11]	Fader G B J,Buckley D E. Environmental geology of Halifax Harbour,Nova Scotia[J].Geoscience Canada,1995,22:152-171.
[12]	Wilkens R H,Richardson M D.The influence of gas bubbles on sediment acoustic properties:in situ, laboratory and theoretical results from Eckernförde Bay, Baltic Sea[J]. Continental Shelf Research, 1998, 18(14/15):1859-1892.
[13]	Davis A M. Methane in marine sediments[J]. Continental Shelf Research,1992,12:175.
[14]	Karisddaiah S M,Veerayya M.Potential distribution of subsurface methane in the sediments of the eastern Arabian sea and its possible implications[J].Journal of Geophysical Research,1996,101(D20,D25):887-895.
[15]	Acosta J.Occurrence of acoustic masking in sedimens in two areas of the continent of Spain:Ria de Muros(NW)and Gulf of Cadiz(SW)[J].Marine Geology,1984,58:427-434.
[16]	Taylor D I. Nearshore shallow gas around the UK coast[J]. Continental Shelf Research,1992,12:1135-1144.
[17]	Garcia-Gil S,Vilas F,Garcia-Garcia A.Shallow gas features in incised-valley fills(Ría de Vigo,NW Spain):a case study[J]. Continental Shelf Research,2002,22:2303-2315.
[18]	smail kuscu,Makoto Okamura,Hiromi Matsuoka,et al.Seafloor gas seeps and sediment failures triggered by the Auguest 17,1999 earthquake in the eastern part of the gulf of zmit,Sea of Marmara,NW Turkey[J]. Marine Geology,2005,215:193-214.
[19]	Missiaen T,Murphy S,Loncke L,et al.Very high-resolution seismic mapping of shallow gas in the Belgian coastal zone[J].Continental Shelf Research,2002,22:2291-2301.
[20]	Anna C,Antonio S,Gian M.Gas seeps and rock formation in the northern Adriatic Sea[J]. Continental Shelf Research,2002,22:2333-2344.
[21]	Martin Hovland,Henrik Svensen,Carl Fredrik Forsberg,et al.Complex pockmarks with carbonate-ridges off mid-Norway:Products of sediment degrassing[J].Marine Geology,2005,218:191-206.
[22]	ZHANG Zhi-xun,GU Zhao-feng,YANG Jin-yu,et al. Distribution and Characteristics of Shallow Gas in the North Offshore Area of the Bohai Bay[C]//Offshore Geology of China. Beijing:China Ocean Press,2003:91-105.
[23]	林春明,蒋维三,李从先.杭州湾地区全新世典型生物气藏特征分析[J].石油学报,l8(3):44-50[LIN Chun-ming,JIANG Wei-san,LI Cong-xian.Analysis of the typical biological gas mine of Holocene in the Hangzhou Bay[J].Journal of Oil,18(3):44-50.]
[24]	陈少平,孙家振,沈传波.杭州湾入海口处浅层气成因与类型[J].重庆石油高等专科学校学报,2003,2:30-31.[CHEN Shao-ping,SUN Jia-zhen,SHEN Chuan-bo.The cause and formation,types of shallow gas in the mouth of Hangzhou Bay[J].2003 ,2:30-31.]
[25]	丁国生.我国浅层气资源及气藏类型[J].天然气工业,1997,3:22-27.[DING Guo-sheng.Resources of shallow gas and gas mine types of China[J].Natural Gas Industry,1997 ,3:22-27.]
[26]	叶银灿,陈俊仁,潘国富,等.海底浅层气的成因、赋存特征及其对工程的危害[J].东海海洋,2003,21(1):27-36. [YE Yin-can,CHEN Jun-ren,PAN Guo-fu,et al. Formation, features and the harm to engineering[J]. Donghai Marine Science,2003,21(1):27-36.]
[27]	潘国富.浅层地震声学剖面的声地层学解释[J].海洋地质与第四纪地质,1991,11(1):87-94. [PAN Guo-fu.Acoustic stratigraphic interpretation of shallow seismic acoustic profiles[J].Marine Geology and Quaternary Geology,1991,11(1):87-94.]
[28]	尤立克R J.水声原理[M].哈尔滨:哈尔滨船舶工程学院出版社,1990:199-203.[Urik R J. Principl of Underwater Sound[M].Harbin:The Press of College of Harbin Shipping Engineering,1990:199 -203.]
[29]	伯迪克W S.水声系统分析[M].北京:海洋出版社,1992:51-78.[Bodic W S.Underwater Acoustic System Analysis[M].Beijing:China Ocean Press,1992:51 -78.]
[30]	赵今吾,赵子丹,秦学仁,等.海岸河口动力学[M].北京:海洋出版社,1993:515-522.[ZHAO Jin-wu,ZHAO Zi-dan,QIN Xue-ren,et al.Coast and Estuary Dynamics[M].Beijing:China Ocean Press,1993:515 -522.]