江苏滩涂区浅层地震探测方法技术应用
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摘要
针对海陆衔接带地质调查工作不足、现有地球物理调查手段缺失等问题,在江苏省南通市如东县试点滩涂区开展浅层反射地震探测方法技术试验研究。该浅层反射地震探测选用锤击震源激发,自然频率60 Hz的检波器接收。通过试验确定了合理的观测系统参数及仪器记录参数,获得了能清晰反映第四系地质结构的高精度浅层反射地震剖面,并据此总结了在滩涂区开展浅层地震探测影响数据采集的因素,为在滩涂区开展浅层地震探测工作提供了经验性建议。通过此次浅层地震工作,探测到测区内第四系底界面位置,并对第四系内部层位进行了划分,查明了测线敷设范围内的隐伏活动断裂,发现了测线敷设范围内浅层气的存在,并圈定了浅层气沿测线方向的分布范围。
In view of the lack of geological investigation and the lack of existing geophysical survey methods on Intertidal zone,the technical research of shallow reflection seismic exploration method is carried out in the tidal flat area of Rudong County,Nantong City,Jiangsu Province. The shallow reflection of seismic detection using hammer source and the natural frequency of 60 Hz detector. Through the experiment,the reasonable parameters of the observation system and the instrument are determined,and the high-precision shallow reflection seismic profile which can clearly reflect the Quaternary geological structure is obtained,and unfavorable factors of the shallow seismic exploration data acquisition in the beach area are summarized,provides empirical advice for carrying out shallow seismic exploration in the beach area. From the shallow seismic profile,the location of the Quaternary bottom interface in the survey area is detected,and the internal layers of the Quaternary is divided,and the hidden faults in the laying range are found out. Found shallow gas in Line laying within the scope,and delineated the distribution of shallow gas along the direction of the line.
In view of the lack of geological investigation and the lack of existing geophysical survey methods on Intertidal zone,the technical research of shallow reflection seismic exploration method is carried out in the tidal flat area of Rudong County,Nantong City,Jiangsu Province. The shallow reflection of seismic detection using hammer source and the natural frequency of 60 Hz detector. Through the experiment,the reasonable parameters of the observation system and the instrument are determined,and the high-precision shallow reflection seismic profile which can clearly reflect the Quaternary geological structure is obtained,and unfavorable factors of the shallow seismic exploration data acquisition in the beach area are summarized,provides empirical advice for carrying out shallow seismic exploration in the beach area. From the shallow seismic profile,the location of the Quaternary bottom interface in the survey area is detected,and the internal layers of the Quaternary is divided,and the hidden faults in the laying range are found out. Found shallow gas in Line laying within the scope,and delineated the distribution of shallow gas along the direction of the line.
引文
[1]徐明才,高景华,等.城市地震勘探[M].北京:地质出版社,2011.
[2]柴铭涛,高景华.城市活断层探测中的反射地震数据采集和处理技术[J].物探与化探,2007,31(4):365-369.
[3]徐明才,高景华,柴铭涛,等.都市区调查深埋活断层的地震方法技术[J].物探与化探,1997,21(3):180-186.
[4]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.
[5]顾兆峰,张志珣,刘怀山.南黄海西部地区浅层气地震特征[J].海洋地质与第四纪地质,2006,26(3):65-74.
[6]吕公河.滩浅海地区地震勘探存在问题及解决方法[J].油气地球物理,2005,3(2):1-5.
[7]崔汝国,王彦春,曹国滨,等.胜利油田滩浅海地区地震勘探技术[J].物探与化探,2006,30(5):441-445.
[8]宋玉龙.滩浅海地区地震勘探存在问题及其解决方法[J].石油物探,2005,44(4):343-347.
[9]朱健,王瑞雪.滩浅海地震勘探几种常见问题探讨[J].复杂油气藏,2012,5(2):32-35.
[10]崔汝国,曹国滨.垦东滩浅海地区地震勘探技术[J].石油地球物理勘探,2008,43(s2):21-24.
[11]宋玉龙,张剑,杨怀春,等.滩浅海两栖地区油气地震勘探激发接收技术研究[J].地球物理学进展,2004,19(2):424-430.
[12]陈见伟,庄锡进,胡冰,等.多次波压制组合技术在海洋地震资料处理中的应用[J].海相油气地质,2011,16(1):68-73.
[13]Ghose R,Nijhof V,Brouwer J,et al.Shallow to very shallow,highresolution reflection seismic using a portable vibrator system[J].Geophysics,1998,63(4):1295-1309.
[14]Missiaen T,Slob E,Donselaar M E.Comparing different shallow geophysical methods in a tidalestuary,Verdronken Land van Saeftinge,Western Scheldt,the Netherlands[J].Netherlands Journal of Geosciences,2008,87(2):151-164.
[15]Liu B H,Han T C,Kan G M,et al.Correlations between the in situ acoustic properties and geotechnicalparameters of sediments in the Yellow Sea,China[J].Journal of Asian Earth Sciences,2013,77:83-90.
[2]柴铭涛,高景华.城市活断层探测中的反射地震数据采集和处理技术[J].物探与化探,2007,31(4):365-369.
[3]徐明才,高景华,柴铭涛,等.都市区调查深埋活断层的地震方法技术[J].物探与化探,1997,21(3):180-186.
[4]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.
[5]顾兆峰,张志珣,刘怀山.南黄海西部地区浅层气地震特征[J].海洋地质与第四纪地质,2006,26(3):65-74.
[6]吕公河.滩浅海地区地震勘探存在问题及解决方法[J].油气地球物理,2005,3(2):1-5.
[7]崔汝国,王彦春,曹国滨,等.胜利油田滩浅海地区地震勘探技术[J].物探与化探,2006,30(5):441-445.
[8]宋玉龙.滩浅海地区地震勘探存在问题及其解决方法[J].石油物探,2005,44(4):343-347.
[9]朱健,王瑞雪.滩浅海地震勘探几种常见问题探讨[J].复杂油气藏,2012,5(2):32-35.
[10]崔汝国,曹国滨.垦东滩浅海地区地震勘探技术[J].石油地球物理勘探,2008,43(s2):21-24.
[11]宋玉龙,张剑,杨怀春,等.滩浅海两栖地区油气地震勘探激发接收技术研究[J].地球物理学进展,2004,19(2):424-430.
[12]陈见伟,庄锡进,胡冰,等.多次波压制组合技术在海洋地震资料处理中的应用[J].海相油气地质,2011,16(1):68-73.
[13]Ghose R,Nijhof V,Brouwer J,et al.Shallow to very shallow,highresolution reflection seismic using a portable vibrator system[J].Geophysics,1998,63(4):1295-1309.
[14]Missiaen T,Slob E,Donselaar M E.Comparing different shallow geophysical methods in a tidalestuary,Verdronken Land van Saeftinge,Western Scheldt,the Netherlands[J].Netherlands Journal of Geosciences,2008,87(2):151-164.
[15]Liu B H,Han T C,Kan G M,et al.Correlations between the in situ acoustic properties and geotechnicalparameters of sediments in the Yellow Sea,China[J].Journal of Asian Earth Sciences,2013,77:83-90.