昆仑山前地震勘探方法及应用效果
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摘要
由于昆仑山前带地表条件及地下构造复杂,地震施工难度大,采集的资料品质低,噪声干扰严重,静校正问题严重,地下地层纵横向速度变化剧烈,资料处理难度较大,成像困难。针对这些难点,合理地设计采集参数,并采用灵活多变的观测系统进行采集,大大提高了原始资料的信噪比。通过有针对性地使用静校正技术、噪声压制技术以及构造成像技术,较好地解决了山地地震资料成像问题,最终剖面构造形态清晰,断层接触关系清楚。
Owing to the complex surface and subsurface conditions of Kunlun piedmont zone, seismic construction is very difficult. The data acquired is low in S/N ratio. And the noise interference is serious. In course of data processing, the problem of static correction is serious and the velocity of stratum in the subsurface is changing acutely in vertical and horizontal direction. There are many difficulties during seismic data processing. And it is difficult to image. Aiming at these difficulties, we designed the reasonable gathering parameter and used the changeable observation system to acquire data. These measures have greatly raised the S/N ratio. By way of using pertinent static technology, noise pressing technology as well as the construction imagery technology, we have solved the seismic data imagery problem in mountainous region. The constitute form is distinct and the fault contact concern is clear in the finally stack section.
Owing to the complex surface and subsurface conditions of Kunlun piedmont zone, seismic construction is very difficult. The data acquired is low in S/N ratio. And the noise interference is serious. In course of data processing, the problem of static correction is serious and the velocity of stratum in the subsurface is changing acutely in vertical and horizontal direction. There are many difficulties during seismic data processing. And it is difficult to image. Aiming at these difficulties, we designed the reasonable gathering parameter and used the changeable observation system to acquire data. These measures have greatly raised the S/N ratio. By way of using pertinent static technology, noise pressing technology as well as the construction imagery technology, we have solved the seismic data imagery problem in mountainous region. The constitute form is distinct and the fault contact concern is clear in the finally stack section.
引文
[1]阎世信,刘怀山,姚雪根.山地地球物理勘探技术[M].北京:石油工业出版社,2000.
[2]尚应军,段卫星,徐锦玺,等.山地地震勘探采集难点及对策[A].地震采集技术研讨会论文集[C],2004.
[3]陆基孟.地震勘探原理[M].东营:石油大学出版社,1993.
[4]熊翥.复杂地区油气地球物理勘探技术——数据采集[M].北京:石油工业出版社,1999.
[5]凌云.塔里木盆地山地地震勘探技术[J].中国石油勘探,2003,8(1):25-31.
[6]邓志文,倪宇东,陈学强,等.复杂山地三维地震勘探采集技术[J].石油物探,2002,41(1):15-22.
[7]邓志文.高陡逆掩推覆构造地区地震观测系统研究[J].石油物探,2002,41(2):127-131.
[8]崔兴宝.复杂地质条件下的地震采集质量控制[J].石油地球物理勘探,2003,38(1):11-16.
[9]杨振武,查树贵.复杂地区综合地球物理勘探方法技术应用[J].石油物探,2003,42(3):417-421.
[10]赵军国,宋玉龙,魏福吉,等.山前带地震采集技术研究——新疆和田桑株地区采集实例[J].石油物探,2003,42(2):224-236.
[11]杨举勇,徐峰,施海峰.塔里木山地地震测线部署与采集参数设计原则[J].石油地球物理勘探,2003,38(3):221-227.
[12]陈彩花,欧继红,高晨刚,等.山地地震资料处理方法研究[J].河南石油,2002,16(1):14-21.
[13]陈启元,王彦春,段云卿,等.复杂山区的静校正方法探讨[J].石油物探,2001,40(1):73-81.
[14]王顺国.复杂山区静校正方法研究及效果[J].石油物探,1998,37(4):93-103.
[2]尚应军,段卫星,徐锦玺,等.山地地震勘探采集难点及对策[A].地震采集技术研讨会论文集[C],2004.
[3]陆基孟.地震勘探原理[M].东营:石油大学出版社,1993.
[4]熊翥.复杂地区油气地球物理勘探技术——数据采集[M].北京:石油工业出版社,1999.
[5]凌云.塔里木盆地山地地震勘探技术[J].中国石油勘探,2003,8(1):25-31.
[6]邓志文,倪宇东,陈学强,等.复杂山地三维地震勘探采集技术[J].石油物探,2002,41(1):15-22.
[7]邓志文.高陡逆掩推覆构造地区地震观测系统研究[J].石油物探,2002,41(2):127-131.
[8]崔兴宝.复杂地质条件下的地震采集质量控制[J].石油地球物理勘探,2003,38(1):11-16.
[9]杨振武,查树贵.复杂地区综合地球物理勘探方法技术应用[J].石油物探,2003,42(3):417-421.
[10]赵军国,宋玉龙,魏福吉,等.山前带地震采集技术研究——新疆和田桑株地区采集实例[J].石油物探,2003,42(2):224-236.
[11]杨举勇,徐峰,施海峰.塔里木山地地震测线部署与采集参数设计原则[J].石油地球物理勘探,2003,38(3):221-227.
[12]陈彩花,欧继红,高晨刚,等.山地地震资料处理方法研究[J].河南石油,2002,16(1):14-21.
[13]陈启元,王彦春,段云卿,等.复杂山区的静校正方法探讨[J].石油物探,2001,40(1):73-81.
[14]王顺国.复杂山区静校正方法研究及效果[J].石油物探,1998,37(4):93-103.
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