激发药量与药型分析
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摘要
凌云 .激发药量与药型分析 .石油地球物理勘探 ,2 0 0 1,36 (5 ) :5 84～ 5 90 人工激发地震波场的强弱和激发频率与激发药量、激发药型、激发耦合和激发有效能量下传紧密相关 ,在不少文献和教科书中已讨论过这一问题 ,并得出不少有益的结论 ,如激发频率与激发药量成反比 [1]、与激发破坏半径成反比、与耦合介质的速度成正比 [2 ]等 ,但在实际勘探中如何正确使用这些结论往往十分困难。主要问题是 :1从实际实验炮集数据中难以直接获得较准确的定量实验结论 ;2激发效果受多因素影响 ,难以从实际实验炮集数据得出单一因素的定量分析结论 ;3通常实际实验炮集数据内具有较低的信噪比 ,影响直接获得激发参数变化的差异 ;4由于激发中的偶然因素较多 ,如爆炸不完全、激发耦合变化等都影响定量分析的精度。因此 ,本文的目的是希望提供一种可以较准确地从实际炮集数据中求取激发药量和激发药型实验分析结论的方法 ,从而指导野外地震采集
The energy and frequency of seismic wave field produced by artificial shooting obviously have close relations with charge size, charge type, shooting coupling and down spread of effective shooting energy. These questions have been discussed in many literatures and textbooks which reached many useful conclusions, such as inverse ratio of shooting frequency with charge size , inverse ratio of shooting frequency with radius of shooting wreck and direct ratio of shooting frequency with velocity of coupling medium , etc. But how to correctly use these conclusions in practice is often very difficult. The major problems are:①It is difficult to directly come to more accurate and quantitative test conclusions from real test shot gathers; ②The shooting results are results of multi factor influence so that it is hard to reach quantitative analytic conclusion produced by single factor from real test shot gathers;③Poor signal to noise ratio commonly resulted from real test shot gathers has influences on difference directly obtained shooting parameters variance;④ Because of many accidental factors in shooting ( such as incomplete shooting and shooting coupling variance, etc ), it can have impact on precision of quantitative analysis. Therefore, the aim of the paper is to hope provide an analysis method that can more accurately come to the conclusion of charge size and charge type from real shot gathers and can guide seismic field acquisition.
The energy and frequency of seismic wave field produced by artificial shooting obviously have close relations with charge size, charge type, shooting coupling and down spread of effective shooting energy. These questions have been discussed in many literatures and textbooks which reached many useful conclusions, such as inverse ratio of shooting frequency with charge size , inverse ratio of shooting frequency with radius of shooting wreck and direct ratio of shooting frequency with velocity of coupling medium , etc. But how to correctly use these conclusions in practice is often very difficult. The major problems are:①It is difficult to directly come to more accurate and quantitative test conclusions from real test shot gathers; ②The shooting results are results of multi factor influence so that it is hard to reach quantitative analytic conclusion produced by single factor from real test shot gathers;③Poor signal to noise ratio commonly resulted from real test shot gathers has influences on difference directly obtained shooting parameters variance;④ Because of many accidental factors in shooting ( such as incomplete shooting and shooting coupling variance, etc ), it can have impact on precision of quantitative analysis. Therefore, the aim of the paper is to hope provide an analysis method that can more accurately come to the conclusion of charge size and charge type from real shot gathers and can guide seismic field acquisition.
引文
[1] 李庆中.走向精确勘探的道路.石油工业出版社,1993
[2] 俞寿朋.高分辨率地震勘探.石油工业出版社,1993
[3] 范祯祥.地震波参数反演与应用技术.河南科学技术出版社,1998
[4] 凌云.大地吸收衰减分析.石油地球物理勘探.2001,36(3)
[5] 凌云,郭向宇.非地表一致性干扰压制方法.石油地球物理勘探.1992,27(1)
[6] 凌云.非规则干扰信噪比分析.石油地球物理勘探.2001,36(4)
[7] 凌云,张汝杰,高军,吴伟康.方形排列干扰波调查方法研究.石油地球物理勘探.2000,35(2)
[8] 凌云,周熙襄.自适应可控震源地表一致性反褶积.石油地球物理勘探.1994,29(3)
[9] 凌云,俞寿朋,周熙襄.零相位同态反褶积.石油地球物理勘探.1995,30(3)
[10] 凌云,吴伟康.三维叠后零相位同态反褶积.石油地球物理勘探.1995,30(6)
[11] 凌云,俞寿朋,周熙襄.瞬时吸收率检测与高频噪声剔除.石油地球物理勘探.1995,30(6)
[12] 高军,凌云,周兴元,牟永光.时频域球面发散与吸收补偿.石油地球物理勘探.1996,31(6)
[13] 凌云,高军,张汝杰.基于一维弹性阻尼波动理论的沙丘吸收补偿.石油地球物理勘探.1997,32(6)
[14] 凌云,高军,张汝杰,应地表一致性变步长予测反褶积消除沙丘鸣震.石油地球物理勘探.1998,33(1)
[2] 俞寿朋.高分辨率地震勘探.石油工业出版社,1993
[3] 范祯祥.地震波参数反演与应用技术.河南科学技术出版社,1998
[4] 凌云.大地吸收衰减分析.石油地球物理勘探.2001,36(3)
[5] 凌云,郭向宇.非地表一致性干扰压制方法.石油地球物理勘探.1992,27(1)
[6] 凌云.非规则干扰信噪比分析.石油地球物理勘探.2001,36(4)
[7] 凌云,张汝杰,高军,吴伟康.方形排列干扰波调查方法研究.石油地球物理勘探.2000,35(2)
[8] 凌云,周熙襄.自适应可控震源地表一致性反褶积.石油地球物理勘探.1994,29(3)
[9] 凌云,俞寿朋,周熙襄.零相位同态反褶积.石油地球物理勘探.1995,30(3)
[10] 凌云,吴伟康.三维叠后零相位同态反褶积.石油地球物理勘探.1995,30(6)
[11] 凌云,俞寿朋,周熙襄.瞬时吸收率检测与高频噪声剔除.石油地球物理勘探.1995,30(6)
[12] 高军,凌云,周兴元,牟永光.时频域球面发散与吸收补偿.石油地球物理勘探.1996,31(6)
[13] 凌云,高军,张汝杰.基于一维弹性阻尼波动理论的沙丘吸收补偿.石油地球物理勘探.1997,32(6)
[14] 凌云,高军,张汝杰,应地表一致性变步长予测反褶积消除沙丘鸣震.石油地球物理勘探.1998,33(1)
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