二维地震叠偏剖面作图方法的疑难问题
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摘要
利用单斜构造摸型对T0 空校作图方法的正偏移和反偏移进行计算 ,结果表明“三维空间偏移量可以分解为测线x方向上和垂直于x方向的 2个分量 ,它们恰好是沿着这 2个方向上的二维偏移量”的结论对v(z) =v0 (1+βz)时的连续介质而言是不成立的 ,从而使有关的叠偏剖面作图方法在原理上出现了疑难问题。
The calculation of migration and demigration of T 0 spatial correction mapping is carried on a monoclinal structure model in the paper. When the medium is of v(z)= v 0(1+βz) , the computational results disagree with argument that 3 D migration offset can be split into two components pointing respectively in x direction and vertical direction, and they are just the 2 D migration offset in these two directions, therefore producing an difficult problem for mapping with 2 D migration section.
The calculation of migration and demigration of T 0 spatial correction mapping is carried on a monoclinal structure model in the paper. When the medium is of v(z)= v 0(1+βz) , the computational results disagree with argument that 3 D migration offset can be split into two components pointing respectively in x direction and vertical direction, and they are just the 2 D migration offset in these two directions, therefore producing an difficult problem for mapping with 2 D migration section.
引文
1 刘素庚用叠偏剖面直接绘制构造图[J]石油地球物理勘探,1984,19(5):453～459
2 李秀新,王敏偏移剖面作构造图的基本方法[J]石油物探,1986,25(2):13～24
3 秦政,朱克安用地震叠偏剖面编制构造图的原理和方法[J]石油地球物理勘探,1994,29(1):48～58
4 陆基孟地震勘探原理[M]北京:石油出版社,19821～47
5 祝伟业,张权二维剖面作图中值得注意的问题[J]石油物探,2000,39(3):100～107
6 祝伟业,张天霞三维补偿法在二维剖面作图中的应用[J]石油物探,1997,36(4):57～65
7 祝伟业地震叠偏剖面的补偿闭合及作图方法[C]地球物理技术汇编,1987,(8):77～101
2 李秀新,王敏偏移剖面作构造图的基本方法[J]石油物探,1986,25(2):13～24
3 秦政,朱克安用地震叠偏剖面编制构造图的原理和方法[J]石油地球物理勘探,1994,29(1):48～58
4 陆基孟地震勘探原理[M]北京:石油出版社,19821～47
5 祝伟业,张权二维剖面作图中值得注意的问题[J]石油物探,2000,39(3):100～107
6 祝伟业,张天霞三维补偿法在二维剖面作图中的应用[J]石油物探,1997,36(4):57～65
7 祝伟业地震叠偏剖面的补偿闭合及作图方法[C]地球物理技术汇编,1987,(8):77～101
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