静校正方法在黄土塬地区的联合应用
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摘要
黄土塬地区静校正问题严重,一直是地震资料处理中的难题。针对黄土塬地区的近地表特征,基于地震资料分析,提出了联合应用多种静校正方法解决静校正问题的思路。首先应用模型初至反演静校正方法建立低、降速带结构,进行长波长静校正;然后利用折射初至交互迭代静校正方法求取中、短波长剩余静校正量;最后应用最大能量法、模拟退火法和遗传算法相结合的综合寻优方法,利用连续稳定强反射层的反射信息,求取短波长剩余静校正量。3种静校正方法的联合使用,有效地解决了黄土塬地区的静校正问题,剖面质量得到了较大改善,信噪比和振幅保真度均得到大幅度提高。
Serious statics problem in loess tableland is always a difficulty in seismic data processing.Aiming at the near surface characteristics in loess tableland,based on analysis on seismic data,we proposed an approach by jointly applying three statics methods to solve statics problem.Firstly,model-based first break inversion statics method is applied to establish the structure of low-velocity and subweathered zone,and to carry out long-wavelength statics.Then, refraction first break interactive iteration statics is used to obtain middle- and short- wavelength residual statics.Finally,integrated global optimization method by combining maximum energy method, simulated annealing method and inherited algorithm is applied to gain short-wavelength statics from reflection information of continuously steady strong reflector.The joint application of the three methods can effectively solve the statics problem in loess tableland; profile was greatly improved,the S/N and amplitude preservation is greatly increased.
Serious statics problem in loess tableland is always a difficulty in seismic data processing.Aiming at the near surface characteristics in loess tableland,based on analysis on seismic data,we proposed an approach by jointly applying three statics methods to solve statics problem.Firstly,model-based first break inversion statics method is applied to establish the structure of low-velocity and subweathered zone,and to carry out long-wavelength statics.Then, refraction first break interactive iteration statics is used to obtain middle- and short- wavelength residual statics.Finally,integrated global optimization method by combining maximum energy method, simulated annealing method and inherited algorithm is applied to gain short-wavelength statics from reflection information of continuously steady strong reflector.The joint application of the three methods can effectively solve the statics problem in loess tableland; profile was greatly improved,the S/N and amplitude preservation is greatly increased.
引文
1程建远,张广忠,胡继武.黄土塬地区的三维地震勘探技术[J].中国煤田地质,2004,16(6):40-43
2刘先荣.折射波静校正技术在黄土塬地区的应用[J].内蒙古石油化工,2005(6):116-117
3林伯香,肖万富,李博.层析静校正在黄土源弯宽线资料处理中的应用[J].石油物探,2007,36(4):417-420
4商昌亮,付守献.黄土塬山地三维地震勘探应用实例??[J].岩性油气藏,2007,9(3):106-110
5邹强,周熙襄,钟本善.交互的初至波反演及静校正[J].物探化探技术,2005,27(1):6-9
6戴云,张建中.长波长静校正问题的一种解决方法[J].石油地球物理勘探,2000,35(3):315-325
7张建中,戴云,徐峰.共中心点域折射静校正方法[J].石油地球物理勘探,2001,36(3):297-300,318
8王进海,熊民生.模型法静校正在黄土塬地区的应用[J].石油地球物理勘探,1995,30(增刊1):48-53
9王彦春,余钦范,李峰.交互迭代静校正方法[J].石油物探,1998,37(2):63-70
10王彦春,余钦范,段云卿.三维折射波静校正[J].石油地球物理勘探,2000,35(1):13-19
11王彦春.折射波静校正方法在复杂地表区的应用[J].物探与化探,1999,23(6):428-434
12宁俊瑞,王顺国,樊佳芳,等.基于对比折射法的三维静校正技术及其应用[J].石油物探,2006,45(3):277- 284
13林依华,张中杰,尹成,等.复杂地形条件下静校正的综合寻优[J].地球物理学报,2003,46(1):101-106
14林依华,尹成,周熙襄,等.一种新的求解静校正的全局快速寻优法[J].石油地球物理勘探,2000,35(1):1-12
2刘先荣.折射波静校正技术在黄土塬地区的应用[J].内蒙古石油化工,2005(6):116-117
3林伯香,肖万富,李博.层析静校正在黄土源弯宽线资料处理中的应用[J].石油物探,2007,36(4):417-420
4商昌亮,付守献.黄土塬山地三维地震勘探应用实例??[J].岩性油气藏,2007,9(3):106-110
5邹强,周熙襄,钟本善.交互的初至波反演及静校正[J].物探化探技术,2005,27(1):6-9
6戴云,张建中.长波长静校正问题的一种解决方法[J].石油地球物理勘探,2000,35(3):315-325
7张建中,戴云,徐峰.共中心点域折射静校正方法[J].石油地球物理勘探,2001,36(3):297-300,318
8王进海,熊民生.模型法静校正在黄土塬地区的应用[J].石油地球物理勘探,1995,30(增刊1):48-53
9王彦春,余钦范,李峰.交互迭代静校正方法[J].石油物探,1998,37(2):63-70
10王彦春,余钦范,段云卿.三维折射波静校正[J].石油地球物理勘探,2000,35(1):13-19
11王彦春.折射波静校正方法在复杂地表区的应用[J].物探与化探,1999,23(6):428-434
12宁俊瑞,王顺国,樊佳芳,等.基于对比折射法的三维静校正技术及其应用[J].石油物探,2006,45(3):277- 284
13林依华,张中杰,尹成,等.复杂地形条件下静校正的综合寻优[J].地球物理学报,2003,46(1):101-106
14林依华,尹成,周熙襄,等.一种新的求解静校正的全局快速寻优法[J].石油地球物理勘探,2000,35(1):1-12
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