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- The static correction method of converted P-SV waves is always a problem in converted wave processing. 摘要P-SV转换波静校正一直是转换波处理中的一个难题。
- A global optimized algorithm is developed in this study for dealing with the problems of nonlinearity and multiparameter characteristics of the residual statics correction method. 摘要针对地震静校正存在的非线性和多参数性等问题,本文提出了一种全局优化的剩馀静校正方法。
- The paper introduces a new method of refraction tomographic inversion static correction, which can properly calculate the statics resulted from complex near surface conditions. 摘要折射层析反演静校正能够较好地解决复杂近地表引起的静校正量问题。
- In mountain, desert and Gobi areas, the hypsography is serious and static correction is an ill-posed prob1em. 摘要在山地、沙漠和戈壁等地区,地形起伏严重、风化层变化剧烈,静校正问题非常严重。
- In the mountainous coalmine area for complicated-surface,the correct big moveout static correction is an important step of processing 3D seimic's data. 山地煤矿采区地形条件复杂,正确进行大时差静校正是处理好三维地震勘探资料的重要一环。
- The tomographic inversion of the surface layer velocity model with the first break is the important base of the tomographic static correction. 初至波表层速度模型层析反演是层析静校正的重要基础。
- It is no need for CRS stack that starts from rugged topography to do static correction and data redatuming can be easily realized. 基于起伏地表的CRS叠加不需要先对原始数据做静校正,而且得到叠加结果后可以很容易地实现基准面重建。
- In addition, the thickness and velocity of the subweathered zone have great changes laterally, making the static correction very difficult. 此外,该区低、降速层厚度和速度横向变化剧烈,静校正问题突出,为此,开展了有针对性的处理方法研究。
- The theory and practice prove that this method has overstepped the signification of normal static correction and it pertains to the variable-time static correction. 理论和实际应用证明,该方法已超越常规静校正的含义,属时变校正方法。
- Static correction value can be separated into a long wavelength static cor-rection component and a short wavelength static correc-tion component according to spacial variation. 对所存在的静校正量值根据空间变化可分解为长波长静校正分量和短波长静校正分量。
- Authors put forward an effective method which achieves long-wavelength static correction by deriving the low-velocity layer structure from refraction first breaks. 提出一种利用折射初至反演低速带的结构来进行长波长静校正的有效方法。
- The tomographic inversion of near-surface velocities is one of effective approaches to improve the accuracy of static correction in surface-complicated area. 摘要近地表初至层析反演静校正是解决复杂地表静校正问题的有效方法之一。
- Surface structure survey by using the surface wave information in seismic records can provide a new method for calculation of static correction and accurate seismic imaging. 总之,充分利用地震记录中的面波信息调查表层结构将会为静校正量的计算和地震精确成像提供新的技术手段。
- Faced to the problem of static correction caused by complex near-surface structures in mountain and mountain-front areas, we did some researches on the application of tomographic static correction. 山地和山前带地区表层结构复杂,利用表层调查模型和初至折射静校正方法不能解决低、降速带巨厚区的静校正问题,为此进行了层析反演静校正技术的研究。
- According to the theory and interpretation method of shallow refraction static correction, the problems of current interpretation method are analyzed and an improvement method is presented. 依据浅层折射法静校正的原理和解释方法,分析目前在使用的浅层折射法静校正解释方法中存在的问题,提出了改进其解释精度的方法。
- By field data collection, static correction, we drilled hole and confirmed that CSAMT survey data was basically according to the logging data used to conclude stratum and lithology. 通过野外采集数据,对数据进行静校正处理,钻孔验证了CSAMT测量资料与推断解释地层、岩性的测井资料基本一致,达到了物探电磁测量资料指导钻探的目的。
- This paper introduces the basic theory and main steps of tomographic inversion static correction, including ray tracing and Simultaneous Iterative Reconstruction Technique inversion. 给出了层析反演静校正方法的基本原理和实现过程,包括射线追踪和联立迭代重构法反演。
- The static correction values are caculated in commonshot, common reciever, and common offset domains respectively, and then the caculated values areadded back to the common-offset first arriva curves. 这需要对大量数据进行统计,用交互、迭代的方法求出全局最优解。
- In working out static correction, the beam method is adopted to calculate the traveltime between the shot spot and the detection spot.In this way, the datum level correction quantity can be obtained. 求取静校正时采用射线法计算炮点到检波点的旅行时,从而得到基准面校正量。