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Anistropic velocity analysis 各向异性速度分析
P-wave velocity analysis in anisotropy medium. 各向异性介质纵波速度分析。
Next, a study of P-wave nonhyperbolic moveout velocity analysis in azimuthally anisotropic media is performed. 在此基础上,针对方位各向异性介质模型开展了纵波非双曲时差速度分析的研究工作。
The assumption that there is no lateral velocity variation in a stratum is usually made in velocity analysis. 通常进行速度分析时仅设地层没有速度横向变化，但是实际情况并非如此。
The authors propose a migration velocity analysis method based on a global optimization. 提出用全局最优化偏移速度分析方法求取介电常数分布。
Based on the theory, wave propagates through the tilted strata, the method of 3-D irregular line velocity analysis (on condition that the dip is steep) is put forward. 本文根据波在倾斜地层中的传播理论,提出在大倾角情况下的三维非规则测线速度分析方法。
Because of the ray asymmetry of the downgoing and upgoing waves, the velocity analysis based on the CMP gather cannot be adapted to that of the converted wave (CCP). 转换波上、下行波的不对称性,使得常规基于共中心点(CMP)道集的速度分析不能适用于转换波。
The dip direction and dip angle of a subsurface interface must be first determined in three-parameter velocity analysis that needs predetermined dip angle. 采用预求倾角法进行三参量速度分析时,首先要确定地下界面的倾向和倾角。
Equivalent offset migration(EOM)method,which has particular advantages in velocity analysis and imaging,provides ideas for scattered wave imaging. 研究表明,基于等效偏移距的偏移方法(EOM)在速度分析和偏移成像方面具有独特的优势,为散射波成像方法研究提供了思路。
Equivalent offset migration (EOM) method, which has particular advantages in velocity analysis and imaging, provides ideas for scattered wave imaging. 研究表明，基于等效偏移距的偏移方法(EOM)在速度分析和偏移成像方面具有独特的优势，为散射波成像方法研究提供了思路。
Conclusively, it is shown that the selective correlation velocity analysis is a highly accurate method of the high resolution. 结果表明,多波选择性相关度分析方法是一种高精度、高分辨率的速度分析方法。
The 3-D prestack depth migration principally includes three parts: travetime cal-culation, Kirchhoff summation, and velocity analysis. 利用深度偏移后的道集是否拉平进行速度分析，可以进一步修改速度模型。
The resulted traces are regularized and can be used for high signal-to-noise ratio structural imaging and high quality velocity analysis. 最终得到的叠加道可以起到数据规则化的作用，同时，也可以进行高信噪比的构造成像，提高速度分析的质量。
Velocity analysis based on hyperbolic travel time curve is therefore not sufficient for converted waves in anisotropic media. 因此，基于双曲时距关系的速度分析方法不适用于各向异性介质转换波的速度分析。
The quality of velocity analysis directly affects normal moveout correction, and then affects stack imaging and migration. 速度分析的质量直接影响动校正继而影响叠加成像以及偏移归位。
As an inverse problem,migration velocity analysis tries to infer the velocity model from the picked residual curvatures on common image-point gathers(CIGs). 作为一种反问题方法,偏移速度分析利用共成像点道集上的剩余曲率成像点来反演速度模型。
In the three-parameter velocity analysis,we first derive dip direction and dip angle of reflection interface from 3-D seismic data,then obtain mean square-root ve-locity. 在三参量速度分析中，需要根据三维地震勘探资料充求取地下界面的倾向和倾角，然后确定均方根速度。
Since offset ray parameter is proportional to angle of incidence at the reflector, CAI gathers provide a complete set of tools for migration velocity analysis and AVO analysis. 由于照射角和炮检距的对应关系 ;共照射角像集又为偏移速度分析和AVO(振幅随炮检距变化 )分析等提供了有力工具 .
Velocity analysis is an important step in seismic data processing, which determines the precision of NMO, CDP stack, post-stack migration and time-depth conversion. 速度分析是地震勘探资料处理中的关键环节，它的准确与否对动校正、共深度点叠加、叠后偏移及时深转换等都将产生影响。
As an inverse problem, migration velocity analysis tries to infer the velocity model from the picked residual curvatures on common image point gathers (CIGs). 作为一种反问题方法，偏移速度分析利用共成像点道集上的剩余曲率成像点来反演速度模型。