seismic velocity

Using the teleseismic waveforms recorded by the passive seismic experiment, receiver function method was used to investigate the S wave velocity structure.

利用记录到的远震体波波形资料和接收函数方法获得了剖面下0～100km深度的地壳和上地幔S波速度结构。

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Using teleseismic PS converted waveform to get Receiver Function is one of efficient methods which can study velocity discontinuity of the crust and mantle structure under seismic station.

利用远震PS转换波波形提取出的接收函数来研究地震台站下方地壳、上地幔速度间断面结构是有效的方法之一[1]。

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Regularity of the variation of seismic velocity with depth in Hb region

HB地区地震速度垂向变化规律的研究

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Research on the 3-D Seismic Velocity Structures in Qinghai-Xizang Plateau

青藏高原地震波三维速度结构的研究

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Thinking about the importance of Pre-SDM to target layer imaging and the sensitivity of it to velocity-depth model, seismic workers have tumed their attention to migration velocity modeling in recent years.

考虑到叠前深度偏移对目的层成像的重要性和对速-深模型的敏感性，近年来，地震工作者已把注意力转移到偏移速度建模上。

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A geometric mean formula is first derived for the equivalent seismic velocity of EDA media.

这里首先提出了一种计算EDA介质等效波速的几何平均法.

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The successive velocity spectrum which developed on the basis of fast correlated sign bit velocity spectrum technique can pick up velocity spectrum point by point along a seismic section.

在符号位快相关速度谱技术基础上发展起来的连续速度谱，可以沿地震剖面逐点拾取速度谱。

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It can describe precisely the cross hole reservoir by using synthetically the kinematic and dynamic features through using travel time and frequency feature of cross hole seismic first break for joint tomographic imaging for seismic velocity of stratum and for Q value.

通过利用井间地震初至波的旅行时及其频率特性进行地层地震速度和岩石Q值的联合层析成像，就可以综合利用地震波的运动学和动力学特征对井间储层进行更精确的描述。

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Seismic velocity can occasionally be affected by porosity and temperature.

孔隙率和温度有时也能影响地震波速

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A suite of coarse deposits in meteorite crater resulted in basin-shaped seismic anomaly in time section which in turn caused the dome structure pseudomorph in the underlying strata due to its high seismic velocity.

坑内堆积了一套较粗的快速堆积物，构成了地震时间剖面上的盆状异常体，由于异常体的地震波传播速度较高，造成了下伏层穹窿状构造假像。

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Measurements of physical properties indicate that the rutile-bearing eclogite, due to its very high seismic velocity and density, can produce reflections and gravity anomalies.

岩石物性测定表明，金红石榴辉岩的纵波速度极高，会产生明显的反射与重力异常。

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The lateral and vertical variations of seismic velocity are examined quantitatively based on the VSP data from Su18 and Su20 wells in Hailaer Basin.

应用海拉尔盆地苏18和苏20两口井的VSP资料，定量地研究了地震速度在横向上和纵向上的变化情况。

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Analysis on the characters of seismic reflection, gravity filed, interval velocity, rock's density, tectonic features of depression, well_to_well interpretation and sedimentary facies of surroundings proved that Mesozoic marine strata are widespread in the eastern area of Pearl River Mouth basin.

从地震反射特征、重力场特征、层速度特征、岩石密度特征、坳陷构造形态特征、连井解释以及区域沉积相的研究，多个方面阐明了在珠江口盆地东部地区广泛存在中生代海相地层。

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Full offset stack may reduce seismic resolution, because of lower frequency of far offset than that of near offset in raw seismic data, NMO stretching and velocity error.

受原始记录远道频率低于近道频率、动校拉伸、速度误差等因素的影响，满覆盖叠加降低了地震剖面的分辨率。

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Precise Measurement of Seismic Velocity and Velocity Variation by Correlated Detection

利用相关检测法进行地震波速及其变化的精确测量

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Characteristics and effect factors of seismic velocity in metamorphic rock area: An example from CCSD borehole area

变质岩区地震波速度的特点及其影响因素&以中国大陆科学钻探孔区为例

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Then using a recursion formula for the seismic velocity spectrum and interval velocity, the velocity values having the same time domain with the oil/ gas geologic body are picked up and calculated.

再利用地震速度谱和层速度递推公式，分别拾取和计算与油气地质体同一时域的速度值。

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Three dimensional finite difference inversion method is used to obtain 3 D velocity structure of the upper crust in North China by means of Pg wave data from 30 deep seismic sounding ( DSS) profiles in the studied area.

通过对华北地区30条深地震测深剖面的Pg波三维有限差分速度层析成像反演，获得了该地区上部地壳的三维速度结构。

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The key of seismic data processing mainly lies in static corrections and imaging and both of them are relative to velocity model in complex near-surface and underground geologic structural conditions.

在复杂地表条件和复杂地质构造条件下，地震资料处理的关键主要表现为静校正和成像，而这两者均与速度模型有关。

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