层速度

沃尔什（Walsh）函数法叠后相对层速度反演是以叠后地震道的褶积模型为基础的。

Poststack relative interval velocity inversion using Walsh function is based on the convolution model of poststack seismic traces .

利用VSP转换波旅行时，通过迭代可得到较为精确的横波层速度。

The more precise S-wave interval velocity can be obtained by using travail times of VSP converted wave and iteration .

VSP资料求层速度的射线追踪折线法

Ray - Tracking Method of Computing Interval Velocities for VSP

同时给出了利用地震层速度预测地应力的BP神经网络模型，以在钻前预测井壁稳定性。

Meanwhile , the predicting method of stress is proposed based on BP 's neural network by using the seismic interval velocity , in order to predict borehole wall stability .

用P-SV波叠加剖面合成横波层速度剖面

Deriving a S-wave interval-velocity section from P-SV wave stack section

CFP层速度扫描建模方法

Interval velocity scan for model building using CFP technology

SiO脉泽速度频谱的一种分析模型&恒星脉动对恒星包层速度结构的影响

An Analytical Model for the Velocity Spectra of SiO Maser & the Effect of Stellar Pulsation on the Velocity Structure in Stellar Envelope

利用该方法还可以反演出VSP测井接收范围之外的上、下地层的层速度（这些层速度不能通过VSP资料解释得到）。

The method can also be used to determine the velocities of overlying and underlying layers beyond the range of VSP log .

Mira变星的有轴对称转动膨胀的拱星包层速度流场

The Velocity Fields of Axial-Symmetrically Rotating and Expanding Circumstellar Envelopes of Mira Variables

Mira变星拱星包层速度流场的二流模型

The Two-Fluid Model of The Velocity Fields of the Circumstellar Envelop of Mira Variables

AGB拱星包层速度流场和天体水脉泽时变的初步研究

Elementary Study of the Outflow Velocity of Axial symmetrical envelopes of AGB Stars and Time Variations of Water Masers

与VSP资料解释的层速度相对比，该方法反演出的地层层速度的分辨率较高，且只与资料的采样率有关，与VSP测井的接收点距无关。

Comparing to the interval velocity from VSP data interpretation , the resulted velocity is of higher resolution , and only subject to sampling rate and independent of receiving distance .

文中对影响波场延拓层速度精度的三个主要因素进行了校正，校正后的波场延拓层速度结果与VSP层速度结果吻合很好。

Three major factors which influence the accuracy of interval velocity from wave field continuation are corrected , so that the two kinds of in - terval velocity are well consistent .

本文给出了Dix公式计算层速度的误差公式，并对误差因素进行了分类。

The error formula for interval velocity derived from Dix formula is given and the error factors are divided into several categories .

应根据常规偏移剖面拾取的时间层位进行层速度修改，力求在纵、横两方向上保持层速度平滑，使CRP道集拉平。

It should make modification of interval velocities according to picked time horizons in ordinary migrated sections , making efforts to keep smooth variation of interval velocities both in vertical and in lateral directions and align the CRP gathers .

采用振幅信息、沿层速度分析、波阻抗剖面和地震岩性模拟（SLIM）对砂体和含油气边界进行预测，取得了较好的效果。

Sand body and oil or gas boundaries were predict - ed using amplitude information , velocity analysis along a formation , wave impedance section and seismic lithology modeling ( SLIM ) . Quite good result has been obtained .

普通的DIVA方法一般只选择一种岩性的层速度作为背景速度，因此存在岩性解释的多解性，不适合对复杂岩性组合的岩性体作预测。

Common DIVA methods ( differential interformational velocity analysis meth-ods ) generally take interval velocity of one lithology as background velocity , thus resulting in lithologic multiple solution .

目前普遍采用的方生是由速度谱先求取叠加速度，然后再用Dix公式求取层速度；

The usual method for obtaining interval velocity is to derive stacking velocity from velocity spectrum , then to calculate interval velocity by Dix formula .

根据水平迭加速度谱用DIX公式求取层速度的方法，只适用水平层状介质。

The method of employing DIX formula to get interval velocity from the spectrum of horizontally stacking velocity is only applicable to hori - zontal layered-medium .

同时，用时移动校正τ0分析谱计算层速度较以往用Dix公式由叠加速度计算层速度精度要高。

At the same time , the interval velocity derived from the time_ shift _corrected spectrum τ 0 is more accurate than that derived from the traditional Dix_equation_calculated stacking .

在地震剖面上多表现为低频的强反射，层速度为2500～5000m／s。

On the seismic reflection profile , it pre-sents lower frequency and stronger reflection , the layer speed often changes between 2 500 m / s and 5 000 m / s.

运用DST和RFT测压、地震层速度和测井声波时差趋势多项式法换算压力数据，作出了超压剖面图及超压顶面等深图等，据此分析了盆地超压及高温环境形成机制。

The superpressure cross section and equal depth ( to the top of superpressure ) map were drawn up through pressure measurement by DST and RFT and pressure calculation by polynomial method according to the seismic interval velocity and acoustic interval transit time logging data .

在地表附近沉积层速度约3.50km/s左右，在黄河地区该层厚度最大，约5.5km。

The velocity in the sedimentary layer is about 3.50 km / s , which is much thicker near the Yellow River ( 5 or 5.5 km ) .

层速度的降低范围大致为635m，其中东北方向变化约360m，西南方向约275m，速度值降低幅度大17%以下；

From steam drive well to both directions , the radiation zone of interval velocity decline were 635m , it 's 275m in the northeast , and the remainder were in the southwest . Interval velocity dropped 17 percent .

浅层速度横向变化对深层速度分析的影响

The Influence of shallow lateral velocity variation upon deep velocity analysis

倾斜层速度值坐标的平面校正

The correction of coordinates corresponding to the velocities of dipping reflectors

二是初始层速度值的准确度。

The other one is the accuracy of initial interval velocity .

层速度反演效果影响因素分析

An analysis of factors affecting the effect of interval velocity inversion

马尼特坳陷剩余层速度的计算和应用

The computation and application of residual interval velocity in Manite depression

利用层速度钻前预测安全泥浆密度窗口研究

Prediction of safe mud density window by interval velocity before drilling