Three - component ( 3c ) seismic survey with p - wave source and 3c geophones has drawn much attention for its great success in identification of lithologies , fractures , and fluids 摘要纵波震源激发、三分量检波器接收的三分量地震勘探，因在岩性、裂隙和流体识别等方面获得成功，而备受关注。
Get consistent rock parameters : p - wave velocity , porosity , and mineral properties of sands , fluid modulus and density . for multiphase fluids , we need to know properties and fractions of each component 获取一致的岩石参数： p波速度，孔隙度和砂体的矿物特性，流体模量和密度。对多相位流体，我们需要知道每个分量的特性和组成。
The resalts of numerical simulating indicat that velosity of p - wave has gentle anisotropy in fructured media at same time , the change of fractured density and azimuty has a little effects on velosity of p - wave 其数值模拟表明，在裂隙介质中，地震纵波速度只具弱的各向异性，同时裂隙密度和裂缝方位的变化对纵波速度的影响不大。
Using the directional characteristic of the positive direction explodes elongated charge , wavefront of the elongated charge in the explode location shown higher directivity is in - phase stacked , and also propitious for p - wave to explode and travel 细长药柱震源利用正向激发长药柱的定向性特点，达到激发后的波前面在垂直向下的方向上是同相叠加的，显示出很强的定向性，有利于纵波的激发和传播。
The combination of soil layer has negligible effect on the p - wave propagation . 4 the effect of complex media basin on seismic wave propagation the significant parameters controlling the propagation in basin contain sediments / bedrock shear - wave velocity contrast , sediment depth and the degree of saturation 4 、复杂介质情况下盆地对地震波传播的影响基岩与沉积层的剪切波速比、沉积层的深度、沉积层的饱和度是影响地震波在沉积盆地中传播的重要因素。
In this paper the author studies the theory and method of refraction tomography at uppermost mantle . the images of p - and s - wave velocity lateral variation are rebuilded at uppermost mantle beneath china continent , and anisotropy of p - wave velocities are obtained on the basis of pn and sn travel time data in china and adjacent area by tomography technique 本文在详细分析研究了上地幔顶部折射波层析成像技术的理论和方法及其发展历程的基础上，搜集了中国大陆及邻区的pn和sn到时资料，利用层析成像技术，重建了中国大陆上地幔顶部的p波和s波速度横向变化图像，并反演出p波波速的各向异性分布。
In order to study the influential factors on seismic attribute , the authors use the rock modeling software to simulate the changes of mineral constituent , porosity , fluid property and saturation of rocks and further study the changes of the seismic attribute basing on the velocity of s - wave , the velocity of p - wave and various elastic modeling quantities of the rocks by means of forward modeling 摘要为了研究影响地震属性的因素、应用岩石建模软件模拟岩石的矿物组分、孔隙度、所含流体性质以及饱和度等变化，对其纵横波速度、各种弹性模量的变化情况通过正演的手段得到了解。
For processing of 3d and 3c seismic data , the reflected p - waves can be processed with the conventional methods , while the reflected converted waves can not be processed with the conventional p - wave processing methods , because their travel paths are asymmetrical , their common midpoint gathers are no longer common reflection point gathers , and their time - distance equation is non hyperbolic 在三维三分量地震勘探资料处理中，对于反射纵波资料可以采用常规方法进行处理；而对于反射转换波资料，由于其传播路径的非对称性，转换波共中心道集不再是共反射点道集，转换波时距方程也不是双曲方程，因此不能采用常规纵波处理方法来处理转换波资料。
Directed by wave theory of fractured media , the elastic parameters of eda medium are determined in the light of hudson - fractured theory , and christoffel equation gives the formula of the phase velocity of p - wave by which , effects of velocity on behalf of kinetic characteristic and reflection coefficient on behalf of dynamical characteristic form fractured density and azimuty is discussed 本文以裂隙介质的波动理论作指导，根据hudson裂隙理论，求出eda介质的弹性参数。在此基础上，应用christoffel方程求出的地震纵波相速度表达式，探讨了裂缝密度和裂隙方位对代表波场运动学特征的纵波速度和代表波场动力学特征的反射系数的影响。
