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   折射速度 的翻译结果: 查询用时:0.258秒
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折射速度
相关语句
  refraction velocity
     In the case where we only have uplayer velocity but don′t know refrac- tion velocity,this method gives accurate refractor,has good adaptability to tough undulation refractor and lateral-variant refraction velocity, and successfully calculates accurate refraction velocity.
     该方法可利用多次覆盖资料,在只知道上层速度而不知道折射速度的情况下,能准确地给出折射界面的位置,能适应界面剧烈起伏和折射速度有横向变化的情况,并能顺利地求取准确的折射速度值。
短句来源
     Refraction statics is introduced in this paper which makes use of the first arrivals of refractions to obtain refraction velocity and delay time. Thus, near surface depth model can be restored and the influence of low velocity zones on reflection time distance curve can be eliminated.
     本文介绍了折射静校 ,它利用折射波初至时间求得折射速度、延迟时间 ,从而恢复近地表深度模型 ,消除低降速带对反射时距曲线的影响。
短句来源
     3D refraction static corrections technique is a complete set of techniques,which is concerned with such steps as pickup of first breaks of refractions on seismic records,strata partitioning of refractors,analyzing refraction velocity,computation of time delay,building up near-surface model and computing datum statics.
     三维折射静校正技术是一项配套技术,它涉及地震记录的折射初至拾取、折射层段划分、折射速度分析、延迟时计算、建立近地表模型及计算基准面静校正量等一系列步骤。
短句来源
  相似匹配句对
     Speed Devils
     魔力速度
短句来源
     MAT CHING SPEED
     匹配的速度
短句来源
     CALCULATION OF REFRACTION VELOCITY SPECTRUM BY τ-P TRANSFORMATION
     利用τ-P变换计算折射速度
短句来源
     Tomography of two-dimensional medium velocity by refraction wave.
     用折射波对二维地层速度进行成像
短句来源
     New LVL refraction method
     LVL折射新方法
短句来源
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  refraction velocity
The Moho discontinuity with refraction velocity of 7.8 to 8.4 km/s has a maximum depth of 37-39 km under the southern central portion of the peninsula.
      


Fu Dandan and He Qiaodeng:Seismic refraction migration,OGP, 23(4)1988:460~467 The inversion of near-surface structure using refraction first arri- val is an important task of refraction interpretation and refraction static correction.A method for fast giving accurate refractor is recom- mended here;it includes these steps:(1)obtaining both the critical distance for each shot point and the travel time from shot point to critical point,(2)constructing the refractor using the travel time and ellipse method.This...

Fu Dandan and He Qiaodeng:Seismic refraction migration,OGP, 23(4)1988:460~467 The inversion of near-surface structure using refraction first arri- val is an important task of refraction interpretation and refraction static correction.A method for fast giving accurate refractor is recom- mended here;it includes these steps:(1)obtaining both the critical distance for each shot point and the travel time from shot point to critical point,(2)constructing the refractor using the travel time and ellipse method.This method may use multiple-coverage data.In the case where we only have uplayer velocity but don′t know refrac- tion velocity,this method gives accurate refractor,has good adaptability to tough undulation refractor and lateral-variant refraction velocity, and successfully calculates accurate refraction velocity.

傅旦丹,何樵登:地震折射偏移,《石油地球物理勘探》,23(4)1988:460~467由折射初至精确地反演近地表表层结构,一直是折射解释和折射静校正工作的重要内容。本文提出一种能快速准确地给出折射界面的方法:首先在每一炮点处求得临界距离值及从炮点到临界点的旅行时;然后根据该旅行时用椭圆法来构制折射界面。该方法可利用多次覆盖资料,在只知道上层速度而不知道折射速度的情况下,能准确地给出折射界面的位置,能适应界面剧烈起伏和折射速度有横向变化的情况,并能顺利地求取准确的折射速度值。

On setting of complex surface geologic condition and laterally sharp variation in velocity in low velocity layers of varying height, conventional height and residual statics cannot reach satisfactory results. Refraction statics is introduced in this paper which makes use of the first arrivals of refractions to obtain refraction velocity and delay time. Thus, near surface depth model can be restored and the influence of low velocity zones on reflection time distance curve can be eliminated. The Comparison between...

On setting of complex surface geologic condition and laterally sharp variation in velocity in low velocity layers of varying height, conventional height and residual statics cannot reach satisfactory results. Refraction statics is introduced in this paper which makes use of the first arrivals of refractions to obtain refraction velocity and delay time. Thus, near surface depth model can be restored and the influence of low velocity zones on reflection time distance curve can be eliminated. The Comparison between height statics, ‘Green Mountain' refraction statics and ProMax refraction statics to field data shows that the effect of ‘Green Mountain' refraction statics is most obvious in the western areas of Sichun province.

在地表地质条件复杂、低降速带速度横向变化大、厚度分布不均匀的地区 ,仅作一般的高程静校和剩余静校无法得到满意的结果。本文介绍了折射静校 ,它利用折射波初至时间求得折射速度、延迟时间 ,从而恢复近地表深度模型 ,消除低降速带对反射时距曲线的影响。还应用了高程静校、绿山折射静校、ProMax折射静校对实际资料作了对比处理 ,认为在川西地区绿山折射静校效果更为明显

3D refraction static corrections technique is a complete set of techniques,which is concerned with such steps as pickup of first breaks of refractions on seismic records,strata partitioning of refractors,analyzing refraction velocity,computation of time delay,building up near-surface model and computing datum statics.In order to improving the final effects of static corrections,strict QC for above-mentioned links is needed.It should ensure that the times of first breaks of most traces are correct while picking...

3D refraction static corrections technique is a complete set of techniques,which is concerned with such steps as pickup of first breaks of refractions on seismic records,strata partitioning of refractors,analyzing refraction velocity,computation of time delay,building up near-surface model and computing datum statics.In order to improving the final effects of static corrections,strict QC for above-mentioned links is needed.It should ensure that the times of first breaks of most traces are correct while picking up times of refracted first breaks,that can ensure the subsequent processing to meet the demand.Because the times of refracted first breaks on the seismic records are characteristics of continuity and high folds,increasing statistical effects,the near-surface models building up therefor are more practical and computed statics are more correct.3D refraction static corrections are suitable for such complex surface conditions as mountains,transient zones,loess plateaus,hills,which have more severe static corrections problem.

三维折射静校正技术是一项配套技术,它涉及地震记录的折射初至拾取、折射层段划分、折射速度分析、延迟时计算、建立近地表模型及计算基准面静校正量等一系列步骤。为了提高最终静校正效果,要求对上述各个环节实行严格的质量监控。在拾取折射初至时间时,必须确保大部分道的初至时间是正确的,才能保证后续处理符合要求。因地震记录折射初至具有连续性和高覆盖次数,增加了统计效应,所以由此建立的近地表模型更加真实,计算的静校正量更加准确。三维折射静校正技术适用于复杂地表条件,如山地、过渡带、黄土塬、丘陵等静校正影响比较严重的地区

 
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