stack velocity 中文意思是什麼

stack velocity 解釋
出煙速度
  • stack : n 1 （麥桿等的）堆，垛；乾草堆。2 積材，層積，堆積；〈英國〉一堆〈木材等的計量單位，＝108立方英尺...
  • velocity : n. 1. 迅速；快速。2. 速度，速率。3. 周轉率。
  1. The frontal structure of longmenshan in the west of sichuan is very complex, showing intense structure deformation in overthrust belt, high structure amplitude, steep stratigraphic dip, developed fault blocks, complex seismic wave field, frequent change of lateral velocity, and poor image of post - stack time migration processing

    摘要川西龍門山前緣構造非常復雜，逆掩推覆構造帶構造形變強烈，構造幅度大，地層傾角陡，斷塊發育，地震波場復雜，速度橫向變化大，常規疊后時間偏移處理成像效果較差。
  2. The clues and techniques to improve the resolution of data processing are 1 ) removing the affection of near surface factors on data acquisition, including static correction and noise eliminating technique etc, 2 ) broadening the frequency band of pre - stack seismic data, including amplitude compensation and pre - stack deconvolution etc, 3 ) improving s / n ratio of high frequency and weak reflection signals through multiple coverage with high precision velocity analysis, residual static correction and high - order nmo, raising " dead line of high frequency reflection ", and 4 ) identifying post stack effective reflection frequency band, enhancing dominant frequency and so on

    主要包括：消除近地表因素對資料採集的影響，包括靜校正和噪音壓制技術等；疊前拓寬地震資料領帶，包括振幅補償和疊前反褶積技術等；藉助高精度速度分析、剩餘靜校正和高次項nmo技術，通過多次覆蓋疊加，消除資料中隨機噪聲干擾、提高資料信噪比，尤其是高頻端反射信息的信噪比，改善高頻反射和弱反射信號信噪比，提高「高頻反射死亡線」 ；疊後有限反射頗帶識別、抬高優勢頻率等。
  3. Basically, the cross - well seismic data processing has two steps : traveltime velocity inversion tomography for direct arrival and seismic reflection stack image

    井間地震資料的處理主要包括兩個最基本的內容，即直達波旅行時速度反演層析成像和地震反射波疊加成像。
  4. In view of characteristics of seismic data of gobi - sand dune areas, this paper, through various data - processing means such as quality control, high - pass filltering, dip angle filltering, field static correction, surface consistency deconvolution, precise velocity analysis, denoising before stack, multiple iterative operation of residual static correction, denoising after stack and modification after shift, has raised the data quality of seismic profiles in low signal - to - noise ratio areas and managed to form the seismic data - processing technique for such complex areas as gobi, foreland and dune

    摘要針對戈壁、沙丘地區地震資料的特點，通過對原始資料進行質量控制、高通濾波、傾角濾波、野外靜校正、地表一致性反褶積、精細速度分析、疊前去噪、剩餘靜校正多次迭代、疊後去噪和偏後修飾等處理，提高了低信噪比地區地震剖面的資料質量，摸索出了一套戈壁、山前、沙丘等復雜地區地震資料處理技術。
  5. Adaptive mcf velocity stack

    自適應多道濾波速度疊加
  6. A hybrid migration method, named " fourier finite - difference migration ", is a post - stack depth migration scheme. the downward extrapolation operator is split into three operators : one operator is a phase - shift operator for a chosen constant background velocity, another operator is the well - known first - order correction term, and the third operator is a finite - difference operator for the varying of the velocity function. phase - shift downward extrapolation and finite - difference downward extrapolation preserves the advantage of phase - shift method and finite - difference method

    傅立葉有限差分（簡稱ffd ）偏移演算法是一種疊后深度偏移演算法，其向下延拓運算元是一種混合運算元，包括三項：一項是處理常速的相移運算元，一項是一階相移修正運算元，最後一項是類似45度方程的有限差分運算元，用來處理劇烈橫向變速。
  7. Firstly, this paper introduces the main concepts of digital filtering, nmo, statics, velocity analysis and stack and so on

    本文首先介紹數字濾波的基本概念、動靜校正、速度分析及水平疊加等等。
  8. Geological model is set up by using seismic data interpretation result to perform ray - trace forward modeling analysis, and to guide the establishment of initial velocity model of pre - stack depth migration, thus reaching the purpose of precise image of complex structure under complex surface

    利用已有地震資料解釋成果，建立地質模型進行射線追蹤正演模擬分析，從而指導疊前深度偏移初始速度模型的建立，達到了復雜地表下復雜構造精確成像的目的。
  9. A synthetic example shows that the proposed migration velocity analysis method can determine accurately the distribution of permittivity and that stack migration profile fits the true model

    合成雷達記錄的偏移速度分析和偏移疊加結果表明，全局最優化偏移速度分析有較高的精度，偏移疊加剖面與實際構造一致。
  10. This paper reviewed the theory, development and applications of 3 typical velocity analysis technologies, stack velocity analysis, migration velocity analysis and tomographic inversion

    主要對疊加速度分析、偏移速度分析和速度層析反演三大類典型的速度分析方法的基本原理、發展及應用條件等作簡要的回顧與介紹。
  11. Then, software about velocity analysis, stack and migration are studied and analyzed basing on the characteristics of the hydrate

    其次，我們還針對天然氣水合物的特性，研究並分析了資料處理過程中的速度分析、疊加處理、和偏移處理軟體。
  12. 1. on the bases of some basic suppositions, terzaghi ' s one dimensional consolidation and principles of layered summation method, the paper draw the formula which can calculate the embankment of layered filling and take the formula into programme ; 2. building the finite difference model of layered high - stack soil, carrying out numerical simulation of construction sequence, construction velocity, interface element of layer - stacked, the author get the numerical solution

    1利用一些基本假定，根據太沙基一維固結理論和分層總和法的基本原理，推導出來計算分層填築體自身沉降的公式，並編制了程序； 2建立了分層填築高填方路堤問題的有限差分模型，並對分層填築的施工順序、施工速度，界面單元進行了數值模擬，獲得了位移場和應力場的數值解。
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