pre-stack data 中文意思是什麼
pre-stack data
解釋
疊前資料-
Actual seismic data procession shows the efficiency of this method to increase the signal - to - noise ratio of horizontal stacked profile, especially for inaverage signal - to - noise ratio in pre - stack trace assemblage data
實際地震資料處理表明，這種方法能夠有效地提高水平疊加剖面的信噪比，尤其對于疊前的共中心點道集資料中信噪比不均衡的情況，效果更好。 -
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。 -
The research contents include the foundational research on petrophysics, the feasibility of 4 - d seismic in water driven reservoir, pre - stack and post - stack 4 - d seismic data processing, static reservoir description, 4 - d seismic interpretation and dynamic reservoir description
研究內容涉及巖石物理基礎理論、水驅四維地震可行性分析、迭前和迭后四維地震資料。處理、靜態油藏描述和四維地震資料解釋與動態油藏描述等，取得了許多重要的研究成果。 -
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。 -
Finally, using the static reservoir description as the basis, pre - stack and post - stack 4 - d seismic data processing result as the constraint, the 4 - d seismic feasibility study as the evidence, began basic dynamic reservoir description in order to analyz
最後，以地震靜態油藏描述為基礎，以迭前和迭后四維地震資料處理結果為約束，以四維地震可行性研究結論為依據，進行初步的油藏動態描述，主要分析注水前沿的推進過程。 -
Fourthly, summarized the methods and the principals for pre - stack and post - stack 4 - d seismic data processing ; proposed the criteria for seismic data process ; built a set of processing flow. through the real data processing ( 029 fault block ), obtained reasonable results. the processed result was approved by the further production well
第四，總結了迭前、迭后四維地震資料處理的方法與原理，針對高29斷塊的實際資料，提出了處理準則，建立了處理流程，獲得了良好的處理效果，並得到開發開發調整井的證實。 -
Based on actual data, emphasizing particularly on the course of consolidation and deformation of preloading method combing vacuum with stack - load, the paper illustrates the mechanism of deformation of pre loading method combing vacuum with stack - load from consolidation and final effect, and calculates final settlement by delamination summation - method and hyperbola method, presenting relative parameters used for designing and execution control
摘要以實際監測資料為依據，對真空聯合堆載預壓法的固結過程和變形過程進行了分析，從固結和最終效果這兩個基本問題上闡述了真空聯合堆載預壓法的變形機理，採用分層總和法和雙曲線法推算最終沉降量，並給出了相關的設計和施工控制參數。 -
It has been proved that application of forward model to pre - stack depth migration image is very helpful to improving image quality of seismic data processing
事實證明，這種將模型正演應用於疊前深度偏移處理成像的方法對于提高地震資料處理的成像質量具有非常重要的作用。 -
Aiming at the characteristics of seismic data from complex fault blocks in zhongyuan oilfield, the selection of key parameters in pre - stack migration and migration approaches were meticulously studied
針對中原復雜斷塊區地震資料的特點，對速度場的建立、疊前偏移中關鍵參數的選取以及偏移方法展開了深入細致的研究。
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