residual static correction meaning in Chinese
剩余静校正
Examples
- The method can be used to compute large residual static corrections in complex 3d near - surface areas such as areas covered by desert and gebi . 5 ) based on 2d refraction statics method in cmp domain , 3d refraction static method of cmp domain is presented
该方法是在二维基础上发展的，在折射界面起伏不大的情况下，它可以同时解决三维cmp道集中长波长静校正和短波长静校正问题，可适用于塔里木沙漠、长庆黄土塬覆盖区。 - 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：消除近地表因素对资料采集的影响，包括静校正和噪音压制技术等；叠前拓宽地震资料领带，包括振幅补偿和叠前反褶积技术等；借助高精度速度分析、剩余静校正和高次项nmo技术，通过多次覆盖叠加，消除资料中随机噪声干扰、提高资料信噪比，尤其是高频端反射信息的信噪比，改善高频反射和弱反射信号信噪比，提高“高频反射死亡线” ；叠后有限反射颇带识别、抬高优势频率等。 - Solving the static correction problems under complex near - surface conditions is a systematic engineering . first , careful field weathering investigation must be done , then we have to take full advantages of refraction first - break information and field weathering investigation information to compute field static correction and large residual static corrections with various refraction first - break statics methods , finally , reflection statics methods are used iteratively to solve the residual statics problems . to solve serious static correction problems in complex near - surface areas of western china , different refraction first - break statics methods are studied in this thesis . the main study contents are as follows : 1 ) the propagation features of refraction for horizontal layered and dip media are studied firstly , it lays a good theoretical foundation for later statics method studies
本文针对目前西部油气勘探中迫切需要解决的复杂地表区静校正技术难题，对初至折射波解决二维和三维长、短波长静校正问题的正反演方法进行了深入的研究和探讨，研究内容主要包括( 1 )水平层状和倾斜界面折射波的传播规律，为后续的折射静校正方法研究奠定理论基础； ( 2 )二维复杂层状介质地震折射波正演方法，该方法可适用于折射面起伏不大、低速层和折射层速度变化不大的情况。 - 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
摘要针对戈壁、沙丘地区地震资料的特点，通过对原始资料进行质量控制、高通滤波、倾角滤波、野外静校正、地表一致性反褶积、精细速度分析、叠前去噪、剩馀静校正多次迭代、叠后去噪和偏后修饰等处理，提高了低信噪比地区地震剖面的资料质量，摸索出了一套戈壁、山前、沙丘等复杂地区地震资料处理技术。