波场延拓的英文

• wave field extrapolation

• "波"英文翻译    wave
• "场"英文翻译    a level open space; threshin ...
• "延"英文翻译    prolong; extend; protract
• "拓"英文翻译    open up; develop; expand
• "位场延拓" 英文翻译 :    continuation of potential field; field continuation
• "延拓" 英文翻译 :    continuation
• "波场" 英文翻译 :    range; wave field
• "延拓场" 英文翻译 :    continuation field
• "延拓法" 英文翻译 :    continuation method
• "光波场" 英文翻译 :    light wave fields
• "基波场" 英文翻译 :    field of first harmonic
• "微波场" 英文翻译 :    microwave field
• "谐波场" 英文翻译 :    harmonic fields
• "行波场" 英文翻译 :    traveling-wave field; traveling-wavefield; travelling field; travelling-field
• "驻波场" 英文翻译 :    standing wave field; standing-wave field; stationary field
• "场延迟线探头" 英文翻译 :    field delay line probe
• "继续 拓展 延拓" 英文翻译 :    continuation
• "解的延拓" 英文翻译 :    continuation of solutions
• "解析延拓" 英文翻译 :    analytic continuation
• "可延拓的" 英文翻译 :    continuable
• "可延拓性" 英文翻译 :    continuability
• "连续延拓" 英文翻译 :    continuous extension
• "跳变延拓" 英文翻译 :    jump continuation
• "同构的延拓" 英文翻译 :    continuation of isomorphisms
• "向上延拓" 英文翻译 :    upward continuation

• In this paper , a " step - by - step " recursive 3 - d frequency - space wed scheme is presented to deal with real data
  本文采用三维频率空间域有限差分波场延拓算子以“逐步累加”的方式实现了三维波动方程基准面校正，并对实际数据进行了处理。
• A generalized high order screen extrapolator of double square root ( dsr ) equation is derived from the non - stationary phase shift formula of wavefield continuation , thus a new prestack depth migration method in the cmp - offset domain is proposed
  在波场延拓方面，从非稳态相移公式出发，推导出广义高阶屏双平方根波场延拓公式，从而得出了一种新的共中心点-炮检距域叠前深度偏移方法。
• The second step , on the base of the first step , the paper designs seven practical models which bases on the practical information of the seismic , by the same way the paper gets the record of the forward and the profile of the migration
  第二步，在第一步的基础之上建立了七个实际碳酸盐岩缝洞储层缝洞模型(由实际地震资料确定的) ，同样利用高效的波场延拓算子对七个模型进行了正演模拟和偏移处理。
• The dissertation focuses on seismic wavefield forward modeling and migration for the fractured reservoir . the paper integrates and researches the wavefield extrapolation operator for lateral variation of velocity , analysis of the wavefield characteristic , forward modeling and depth migration of prestack and poststack seismic wavefield , creation of wavelet , design of the model with fracture and cavity , and computation of reflectivity
  本文围绕缝洞储层地震波场正演与偏移问题，对横向变速波场延拓算子；叠前与叠后正演模拟；叠前与叠后深度偏移；子波的生成；缝洞模型的设计、反射系数的求取、正演、偏移及其波场特征分析进行了一体化研究。
• In term of analyzing and summarizing the existing achievement , propose an advanced and practical wavefield extrapolation operator and arithmetic of forward modeling and migration , which obtain numerical simulation and analysis completely and systemically and exploited new field of fractured reservoir seismic wavefield numerical simulation and applicationin in frequency - wavenumber domain
  在总结、分析前人研究成果的基础上，提出了具有前瞻性和实用性的波场延拓算子与正演、偏移算法，较系统全面地进行了数值计算与分析，开辟了频率?波数域缝洞储层地震波场数值模拟与应用的新领域。
• Comprehensively discuss the issues in application , adaptive condition and performance , propose a fast arithmetic of forward modeling and depth migration in common shot gathers with one - way acoustic wave equation based on vrselrf , and verify the arithmetic by numerical simulation . concisely discuss the cause of the creation of evanescence and the problem of lateral amplitude discontinuity result from it . fourthly , use the reflectivity model , computed to describe the fracture model , with the formula of computation reflectivity based on elastic - acoustic approximation , and the wavelet model computed by the method , wavelet creation with fourier transform , we proposed , in conjunction with vrselrf wavefield extrapolation operator
  第三，将频率波数域稳定的变参考慢度rytov近似广义屏波场延拓算子( vrselrf )应用于叠前与叠后正演模拟、叠前与叠后深度偏移，对算法应用中应注意的问题、适用范围、性能等作了较为全面的论述；提出了基于vrselrf的单程声波方程共炮记录正演模拟和深度偏移快速算法，并通过数值模拟试验对算法进行了验证；简要地讨论了倏逝波的产生原因及其带来的横向振幅不连续性问题。
• This conversion is based on the analytic expression of sonic and elastic wave equation , and use the different wave field extrapolation , which is initially used in seismic migration and forward modeling . this paper introduces the easy and efficient finite - difference method to realize the conversion by comparing three different methods
  论文经过对三种常规波场延拓方法( kirchhoff积分法、频率波数域法和有限差分法)优缺点的比较，采用了简单易用的有限差分方法来实现这种转换。
• The paper concentrates on seismic wave - field forward modeling and migration for the fractured reservoir . it researches the wavefield extrapolation operator for lateral variation of velocity , design four theoretical models and seven practical models with fracture and cavity . base on the progenitor , in the frequency - wavenumber domain with the pspi wavefield extrapolation operator and arithmetic of forward modeling and migration that applied lateral variation of velocity which is strong , the paper obtains the result of numerical simulation and the wavefield characteristic by the way of the forward modeling and depth migration of poststack seismic wavefield
  本文围绕缝洞储层地震波场正演与偏移问题，研究了适用于横向变速波场延拓算子，建立了四个理论的缝洞模型和七个实际的缝洞模型，在总结、分析前人的研究成果的基础上，利用适合横向速度剧烈变化的相移加插值的波场延拓算子，在频率?波数域对上述的地质模型进行正演、偏移处理，最后得到了缝洞储层地震波场的一些特征。
• Author , starts from the one - way wave equation of wavefield extrapolation , research the relationship and transform condition of wavefield extrapolation operators , and propose the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) which can adapt severe lateral velocity variations , in frequency - wavenumber domain , and the improved wavefield extrapolation scheme , also give the method to improve the computation efficiency . the achievement establishes the theoretic basis of the whole research
  首先，从波场延拓的单程波方程出发，系统地研究了频率波数域的波场延拓算子之间的相互关系和转换条件并在此基础上提出了能适应剧烈横向变速的频率波数域稳定的变参考慢度rytov近似广义屏波场延拓算子( vrselrf )和部分波场延拓改进方案及提高运算效率的措施，为整个研究打下理论基础。
• The seismic modeling algorithm includes in two key steps in which one is for calculating effective elastic parameters in a fractured and caved media by using elastic wave equation , the other is for wave extrapolating by using acoustic one - way wave equation based on an equivalent geology model consisting of those effective parameters
  地震正演方法包含两个关键步骤，一是利用弹性波动方程计算含缝洞介质的有效弹性参数，另一步骤是根据有效弹性参数构成的等效地质模型，用单程声学波动方程进行波场延拓。