加权叠加 meaning in English
weighted stacking
Examples
- Auto adapted weighted stacking
自适应加权叠加 - Doing the further research on the division frequency stack on the foundation of study of predecessor , at first the residual moveout correction is done to the seismic record , make the phase axle regularity , doing foundation for the same phase stack ; then carried on division scale processing by wavelet transform ; spectrum whitening is done to each scale , the high and low frequency band need to do prolongs , the middle frequency bands only increase the value of the frequency spectrum ; several kinds of methods that estimate the value of signal - noise ratio has been studied further , and summarize their advantage and disadvantage as well as the scope of application ; the seismic record after spectrum whitening is stacked by weighting with the value of the signal - noise ratio ; then estimate the value of signal - noise ratio which is each scale section after stacking , the scale that the signal - noise ratio is big is assigned big weighting , otherwise , the scale that signal - noise ratio value is small is assigned small weight ing , and carried on weighted reconstruct to each scale section
本文在前人研究的基础上，在分频叠加方面做了进一步的研究。首先对地震记录进行剩余时差校正，校齐同相轴，为同相叠加做好基础工作；然后对地震记录用小波变换的方法进行分尺度处理；对各个尺度分别做谱白化，对于高、低频段需要做频带延拓，中间频段仅提升频谱值；对于几种信噪比定量估计的方法进行了深入的研究，并且总结了它们的优缺点以及适用范围；对谱白化后的地震记录用信噪比估计值作为加权系数进行加权叠加；对于各尺度的叠加剖面也进行信噪比估计，对于信噪比大的尺度给予大的加权系数，反之，信噪比值小的尺度给予小的加权系数，对各尺度叠加剖面进行加权重构。 - In this paper , author consider the combination of theory with practice especially . in the process of study , the avo method technology and technology of seismic data process and the study of interpretation were combined . on the basis of extensive absorbing the advance technology inside and outside , the theory of generalized linear inversion avo and non - linear avo inversion and weighted stacking technology were discussed detailed to the characteristic of heterogeneous reservoir . then , the forward and inversion of those methods were performed
在本文的研究中， avo方法技术与地震资料处理及解释研究得到了紧密地结合，在广泛吸取国内外avo油气检测先进技术的基础上，针对非均质气藏特点的需要，文章详细论述了广义线性avo反演方法和非线性avo反演方法、 avo反演中的加权叠加技术的方法原理，并对上述方法分别进行了详细的模型的正演和反演的研究。 - The methods were realized directly inversion of the possion ' s ratio from cdp gather and gas - bearing identify . by applied the late theory of avo technology , after inputting the p wave section and s wave section , the p wave and s wave impedance were obtained by applying simulate anneal inversion and used the log as a constrain condition , eventually , obtain the elastic parameter u and x by p and s impedance . then , the gas - bearing will be identified by u and x . by applying this method , the avo combination inversion of prestack and post were realized
利用上述的反演方法实现了泊松比从道集的直接反演，利用加权叠加技术实现了含油气的识别，并利用当今avo研究的最新成果，以加权叠加技术分离出的p波和s波剖面作为输入，在测井的约束下，采用模拟退火方法分别进行p波和s波波阻抗反演，通过p波和s波波阻抗来求取弹性参数和，再通过和的联合解释来进行含油气的判别，实现了avo的叠前叠后的联合反演。