It consists of fitting seismic ray traveltimes and positions to data calculated by ray tracing. In order to improve inversion stability and efficiency, seismic ray is described by Hamilton function and ray tracing is done in phase space. Validation tests on synthetic and practical data are analyzed. The tests show that this tomographic method is effective for estimating velocity field in complex media.

為提高反演的穩(wěn)定性和計(jì)算效率黄片视频免费观看，引入了Hamilton函數(shù)描述射線啊啊啊啊轻点视频，在相空間計(jì)算反演所需的射線路徑和目標(biāo)函數(shù)對(duì)模型參數(shù)的導(dǎo)數(shù)黄色视频大全免费，對(duì)理論模型和實(shí)際地震資料進(jìn)行了試算九色911最新地址，試算表明該方法對(duì)復(fù)雜介質(zhì)具有較強(qiáng)的適應(yīng)能力免费国产自在线拍。

First of all, the report introduced evolution, achievments and problems in the study of anisotropy in the inner of earth. The first-order hyperbolic system of equations is work out, which is used to describe the wave motion in 2D transversely isotropic media. Utilizing the characteristics of free-divergence, We have imposed MacCormack theme that is used to simulate multicomponent records in anisotropic media and have developed a fast high order vectorized finite-difference algorithm adapted for the vector supercomputer.

本文首先闡述了地球內(nèi)部介質(zhì)各向異性研究的沿革人人摸人人色人人操视播放、成就和問題，接著給出了描述二維橫向各向同性介質(zhì)中波動(dòng)的一階雙曲型方程免费又大又粗又爽的视频，利用其自由發(fā)散特性91精品福利区在线观看，構(gòu)制了各向異性介質(zhì)中多波多分量地震記錄數(shù)值模擬的MacCormack算式，導(dǎo)出了適用于并行計(jì)算的二維橫向各向同性介質(zhì)中波動(dòng)的有限差分模擬算子黄色视频久久久久，該算子具有可并行化計(jì)算欧美老人激情综合网欧美综合激情、相位差小等優(yōu)點(diǎn)。

At present, the strong ground motion records are still in processing and can not be used in studies. However, earthquake intensity isoseismal, especially in near source region, as a macroscopic description of distribution of strong ground motion, shows the relativity with earthquake source process in some extent.

汶川地震后射一射人人操一操，雖然目前還沒有得到完整的強(qiáng)震記錄18禁片免费网站在线看，但是作為震害宏觀描述的地震烈度，在一定程度上反應(yīng)了汶川地震近斷層地震動(dòng)與震源過程之間的相關(guān)性，如近斷層地震動(dòng)的方向性效應(yīng)和上盤效應(yīng)免费看国产黄A片在线。

Nevertheless, liquefaction has been so widespread in a number of recent earthquakes that it is often associated with them.

事實(shí)上精品欧美日韩一区二区麻豆91，在千百年之前的書面記錄中所描述的地震時(shí)的一些現(xiàn)象，從今天的知識(shí)來看在线国产黄色站，也是與沙土液化密切相關(guān)的色哟脚在线观看视频。

The distributary river course reservoir in the Lower Member of Minghuazhen Formation in an oilfield of Bohai Basin was modeled. The modeling units were divided using the integrated geological modeling method based on seismic, log and geological data. The sedimentary microfacies features of the modeling units were described. The geological knowledge base, including quantitative description of microfacies in every unit, probability function of facies, connection probability of sand body, was established. The geological model of reservoir was proposed on the basis of stochastic reservoir modeling by using an objectbased simulation method.

以渤海某油田新近系明化鎮(zhèn)組下段緩坡三角洲平原亞相分流河道儲(chǔ)層為例，利用以精細(xì)地質(zhì)建模為目的的地震东北粗口熟女丰满高潮、測井和地質(zhì)一體化綜合研究方法网友自拍偷拍一区，合理劃分模擬單元并定量描述各單元內(nèi)沉積微相特征；結(jié)合相概率函數(shù)和砂體連通概率等定量約束條件午夜激情黄网，建立了半定量—定量儲(chǔ)層地質(zhì)知識(shí)庫精品国产AV片儿，實(shí)現(xiàn)了等時(shí)建模、成因控制相建模日韩性色自拍视频在线观看网站、確定性條件約束隨機(jī)建模三者的有效結(jié)合黄网站进入；采用基于目標(biāo)的隨機(jī)模擬方法建立了儲(chǔ)層地質(zhì)模型。

With the data from World Bank and the statistical data of China mainland, and the studying results of Japan seismologist, it is systematic to state that the social wealth, a key element in vulnerability analysis in seismic risk, could be summarily described by such macroeconomic index as the Gross Domestic Product.

通過引用世界銀行和中國的統(tǒng)計(jì)資料插入美女嫩穴漫画，以及日本學(xué)者的分析結(jié)果jjzz精品视频，較系統(tǒng)地論述了地震災(zāi)害分析中涉及的社會(huì)財(cái)富，可以用宏觀經(jīng)濟(jì)指標(biāo)——國內(nèi)生產(chǎn)總值GDP來描述免费操视频在线。

Detection and description of lithological parameters of reservoir, particularly, reservoir parameters (porosity permeability and saturation), are the fundmental problems of reservoir Geophysics, therefore, it is required to develop direct and inversive theorey of reservoirs.

二av日韩无码爱爱、探測和描述儲(chǔ)集層的巖性參數(shù)，特別是油儲(chǔ)參數(shù)是油儲(chǔ)地球物理學(xué)的基本課題免费www你懂的网站视频，這就要求發(fā)展儲(chǔ)集層的地震正中国野外一级视频片、反演理論。

Based on this line of thought, following conclusions are attained: if the seismic design was based on the force method, as long as the power spectra of the model can be close enough to fit the actual average power spectra of the earthquake acceleration records, the model can be used to simulate seismic process; if the seismic degsin was based on the displacement methods, the more stringent constrains should be applied to the power spectra to model.

一個(gè)能夠正確描述結(jié)構(gòu)在地震作用下響應(yīng)規(guī)律的地震動(dòng)模型就是一個(gè)合適的模型自拍欧美日韩制服视频，其他的限定條件并不重要国产性爱专区。

In viewpoint of the lack of enough basic data of foreign oilfields, under the conditions of insufficient core data, no constrains of seismic interpreted cross and fault data, the rational fine 3D geological model has been established by fine oil reservoir characterizing technique including the contrast results of individual layers, second well logging interpretation and so on.

針對(duì)國外油田多數(shù)基礎(chǔ)資料不全，必須在缺乏取心資料一级一片免费观看，無地震解釋層面及斷層數(shù)據(jù)約束的條件下成年人的福利，運(yùn)用層序地層學(xué)小層對(duì)比結(jié)果和二次測井解釋等精細(xì)油藏描述技術(shù)，并插入虛擬井控制井間構(gòu)造欧美十日韩十国产，進(jìn)而建立了合理的精細(xì)三維地質(zhì)模型在线观看无码国产剧情AV，為該油田的儲(chǔ)層預(yù)測及數(shù)值模擬提供了基礎(chǔ)數(shù)據(jù)，并在實(shí)際應(yīng)用中取得了良好效果99这里只有精品首页。

In the paper, based on a large number of cores in the macroscopic and microsopic characteristic description, according to logging, seismic, analysis assay data and other data, a further and detailed analysis is carried on for the sedimentary characteristics, sedimentary facies, sand body distribution, sedimentary model and sedimentary evolution of the Eogene Shahejie Formation in the western beach area of Liaohe Basin.

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