震波到達 的英文怎麼說
中文拼音 [zhènbōdàodá]
震波到達
英文
cable break-
As the waves from the aleutian earthquake hit the hawaiian islands, they were driven ashore in a few places as a rapidly moving wall of water up to 6 meters high
當由阿留申群島地震引起的波浪到達夏威夷群島時,這些波浪在幾處地方形成了最高可達6米高的快速移動的水墻沖上海岸。Scientists locate earthquakes by measuring the time it takes body waves to arrive at seismographs in a minimum of three locations
科學家通過測定體波到達地震儀所需要的時間,以3個距離中最小的一個來確定地震的位置。By employing the theory of operator representation, the reflection / transmission operator is decomposed into the form of double domains in the scheme, so it is adaptable to laterally heterogeneous media and fluctuating reflectors, can mimic ava of reflections when the incident angle is less than 45
文中利用運算元可分表示理論將反射透射運算元分解成適合於雙域(空間域和波數域)運算的表達形式,使得本文得到的地震波數值模擬演算法可適應於一定程度橫向非均勻介質和界面起伏情況,在入射角小於45時能夠準確模擬振幅隨入射角( ava )的關系。The figure of daily mean value in resent year showed : the medium term anomaly with impulse jumps appeared 11 months before the event, and the maximum of anomaly was 84 times of the normal rising rate ; the short term anomaly appeared 4 - 1 month before the event, and the maximum of anomaly was 274 times of normal mean fluctuation ; the imminent anomaly appeared 9 days before the event, and the maximum of anomaly was 2. 5 times of normal mean fluctuation
年日均值圖顯示,中期異常出現在震前11個月左右,表現為脈沖式向上突跳及階躍式上升,最大異常量為日均正常上升速率的84倍;中短期異常出現在震前4個月和1個月,最大異常量為正常日均波動值的274倍;臨震異常出現在震前的第9天,震前25小時達到最高值,最大異常量為正常日均波動值的2 . 5倍。Under the framework of the pacific tsunami warning system, after an earthquake is detected by the seismograph of the hong kong observatory, the observatory would transmit the arrival time of seismic waves to the pacific tsunami warning center ( ptwc ) in hawaii
在太平洋海嘯警報系統的架構下,當香港天文臺的地震儀探測到地震發生,天文臺會把地震波抵達的時間傳送到位於夏威夷的太平洋海嘯警報中心。The columbia scientists measured the underground effects of earthquakes, determining how quickly their movement travels through the center of the earth to other places on the globe
哥倫比亞科學家測量了地震的地下效用,知道了地震波是如何迅速穿過地球的中心到達地球的其它地方。Alarms can go out before the shaking starts because there is a lag between the time it takes for different seismic waves to travel to the surface
預警能夠在地震開始前發出是由於在不同的震波到達地面之間會有一個時間差Prestack migration method, based on wave motion equation, is also developed for receiver function, and compared with ray method. both p - to - s conversion wave and direct p phase contained in receiver function are migrated and imaged by reverse - time migration for data gather including all receiver functions recorded in all seismological stations for one event, and imaging profile is finally obtained by stacking for all events
本文還在接收函數射線反投影疊加成像的基礎上,提出了一種基於波動方程的接收函數疊前偏移成像方法,將同一事件接收函數中的轉換波和直達p波震相以各自的速度向深度方向逆時延拓成像,並通過不同慢度接收函數的疊加,得到最終的偏移成像結果。The paper has presented a physical oil production technology by artificial earthquake, that is, vibration waves are caused in the oil - bearing formation, resulting in a series of vibration effects, there - fore, oil productivity or water injectivity is increased
摘要人工地震採油是通過地面可調頻振源進行一定頻率的振動,產生振動波,在油層發生一系列的波動效應,達到增產增注目的的一項物理法採油技術。According to the seismic convolution model, a kind of matched filters in time - scale domain is designed for echo signal detection of ground penetrating radar ( gpr ) and implemented in this paper, which is applied to detect the location and amplitude of single reflection wavelet in receiving signal through continuous wavelet transform
摘要根據地震褶積模型,設計並實現了應用於探地雷達回波信號檢測的時間尺度域匹配濾波器,利用小波變換的時間定位性和尺度伸縮性,檢測出雷達接收信號中單個反射子波的位置與強弱信息,利用已知的雷達發射子波模型還原回波信號,達到了濾除噪聲、最佳接收的目的。The absorbing boundary conditions to avoid the artificial boundary reflections must be required in the numerical simulation of seismic wave propagation
摘要在地震波傳播數值模擬的過程中,需要使用吸收邊界條件從而達到衰減人為邊界反射的目的。Thus many data of deflecting wells can be used for seismic inversion and the problem of multiple solutions can be solved to some degree. this technology comes up to advanced domestic standards. because the water base used to make up drilling mud comes from seawater, researches are made into the effects on resistivity of saltwater mud invasion and the values - selecting methods in reserves calculation are broken through, which continues to use terrestrial oilfields " parameters
針對勝利海上埋島油田叢式開發井組5 / 6井為斜井這種實際情況,對斜井聲波測井資料進行了環境校正,經過反復的攻關研究,通過合成地震記錄求準速度,實現了斜井資料的地震標定,解決了建立初始波阻抗模型的技術難題,使大量的斜井資料參與反演工作,減少了地質模型的多解性,提高了儲層預測的精度,該項技術達到了國內領先水平。The paper deduced movement and wave equation of seismic wave field in constant q viscoelastic media using the method of pseudo - spectral, and carried on forward modeling, the modeling result is the same with the one of other modeling ways
摘要本文採用偽譜法推導了常q粘彈介質中地震波場的運動方程和波動方程,並進行了地震波場數值正演模擬,模擬結果達到了其它模擬方法同樣的效果。Since in most rock samples poisson ' s ratio is very markedly anisotropic, some even greater than 30 % when the effect of microcracks is eliminated, the anisotopy of poisson ' s ratio must be considered when using poisson ' s ratio to inverse the crustal structure
由於泊松比也表現出很強的各向異性,在排除微裂隙的影響後有的仍可以達到30 %以上,在利用實際地震波傳播數據通過泊松比反演地下物質結構時必須考慮其各向異性的影響。Using the directional characteristic of the positive direction explodes elongated charge, wavefront of the elongated charge in the explode location shown higher directivity is in - phase stacked, and also propitious for p - wave to explode and travel
細長藥柱震源利用正向激發長藥柱的定向性特點,達到激發后的波前面在垂直向下的方向上是同相疊加的,顯示出很強的定向性,有利於縱波的激發和傳播。On the basis of the calculating of complexity ( c value ) and combination entropy ( h value ) from the numerical method of geoanomaly analysis, logged signals data ( spontaneous potential, acoustic slowness, spontaneous gamma ray and electrical resistivity ) and seismic data ( amplitude, frequency, phase, etc. ) are processed after regularization of data obtained from linqing basin of shengli oil field. many types of geoanomalies obtained from the computation are analyzed so the spacial variation rules of them can be discovered. then the oil regions can be predicted by this method
本文創新性地將地質異常概念引入油氣勘探領域,以地質異常理論為指導,以勝利油田臨清坳陷油氣地質異常預測研究為例,針對我國陸相含油氣盆地的常規測量、測試和解釋數據,如與地震相關的數據(振幅、頻率、吸收系數、層速度等) 、與測井相關的數據(自然電位、聲波、視電阻率、自然伽馬等)等,提取不同數據類型的地質異常以及異常組合特徵,通過對這些參數的綜合研究分析其空間變化規律,系統地建立有效預測油氣藏的新技術和新方法,進而達到區域油氣資源預測的研究目的。分享友人