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公开(公告)号：US4881209A
公开(公告)日：1989-11-14
申请号：US256674
申请日：1988-10-12
CPC分类号： G01V1/286 , G01V1/362 , G01V2210/52
摘要： Method for processing converted mode seismic data. Compressional and converted compressional to shear wave data is acquired by generating compressional energy into a subsurface formation and recording the amplitude of reflections as a function of time at spaced locations along a line of exploration. A series of compressional to shear wave velocity (Vp/Vs) ratios are selected based on an analysis of the acquired seismic data and the shear wave velocity for each Vp/Vs ratio is determined according to the following relationship: ##EQU1## where k=Vp/Vs. Data corresponding to each Vp/Vs ratio is stacked together, the series of stacks are correlated to the originally acquired seismic data to determine the actual Vp/Vs ratio for the formation and the shear wave velocity is derived. The originally collected data is then corrected for normal moveout and stacked.
摘要翻译： 转换模式地震数据处理方法。 压缩和转换的压缩到剪切波数据是通过产生压缩能量进入地下地层并记录反射振幅作为沿着探索线的间隔位置的时间的函数来获取的。 根据获取的地震数据的分析选择一系列压缩至波速（Vp / Vs）比，并根据以下关系确定每个Vp / Vs比的剪切波速度：
+ TR < IMAGE>其中k = Vp / Vs。 对应于每个Vp / Vs比的数据堆叠在一起，一系列堆叠与原始获取的地震数据相关，以确定形成的实际Vp / Vs比，并导出剪切波速度。 然后对原始收集的数据进行校正，以进行正常的移出和堆叠。 -
公开(公告)号：US4286218A
公开(公告)日：1981-08-25
申请号：US63491
申请日：1979-08-06
IPC分类号： G01V3/08
CPC分类号： G01V3/082
摘要： A method of magnetotelluric exploration is disclosed which features multiple measurements of the earth's electric field at a plurality of locations and one or more magnetic field measurements being made simultaneously. A specific form of cable for connecting measurement apparatus with recording apparatus is also disclosed.
摘要翻译： 公开了一种大地电磁勘探方法，其特征在于在多个位置具有多个测量地球的电场，同时进行一个或多个磁场测量。 还公开了用于将测量装置与记录装置连接的具体形式的电缆。
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3.发明授权
公开(公告)号：US4241429A
公开(公告)日：1980-12-23
申请号：US883087
申请日：1978-03-03
CPC分类号： G01V1/301
摘要： In seismic exploration, linear, multiple fold, common depth point sets of seismograms with three dimensional reflection geometry are used to determine the dip and strike of the subsurface reflecting interfaces and the average velocity of the path of the seismic energy to the reflecting interface. The reflections in each set appear with time differences on a hyperbola with trace spacings determined by the source receiver coordinate distance along the lines of exploration. The offset of the apex of this hyperbola is determined from a normal move-out velocity search of the type performed on two dimensional CDP sets. This search identifies the correct stacking velocity and hyperbola offset which are used to determine dip, strike and average velocity.
摘要翻译： 在地震勘探中，使用线性，多重折叠，具有三维反射几何的常见深度点地震图集来确定地下反射界面的倾角和撞击以及地震能量路径到反射界面的平均速度。 每组中的反射在双曲线上随时间差异出现，跟踪距离由沿着探测线的源接收器坐标距离确定。 根据在二维CDP组上执行的类型的正常移出速度搜索来确定该双曲线的顶点的偏移。 该搜索确定用于确定倾角，撞击和平均速度的正确的堆叠速度和双曲线偏移。
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