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    METHODE D'ELABORATION DE CARTES AMELIOREES DE STRUCTURE TEMPS OU PROFONDEUR A PARTIR DE DONNEES SISMIQUES A DEUX DIMENSIONS
    151.
    发明公开
    METHODE D'ELABORATION DE CARTES AMELIOREES DE STRUCTURE TEMPS OU PROFONDEUR A PARTIR DE DONNEES SISMIQUES A DEUX DIMENSIONS 失效
    提高LOWER DISCHE结构的地图在二维地震数据的方法

    公开(公告)号：EP0991957A1

    公开(公告)日：2000-04-12

    申请号：EP98933702.7

    申请日：1998-06-24

    申请人： Elf Exploration Production

    发明人： KACULINI, Stefan ,  ARNAUD, Jean

    IPC分类号： G01V1/30

    CPC分类号： G01V1/301

    摘要： The invention concerns a method for producing improved maps of time or depth structure based on two-dimensional seismic data, consisting in migrating non-migrated 2D data at a velocity function V1 to produce an initial 3D map for a given reflector R2. The method is characterised in that it consists in de-migrating all the points P1 of the initial map to obtain de-migrated points P2, selecting the points P2 which are located on or in the proximity of acquisition lines L1.....Ln, migrating the selected points P2 at a velocity function V1 to obtain migrated points P3, reading the point P4 of the reflector R2 nearest to the point P3, de-migrating each point P4 to obtain a point P5 to which is assigned a horizontal component of the orthogonal slope associated with point P2, migrating the points P5 to obtain an intermediate 3D map and proceeding by iterative method until points P3 points P4 are convergent.

    METHODE DE DETECTION ET/OU DE DETERMINATION DE CARACTERISTIQUES LIEES A DES POINTS REMARQUABLES D'UNE IMAGE
    153.
    发明公开
    METHODE DE DETECTION ET/OU DE DETERMINATION DE CARACTERISTIQUES LIEES A DES POINTS REMARQUABLES D'UNE IMAGE 失效
    方法检测并确定设有带打点的图像相关

    公开(公告)号：EP0923764A1

    公开(公告)日：1999-06-23

    申请号：EP98935085.0

    申请日：1998-07-02

    申请人： Elf Exploration Production

    发明人： KESKES, Naamen ,  BAYLOU, Pierre ,  GUILLON, Sébastien, Appartement 349B, E23

    IPC分类号： G01V1 ,  G06T5 ,  G06T7

    CPC分类号： G01V1/301 ,  G06T7/12 ,  G06T2207/20164 ,  G06T2207/30101 ,  G06T2207/30184

    摘要： The invention concerns a method for detecting and/or determining characteristics related to remarkable points in an image, characterised in that it consists in evaluating the local dip variability of a first point in the image relative to at least another point located in the proximity of said first point, by computing the local anisotropy on said point gradient field, said anisotropy being dependent on terms related to a dispersion of orientations and to the module of gradient vectors, and at least one of said terms is weighted.

    摘要翻译： 本发明涉及一种用于检测和/或图像中的相关的显着的点确定性采矿特性，它DASS在图像相对于在到位于所述附近至少另一个点评估的第一点的局部倾斜变异besteht 罗克韦尔FirstPoint，通过计算在所述点的梯度场的地方各向异性，各向异性说依赖于有关取向的分散体和梯度向量的模块方面，所述术语中的至少一个被加权。

    Processing 3-D seismic data
    154.
    发明授权
    Processing 3-D seismic data 失效
    处理3-D地震数据

    公开(公告)号：EP0736185B1

    公开(公告)日：1997-07-09

    申请号：EP95939565.8

    申请日：1995-10-05

    申请人： AMOCO CORPORATION

    发明人： BAHORICH, Michael, S. ,  FARMER, Steven, L.

    IPC分类号： G01V1/28

    CPC分类号： G01V1/301 ,  G01V1/288

    摘要： A method for the exploration of hydrocarbons, comprising the steps of: obtaining a set of seismic signal traces distributed over a pre-determined three-dimensional volume of the earth; dividing the three-dimensional volume into a plurality of vertically stacked and generally spaced apart horizontal slices; dividing each of the slices into a plurality of cells having portions of at least three seismic traces located therein; measuring the cross-correlation between one pair of traces lying in one vertical plane to obtain an in-line value and the cross-correlation between another pair of traces lying in another vertical plane to obtain a cross-line value; combining the in-line value and the cross-line value to obtain one coherency value for each of the cells; and displaying the coherency values.

    A method for derivation of interval velocities from post-migration parts
    155.
    发明公开
    A method for derivation of interval velocities from post-migration parts 失效
    一种用于从后移动部件传播间隔电压的方法

    公开(公告)号：EP0434456A3

    公开(公告)日：1992-03-18

    申请号：EP90314137.2

    申请日：1990-12-21

    申请人： CONOCO INC.

    发明人： Wang, Shein-Shion ,  Hanson, Douglas W. ,  Cavanaugh, Thomas D.

    IPC分类号： G01V1/28 ,  G01V1/30

    CPC分类号： G01V1/301 ,  G01V1/282

    摘要： A method for derivation of interval velocities from post-migration parts first includes the step (14) of determining the apparent depth and slope of an event. The apparent depth of an event is measured. The travel time of the recorded reflection for a particular offset is determined by ray-tracing through the old model and recorded (16). A trial velocity is assigned to the layer between events in the new model (18). The depth of the reflector is varied up or down until the computed travel time agrees with the measured travel time (22), keeping the source/receiver separation contant. A new velocity for the layer between reflectors is selected (24) for rich the depths at each offset are the same.

    摘要翻译： 用于从迁移后部分推导间隔速度的方法首先包括确定事件的表观深度和斜率的步骤（14）。 测量事件的表观深度。 记录的反射对于特定偏移的行进时间由通过旧模型的射线跟踪确定并记录（16）。 在新模型（18）中，事件之间的层被分配试验速度。 反射器的深度向上或向下变化，直到计算的行进时间与测量的行进时间（22）一致，保持源/接收器分离。 选择反射器层之间的新速度（24），以使每个偏移处的深度相同。

    Constant offset migration velocity analysis
    156.
    发明公开
    Constant offset migration velocity analysis 失效
    康斯坦丁Offset Migrationgeschwindigkeke分析。

    公开(公告)号：EP0442719A2

    公开(公告)日：1991-08-21

    申请号：EP91301159.9

    申请日：1991-02-13

    申请人： CONOCO INC.

    发明人： Hanson, Douglas W. ,  Parsons, Roger K.

    IPC分类号： G01V1/30

    CPC分类号： G01V1/301

    摘要： A method for determining accurately the migration velocities for use in seismic migration processing of seismic data. The method presorts the seismic data into common-offset sections (14). The common-offset data is then migrated repeatedly with a selected range of velocities (16-22). The migrated data for each velocity is further sorted into a common-image point profile (24). The correct velocity per depth may then be determined by either determining the least time moveout for the common-image point at each depth (26), or computing the semblance for each common-image point and each test velocity and selecting the largest semblance value.

    摘要翻译： 准确地确定地震数据地震偏移处理中使用的迁移速度的方法。 该方法将地震数据预设为共偏移部分（14）。 然后，以选定的速度范围（16-22）重复迁移公差补偿数据。 每个速度的迁移数据被进一步分类到公共图像点轮廓（24）中。 然后可以通过确定在每个深度（26）处的公共图像点的最小时间偏移来计算每个深度的正确速度，或者计算每个公共图像点和每个测试速度的相似度并选择最大相似值。

    A method for derivation of interval velocities from post-migration parts
    157.
    发明公开
    A method for derivation of interval velocities from post-migration parts 失效
    Verfahren zur Intervalgeschwindigkeitsableitung von Postmigrationsteilen。

    公开(公告)号：EP0434456A2

    公开(公告)日：1991-06-26

    申请号：EP90314137.2

    申请日：1990-12-21

    申请人： CONOCO INC.

    发明人： Wang, Shein-Shion ,  Hanson, Douglas W. ,  Cavanaugh, Thomas D.

    IPC分类号： G01V1/28 ,  G01V1/30

    CPC分类号： G01V1/301 ,  G01V1/282

    摘要： A method for derivation of interval velocities from post-migration parts first includes the step (14) of determining the apparent depth and slope of an event. The apparent depth of an event is measured. The travel time of the recorded reflection for a particular offset is determined by ray-tracing through the old model and recorded (16). A trial velocity is assigned to the layer between events in the new model (18). The depth of the reflector is varied up or down until the computed travel time agrees with the measured travel time (22), keeping the source/receiver separation contant. A new velocity for the layer between reflectors is selected (24) for rich the depths at each offset are the same.

    摘要翻译： 用于从迁移后部分推导间隔速度的方法首先包括确定事件的表观深度和斜率的步骤（14）。 测量事件的表观深度。 记录的反射对于特定偏移的行进时间由通过旧模型的射线跟踪确定并记录（16）。 在新模型（18）中，事件之间的层被分配试验速度。 反射器的深度向上或向下变化，直到计算的行进时间与测量的行进时间（22）一致，保持源/接收器分离。 选择反射器层之间的新速度（24），以使每个偏移处的深度相同。