公开(公告)号：US20140324358A1

公开(公告)日：2014-10-30

申请号：US14178049

申请日：2014-02-11

Applicant: WESTERNGECO L.L.C.

Inventor： PHILIP WILLIAM KITCHENSIDE

IPC: G01V1/30

CPC classification number: G01V1/28 ,  G01V1/36 ,  G01V2210/56

Abstract: Methods and computing systems for processing collected data are disclosed. In one embodiment, a method is provided for predicting a plurality of surface multiples for a plurality of target traces in a record of multi-component seismic data acquired in a survey area. The method may select a target trace. The method may select an aperture of potential downward reflection points for the target trace. The method may calculate dip propagation attributes from the multi-component seismic data. The method may map the dip propagation attributes into a multiple contribution attribute gather based on the aperture. The method may modify the aperture based on the multiple contribution attribute gather. The method may then predict multiples for the selected target trace using the modified aperture.

Abstract translation: 公开了用于处理收集的数据的方法和计算系统。 在一个实施例中，提供了一种用于在调查区域中获取的多分量地震数据的记录中预测多个目标迹线的多个表面倍数的方法。 该方法可以选择目标轨迹。 该方法可以选择用于目标迹线的潜在向下反射点的孔径。 该方法可以从多分量地震数据计算倾角传播属性。 该方法可以基于孔径将dip传播属性映射为多个贡献属性聚集。 该方法可以基于多个贡献属性集合修改孔径。 然后，该方法可以使用修改的孔来预测所选择的目标迹线的倍数。

公开(公告)号：US20140200812A1

公开(公告)日：2014-07-17

申请号：US14151594

申请日：2014-01-09

Applicant: Westerngeco L.L.C.

Inventor： PHILIP WILLIAM KITCHENSIDE

IPC: G01V1/30

CPC classification number: G01V1/364 ,  G01V2210/56

Abstract: Survey data corresponding to a subsurface region of interest is received. A wavefield is determined by iteratively performing the following until a specified condition is satisfied. For a current iteration, an element that includes a representation of at least one portion of the wavefield is selected based at least in part on a current residual representing an approximation error. For the current iteration, a respective data structure is computed from the selected element. The data structure is orthogonally projected onto a space spanned by a plurality of data structures including the computed data structure. The current residual is based at least in part on the orthogonal projection.

Abstract translation: 接收对应于感兴趣的地下区域的调查数据。 通过迭代地执行以下操作来确定波场，直到满足指定的条件。 对于当前迭代，至少部分地基于表示近似误差的当前残差来选择包括波场的至少一部分的表示的元素。 对于当前迭代，从所选择的元素计算相应的数据结构。 数据结构被正交地投影到由包括所计算的数据结构的多个数据结构跨越的空间上。 当前的残差至少部分地基于正交投影。