公开(公告)号：WO1997013165A2

公开(公告)日：1997-04-10

申请号：PCT/US1996015925

申请日：1996-10-03

Applicant: AMOCO CORPORATION

Inventor： AMOCO CORPORATION ,  MUELLER, Michael, C. ,  THOMSEN, Leon ,  TSVANKLIN, Ilya

IPC: G01V01/28

CPC classification number: G01V1/284

Abstract: A method for measuring and using anisotropy in a coal bed sequence. The method includes the steps of: stripping layers where polarization changes are indicated by applying a static shift to components aligned with the slow shear wave polarization direction and applying one half of the static shift to components neither aligned with the slow shear wave polarization direction nor aligned with the fast shear wave polarization direction; obtaining for a coal bed a measure of the amplitude of the envelope of the fast polarization trace; rotating, by about 45 degrees away from a principal direction, the data set for that coal bed; obtaining a measure of the amplitude of the envelope of at least one of the mixed/mismatched polarization traces of that coal bed; and obtaining the ratio of the amplitude of the envelope of the fast polarization trace to the amplitude of the envelope of one mixed/mismatched polarization trace in that coal bed.

Abstract translation: 一种用于测量和使用煤层序列各向异性的方法。 该方法包括以下步骤：通过对与慢剪切波偏振方向对准的分量施加静态偏移并将静态位移的一半施加到与慢剪切波偏振方向不对准的分量上而不是对准 具有快剪切波极化方向; 获得煤层，测量快速极化轨迹的包络的幅度; 旋转，离主要方向约45度，为该煤层的数据集; 获得所述煤层的混合/错配的极化轨迹中的至少一个的包络的幅度的量度; 并且获得快速极化轨迹的包络的幅度与该煤层中的一个混合/失配的极化轨迹的包络的幅度的比值。

公开(公告)号：EP0796441A2

公开(公告)日：1997-09-24

申请号：EP96936189.0

申请日：1996-10-03

Applicant: AMOCO CORPORATION

Inventor： MUELLER, Michael, C. ,  THOMSEN, Leon ,  TSVANKLIN, Ilya

IPC: G01V1

CPC classification number: G01V1/284

Abstract: A method for measuring and using anisotropy in a coal bed sequence. The method includes the steps of: stripping layers where polarization changes are indicated by applying a static shift to components aligned with the slow shear wave polarization direction and applying one half of the static shift to components neither aligned with the slow shear wave polarization direction nor aligned with the fast shear wave polarization direction; obtaining for a coal bed a measure of the amplitude of the envelope of the fast polarization trace; rotating, by about 45 degrees away from a principal direction, the data set for that coal bed; obtaining a measure of the amplitude of the envelope of at least one of the mixed/mismatched polarization traces of that coal bed; and obtaining the ratio of the amplitude of the envelope of the fast polarization trace to the amplitude of the envelope of one mixed/mismatched polarization trace in that coal bed.