公开(公告)号：US08717845B2

公开(公告)日：2014-05-06

申请号：US13216978

申请日：2011-08-24

申请人： Bengt Mikael Boberg ,  Jon Falkenberg ,  Anders Goran Mattsson

发明人： Bengt Mikael Boberg ,  Jon Falkenberg ,  Anders Goran Mattsson

IPC分类号： G01V1/38

CPC分类号： G01V1/3835 ,  G01V1/3817

摘要： A survey method includes towing one or more sources and one or more streamers behind a vessel to acquire geophysical survey data. Steering signals are determined for at least one of: the one or more sources, the one or more streamers, and the vessel. The steering signals minimize an error function having parameters that include a measure of a cross-line position error and a measure of data quality. The cross-line position error may be measured as an offset of the sources or the receivers from their desired paths, or in some embodiments as an offset between midpoints for base survey traces and subsequent survey traces. Some embodiments may employ a maximum spatial cross-correlation coefficient between a newly acquired trace and one or more base survey traces as a data quality measure, while others may employ a time shift, a phase rotation, or a normalized root mean square error. Data quality may indicate sensor noise levels.

摘要翻译： 一种调查方法包括拖曳船只后面的一个或多个来源和一个或多个拖缆，以获取地球物理勘测数据。 对于以下中的至少一个确定转向信号：一个或多个源，一个或多个拖缆和容器。 转向信号使具有参数的误差函数最小化，该参数包括跨线位置误差的量度和数据质量的量度。 跨线位置误差可以被测量为源或接收器与其期望路径的偏移，或者在一些实施例中被测量为用于基本测量轨迹和后续测量轨迹的中点之间的偏移。 一些实施例可以采用新获取的跟踪和一个或多个基本测量轨迹之间的最大空间互相关系数作为数据质量度量，而其他实施例可以采用时移，相位旋转或归一化均方根误差。 数据质量可能表示传感器噪声水平。

公开(公告)号：US20130051175A1

公开(公告)日：2013-02-28

申请号：US13216978

申请日：2011-08-24

申请人： Bengt Mikael Boberg ,  Jon Falkenberg ,  Anders Göran Mattsson

发明人： Bengt Mikael Boberg ,  Jon Falkenberg ,  Anders Göran Mattsson

IPC分类号： G01V1/38

CPC分类号： G01V1/3835 ,  G01V1/3817

摘要： A survey method includes towing one or more sources and one or more streamers behind a vessel to acquire geophysical survey data. Steering signals are determined for at least one of: the one or more sources, the one or more streamers, and the vessel. The steering signals minimize an error function having parameters that include a measure of a cross-line position error and a measure of data quality. The cross-line position error may be measured as an offset of the sources or the receivers from their desired paths, or in some embodiments as an offset between midpoints for base survey traces and subsequent survey traces. Some embodiments may employ a maximum spatial cross-correlation coefficient between a newly acquired trace and one or more base survey traces as a data quality measure, while others may employ a time shift, a phase rotation, or a normalized root mean square error. Data quality may indicate sensor noise levels.

摘要翻译： 一种调查方法包括拖曳船只后面的一个或多个来源和一个或多个拖缆，以获取地球物理勘测数据。 对于以下中的至少一个确定转向信号：一个或多个源，一个或多个拖缆和容器。 转向信号使具有参数的误差函数最小化，该参数包括跨线位置误差的量度和数据质量的量度。 跨线位置误差可以被测量为源或接收器与其期望路径的偏移，或者在一些实施例中被测量为用于基本测量轨迹和后续测量轨迹的中点之间的偏移。 一些实施例可以采用新获取的跟踪和一个或多个基本测量轨迹之间的最大空间互相关系数作为数据质量测量，而其他实施例可以采用时移，相位旋转或归一化均方根误差。 数据质量可能表示传感器噪声水平。