petrel能对曲线滤波吗？

cnelecn

请问各位高人，在petrel里做过曲线重构么，能像专业的曲线处理软件做滤波操作吗，除去指定的高频？

night1984

必须行，计算器或者外挂都行。

Joseph

确实没有关注过此功能，需要更多同行补充，在此谢过！

773377

查了下，对测井曲线是可以的，但是有限制：

Geophysics——Synthetic Seismogram——Seismic Well Tie——Log Conditioning——Frequency Filter



Frequency Filter

The Frequency filter operation allows you to analyze and filter the log's frequency spectrum.

Additionally the spectrum of a seismic trace at the well's position can be displayed as guidance. This filter can only be applied to a single log at a time. This operation will only be available if the well contains a defined Time-depth Relationship (TDR).

To apply the Frequency filter, you can drag the lower and upper frequency limit sliders. Once the filter is active, visual helpers are drawn over the log spectrum graph (sliding curtains), clearly showing the area of the excluded frequencies.

Note: This functionality is only available via the plugin WesternGeco Log and Seismic Conditioning, which you can acquire in the Ocean Store (www.ocean.slb.com).

773377

地震属性中也可以做Frequency Filter，在volume attributes里面。

The Frequency filter attribute enables you to specify frequency filtering on a time varying basis applied on the input seismic volume. Multiple time gates can be defined with a taper setting to control the overlap. It is possible to specify different filter and taper types:
Filter types: Butterwoth, Ormsby, Low pass, High pass, Ricker and Klauder

Taper types: Available for Ormsby based tapers (Ormsby, Low and High pass filter types): Cosine, Hanning, Hamming, Bartlett and Papoulis
Filters and Tapers can be combined in order to highlight areas or features of interest.



The left image belongs to the original seismic and the right one has filtered out lower frequencies between 0-12 Hz.

The Frequency Filter attribute is useful for enhancing particular seismic events or to reduce unwanted noise in the data. This can improve on the accuracy of interpretation.