GeoTeric's Iso-Proportional Slicing tool allows the interpreter to create iso-slices between horizons in a proportional or conformant manner to quickly gain a better understanding of the geology. Either volumes or colour blends can be used for input. A set of attributes are calculated within the sli...
GeoTeric's Iso-Proportional Slicing tool allows the interpreter to create iso-slices between horizons in a proportional or conformant manner to quickly gain a better understanding of the geology. Either volumes or colour blends can be used for input. A set of attributes are calculated within the slices and displayed as maps of the horizons. When we talk about reflection seismic data, most users can explain these attribute, such as e.g. Maximum +ve (Positive) Amplitude and RMS Energy. However, we frequently get the question: How are these attributes calculated in a colour blend and what do they mean?
This weeks blog post continues to look at frequency decomposition techniques available in GeoTeric. We previously looked at the Constant Bandwidth technique, we now look at another Standard Frequency Decomposition technique, the Constant Q.
The Standard Frequency Decomposition module uses bandpass filters to carry out decomposition with properties similar to either a Fast Fourier Transform (FFT) or to a Constant Wavelet Transform (CWT). Due to the nature of the waveform transformation between the frequency and time domains there is resulting uncertainty, as defined by uncertainty principle. Therefore, the different frequency decomposition methods show differences between the frequency resolution and temporal resolution with the two being traded off against each other.
With the release of GeoTeric 2016.2.1, the user can now take advantage of the new Stratigraphic Slicing workflow. This workflow allows the user to rapidly create a series of stratigraphically conformant slices which can then be used to extract data from any of the volumes or colour blends available in their project. The Stratigraphic Slicing workflow consists of the following steps:
Colour blending is one of the most powerful visualisation tools currently available to geoscientists. Through this one simple process, the user is able to concurrently view the information from three different volumes, allowing them to interpret their data with more confidence. While there are other methods of interrogating multiple volumes, none offer the same level of data density at one time and although interpretation can be done by moving between multiple volumes, it is far more difficult to notice subtle variations.