Petrel Synthetic Seismograms
Bridge the gap between your time and depth domains.
Multi-trace synthetic generation lets you fine-tune your seismogram to match the seismic extracted in wells. The well correlation window helps you to assess the match. Any changes to the time-depth relationship can be made and seismic horizons can be correlated with the stratigraphic boundaries identified in your wells. When the time-depth relationship has been fine tuned, all depth indexed well tops will be automatically assigned the updated time value.
Benefits
- Minimize data load and transfer by using one application where synthetics are integrated with seismic and well logs.
- Improve your quality control by viewing your synthetic seismogram in a variety of windows including the 3D, interpretation or well correlation windows.
- Quickly process synthetics using the intuitive Windows guiding and help systems built into Petrel.
- The easy-to-use copy/paste functionality allows you to quickly present your interpretations to management in any Windows application like Word or PowerPoint.
Features
- Display synthetic seismograms with any other item in Petrel
- Display wells in time
- A "Process diagram dialog" guides you though the steps
- Wavelet extraction from seismic
- Well seismic
Display
The synthetic seismogram can be displayed in the well correlation window, 3D window and interpretation window.
Wells in time
When a time-depth relationship in wells has been established, wells can be displayed in the time domain in all 3D and intersection windows.
Process diagram dialog
The Synthetics process dialog leads you through the steps of generating synthetic seismograms from your well data, and simplifies the display of the data you need to use along the way.
Wavelet extraction from seismic:
Use a collection of traces around the borehole, compute auto-correlation for time window of interest, taper effects etc.
The workflow process for wavelet extraction involves trying several combinations of extraction parameters, recording the results, and trying different boreholes in order to gain a better understanding of the nature of the seismic data. The Wavelet Extract option in Petrel gives you the capability of extracting statistical wavelets from the seismic data at a borehole.
A wavelet can be extracted from some portion of a 3D volume of seismic traces. The statistical extraction method used in Synthetics assumes that the autocorrelation of the wavelet is the same as the truncated autocorrelation of the seismic trace. The average autocorrelation from several seismic traces is used to provide a more representative estimate of the wavelet.
Well seismic
The seismic can be extracted along the well paths and displayed. The extraction is not limited to the synthetic seismogram generation, but can be done for any type of seismic volume; hence you can display your seismic attributes in with well logs in the well correlation window.
* To access the synthetic seismograms you need the core module, well correlation and seismic interpretation module.
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