| Among the most critical parameters considered when drilling a deep well are fluid pore pressures within the formation. The only method for obtaining information on subsurface conditions (other than from drilling) is geophysical prospecting. PORE constructs Penne-baker plots from seismic stacking velocity data to determine formation pore pressures. (Pennebaker plots compare depth versus velocity on a log/log scale.) Any divergence from normal compaction lines in shales may indicate under-compaction and overpressuring.
 View QuickTour of PORE
Advanced Engineering Features
- Presents several time vs. depth tables for identifying abnormal pressure sequences based on seismic data
- Calculates formation depth, average velocity, interval velocity and 500-ft travel time based on two-way time and RMS velocity input
- Uses Pennebaker plots to determine formation pore pressures from two-way time, calculated formation depth and 500-ft travel time
Cost Saving
- Results allow engineers to predict abnormal pressures and avoid problems in the field
- Allows more accurate selection of casing-seat depths
- Enhances operational efficiency
Easy to Use
- Step-by-step problem solving approach
- Can link to databases such as DIMS
- Can create MS Office reports
- Advanced graphics can be exported to any Windows program
- S.I., Oilfield and mixed units
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PORE analyzes seismic velocity data to indicate potential overpressuring.
Pennebaker plots are used to rapidly highlight interval travel times that deviate from the normal trend.
Output plots show several parameters with depth. Nonlinearities between variables are caused by formation compaction.
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